Hobbed Bolt for geared extruder
Description
5/16" x 2.5" (8mm x 63mm)
Will work with both 3mm and 1.75 mm Filament.
I would recommend use this item:
thingiverse.com/thing:13351
with Greg's Extruder.
Will work with both 3mm and 1.75 mm Filament.
I would recommend use this item:
thingiverse.com/thing:13351
with Greg's Extruder.
Instructions
You will need Lathe and special tool.
If you would like to order it, you can do it here:
ebay.com/itm/Reprap-Mendel-3D-Printer-Extruder-hobbed-bolt-NEW-/160673318024?pt=LH_DefaultDomain_0&hash=item2568e04488
or search eBay for item # 160673318024
If you would like to order it, you can do it here:
ebay.com/itm/Reprap-Mendel-3D-Printer-Extruder-hobbed-bolt-NEW-/160673318024?pt=LH_DefaultDomain_0&hash=item2568e04488
or search eBay for item # 160673318024
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mwiktowy
on
November 22, 2011
said:
That looks to me to be knurled bolt make with a knurling tool ... not hobbed.
Does anyone have experience as to how well knurling works as a tractor for the plastic filament vs. a hobbed surface?
License
Hobbed Bolt for geared extruder by maxoutny is licensed under the Creative Commons - GNU GPL license.

Yes, it was made using knurling tool, I named it as "Hobbed" just for easy searching
and taging.
I installed it on 4 printers with Greg's Geared Extruder and it is no problem at all.
The only issue I was experience is filament wasn't positioning in the same spot
when extruder working, then I found this thing: thingiverse.com/thing:13351
and it works like a charm now.