Prusa i3 rework Dual bowden extruder 1.75mm direct Drive ajustable

Author: eMotion-Tech, published on 2014-08-06

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Summary

This is an improvable version of a dual extruder i3 version.
It has the following features:
-adjustable height
-direct drive with a 13x8x6mm gear drive
-1.75mm filament
-compatible to standard Jhead mount
-compatible Hexagon, Jhead, E3D, Merlin, and more
-adjustable spring straight
-Clipsable Extruder drive on the prusa i3 Rework structure (between plastic and motor)
Authors:
Thomas Batigne
Hugo FLYE
eMotion Tech

Instructions

We didn’t generate any documentation because of the current work in progress.
Correct me if I’m wrong but the BOM should be:
-2x 624ZZ
-2x drive gear
-2x M8x40+
-2x M8 nut
-2x M4x10
-4x M3x40
-2x M3x25
-4x M3x10
-6x M3 nut
-2x small spring
-2x big spring
-2x pneufit (1/8″ if your hotend have not thread entry)
I believe sharing it with pictures will be enough to understand the idea.
This material was tested with Hexagon and E3D and work pretty fine!
We think jhead is a bit more delicate to use because it seems to require more pressure to push the filament in the Jhead (we tried on a MKV).
Some more notes:
-We have two versions of the dual mount:
(x) the standard one will need a 4mmx 1/8″ pneufit and will need to thread the plastic part
(x) on some hotend you can directly screw a pneufit (such as Hexagon) so the integrated pneufit version has a larger hole in order to let the full pneufit pass through.
-Do not forget that you can directly put the extruder drive part on the prusa i3 structure (without screwing anything, gravity is here for you)
Enjoy !

License: Attribution – Non-Commercial – Share Alike

Tags: 175mm, bowden, direct_drive, dualstrusion, dual_extruder, dual_extrusion, E3D, hexagon, jhead, prusa_i3, prusa_i3_rework