Simple MK7 Driver Flex and Hard Material - Bowden Extruder by Blosters

Last crawled date: 3 years, 5 months ago

I've been a long to search on Thingiverse an extruder than can print easily flexible filament.
I haven't find what i want so i design this, i've to get some more tests to be reliable.
I uses a 625ZZ bearing and an MK7 Drive Gear, and it's designed to place a cutted bowden tube (4mm) than can be cut in the middle to the shape of the MK7 drive gear and the bearing, in order to prevent flexible filament to slip off and enroll.
Thanks to AxMod3DPrint for his Nema17 mount for 2020 extrusion on this design :https://www.thingiverse.com/thing:1313587
If any suggestion tell me, i'm still working on it ;)
Edit : Pease uses the chariot v2, there is some problem with v1 that the bearing don't spin freely.
BOM :
MK7 Drive Gear
625ZZ Ball Bearing
4x M3x20mm
2x M3x45mm
2x Bed Spring
2x M3 Nut
PC4-M6 Push-Fit Connector ( For 4mm bowden tube and 1.75mm Filament)
Edit : Tests done, working well for me, if you made it, please, share your make !
If Any question, i'm here !