RC FPV-Trike With Rear Steering Wheel

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About: Like to make stuff

As I hat some spare parts from my first FPV Rover, I decided to build a RC car. But it shouldn't be just a standard RC car. Therefore I've designed a trike with a rear steering wheel.

Step 1: Parts to Print

Find all parts you need on Thingiverse

https://www.thingiverse.com/thing:3669829

I've printed all parts (beside the tires) in PETG. But any material is fine here. Tires are printed in TPU.

1x Body

1x Top part 1

1x Top part 2

1x Front fender left

1x Front fender right

1x Rear fender

1x Servo arm

2x Servo extension

1x Rear wheel attachment (Support needed)

1x Rear wheel

1x Rear tire (use TPU)

2x Front wheel

2x Front tire (use TPU)

Step 2: Parts You Need (BOM)

Step 3: Preparing Motors

The ESC have a switch which you can leave if you want. If not, unsolder the two cables and bypass the the two pins. So the ESC is always "on".

Solder the JST plug to the motor. You can solder the ESC directly to the motor, but it's easier to replace with the plug if something broken.

Add 4 M3 nuts to the body and attach the motors with 4x M3 x 25mm button head screws

Step 4: Add Magnets to Body and Top

You need 16 magnets 6mm x 3mm for the body and the top.

Use CA glue to keep them in place.

Step 5: Rear Wheel Attachment

The rear wheel has build-in-support on one side where a bearing belongs to. Cut this with an exactor knife and open the hole

Step 6: Prepare Servo and Servo Arm

Cut the edges from the original servo arm to fit into the enlarged servo arm.

Step 7: Attach Rear Wheel to Body

Step 8: Final Steps

Attach the front wheels to the motors. They should press-fit to the motor shaft.

To secure the ESC to the body use hot glue, velcro or double sided tape.

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