Bill of materials

3d printed parts:

• frame___________________x4
• roller shaft_____________x8
• roller____________________x4

Hardware:

• 608ZZ bearings_______x4
• M5x25 bolts___________x8
• M5 nuts________________x8

608ZZ spec sheet can be found here: https://www.skf.com/id/products/rolling-bearings/ball-bearings/deep-groove-ball-bearings/productid-608-2Z

You can use the following screw knob to tighten the bolts: https://www.printables.com/model/1334290-screwknob