ProStruder Locking Lever

thingiverse

One of the things that really stood out about those high-end BondTech extruders was their ability to let go of the filament without constantly pressing a button when loading or removing it. The ProStruder is very easy to modify and gave me a perfect chance to add this feature. This button/lever/whatever replaces a pair of acrylic and one M3 washer at the end of the filament release lever, allowing you to release the filament normally or lock the lever down with an inward push for easy access. I printed this in PETG to match all the other parts as well as for durability. I'm pretty sure that PLA would be good enough if you keep it in a room temperature environment. When installed, this might clamp down a bit too tightly to move freely, so I rubbed some bees wax on the sides near the hole. If you don't have bees wax, candle wax works just fine here.