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Chassis for autonomous RC-Car

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Chassis for autonomous RC-Car

Old 01-15-2019, 04:38 AM
  #1  
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Default Chassis for autonomous RC-Car

Hello all,

I am part of a team which is developing an autonomous rc-car. I am currently searching for a chassis we could use. But I have little experience and maybe you can help me and point me in the right direction .

Our car is similar to this one:
RacecarJ : racecarj.com

The chassis used in this car is the Traxxas Slash. The problem with this one is, that it has to much tolerance in the wheels,steering and the driving-components(the gears). In short, too much jiggling. What I am searching is a chassis with a higher build-quality and doesn't have these issues.

This are the Requirements the chassis should have:
  • Low tolerance in all the parts
  • A possibility to mount an additional plane for the hardware
  • It must support the additional weight of the electronics: in total 3 to 5 kg
  • Scale should be 1/8 or 1/10
I have something like this in mind :
rcgenesis.net/110

But it should be a on-road chassis. Do you have an idea where I could get something like this?
Or should I consider building a custom chassis? If so, can you tell me how I can do something like this?

Thanks for your help in advance and have a nice day!

P.S.: I am not allowed to post urls yet, but you should be able to find the sites with google.
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Old 01-15-2019, 10:58 AM
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It might help to know some more information about your requirements.

You mentioned wanting less play in the components. Why is that? What tasks will this car need to do? Will you be trying to move very slowly and precisely? Racing?

What surface will you be running on?

An on-road car will be designed to run at quite low ride heights with its typical weight. You can buy stiffer springs and add preload but by adding 100%-500% extra weight in electronics this could be difficult. You may do better by modifying an off road vehicle as you'll have more suspension travel to work with, although you'd still need to compensate for the additional weight.

Whether you choose onroad or offroad, I think a 1/8 scale electric chassis would be best. Start by taking a look here:
https://www.amainhobbies.com/1-8-sca...s-trucks/c7620
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Old 01-15-2019, 02:47 PM
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Tekno RC's have some very tight steering assembly (low tolerance).

Good luck!!!
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Old 01-16-2019, 11:42 PM
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I think you might want a 1/8th scale gt onroad car.
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Old 01-17-2019, 09:05 AM
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The larger the scale you go, in general, the better the build components will be.. I mention generally as just to support the size and weight of the larger cars, the components and build quality is typically better than the smaller scale options. Likely anything from a 1/8 to a 1/5 scale will do exactly what you need. However, the scale also increases the pricing.
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Old 01-17-2019, 07:04 PM
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Also working on a AV RC car. Check out these resources:

The Official Home of F1/10

https://github.com/autorope/donkeycar

I went with a Yokomo YZ4-SF but just have it running up sans AV. Feel free to ping me.
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Old 01-19-2019, 10:25 AM
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Hello,
thank you for your answers. They have been very helpful and good pointers in the right direction .

It might help to know some more information about your requirements.
You are right. I did forget to discribe what the car should be capable of.

Its field of operation will be normal traffic situations,like crossings,red lights, parking. That means it must be able to drive really slow. Especially when its trying to park. And for that it must be able to detect when its moving slowly. So every part which creates unwanted movements will complicate the detection.
It will drive on plane ground.

I will look for 1:8 Chassis, but the Yokomo YZ4-SF also looks promising.

Have a nice weekend
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Old 01-21-2019, 12:45 PM
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Is this for a Square One Mini IVD Car? You should be fine with the Slash. Plenty of room under the body. You can tighten up the steering and suspension components with RPM aftermarket parts. The turn buckles are tight already. You can eliminate the servo saver to help tighten up the steering.
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