P3 style spool roller - V2

I designed three versions of the V2 spool roller:

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easy, full printable design (608 bearing):
Just print it, push on the bearings and screw it together.

BOM for a set:
- printed parts
- 8 screws DIN 912 M3x20
- 8 nuts DIN 985 M3
- 4 bearings 608 ZZ

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easy, full printable design (628 bearing):
Just print it, push on the bearings and screw it together.
BOM for a set:
- printed parts
- 8 screws DIN 912 M3x20 (better M3x21)
- 8 nuts DIN 985 M3
- 4 bearings 628 ZZ

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hybrid design:
Laser cut steel side parts and printed spacer.
... but you can print it completely if you want.

BOM for a set:
- laser cut steel parts
- printed parts
- 4 screws DIN 912 M3x
- 4 nuts DIN 985 M3
- 4 screws DIN 912 M8x
- 4 nuts DIN 985 M8
- 4 bearings 608 ZZ
- 8 washer DIN125 8,4

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