Robomow RS622 Drive Wheel

This is a replacement drive wheel I designed for the RS622 robotic lawn mower.

The goal was to create a strong and functional wheel that can be printed at home and used as an alternative to the original part. The wheel consists of a rigid inner wheel and a TPU outer ring for added grip and improved traction on grass.

The design is intended for anyone who:

• needs a replacement wheel
• wants to repair instead of replace
• enjoys making functional spare parts with a 3D printer

The wheel shown in the photos is printed and mounted on the mower for real-world testing.

Material suggestion:

• Inner wheel: PETG, ASA, ABS or another durable material suitable for outdoor use
• Outer ring / tread: TPU

PLA may work for testing, but for long-term outdoor use I would recommend a more durable material for the main wheel.

Print suggestions:

• Print the inner wheel with enough walls/perimeters for strength
• Use a solid or high infill setup depending on your material and printer
• Print the outer part in TPU for flexibility and grip
• Check tolerances and fit before final assembly

If you print one:
Feel free to post a make, leave feedback or share any improvements. It is always interesting to see how others print and use the design.