The purpose of this design is to enable fine-tuning of the pressure applied to the filament by the idler ball bearing.
Note: This is not intended to be a replacement for MakerBot's original extruder block! Since the Replicator 2X Desktop 3D printer is suited for power-users who like to experiment, this adjustable extruder block offers an alternative way of gripping the filament and pressure fine-tuning. Please do not attempt to replace your original block if you are not comfortable disassembling your current extruder and fix any issues. If you try this design, make sure to save the original parts and follow the instructions below carefully.
- http://bit.ly/1eaYi3p (instructions)
All parts can be 3D printed!
Offers step-less filament grip pressure adjustment
Built-in filament dust filter with sponge
Cover plate to protect stepper motor cables and connectors
Fasteners and ball bearing can be re-used from the original
Parts list :
Base left (3D-printed part)
Base right (3D-printed part)
Lever left (3D-printed part)
Lever right (3D-printed part)
Bearing cover left (3D-printed part)
Bearing cover right (3D-printed part)
Stepper motor cable cover (3D-printed part)
M3 Nylock nut (2 pcs)
M3 countersunk screw - 23 mm (2 pcs)
M3 countersunk screw - 6 mm (2 pcs)
M3 hexagon screw - 35 mm (2 pcs)
Tools and materials:
2 mm hex key
Water pump pliers
A few drops of super glue
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