Spool brake

I found when printing with TPU (and I would imagine any flexy filament) that even the slightest pull from the extruder would make the spool spin too much, tangling the filament around the holder. This basically locks the spinning part in place. Made to go with https://www.thingiverse.com/thing:4826849 which is itself a remix, so will likely work with multiple spool holders.

Use TPU for the smaller bit and PLA for the bigger

Will need an m3 bolt maybe 15-20mm and I used a spring from a mechanical keyswitch

The bolt should slide easily through the top. Pic is of earlier version that was a bit too big

Printed the smaller bit set like a bridge on the build plate with supports

Larger section printed flat no support

I used a brim for everything but was having adhesion issues so YMMV

EDIT: a spring from a clicky pen seems to work better

Print Settings

Printer Brand:

Longer

Printer: 

Longer LK5 Pro

Rafts:

Yes

Supports: 

Yes

Resolution:

.1-.2

Infill: 

probably irrelevant but %20 should be fine

Filament: whatever PLA, TPU black

Notes:

I bumped up the walls so there is pretty much no infill but I'm not sure that's necessary

Category: 3D Printer Parts