carriage 4 wheels 2020

I made this carriage because i had some issues with the original design (3 wheels) that came with my first delta.
The 3 wheel version tends to needs be tightened with much pressure, to ensure the fitting to the 2020 frame. Also these have the tendency to flip when the drive belts are tightened.

I used 23 mm. (5mm inner diameter and 7mm thick) wheels for this design. If you're wheels are smaller, then don't use this design. Because the fitting will not be snug enough.
Print one to test fit i