This is a early release of me tinkering to 'upgrade' the wormStruder ( https://www.thingiverse.com/thing:28126 ) to the ultra light 28BYJ stepper...
I modified the shaft receptacle and also added a 5mm extension pin on the loose side thinking about adding a 625zz bearing there to give additional shaft support to remedy the very short shaft length of the small geared stepper (31g weight)... Already using a 28BYJ to Nema17 adapter like https://www.thingiverse.com/thing:2707798 this worm gear could be inserted in the remixed extruder. I have no priority to modify the housing of the original wormStruder because I don't even like 'hobbed bolt' drive gears and more over I am still thinking about attempting to make a dual steel MKS drive gear direct filament extruder for this worm, but the idea has not completely matured yet...
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