This a bolt I printed on a Robo 3d R1. It threaded well with the accompanying nut I printed.
Here is the album of things I done printed so far (including nut on bolt action!):
https://imgur.com/a/MvmFu
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XFC Sektional Garagentor – Montageanleitung
Garage door installation manual. Check our channel for different language versions.
Background music used in this video Licence and Author info:
https://creativecommons.org/ns
https://ccmixter.org/files/djlang59
https://creativecommons.org/licenses/by/3.0/