by 3DAndy, published
The design is derivated from the multi-material-extruder from RepRapPro.
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Hello, sorry for answering so late - I didn't see your comment (no e-mail from thingiverse?). I printed this extruder parts several times before and didn't have any problems with the gears. I use a 0.3mm nozzle, a layer hight of 0.2mm and PLA-filament. This print-setup works very fine.
No, not really. I printed my extruder drives with a 0.3mm nozzle and a layer height of 0.2mm. My parts work fine - without any special printing options or manual cleaning of the parts.
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Update V2 (3 Feb 2013): assembly instruction added; V2-extruder-block added (moved filament-drive-axis 0.5mm for better fit of hobbed bolt; larger hole for idler screw); deeper hole for motor flange (better motor fitting if your printed bridges are not perfect).
Update (24 March 2013): OpenSCAD sources added (they are not really nice - but better than nothing)
Watch this extruder in action: YouTube ( youtube.com/user/3DAndyAustria ) â€“ there you can find an assembly instruction video also.
Some pictures of the mounted extruder could be found on Flickr ( flickr.com/3d_andy ) - there you can see also the mounting kits for M8 or M6 threaded rods (and of course assembly pictures).
Needed parts to build one extruder-drive:
- 1 of each: extruder-body.stl, small-gear.stl, large-gear.stl, tongue.stl
- 1 M3x5 set screw
- 1 M3x12 bolts
- 2 M3x16 bolts
- 2 M3x30 bolts
- 4 M3 washers
- 4 M3 nuts
- 1 M3 nylock nut
- 3 623ZZ bearings
- 1 hobbed bolt (need one? Find me on eMAKERshop ( emakershop.com/Seller=2273 ) or write a private message on thingiverse)
For mounting the extruder to the top of a Mendel/Prusa (with M8 rods) you will need:
- 2 mendel-mount-front.stl
- 1 mendel-mount-rear.stl
- 3 M3 nuts
- 1 M3x16 bolt
- 2 M3x25 bolts
For mounting the extruder to M6 rods you will need:
- 2 huxley-mount.stl
- 2 M3 nuts
- 2 M3x20 bolts
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