double wheel extruder

This is a double wheel extruder, it is more stable and reliable, and is very nice.

Parts:
2x MK7 Extrusion wheel, inside diameter = 5 mm, outside diameter = 12 mm
2x Bearing 608zz
4x Bearing 605zz
2x M5 Hexaon Head Screw length = 50 mm
2x M5 Nut
2x M5 Screw length = 20 mm
4x M3 Screw length = 25 mm
2x M3 Screw length = 20 mm
6x M3 Screw length = 10 mm
7x M3 Screw length = 8mm
4x Spring, outer diameter 5 mm, 10 mm in length, 0.6 mm thick
8x M3 washer

If you nee