Required Hardware:
11x M5x20mm Bolt
3x M5 LockNut
4x M5 washer
2x 8x22x7 Bearing (skate/roller)
Print in PLA, or PETG
0.20mm and 15% or 20% is sufficient
The author remixed this model.
I've uploaded all the original files from gianniceccanti and have added the following
I used 25mm m3 bolt, but you can easily go longer if you want less max angle