Rollerblade

I have made a few changes to the design but instead of replacing what's already in here I have added them to the file. This new version allows ptfe to go all the way through to the bearing and gear allowing you to butt the ptfe against the 2 for better flexible filament printing. Let me know if you use it and if you like it! This change requires m10 pneumatic fittings.

I have also added a handle to the arm to more easily load the filament.

https://www.facebook.com/groups/1156304777857840/

You can find the Assembly of the Extruder here.

https://www.youtube.com/watch?v=O93Itf_vq7k&t=166s

This is part of the C4 designs and it's named the Rollerblade because it utilizes a skate bearing. It's pretty smooth and it should do well for TPU and normal rigid filament.

You also don't need to print a mirror copy because the distance to the holes from either side is the same so you can extrude in either direction.

The big wheel in the front is for manually cranking the filament in either direction.

Hardware requirements:

1-Skate Bearing

https://smile.amazon.com/gp/product/B000FDRQ1S/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

1-MK7 Stainless Steel Extruder Drive Gear Wheel 5mm Bore

https://smile.amazon.com/gp/product/B01KJONSRS/ref=ppx_yo_dt_b_asin_title_o07_s01?ie=UTF8&psc=1

2-10mm M3 screws
1-M3 nut
1-30mm M3 screw
1-15mm M3 screw
1-8mm OD 20mm Long Light Load Compression Mould Die Spring

https://smile.amazon.com/gp/product/B013G5I4US/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

2-PC4-M6 These are pneumatic ptfe couplers I bought mine from here but if you only want 2 you will have to look somewhere else.

https://smile.amazon.com/gp/product/B07L8R4SMG/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1