Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Turtle Shell Racer – Low Power Edition

by Skimbal, published

Turtle Shell Racer – Low Power Edition by Skimbal Aug 6, 2011
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16939Views 5254Downloads Found in R/C Vehicles


I think we can all agree, life would become much more interesting if I launched a blue shell at you every once and a while.

But it’s no fun if I’m the only one with a shell to launch. Therefore…

Blue Shells for Everybody!!!

All you have to do is print it out and assemble!

This is the Low Power Edition of the Turtle Shell Racer and it is Non-Functional as Designed. The Cheep RC Car can’t provide enough power to get the much heavier printed body moving. I am aware of this flaw, and it is the reason I designed the much more complex High Power Edition of the Turtle Shell Racer.

My hope is that this non-functional design it will inspire someone with circuit bending experience to developed a way to increase the power of the coming from the Cheep RC Car Electronics. A well documented hack would make this into a fully functional design.

This design has fewer printed parts and is much easier to build than its High Power brother. Most of its moving components are taken from the donor rc car.


Full assembly instructions and parts list are avalable in "Turtle Shell Racer - LP v1.pdf"

Video 1: Cheep RC Car teardown, Removing the steering Module

Video 2: Cheep RC Car teardown, Removing the Drive Module and Control Board

Video 3: Installing the Wheels in the Car

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Any online store to buy the car?

Could you post non-racer files for the bottom half without the holes?

What is the Make and model of the R/C car? I want to hunt one down?

When printed, approximately how much does the shell weigh?

its amazing have u consider putting them in the market and sell them kids will go crazy.they will be sold out i n no time .i will buy for sure.

Ok so after thoroughly testing the dc motor (read making my fellow hackerspace members test the dc motor) I (they) have come to the conclusion that the dc motors ( at least the rear one)just have to go. They probably cost about 30 cents apiece anyway. The steering should not be a problem though. You do need to take a small chunk out of the plastic for the hinges to clear the bottom of the shell. I think that was what was keeping the car from turning. I am still looking into a way to reuse the original radio and remote control though so all may not be lost. In any case this design won't be of much use though because the tiny motor in this thing will burn out before it will move the car. The motor doesn't dissipate heat so heatsinking the motor wont help. The current plan is to develop a cheap h bridge to control a bigger motor and use the original motor leads as input to that h bridge somehow (haven't figured it out yet) This means that as of now the from part of this shell is still useful but the back cannot be used as is. Hopefully the high power edition back will fit the low power edition front or I'm going to be doing some learning in sketchup...

Ok so to increase power you just need to cut the trace/wire supply line to the h bridge then put more batteries in line with that. I'll post a video when I get the whole thing together and can ensure it doesn't burn the motor out after 2 days...

Printed most of it already just waiting on the instructions for taking apart the truck for this particular build.

Is there supposed to be a FrontB stl?

Whoops... Missed that one. Its there now.

A quick look on youtube and it seems like you can just run it with more batteries...

This is soo awesome!! =-O