Juego Completo de Libre Kart Racing Planes

7/29/2019 Juego Completo de Libre Kart Racing Planes

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Juego completo de Libre Kart Racing planes.

Estos planes contienen informacin sobre cmo construir y construir este Kart Racing.Que contienen todos los detalles necesarios, incluyendo tuercas, pernos y arandelas.

Los planes pueden ser vistos usandoAdobe Acrobatque se instala normalmente en lamayora de los ordenadores.Sintase libre para descargar e imprimirlas en ti mismo, pero por favor no redistribuir

estos planes Kart Racing, pero en cambio se sienten libres de hacer referencia y decir ala gente acerca de estos planes de aqu enwww.kartbuilding.netPor ltimo - si hay detalles que faltan de sentir el juego completo de Racing Kart planes

de abajo, por favor escriba a m y, y me esforzar para aadirlos a la serie siguiente.

mbito de aplicacin de los planes de Kart Racing

Este conjunto de planes de Kart Racing no cubren la transmisin, configuracin detraccin ni freno de motor o de la seleccin. Estos planes de Kart Racing, a diferenciadeLibre Off-Road Kart planesno cubren los mtodos de toma de Kart, y asumir loscojinetes, bujes, ruedas y ejes son adquiridos de proveedores de ingeniera local. Porfavor refirase a las dems secciones de este sitio web Kartbuilding para este tipo dedetalles extra en los motores, frenos, rodamientos, y la unidad de transmisin, ruedas,direccin, etc

Desglose de la serie completa de planes de Kart Racing

Hay una por separado 1 pgina PDF para cada rea de la Kart Racing. Estn dispuestos1 a 20, en el orden en que se empiezan a hacer el kart, es decir: N 20 es la ltima etapade la toma de Kart Racing.Estos dibujos paso a paso muestra las asambleas, de subconjuntos y los detalles de ms

de 40 componentes. Los detalles de cada dibujo y el paso se describe a continuacin,con informacin sobre el cambio de piezas y componentes para adaptarse a su

presupuesto.

1. -Completar el montaje del Kart Racing

Este dibujo (haga clic en el link arriba) muestra el general, Diseo y Dimensiones /Tamao del Kart Racing. Usted tambin ser capaz de ver los diferentes elementosinvolucrados en la toma de la Kart Racing - de la sede, a las ruedas, a los ejes, etc.Las dimensiones principales del Kart Racing son: 1.6meters Largo x Ancho1.2meters, y atender a las de tamao medio conductor. La ubicacin de la sede, elmotor, el volante y los pedales se pueden ver. Tenga en cuenta que la colocacindel motor y el asiento es a ti mismo y no importa mucho. La principal razn deque el motor est a la derecha del conductor se debe a que en los motores demoto, la caja de cambio es por lo general a la izquierda del motor. As, con el

motor a la derecha, slo una palanca de cambios de corta distancia es necesariocambiar de marcha que proporciona positivo. La columna de direccin y volante y
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pedales puede ser fcilmente un ngulo a un lado para que estn al alcance delconductor. Hay varias otras caractersticas tales como roll-bars/cage, interruptorasde apagado de emergencia, protectores de cadena, etc. suspensin, que se puedeimplementar fcilmente en este diseo.

2. -Etiquetado general de las Kart Racing

Visin general del etiquetado del Kart Racing ayuda a los principiantes aidentificar las partes claves de un kart, los nombres de lo que puede parecercomplicado al principio. Piezas clave para identificar son "King Pins", "Columnade Direccin", "Track Rods", "Frente Stub Eje", "bujes de Apoyo", "frenos", etcCada una de las partes individuales y componentes dentro de este dibujo # 2 sediscutido y con ms detalle en los dibujos # 3 a # 20 infra.

3. -Chasis

El chasis es la pieza ms importante / seccin en el kart entero. Todas laspiezas y componentes pueden ser cambiados en una fecha posterior. Comoresultado de ello - una buena cantidad de tiempo debe ser gastado de planificacin,extraer, cortar y soldar el chasis junto. Las dimensiones dadas son adecuadaspara un promedio de tamao del conductor. Se puede comprobary confirmarestos tamaos fcilmente, mediante la colocacin de los componentes (ruedas,motor y asiento) para el diseo de este dibujo. Colquese en el asiento, y asegresede que hay suficiente espacio para el asiento, pedales, volante, etc El frente

planteado parachoques y el "King Pin de montaje" debe dejarse para el final.El chasis est hecho de 25 mm de dimetro exterior con tubos un espesor de paredde 3 mm para facilitar la soldadura a travs de un MIG o MMA / Stick Welder.Sera aconsejable para sacar el chasis en el suelo con tiza, y reducir la longitud de

la tubera sobre la base de esto. Las longitudes de los tubos pueden ser fcilmenteclavado en el lugar con la soldadura. Medida del chasis para asegurarse de quees cuadrada, es cierto, y no torcido. Los bloques de hormign pueden serutilizados durante la soldadura para asegurar los tubos planos en el suelo. Si ustedtiene acceso a una Pipe Bender - sera conveniente para doblar la derecha e

izquierda delante de un tramo de tubera. La razn de que el chasis es estrecho enel centro frente - es permitir que el chasis a la torsin (un poco) al ir a las esquinas.El chasis debe ser capaz de torcer, de lo contrario el kart no dirigir las esquinascorrectamente, y en lugar de moverse en lneas rectas solamente. El ngulo camber

produce el pequeo giro / flex en el chasis en las curvas. Usted notar el ngulo decada en un coche cuando el volante est totalmente cerrado a la derecha o a laizquierda. Las ruedas delanteras del auto ser un ngulo de 85degrees al suelo

proporcionando una mejor traccin y mejor en las curvas. Antes haba sidototalmente soldada entre s. El ngulo de ricino ayuda a mantener las ruedasdelanteras apuntando hacia delante, y como resultado, si el volante se solt - el kart

debe ir en lnea recta.El "King Pin de montaje" pieza se muestra en su forma ms simple con
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casquillo NO ha utilizado. Es simplemente un pedazo de barra de 25 mm dedimetro de metal, 65 mm de largo, con un dimetro de 13mm agujero en el centro(13 mm es el dimetro del tornillo King Pin sido utilizado para fijar los ejesdelantero Stub). Una insercin de latn especial de moda y se puede utilizartambin. Asegrese tambin de que no hay agujeros o como resultado de lasoldadura, en los principales miembros del chasis, ya que esto debilitaraconsiderablemente. Triturar todas las soldaduras con un archivo o Picadoraangular asegurarse de que son acertadas.Sera una buena idea en este momento de aplicar una imprimacin y capa de

pintura de metal Hammerite al chasis.

4. -Frente Stub Ejes y pivotes

El eje delantero y Stub King Pin es una obra completa, sin embargo hay una pieza

de mano izquierda y la derecha - lo que no son idnticos. Slo la manoizquierda Frente Stub Axle y King Pin se describe en el dibujo anterior. Con unpoco de sentido comn, una parte de la mano Rigth puede ser fcilmente de moda.La "n" pedazo de Perno est formado por soldadura de 3 piezas de acero plano paraformar una "n" de forma. El brazo de direccin est soldada a continuacin, elperno rey (n en forma de pieza). Nota de este brazo de direccin puede sersoldada a la parte superior del pivote de la prestacin de un mayor margen. En los

planes de lo anterior, se coloca en el fondo, poniendo las barras estabilizadoras bajoel chasis y por lo tanto no interfiere con los pies de los conductores, etc El ngulode 110 grados es un clculo a partir del principio de Ackermann que se trata ms

detalladamente en este sitio webaquyaqu. El taln de pieza propio eje estsoldado en el lado del perno rey.Si usted no tiene acceso a un torno metalistera para producir la pieza como en

el anterior dibujo, se puede simplificar con, la obtencin de una barra de metal de20 mm de dimetro, 125 mm de longitud . Obtener un perno de 13mm, y cortar lacabeza de ella. Luego soldar el perno de 13mm hasta el final de la barra de metalde 125mm de largo. Por ltimo, para evitar que la rueda delantera se mueva en elen el eje Stub, obtener un pedazo de tubo, dentro de 20 mm de dimetro yaproximadamente el dimetro exterior. 30mm. De soldadura de este pequeo trozo

de tubo a la distancia correcta en el interior de la rueda delantera. El ngulo de78degrees es contrarrestar los 12degrees ngulo de cada, como fue cubierto en elchasis de Dibujo.Adjuntar los ejes delantero y Stub King Pins al chasis mediante 13mm High

Tension Tuercas y tornillos con arandelas en los lugares adecuados. Los dos ejesStub Frente pivote y ahora debe moverse de lado a lado. La pista "varillas" se unenlos brazos de direccin, que estn soldadas a los pines de King. Esto se pondr derelieve y contempla ms adelante, en el dibujo N 12.

5. -Portador del eje trasero
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La Aerolnea Eje trasero permite que los cojinetes posterior para ser aseguradoal chasis, mientras que alloing el eje trasero para girar libremente. Hay dos

placas de compresin que muy bien a ambos lados de un rodamiento de rodillosnormales. Estos rodamientos de rodillos son ms baratas que comprar una unidad,

pero no son el mtodo ideal. Al comprar estos rumbos, y haciendo que el eje -debe asegurarse de que existe una muy estrecha correspondencia entre elinterior del cojinete y el exterior del eje. De lo contrario el eje puede girar en elinterior del rodamiento - y el rodamiento no servira a su propsito en todos! Eldibujo de arriba muestra un muy seguro, sin embargo, complicado mtodo defijacin de estos rodamientos al chasis. En lugar de hacer el recinto rectangular,sera posible soldar una sola placa de acero verticales (6mm) para el chasis, y luegousar la placa de presin triangular para exprimir el rodamiento, asegurando el bordeexterior del cojinete bien permitiendo al mismo tiempo el interior RIM / centro paragirar libremente. De 8mm de dimetro de alta tensin tornillos de acero se utilizan

para apretar a ambos lados del cojinete, como se puede ver en el dibujo anterior.Asegrese de utilizar las arandelas y tuercas de bloqueo para que no se afloje con eltiempo.Una opcin ms sencilla de lo anterior sera la de comprar "Teniendo Pilar"

unidades que simplemente tornillo en el chasis. Estos pueden proceder de susproveedores locales de ingeniera.

6. -Eje trasero completo

El eje trasero pueden ser fabricados utilizando varios mtodos, y depende de si

usted tiene acceso a un torno y fresadora metalistera. El eje mismo essimplemente una barra larga de 1.100 mm de metal slido de 30 mm dedimetro. Lo ideal sera que no habra "ranuras" Molido / Tierra en esta barrade metal, que en relacin con un metal "clave" dejar de las ruedas traseras,rueda dentada y la compaa de freno girando libremente sobre el eje. La ideaes que las ruedas, la rueda dentada y Carrier Carrier freno todos giro con el eje.Esto se conoce como "Live Eje" - es decir, el propio eje gira (en oposicin a un ejefijo). Podra ser posible utilizar un Picadora angular para cortar / grind estasranuras. Tambin podra ser posible soldar los ejes de las ruedas y el Carrier

Sprocket directamente en el eje trasero - sin embargo no es recomendable. A pesarde las ruedas de soldadura en el eje trasero proporciona una solucin rpida, si lasruedas quiere ser cambiado, o una rueda dentada, etc cambiado todas las soldadurasdebern ser de tierra off (que es una tarea tediosa).Tambin se dar cuenta de 2 piezas de hombro (dimetro 40 mm, 25 mm de largo).

Se trata de piezas de tubos, etc, que son soldados (a travs de soldar por puntos) ogrub atornillados al eje. Estos hombros prevenir el propio eje de deslizamiento /desplazamiento izquierda y derecha en el centro de los rodamientos del ejetrasero. Nota: Si has comprado y est utilizando "Cojinetes Pilar" - no necesitaesos hombros, como las unidades Teniendo Pilar proporcionar un prisionero

incorporado detener el eje de movimiento de lado a lado.
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7. -Bujes y ruedas traseras

Este dibujo muestra # 7 Los detalles para hacer / comprar adecuada ruedaHubs que se utilice para fijar la rueda en el eje trasero.Nota: Algunas ruedas no requieren de un concentrador. Un carro grande /rueda carretilla tiene un hub incorporado, y no necesita un centro independiente.En estos casos, la rueda se puede colocar directamente sobre el eje trasero, yatornilladas / soldadas en su lugar. Ruedas anchas Kart Racing sin embargorequieren de un concentrador para garantizar a s mismo en el eje trasero. Usted

puede optar por comprar el centro adecuado para la rueda que tiene, o tratar dehacer un centro adecuado a ti mismo. Sera posible hacer un simple cubo. Lasmediciones y los detalles para el Centro en este dibujo es un poco complicado parala persona promedio que hacer, pero muestra las piezas clave necesarias en uncentro tpico, que son: una correspondencia Chavetero a la del eje trasero, un

tornillo Pinch apretar el eje en el eje trasero para evitar que se desplaza de izquierdaa derecha.

8. -Los transportistas de freno y rueda dentada

El freno y carretillas Sprocket son exactamente el mismo como ejes utilizadospara las ruedas traseras. Agujeros adicionales pueden tener que ser perforado enel disco de freno y la rueda dentada con el fin de aceptar los pernos. Uso de 8mmde alta tensin pernos de acero con arandelas y tuercas de bloqueo.

9. -Frenos traseros

Hay algunas opciones que se pueden tomar cuando se instala Frenos en un kart.Normalmente se incluyen la colocacin de un "freno de disco" en el eje trasero, yluego tener "freno Calibradores / Shoes" fijado en el bastidor. Esta muestra dedibujo slo eso - la colocacin de las pinzas de freno y disco en el eje trasero, y lossoportes necesarios para garantizar las pinzas, evitando que gire.Nota: Dependiendo de la velocidad de su Kart - usted puede requerir frenos en lasruedas delanteras - Sin embargo esto requiere ms trabajo y planes. Por elmomento - Frenos sobre el eje trasero debera ser suficiente.Para el aprovisionamiento de el disco de freno y pinzas, sera mejor tomar la

totalidad del bloque delantero completo fuera de motos pequeas. Deja todos lostubos hidrulicos de freno en su lugar. La posicin de la palanca de freno en elchasis - cerca de las pinzas en el eje trasero. Accione la palanca del freno (fuera dela moto) del pedal de freno a travs de un cable de manual. Se puede ver en accinaquyaqu.

Chassis Construction
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This is the layout for a Kart seating an average person but it is advised that you roughlylays out this design on the ground, placing a wheel at all four corners, the seat and theengine side by side. The measurements given below will not need to be altered much asthere is room for movement for a bigger seat and/or bigger engine on both sides. My

advice on going to construct this is to draw out the shape below on a 8 * 4 foot sheet ofplywood, if your desperate you can draw it out on a strip of felt underlay with chalk.But the sheet of ply is the much better option, as you can work from this right throughout the welding and bending operations what you can do is place all the sections of pipecut to the exact length on this sheet, drive in nails both sides of the pipe and weld all thesections togethor without too much distorsion taking place. But be ware of fires. I'll takeno responsibility if you burn your house down.

The most complex detail in this chassis is the pipe bending. Like myself a lot of peopleare not the owner of a pipe bender capable of bending 25mm mild steel tubing with a

wall of 3mm. What I did an what a lot of ye will need to do is to go to your local

engineering firm show him this plan and get him to bend that section out. Stay Clear ofDear Firms. One engineering firm told me that it would cost too much to set up the

machine. A place down the road supplied that section of pipe and did all the bending for30. So shop around. If desperation kicks in got to this link. Pipe bending

A welder is a necessity in this entire projct. It doesn't have to weigh a ton, a small 120amp welder will be suffieient. I only have a 100 amp welder and I have to be very

patient with it. But I got my Kart built. If all you have is a 100 amp welder or less youwill definately need to use 2.5 SWG welding rods.

This is the most important section of the entire Kart, spend a good week or two makingthis section. Have no holes in the joints or anywhere for that matter. If this section isconstructed well it will serve you for years and for a number of engines. Mine wentthrough 4 major engine and drive changes as ca be seen in my "Pictures of various

karts.." at my homepage.

**Rember this is the support for every single thing **
http://www.kartbuilding.net/Freeplans/pipebending.htmhttp://www.kartbuilding.net/Freeplans/pipebending.htmhttp://www.kartbuilding.net/Freeplans/pipebending.htm


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All the main frame chassis is made out of 25mm (outside diameter)"gunbarrel". Leave all the bumpers, pedals and steering untill later on they are only usedin this diagram to aid dimensioning.


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Below are a few methods of fixing the rotating live axle to the chassis.

The axle I recommend for this kart is either 25mm or 30mm of Diameter. So all fixturesare based on this measurement. This axle can be a plain metal bar cut to the correctlength with the bearings grubs crewed to the axle. Depending on the hubs you decideupon, these can be keyed/grubs crewed to the axle as well. If you decide upon, thequick, simple and very effective stainless hubs from a wheelbarrow with flat groovedtyres, all you need do is to spot the hub onto the axle, which can be easily ground off at

any time. On the wheelbarrow wheels I used, the internal diameter was 25mm, but myaxle was turned on a lathe, with my bearings pressed on all requring different diameters.


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But if it is possible to get access to a lathe, a length of 120mm at both ends could beturned from a 30mm axle down the required diameter. If you don't, you will have to optfor a 25mm axle.

Don't forget that the brakes and sprocket have to be mounted to this axle, so wait before

you go rushing in welding things togethor. This section is next in the free plans page.Brake and Sprocket

If you decide upon proper aluminium/plastic hubs, I have plans drawn up for aproper axle hub. Only if you have access to a lathe and the appropiate materials shouldyou set about making hubs. Stick with wheelbarrow hubs, etc with an internal diameter+ bush.Plans For Hubs

This first method is the one you should use.

This first method is the most easiest and simplest of them all. I know the diagram looks

a bit complicated but all it is, is a housing for a self aligning bearing. The whole unitjust bolts onto the chassis on both sides. Easy, simple, quick, less hassle, lasts forever. Agrub screw secures the spinning sleeve of the bearing inside the housing to the axle. Thelittle nib you see is for a bit of oil now and again. Some come greese packed requiringno attention ever. The ONLY problem is that they will set you back from between 30and 50 quid, for an axle of diameter of 30mm. Too dear for the Kart I was building.However you will have to weld a plate to the chassis onto which you can bolt on this

bearing, otherwise you would have to drill 4 8mm holes in the chassis, which willdestroy the chassis. Take note - NEVER DRILL ANY HOLES IN THE CHASSIS,

believe me I learned the hard way, the hole chassis bent out of shape with the middle ofthe ground nearly hitting off the ground, I had to straighten it all out and weld heavyangle iron to reinforce it.

Scrolldown for other methods
http://www.kartbuilding.net/Freeplans/brakeandsprocket.htmhttp://www.kartbuilding.net/Freeplans/brakeandsprocket.htmhttp://www.kartbuilding.net/Freeplans/hub.htmhttp://www.kartbuilding.net/Freeplans/hub.htmhttp://www.kartbuilding.net/Freeplans/hub.htmhttp://www.kartbuilding.net/Freeplans/hub.htmhttp://www.kartbuilding.net/Freeplans/brakeandsprocket.htm


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The method I used for my Kart is thefollowing.

This design/method would not be possible forme to make without the very helpful assistance

of a lathe lecturer in a training college. Thismay well be far beyond many of yourcapabilities but take a look. I bought twoordinary plane roller bearings for 8 each. Ithen got a housing turned out to house them(see fig below), and into which the bearings

were pressed, and in turn the whole unit was pressed onto the rear axle. There were fourholes in each of the housings onto which I could bolt onto a plate which was in turn

welded to the chassis as shown (weld symbolleft).

As you can see from the section the bearingwas simply pressed into the housing.

See also the four mounting holes.

You can also see the setup I have at themoment, including everything except for the

hubs, the wheelbarrow wheels are just spotted to the axle. Whatever bearings methodyou decide to use you will either have to take down the ends of a 30mm axle on a lathe,or opt for a slightly weaker 25mm axle. You will also see that a 8mm steel plate iswelded to the chassis, onto which the bearings can be bolted onto. This aids easyremoval, without weakening the axle. Forget about the machined hubs unless you knowsomeone with a lathe. I you are using a 30mm axle, I suggest that about 125mm should

be taken down at both ends. The brakes and sprocket mountings will be discussed later,so weld nothing permanently, to axle or to chassis.

Another crude and very cheap method is to use a VERY simple bushing arrangement onthe axle.


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This I do not recommend but I had no choice when Iwas starting out, but to use it. All it is, is a pipewelded to a flat bar bolted to the chassis in which theaxle could spin.This needs constant greeseing, andWILL WEAR AWAY, through time. If the engine

you have will drive you over 30mph DO NOT usethis method. Both the axle and the pipe will wearaway. Even if a brass sleeve were slotted into this

pipe, first, it still would wear. It is just held onto theaxle by split pins and washers which nessitates the drilling of a hole in the axle !!.(veryworrying!!). This is to allow easy removal for greesing. The pipe should be at least 150-200mm long.

Stub Axles + King Pins.

The following drawings are self explanatory, and should be easy to follow.


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One point to note is the Camber and Castor angles stated, 5 and 25 degrees respectively.

The Camber angle is to aid turning corners, especially with the fixed rear axle. TheCastor angle is used to turn and keep the wheels pointing forward whenever the steeringwheel is let go!. It to also aids turning corners. The angles are to be kept as close to thisas possible, different angles are used for different surfaces, tarmac, concrete. The anglesstated are an average of all, so this kart will be as effective on most surfaces, grass, clay,etc.

Brass caps/bushings should be fashioned and pressed/hammered into the 30 X 60mmmild steel pipe, nylon can also be used, however brass will take more punishment. Themild steel pipe (30X60mm) is welded to the cross member from the chassis, You willhave to be PATIENT here in getting the correct angles. You will have to spot the pipe

section onto the member, then adjust the angles so that is makes 5degrees (the top of thepipe pointing inwards) and 25 degrees (the top of the pipe pointing towards the backwheels). As in the diagram. The main thing is to try and have the angles the same for

both sides. YOU WILL NOT GET IT RIGHT FIRST TIME SO TRY AND TRYAGAIN, PATIENTLY.

Also to be fashioned is the U bracket, on to which is welded the stub axle. It caneither be bent into shape from a 40X6mm flat mild steel bar, or as I done, you can cut asection of 2" channel iron, in such case the measurements may have to be altered. Itsaved an awful lot of hammering, heating and bending of that 6mm flat bar.

The King Pins are M10mm HTS 8.8 (high tensile steel) bolts, with a lock nut andwasher, these run through the U bracket and the hub pivot bushes which are pressed intothe chassis pivots.

Make sure you Weld all items exceptionally well, weld a ring once, grind down, clearoff the slag, and make another pass. Make sure you get all the way around, and thatthere are no pits, holes, cracks, etc.

This next drawing shows the steering arm, it's angles, sizes etc.


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The angle of 108 degrees is part of the "Ackerman angle". with the wheels pointingforward these steering arm angles should come meet and come together in the middle ofthe rear axle. This principle causes the wheels to be able to turn independent angles,causing the inside wheel to take a sharper angle. This however is all worked out inadvance for you.

Another point to note, is the mounting of the front wheels onto the stub axles. The way Ihave it on my kart at the moment is very crude. All I have done is secured thewheelbarrow hub with it's brass bushing between split pins and washers on the stubaxle. I am currently thinking of a better method as the speed goes up and over 50mphthe front wheels take on a small wobble!!. However if you have access to a lathe and theappropriate materials you can turn out stub axles and hubs. Here are the plans anywaysfor those of you who have a lathe.


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As you can see from the drawing, it takes a bit of lathe work, including the threading ofthe last 20mm to take a M16 HTS nut and washer. Also interference fits must be takeninto account when pressing the bearings into the hub. But when it is constructed it will

be the perfect set-up, and will last forever. Appropriate bearings must be obtained fromyour local engineering store to fit the 21mm part of the axle, and to fit the internal part

of the hub. The nut I recommend is a M16 castle finish nut, requiring a pin to be slottedthrough the axle. This will keep the nut stationary for good!. Again the externaldiameter of the hub and the hole alignment will all depend on the size of the wheel.

The Brakes and Sprocket mountings.This is now the time to become well aquainted with your local motorcyclesupplier/repair agent as a lot of second hand parts from motorbikes will be needed, suchas the brake, low cost quality sprockets and chains.

I will talk fistly about the Brakes of this kart.Basically there are two types of brakes 1: Drum Brakes and 2: Disc Brakes. The latter

been the most effective, nevertheless when the Drum brake is setup correctly is can bebetter than a poor setup of Disc brakes. The brakes that you will use on your kart willdepend on the amount of money you are willing to spend. I' m using Drum brakes onmy kart at the moment, they only cost me 10 from the rear brake of a honda 90,compared to around 40-50 for a front disc and calliper of a motorbike. And if you everdrove my kart in the rain you will realise how gentle you have to be on the drum brake

pedal, otherwise the whole rear will lock up and you will spin off doing 180's. In myopinion drums are easier and much cheaper, nevertheless I have provided plans for bothoptions, so well in good if you happen to come across a disc and calliper of a motorbike.

Drum Brakes.

This type of braking method has disadvantages however, and the use of alathe is almost a must, even if is it to get it done in a local engineering firm, it's only asmall bit to be turned out as you will see.Firstly you will need the rear brake from amotorbike, preferably 75cc or higher. The front brake is useless as it has no

mounting/securing arm to stop the brake plate from

rotating. Cut away all the spokes and remove thesprocket and cush drive, then bolt a plate to thisside. (right side on the picture to the left) When the

brake is finally setup and all the diameters allmatched up all on has to do is to spot this plate tothe axle. Refer to the picture below of the

positioning of the brake. Only weld up whenEVERYTHING is all finished, the shoes working

correctly, as when this steel plate is spot welded to the axle one must grind off the weldto remove the brake. A bit crude I must admit, but if you want to go to the bother ofmaking a keyway in the axle and then tapping the fixing plate to the axle, go ahead.


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The bigger the bike it comes from the better as the internal diameter will be bigger, andwill fit your axle better. When you obtain the drum and shoes, concentrate firstly on theopen drum. Take out the bearing if there is anyone. Measure the internal diameter. Ifthis measurement is smaller than your axle then unfortunately the difference must betaken from the drum on a Lathe. But the internal diameter may be too big!, in this case

you will have to hunt down a pipe to use as bushing, you can weld to, which will takeup the difference between the axle and the drum. If it is too small you will need a lathe.But not all Lathes have an internal cutting tool, and a drill bit of 30mm - I have neverseen. In this case, your axle will need a bit of lathe work ie.- taking down. ( If this is toomuch Lathe work to handle, then stick with the straight forward Disc Brake)

On the left side of this picture (to the left) you can see the piece to whichthe shoes are attached, and this is stationary with respect to the live axleand drum(to the right of the picture).

See the picture below, the positioning of the brake, and the possibility of taking the axledown to the required diameter to that point.

The drum is positioned between the wheel and the frame of the chassis on the left hand

side, with the Shoes part of the Brake (brake plate) on the chassis side.(this is to provideeasy access to secure the shoes to the chassis via the fixing arm) However depending onyour ability and adventureness you could decide to put the whole brake setup inside thechassis frame. Now moving onto the shoes part of the brake (brake plate), this is around cast piece which the brake pads/shoes are fixed to, and the shoes can be movedoutwards by an operating lever on the outside of this piece, which can be simplyconnected to a brake cable. This brake plate is the most difficult piece of the brakesystem. It is usually this part which it's internal diameter is too small to fit the axle. Thisis where undoubtbly you WILL have to increase the diameter of the shoes piece on alathe. Depending on the type of Drum you have you may only be able to increase theinternal diameter a few mill, anymore and you will weaken the piece. In this case you

will have to take the axle down to meet the slightly bigger internal diameter of the brakeplate. You will understand this much better when you have the brake infront of you. If


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you can spare 3-4mm then a brass/nylon bushing could be inserted, so that the brakeplate can rotate smoothly on the axle. If not then the brake plate and the axle must bethouroughly greesed, with an application of oil every 1-2 weeks.

As you can also see in the picture, that the brake plate that the shoes are mounted to is

kept stationary via a fixing arm which is bolted to the chasssis. The Drum which is fixedto the rotating axle spins with respect to the brake plate. Make sure this fixing arm isrigidly fixed with high tensile bolts to the chassis, as all the torsional load of stoppingthe kart is transferred through this member to the chassis. The brake operating lever youcan see in the picture can be simply operated from a cable comming from the brake

pedal. Simple!. Any problems, just e-mail me. ( )

Disc Brakes

Disc brakes have a few more advantages over the drum ie.- more effective+ straight forward. However the Disc plate MUST be mounted perfectly on the axle -which means making a hub to mount it, preferably made on a lathe, the Disc can nothave any wobbles AT ALL!, and it also must be concentric on the axle. Aswell as allthis the calliper must be mounted rigidly to the axle. And as I said earlier all this costmoney especially the disc and calliper. In saying this a nice hydraulic unit of a scooteretc. would be very nice indeed. I would have used this method only I didn't have anydisc brake available cheaply to me.

When one thinks about a hydraulic brake

they usually think about pipes and hydraulicfluid. Well that need not be the case. Quitesimply all one has to do is get the whole frontunit from a scooter/motorbike, brake leverand all. Then all one has to do is to mount the

brake lever and fluid reservoir onto a chassisrunner close to the rear axle. Then all you must do is to remove the brake lever, andfashion a small piece of alminium/ mild steel to fit in it's place. Exactly as it is in the

picture below. The two holes is to provide differentleverage pressures. A cable can then be run from thislever to the brake pedal at the front of the kart. That

is the actuating process finished with. All that's left isto mount the Disc to the rear axle as well as thecallipers.


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Next you should go onto mounting the plain Disc to the rear axle in the correct position.The positioning of the calliper can be adjusted to suit the Disc. To mount the Discaccurately and securely to the axle necessitates a mounting, something as in the picture

below.

This particular unit is made up of two partswelded togethor, one been a circular steelplate made from 8mm thick plate, and theother been a section of bar 45mm in diameterwith either a 25 or 30mm internal bore to fitthe axle aswell as a 6x3mm keyway in both

the axle and the mounting hub . When this piece is made a slit of 3-4mm is made withan angle grinder etc. Then an 8mm HTS bolt is used to pinch/tighten the boss to the axleto prevent side to side movement on the axle. A grubscrew can also be used to serve this

purpose aswell. The two pieces are then welded togethor on the axle, keepingeverything concentric. Also the correct positions must be made for the Disc it's self, so

it too is concentric. I would mark the positons for the holes to bolt the Disc to themounting hub in the lathe. Also I'd advise you to put the whole unit in the chuck of thelathe to check that the Disc is mounted concentrically aswell as square to the axle.When this is checked and contains no flaws, then you can mount it on the axle. Then

place the calliper in place and weld if necessary, an extra runner to the chassis. Whenthis is securely in place test the brake by spinning the rear wheels in the air, making surethere is no touching of the calliper and Disc (within a certin limit). Unlike the Sprocketthe Disc must be perfectly square to the axle.

Also when removing the calliper from a motorbike try and prevent the callipers fromfalling out, otherwise you will have to drain the hydraulic fluid from system.

Now moving onto the-

Sprocket for the rear axle.The sprocket used for this type of kart, should be one from a motorbike. Bycycle chainscome off all the time. The axle diameter will either be 25mm or 30mm.

Method 1. The most straight forward method to make a sprocket carrier, is to turnout a steel plate as shown in the lathe, with and internal diameter of either 25mm/30mm,with a "low interference fit". Quite simply this plate can be spotted neatly to the rearaxle. This will also allow you a great deal of freedom when aligning the chain, as thiswelding is the very last thing to be done prior to driving.


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Method 2.This morecomplicatedmethod ofconstructing a"sprocketcarrier" is a bitadvanced forsome people

with limited resources, like myself. It involves constructing in two seperate halves, thenputting both halves on the axle and then to weld them togethor. A pinch bolt is used tokeep the sprocket carrier from moving from side to side on the keyway. Both thekeyway and the pinch sequring method must be used in this method.


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Method 3. The only way I can suggest to peoplewithout "lathe access" is to get a steel pipe (internal dia to suit the axle), then to get an6/8mm steel plate, drill out the center (or use a cutting torch) to fit snugly onto the steel

pipe. Spot the plate to the pipe, spot the pipe to the axle, rotate the axle somehow, andhammer the plate to the appropiate side untill it wobbles no more!. Weld the plate fully

to the pipe. Mark on the plate the diameter of the four holes from the center of thesprocket. Now spin the axle again. Hold a sharp point to the plate to where the point you

just marked and with the axle spinning it should make a uniform circle. Drill theappropiate holes on this circle. This is to keep the sprocket Concentric to the axle. Bolt

up andhopefully! itshould besatisfactorlyenough!.

Steering

Steering Column.This first Diagram shows the main Steering Column, with all it's supports.

The Top Column Support is either a brass bushing pressed into a mild steel pipe, orsimply a suitable sized steel pipe. The steering column will turn inside this and is

prevented from moving by two split pins and washers. The reason the brass bushing isinside a mild steel pipe is to facilitate it's fixing to the strut, by welding. The other endof this strut can either be welded or bolted to the chassis, however this can only be donewith a person sitting in the kart and to adjust the height etc. and then finally to weld it in

position.

The bottom Bushing/pivot can also either be bolted or more simply welded to thechassis, all of which should be done with a person/ driver sitting in the kart. A vise-grips or a clamp can be used to keep everything in the correct position before welding.


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The bottom pivot can either be turned out on a lathe, or an ordinary pipe, with a suitablewasher welded on.

However it is my recommendation to leave the installation of the Steering columnand Drop Arm until the near end of the kart's completion. This can then be adjusted tofit everything else i.e.. drop arm, seating position, pedals.

Track Rods.

The installation and construction of these is fairly simple. Basically the rods are16/20mm mild steel tubing, cut to the given length, with nuts (M10) welded to each endof each pipe. These nuts will receive "rose end bearings", which as well as providing asuitable fixing to the Steering Arms as well as providing a certain amount ofadjustment. In the middle the Drop Arm will simply bolt to these "rose bearings". At theends where they meet the "hub steering arm" they simply bolt together.
http://www.kartbuilding.net/Freeplans/faxle.htmhttp://www.kartbuilding.net/Freeplans/faxle.htmhttp://www.kartbuilding.net/Freeplans/faxle.htm


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Once the track rods are in place the steering wheel and drop arm can be installedaccordingly

Engine Mounting.

There are a few ways of mounting the engine to the chassis. The main function of thecradle/mounting is to prevent the engine from Rocking (if it was loosely secured). To

prevent the chain from loosing it's tension due to engine movement, and to prevent theengine from coming clean off the kart on a rough road. Therefore all welding as on therest of the kart must be up to scratch. All bolts again as with the rest of the kart must be

High Tensile (8.8). My hope is to be able to take the engine off the kart and to easilybolt it back on the kart at any stage, only requiring the removal of 4 bolts, cables andchain. And for the future provide a universal mounting/ Base plate for any betterengines one may come across, and all they'll need to be mounted to the engine is a

personal Cradle.

The way I have mounted my engine (a motorbike engine) to my chassis(as you might be able to see in the link to "pictures of my kart" on my main home page)is quite simple. If you are planning of having any other sort of engine skip on down the

page to "GENERAL PURPOSE ENGINES" It's construction is totally out of light 1.5"(75mm) angle iron. The Base plate is constructed out of this angle iron as well as the

engine Cradle. The main reason I used angle iron is because, firstly it's fairly strong,secondly I had a load of the stuff from an old roof rack of a van, and thirdly the engine


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can slide along this channel to adjust the chain etc, preventing sideways movement ofthe engine, thus upsetting the chain alignment, and only requiring fixing bolts.

Base plate

This first diagram is for the "Base plate". This is the item which will be welded to thechassis, in the general location of where the engine will be fixed. it is made up out of

four lengths of angle iron, in a rectangular shape as shown.

Do not weld this to the chassis yet, until the engine is in it's cradle. Sizes may varydepending on size of engine, bulky etc. This is for a typical 100cc engine. The Methodand Construction remains the very same.

Cradle


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This next diagram shows the apparatus which will be bolted to the engine, which in turnwill be bolted to the Base plate. The hope is to be able to unbolt the engine totally fromthe kart with nothing extra bolted to it, and even to refit it back in a motorbike!. This isin case any overhauling, opening up of the engine is required.

There is no exact measurements that can be quoted, the only measurement been thewidth of the Cradle to make sure it will fit the Base plate. All the runners, struts etc. areall firstly bolted to the engine and then welded to the Cradle. Making life a bit easier.There is a photo of how my engine is secured to it's cradle as a starting point.Depending on the size of the engine you may want three or even four supports. Foranything below 125's I'd say it's all right with two, the front and the back supports.Again use 8mm (or 10mm if it will fit) threaded bar (high tensile) to bolt the engine tothe struts, as in the diagram below.

Again I'd say to fashion it out of 75mm mild steel angle iron. Again to fit the Base platenicely.


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Bolting them together.

When the two items (base plate and cradle) are finished, and the engine in the cradle,

put them together sitting on the chassis. Find the correct location for the chainalignment etc. then weld the Base plate to the chassis. Now fit the engine + cradle ontothe base plate. Obtain the correct length of chain required. Fit the chain. Mark and drillfour 8mm holes going right through both the base plate and the cradle. Remove theengine and make the hole into an 8mm slot either by using a cutting torch or by drillinga load of holes close together. this is to give a certain amount of chain adjustment. Re fitthe engine, tighten up the tensioning bolt until the chain is at the correct tension, slotthrough the 8mm bolts and tighten everything up. And there you have it!.

Any Further Questionsjust E-mail me.

GENERAL PURPOSE ENGINES

Normal generator, lawnmower, chainsaw etc. engines can be mounted more easily. Justrequiring a Base plate as all these engines will have 4 mounting holes conveniently

placed on their underside. Follow this easy diagram. All that has to be done is for thebase plate to be welded to the chassis with four 8mm slots in the correct positions. It's aseasy as that. There's no need to make things more complicated than they have to be. SeeDiagram below. You can clearly see from the photo below the fixing holes with can beused to mount the engine with ease. For similar idea of the channel see the bottomdiagram for engine mounting of a plain engine.
mailto:[email protected]:[email protected]:[email protected]:[email protected]


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And here's how to do it for a typical engine like the one in the above photo.


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Floor PanIt is my suggestion that the floor pan now be installed onto the kart. I recommend using

"Ribbed aluminium Checker Board" (3-4mm) for the floor pan. If not 1mm mild steelsheeting will have to be used. This can easily be shaped with a "jig saw" with a steelcutting blade. The checker board can then be shaped to fit the curve nicely. If you try touse an angle grinder you WILL fail!!!. you can however if you have a few cutting disksto spare you can clean of the burr. Once the required shape is cut out, it is just a case offixing it to the chassis.

You can just bolt the whole pan to the chassis by drilling a hole through thechassis and the pan, and fixing it on with a 5mm bolt and rubber grommet/washer.

However this severely weakens the chassis, and a better option would be to weld pieces/tags of metal to the chassis and to bolt the pan to these tags instead. Only a few areneeded. It depends on the strength of the tags.

Mount the floor pan on top of the chassis. Also it would be an idea to keep some of the"aluminium Checker Board" for later, as it will be useful for the pedal floor pad, forone's feet to rest on.


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Seats

This is a relatively easy part. Although the seat is a fairly important part of the kart.what you need in a Kart seat is plenty of "side support", as well as a nice snug fit, soyou will be able to steer the kart, instead of using the steering wheel as a rigid support.

The best seat around is of course a plastic seat out of a proper racing kart, even an oldsecond-hand one. You might pick one of these up for half nothing in a karting

place/circuit.

But if your like myself, you can always improvise. The next best thing to a racingseat is an ordinary plastic seat, with support installed either side of the seat. Take anordinary plastic seat, bend the four legs out flat. Leave around 50mm sticking out fromunder the seat. Now either bolt or easier yet weld 20mm (3/4") lengths of pipe at eitherside of the seat, running from the top back of the chair to the legs bent out at the front

bottom. The top of the pipe can be bolted to the plastic seat.

Then as in the photo, put some pipe insulation around the side supports, and securewith tape. Now all you have to do is to put the seat on the frame, sit in the seat. Adjustthe seat, to the side, forward/ backwards to suit the pedals and steering wheel. Whenyou are happy with the position of the seat, drill holes through the flattened out legs andfloor pan, and bolt up with 6mm bolts and locknuts.

A Modified Ordinary Plastic Seat. A Racing Kart Seat.


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The modifications needed to be made to the normal Plastic seat, for extracornering support. All can be made from 20mm (3/4") piping, or anything at all. Bolt orweld together.

Pedales.

Lo siguiente que debe coincidir es de los pedales. Una vez ms no hay necesidad decomplicar las cosas. Los pedales son la parte ms fcil del kart. Son Nada de lujo, perosi se quera se poda moda fuera de cromo plateado 15mm OD tubo. Sin embargo, 10 / 8mm de varilla de acero ser suficiente. Una vez ms dependiendo de la tcnica de

mentalidad que se puede o no puede molestar a la moda buje de bronce para cada pedal.He hecho sin ellos. Dependiendo de dnde se coloca el asiento que usted lo desea,


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puede ajustar la posicin de los pedales a lo largo del eje, o poner todo el eje del pedalms hacia usted. El diagrama es bastante fcil de seguir, es slo una cuestin de dndecolocar el pedal del eje en el chasis. Puede punta de soldadura del eje al chasis o puedecerrojo al chasis. El lugar puede ser fcilmente motivo de cortar con una sierra.

Los pedales se llevan a cabo en el eje por medio de pernos y arandelas de saliva, lo quepermite una fcil extraccin para engrasar etc Usted puede si usted tiene acceso a untorno para hacer un mejor trabajo de los pedales, hacen bujes. Si usted va a hacer delatn / bujes de nylon para los pedales que giran en torno, hay dos medidas dealteraciones que deben tenerse en consideracin. La tubera que iba a girar sobre el ejedel pedal, es de dimetro exterior se incrementar en 8 mm, para dejar espacio para elcasquillo para caber dentro de esta pequea longitud de la tubera. Tener acceso a untorno, puede hacer sus propias medidas para adaptarse a sus materiales, etc

La tendencia en la barra en forma de L para el pedal, se va a soldar a un casquillo / tubopara girar libremente sobre el pedal del eje. Recuerde que usted no puede soldar al

latn!, Usted tendr que hacer una chaqueta para la soldadura de metal fuera de la barraen forma de L que, para que los pedales, si desea utilizar bujes de bronce.

Usted ver que hay dos agujeros taladrados en los pedales. Mantenga estos agujeros tanpequeos como sea posible, dimetro adecuado para satisfacer el cable. La de arriba espara un muelle de retorno para el pedal en s. El otro extremo de la primavera se puedefijar a cualquier punto fijo en el chasis. El agujero de la parte inferior es para el cable.

Tambin hay pequeas paradas Pedal a realizar. Estas pueden ser fcilmente hechas devara de luz 6mm. Son bsicamente en la forma y las medidas se dan en la mitadizquierda del diagrama abajo. Estos sern ms fcil de soldar al pedal del eje, por unasoldadura pequea, que puede ser roto con un poco de la fuerza si es necesario.

En la parte inferior del diagrama se puede ver el diseo de los pedales, la nicaincgnita es que la medicin de la posicin de los pedales a lo largo del eje del pedal,ste ser determinado por sentado en el kart, y ajustar para adaptarlos a las necesidadesindividuales . En esta etapa es una de las ltimas, la posicin de los pedales no debenverse afectados por cualquier otra cosa.


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De cambio de marcha

Hay una forma fcil y hay un camino difcil. La forma ms fcil es simplemente unalongitud de soldadura de acero redondo de 13 mm de espesor para el blanco de los piesde edad operado selector de velocidades, y tienen por lo que todo est cerca. Todo loque hay que hacer es conseguir una pieza circular de madera / aluminio y para los

pernos a la parte superior de la nueva palanca de cambio de cambio. Y eso es todo loque hay que de esa manera.

Sin embargo, si usted tiene una caja de cambios sensibles, es decir que el cambio demarcha es demasiado delicada luego una serie de barras se debe utilizar para desacelerar


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la rotacin del eje del selector de marchas. Es ms fcil de seguir en el diagrama.Tambin otra ventaja es que usted puede tener la palanca de cambios muy cerca de lamano de los artes de positiva y rpida evolucin. Otra cosa es tratar de mantener lamarcha real de cambio de brazo operativo lo ms pequeo posible de longitud.Demasiado largo y que dar a cambio de velocidades terribles. Un buen corto brazo

operativo rechoncho y usted se sentir artes sido seleccionados de manera ms positivay sin problemas. Puedes experimentar con D1 y D2. Recuerde hacer D1 yacontinuacin, tendr que mover el brazo operativo ms para conseguir que vaya enmarcha. Pero si es demasiado corto entonces el cambio de marchas ser demasiadodelicado. Tambin puede cambiar D2 tambin, sin embargo, afecta son a la inversa de laque, con D1. es decir,. lo que ms har cambiar de marcha demasiado delicado,demasiado rpido para su comodidad. Los tamaos dados son una aproximacin muy

buena para todos los motores tpicos y cajas de cambio.

PARACHOQUES Como podrn ver en las fotos de mi kart, no memolest con paragolpes. Sobre todo debido a mi falta de tiempo y, por supuesto,

Doblador de tubos, etc Pero para nadie es Kart Estoy seguro de que es una obligacin,aunque fuera slo para fines estticos. No es mucho lo que puedo decir, que no se ha

dicho acerca de flexin en la seccin "Chasis". Mi nico consejo es:

Si usted no tiene o tiene acceso a un doblador de tubos Olvdalo!.

Pero aqu estn las mediciones de todos modos para aquellos que tienen la suerte de

tener acceso a un doblador de tubera. Todas las tuberas utilizados deben ser al menos25 mm de espesor, especialmente si su uso de tubos de pared delgada. Para tubera de


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pared gruesa, alrededor de 2-3mm te sugiero calentar el tubo al rojo antes de tratar dedoblarla.

Una buena opcin sera utilizar Chrome Bumpers plateado ya que es lo que tienen enlos karts de carreras de lujo. Se vera una buena caracterstica, sobre todo si los pedales

tambin cromado.

Y eso es final. Completa Todo lo que figura en los ttulos Se encuentran en losvnculos,. Espere A que la nueva seccin en mi principal del Home Page, Qu tendrms fcil Construir Karts, Utilizando herramientas y materiales bsicos del hogar. Asi

que se empezara un recoger.

Hay Diagramas Detallados de construccin, componentes, etc Contenida Dentro decada uno de los principales captulos anteriores. Cada uno con sus propios vnculos conotros sectores pertinentes.

Mucha suerte a todos ustedes van Que a esta tarea Emprender. Espero que funcione ACabo A su satisfaccin. No es tan complicado como todas las miradas. PARAAQUELLOS DE USTEDES Maybye's, - Mantener abastecerse de las partes, ruedas,etc, hasta que se Propuso en este proyecto.

Un panorama de la Kart


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Juego Completo de Libre Kart Racing Planes