Topeak TetraRack - Rear Basket Connection Adapter

Topeak TetraRack R2 Rear Bike Rack

The mounting holes are designed according to this rear basket from Amazon:
https://www.amazon.com.tr/dp/B0BTPH3FS8

I added two types of front lockers: one is attached to the rack, and the other is attached to the basket using M3–M4 bolts.
I preferred the C-shaped front locker design.

I printed the rail vertically for smoot side surface, so I added two side supports and one inner support to provide extra bending strength.
All supports were printed horizontally.

The side supports must be printed in two pieces, and one of them should be mirrored along its length.

Finally, I assembled the parts using super glue.