Bowden direct drive extruder for MK7 gear

It is just another extruder inspired by many beloved extruders on Thingiverse.

It is for MK7 drive gear & 1.75mm filament.

- Bearing: 696zz (OD:15mm / ID: 6mm)
- 2 M3x10 bolts
- 1 M3x15 bolt
- 1 M3x25 bolt
- 1 M3 nut
- 2 M3 washers
- 8mm~ spring (ID: 4mm~)
- M5 fitting

Print and enjoy!