Pulley Puller Gear Extractor for Ender-3 and others NEMA17

update7:
It really can work :-)
Thanks K9TURRENT for the photo and the "make".


update6:

It is glued. The glue can be broken with heat. (soldering iron, fire, torch)
Details are discussed in the english ender-3 facebook group:
https://m.facebook.com/groups/439904499779979?view=permalink&id=595702564200171

Maybe a combination of this pulley puller wit heat could do the job.
If the pulley puller does not weaken or melt ;)

*****

update5:

It does not work.

:-)

From t