I’m currently looking into upgrading one of my old printers with a filament cutter since filament ramming gives me headaches. It’s supposed to be controlled by the printer but I don’t find a clear answer what kind of servo or actuator to best use (which is both lightweight but also strong enough). I still have some servo pins available on my board, no stepper though.
Can someone give me a hint what to look for?
I really like the bambulabs solution of repurposing the printer’s own stepper motor to cut the filament. Basically just a push-lever connected to the cutter on the print head. To cut the filament, the print head moves off to one side and bumps the lever against the edge of the printer.
Damn, that’s indeed a really cool solution. I’ll look into this, thanks!