28BYJ Stepper Shaft WormStruder Remix

thingiverse

This is an early prototype of my efforts to upgrade the wormStruder (https://www.thingiverse.com/thing:28126) to the ultra-light 28BYJ stepper. I have modified the shaft receptacle and added a 5mm extension pin on the loose side, with plans to install a 625zz bearing there to provide additional shaft support for the short shaft length of the small geared stepper, which weighs in at just 31g. By utilizing a 28BYJ to Nema17 adapter like https://www.thingiverse.com/thing:2707798, this worm gear can be seamlessly integrated into the remixed extruder I'm currently working on. My priority is not to modify the original wormStruder housing, as I'm not fond of 'hobbed bolt' drive gears and am instead exploring the concept of a dual steel MKS drive gear direct filament extruder for this worm – though this idea still requires further development before it's ready for implementation.