My kiddo likes to sit on top of her Thule Chariot for a better view. This however in the long run leads to the mesh material slowly but surely detach from the frame. That’s why I made a plywood board which sits on top of the frame in order for the mesh material not to get loaded.

I have utilized the designs of the bike mounts provided by Weberflo, Denste17 and allXages, made a remix myself and from that created a board adapter for my sitting board.

Print settings:

• PLA 0.2 mm layer height
• 3 perimeters, 3 top/bottom layers
• 8 % gyroid infill

All the holes are slightly elliptical and should print cleanly without support. I didn't use a brim but it's up to you.

• In addition you will need 4 wood screws per adapter ≙ 8 screws in total!

Board settings:

If you are also going to use a 9 mm plywood board, the mount is designed for 2 x 4x25 mm screws for the front and 2 x 4x30 mm screws for the back screw holes. I chose to fasten the mounts 70 mm from left and right side, which was arbitrary though.

How to Board Mount:

Unlike the other Thule mounts, from which this one originates, the “main hook” is the back one. Therefore proceed with attaching the mount/board as shown below.
 

When the board isn't loaded, there should be a gap of maybe 10 mm between board front edge and Thule frame. This is intentional and avoids rattling from vibration.

I'd very much appreciate a “like” if you do and look forward to your makes! also please give me feedback on the design!

Thanks to the above mentioned authors for their work!

Enjoy everybody!