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Fri3d RC Car

This is a project to build a 3D printed remote controlled car. The car body is based on the Cybertruck from Tesla. The car is designed to be 3D printed and to be controlled by a remote control.

As this is not a beginner project, it is recommended to have some experience with 3D printing and remote controlled cars. The project is an open-source project and can be used by anyone. We originally designed this project for Fri3d Camp to build 5 cars with children and play with them during the camp.

Cybertruck

How to start?

There is a combination of printed parts and off the shelf parts. Both off the shelf parts and printed parts are listed in the Bill of Material. Off the shelf parts can be bought from various online stores such as the one proposed in the Link column. The printed parts are available in the stl directory. The original design files are available in the shapr directory. The printed parts can be printed on a printer with a maximum size of 25cm x 25cm x 25cm. Most parts can be printed with PLA, but some parts are to be printed with TPU (to absorb impact).

The car is designed with durability in mind. You will notice we do not print the parts that need to be very strong such as the differentials and dog bones. You should buy them online. It makes the car a bit more expensive to build, but it will last much longer. For more durability, some parts are to be printed in TPU (flexible filament). i.e.: the bumper, the caster claws, and the top and bottom of the wings,... That way, they can absorb the impact of a crash without breaking.

Assembly

Once you have the printed the parts on your printer and bought some of the parts online, you can start to assemble the car as described in the following documents:

  1. Part 1 - Body
  2. Part 2 - Front & Back
  3. Part 3 - Final

Happy assembling and Good Luck!

Bill of Material

Off the shelf parts

Check Description # Geert Fre Cost Comment Link
Motor + ESC 1 1 + 3 40€ Test Pulsar B-20, B-40 aliexpress.com
Motor Mount 1 6 3€ conrad.be
Pinion 1 5+5+7 5€ 12T, 15T, 20T absima.be
Battery 1 4 6 20€ 5200mAh, 2S, 80C amazon.de
Servo 1 3 15€ aliexpress.com
Receiver + Transmitter 1 3 25€ conrad.be
Differential 2 12 15€ conrad.be
Differential - Drive shaft Connector 2 12 5€ conrad.be
Dog bone 4 8 12 15€ needs thread lock! amazon.de
Bearing - 10X15X4 8 40 5€ aliexpress.com
Bearing - 5X10X4 8 40 5€ aliexpress.com
Hot glue Y Y -
CA glue Y Y -
Duct tape Y Y -
Screws M3 1 3 3 8€ 440 pieces Amazon.de
Screws M4 (100mm or 70mm) 4 20 20 2€ Bottom wing - plate connection
Wheel Fastener 4 20 2€ aliexpress.nl
Threaded inserts 8 Y Y - Diff cover ruthex.de
Rubber band 4 Y Y - Shock

Printed parts

Depending on the print settings, you will need around 2KG of Filament to print all the parts. Instead of PLA, you can also use PETG or ABS.

Check Description Material # Geert Fre Comment
Receiver box PLA 1 5 Will use OOTB
Servo - steering rod 1 5
Wheel - tire TPU-A95 4 12+4 8 Last set of 4 are from test vehicle
Wheel - rim PLA 4 12+4 8 Last set of 4 are from test vehicle
Wheel - hex PLA 4 30 Still need to make 2mmx1cm hex pins
Plate - center PLA 1 2+4 1 3 cannot handle long M4 x 100mm, 2 have a minor defect on top
Plate - front PLA 1 6 1
Plate - rear PLA 1 6 1
Plate - Diff - top PLA 2 12 2 Print with 100% fill rate
Plate - battery - holder PLA 1 5
Wing - bottom PLA or TPU-A98 4 24 8 Use TPU to absorb impact
Wing - top PLA or TPU-A98 4 24+20 8 Use TPU to absorb impact
Caster - claw TPU-A98 4 24+20 4 Use TPU to absorb impact
Caster - turning PLA 2 12 2
Caster - fixed PLA 2 15 2
Shock - slider PLA 8 56 8
Shock - cap PLA 8 56 8
Steer - turn-left PLA 1 6 6
Steer - turn-right PLA 1 6 6
Steer - connector PLA or TPU-A95 1 6 6 TPU acts as servo saver
Steer - rings PLA 2 12
Steer - top PLA 1 6 6
Steer - rod - 67mm PLA or TPU-A95 2 10 12 TPU acts as servo saver
Driveshaft - bearing PLA 1 6
Driveshaft - gear 48T PLA 1 Print with 100% fill rate
Driveshaft - gear 60T PLA 1 6 Print with 100% fill rate
Driveshaft - axle PLA or ABS 1 6 Print with 100% fill rate
Bumper TPU-A95 1 6 Use TPU to absorb impact
Cybertruck - front PLA 1 5
Cybertruck - front - holder PLA 1 5
Cybertruck - rear PLA 1 5
Cybertruck - rear - holder PLA 1 5
Cybertruck - decal PLA 1 5
Cybertruck - logo PLA 1 5