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Adjustable bowden extruder for MK7
by DWONH
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This is bowden extruder which can adjust tension of spring easily with M3 allen wrench.
It is for MK7 drive gear and 688ZZ(8x16x5) bearing.
It uses fitting from E3D v6 hotend as bowden tube insert fitting, easy to use and looks simple.
Filament is guided all the way through inside extruder, to prevent possible stuck inside.
As for the spring, I use 25mm length of OD 8.2/ID 6.2. You might need stronger spring to have more grip in high speed printing.
Four 30mm M3 bolts (or Three 30m
It is for MK7 drive gear and 688ZZ(8x16x5) bearing.
It uses fitting from E3D v6 hotend as bowden tube insert fitting, easy to use and looks simple.
Filament is guided all the way through inside extruder, to prevent possible stuck inside.
As for the spring, I use 25mm length of OD 8.2/ID 6.2. You might need stronger spring to have more grip in high speed printing.
Four 30mm M3 bolts (or Three 30m
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