A retraction torture test for the pancake stepper extruder. I actually printed the first Yoda with the worm gear extruder a year ago.
http://www.youtube.com/watch?v=UcqHncyxA20
that’s really quite impressive.
it really is! Sidenote: what happened to the sugru? And is your printer really THAT loud?
@Rene_Jurack Quietness hasn’t been my objective so far. There is a noisy radial fan for part cooling and a heavily resonating housing atm. The sugru is still there and working fine.
@Elliot_Foster Some information can be found here https://ultimaker.com/en/community/10657-a-different-multi-extrusion-approach-um-tool-printhead-changer?page=33&sort= and there is a link to a STEP file on the next page.