The file 'Other Handed Direct Drive 1.75mm Bowden Extruder. Also Use For Cord Drive Of Curtains. 3D Printer Model' is (stl) file type, size is 58.7KB.
My second version direct drive extruder, I got the handedness incorrect for my mounting on my first one. This version has a funnel in the arm that you can fit a small sponge or cloth in to clean the filament as it goes in. I also curved the bearing end of the arm slightly to allow it to grip even tighter. If you use nylon filament and a good stiff spring it can drive curtains.
Quietly.
10mm fine pitch bowden clamp for tube for 4mm OD tube. ( http://www.robotdigg.com/product/348/Heavy-duty+push-fit+bowden+connector+4-01 )
Long direct drive 400 step per rev low voltage Nema 17. ( http://www.omc-stepperonline.com/9deg-nema-17-bipolar-stepper-44ncm623ozin-17hm191684s-p-12.html ) side mounted.
Note that the bearing cavity has 0.75mm thick supports designed in that should be carefully removed first with sharp side cutters.
| Fluidity_struder_arm_B.stl | 267.8KB | |
| Fluidity_struder_base_B.stl | 391.6KB |
