3 Wheels RC Platform Build Guide
This is the build guide for the 3 Wheel RC platform.
You will need to also check the build guide for the body of your choice. Body Style 1 or Body Style 2
Join our Facebook group #
Best way to get help is to join our Facebook Group where you can ask your questions and share your realizations.
Bill of Materials #
The BOM is available here
Versions #
A new version was released on June the 5th 2022. This version include a belt tensioner which resolve the rear gear skipping issue and a fixed front suspension which behaves better. If you downloaded the 3 Wheels before June 5th 2022, please download the new files here. Read the changes file in the documentation folder to know which files have changed.
A huge thank you to Trevor Innes who made this improved version possible.
Fixes #
In this sections, will be listed the available fixes that are not included in the zip archives you may have downloaded.
There are no current fixes for this project.
Printer Calibration #
It is imperative that your printer is well calibrated. The bearing should be a press fit and removed just by pushing on it. It should not drop out or require undue force to install in the calibration part. You should calibrate your printer for every roll of filament, even for the same brand and color. If you need help to calibrate your printer see: My Calibration Process using PrusaSlicer. You can also check this great resource: “Teaching Tech 3D Printer Calibration”
Printed parts required in this step
- _calibration.stl
Printing notes #
Refer to the 3 Wheels RC Printing Notes for suggestions on how to print parts.
Loctite #
All square nuts are susceptible to come undone while driving. To prevent this from happening you may wish to use Loctite.
Front section #
Ball joints #
Printed parts required in this step
- c_2x steering link 68mm
- c_Wishbone Lower Left MC
- c_Wishbone Lower Right MC
- c_Wishbone Upper Left
- c_Wishbone Upper Right
You can use the Rod Ends that came with the ball joint and 3mm threaded rod and make your own steering links. This way you will be able to adjust them as you wish and they will interfere less with the shock absorber’s spring.
Cut to 53mm length and adjust to roughly 68mm center to center like this
Servo Mount #
Printed parts required
- c_Servo Mount Left
- c_Servo Mount Right
- c_Servo Mount back traverse
- c_Servo mount front traverse
Servo Motor installation #
Lower wishbones and shock absorbers #
Printed parts required in this step
- c_8x Cone
Upper wishbones #
This orientation is new to the 220605 version. It was the other way around in the previous version
Servo link and steering links #
Printed parts required in this step
- c_ServoLink
- c_2x_Steering link 69mm (67mm and 68mm are also available if you want to experiment with different toe setup) or use the ones you made with threaded rods
Here’s a picture with the threaded rod steering link
Knuckles and wheel axles #
Printed parts required in this step
- c_Front Knuckle Left
- c_Front Knuckle Right
- c_2x Front Wheel Spacer
- c_2x Front Wheels Axle
Floor #
Printed parts required in this step
- c_Front Floor
- c_Front Floor Reinforcement
Middle section #
Printed parts required in this step
- c_Middle Floor
Middle cover #
Printed parts required in this step
- c_Middle Cover
Attach Middle section to front section #
Rear section #
Shock support #
Printed parts required in this step
- t_Rear Support Left
- t_Rear Support Right
- t_Rear floor
- t_Rear floor reinforcement
Rear wheel assembly #
Printed parts required in this step
- t_Wheel filling
- t_Rear wheel Belt
Shock absorber supports #
Printed parts required in this step
- t_Rear Wheel Support Left
- t_Rear Wheel Support Right
Wheel and wheel support #
Printed parts required in this step
- t_Wheel support traverse
Motor assembly #
Printed parts required in this step
- t_Motor Bracket
- t_Motor Bearing Support
- t_Pinion gear GT2 16T
Motor assembly to rear wheel assembly #
Printed parts required in this step
- t_Rear Wheel split prevention
Rear section final assembly #
Final step #
Printed parts required in this step
- c_2x Front Wheel 5 spokes
- c_2x Front Wheel Spacer
Body #
Now print and build the body style you prefer. Body Style 1 or Body Style 2
Driving tips #
- Brake to slow down before you turn. If you turn too fast, you will rollover.
- You may program your ESC to use drag brake force. It may help slow down the RC when you ease on the throttle.
Support #
If you like my builds, please consider buying me a coffee, it encourages me to continue making quality designs. Click on the coffee cup on the right bottom corner or visit the Show Your Support Page. Thank you, it is truly appreciated!
