I designed a DRS system for the OpenRC-F1 a few years back.

Recently someone asked me about it and I decided to upload it here.

I tried to keep modifications to the minimum. I modified the rear wing and added a pin and an extra diffuser. You still need the original diffuser as mine only serves as a servo holder. You’ll need a radio system with 3 channels (throttle, steering and DRS).

All print with no supports!

You’ll need:

• DRS_rear_wing.stl
• DRS_wing.stl
• DRS_pin.stl
• DRS_diffusser.stl
• 3 x M3x12mm screws and nuts
• 1 x micro servo sg90 or similar

Instructions (see pictures); it is not difficult to assemble but it’s better if you follow this order:

• First attach the pin to your servo with one of the servo’s screw
• Then put the servo in the servo holder using another servo screw
• Now you can screw the wing structure (without the moving wing) to the car
• Then attach the moving wing to the pin with a 3mm screw and nut
• Now gently force the moving wing into the wing structure holes
• Finally mount the original diffuser with the other two 3mm screws

Video: https://youtu.be/wcOxkoGnHrM

Isn’t this awesome? A 3D printed F1 car with working DRS system!!

Hope you like it!