Rowing Wheelchair

This modification is to increase the power to the drive wheels making it easier for individuals with low muscle strength of maneuver in difficult terrain. Each wheel has a ratchet device that allows the wheel to be cranked one way with the option to switch the direction. The device can also be put in neutral allowing the wheels to spin freely allowing the wheelchair to be pushed.

Supplies

1/8 inch sheet metal

Ratchet

Socket

3D printing filament

Paracord

Step 1: Cut Brackets

Cut the inner and outer clamps using the provided files using a plasma cutter.

Weld a socket to the center of the outer clamp for the ratchet to attach to.

Step 2: Modify Ratchet

Print file for the Direction Switch.

Open the ratchet mechanism by removing the screws on the back plate.

Remove the dial that allows the ratchet to change directions and replace it with the 3D printed Direction Switch.

Reinstall the back plate using the original screws.

Step 3: Assemble

Attach the ratchet to the socket and select the direction of travel.

A string can be attached to the end of the ratchet to keep the handle within arms reach.

When pushing the wheelchair from behind it is best to have the Direction Switch in the middle position to allow the wheels to spin freely.