VORON Flex Bowden Extruder

thingiverse

Overview: https://www.youtube.com/watch?v=8s7HgMFrdTg UPDATE: REV A1: The hole for the set screw has been enlarged to accommodate unkeyed (D shaped) motor shafts. REV A: Issues with flexible filament have been addressed, and modifications have been made. Flexible filament still had a path to navigate around the drive gear due to the PTFE tube's tendency to be pushed up. The tubes also have a propensity for being pulled down. To solve this issue, a channel was created in printed plastic to guide the filament, and a bolster was added to fill the space between the top curve of the drive gear's tooth channel. Now, flexible filament will slip smoothly, like any filament should, instead of jamming the gear. Additionally, 3mm versions of parts that required modification have been included. I've finally achieved an extruder that meets my expectations: easy access and 70mm/s retract speeds. Furthermore, I can now print 1.75mm Ninjaflex with ease. You will need to acquire the following components: 4 - M3 22mm hex head screws 1 - M3 hex nut 1 - M4 14mm hex head screw 1 - M4 hex nut 1 - MK8 Drive Gear 1 - 625-2RS ball bearing Also required are a BSP bowden coupling (1/8) and approximately 40mm of bowden tubing. Insert the bowden tubing completely, then shape it with a razor blade using the printed body as a guide. Next, attach the screws and secure the entire assembly to the motor. Align the key on the motor with the slit, slip on and align the MK8 drive gear, and finally tighten it. Print Settings: Printer: VORON Rafts: No Supports: No Resolution: 0.2mm Infill: 40%