You can choose from three bodies for each mounting style.
Major changes from previous version
Probably flexible filament support
Reinforced the idler
M5 fitting support
2018-12-22: Added PTFE_Cut_Jig.stl and image
Stepper motor: NEMA 17
Filament diameter: 1.75mm
Drive gear: MK8 drive gear
Pneumatic fitting connecter: PC4-M5 or PC4-M6
Extruder Body Types
This type can be mounted on a box type printer.
The distance between the two holes of the mount part is 49mm.
If the holes position of the mount part does not match the holes position on the printer side, you can use Blender to edit the STL file and move the holes position.
This type can be mounted on a printer with T-slot.
This type can be mounted using a metal bracket or this gimbal.
If you replace the motor spacer with a metal bracket, you will need to change the screws(M3x8mm -> M3x10mm, M3x10mm -> M3x12mm) that mounts the stepper motor and extruder, furthermore four sets of screws/nuts/washers for mounting on the printer are also required.
1 x NEMA 17 Stepper motor
1 x Heatsink for Nema 17 stepper motor (optional)
If you printed the body with PLA filament, it would be better to attach a heatsink
1 x MK8 drive gear
Outer diameter: 9mm
Hob diameter: 7mm
1‒2 x PC4-M5 or PC4-M6 pneumatic fitting connecter
M5 body -> PC4-M5
M6 body -> PC4-M6
Use to return the deformed PTFE tube after cutting
Use to lock the pneumatic fitting connector or PTFE tube to the body
Use to attach the idler to the body
Use to clean the drive gear automatically
1 x 625ZZ bearing (or 625-2RS bearing)
1 x 608ZZ bearing (or 608-2RS bearing)
1 x Small sponge piece (idea from Marco67)
Put into the motor side rectangle hole on the extruder body (to fix the M3 nut position)
2 x M3x8mm pan head screws
When mounting Type C body with metal bracket, change to M3x10mm
2 x M3x10mm pan head screws
When mounting Type C body with metal bracket, change to M3x12mm
2 x M3x15mm‒18mm set screws (headless type)
2 x M3x40mm screws
Using the countersunk head screw makes it easier to remove and attach the clamp
When using full thread screw, stick an adhesive tape on a place to touch the idler to the washer board, the idler movement is becomes smooth
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