USE PLA+ or TOUGH PLA
Make sure to use the new V3 Coil! after ALOT of testing, if the coil is loose it won't function properly it must sit tightly on the blade nub
The coil direction affects its function greatly. Make sure to try both directions.
ALSO, MAKE SURE TO DEBURR AND CLEAN THE 90° ANGLES
ESPECIALLY THE BLADE SO THE SPRING LOCK CAN CATCH
I set my Initial Layer Horizontal Expansion to -0.10 so there's less to clean, be careful setting it too low as it might affect your bed adhesion… obviously
PLA+ (recommended)
PETG (weak ah coil)
the best OTF setup I got so far is:
PLA+: Coil, Case, Lid
PETG: Slide, Lock, Blade
I watched some videos of people installing the lid very strangely, so here's how i do it
The author remixed this model.
Heavily modified inner and outer parts to make the printable coil spring work properly
Bottom ridges for improved grip and support.