Follow the assembly guide of the MK3 except when you install Y motor mount and Y idler where you have to look at the assembly guide of the MK2s/MK2.5(S). You can also use the part positions from the 5th image.
Remember to come back and post what you've printed as Make.
It's good for the designer and the community (that means you)!
To post a Make, come back to this Thing and click Post a Make.
Or, you can use the Thingiverse Mobile app found on
and the Apple App Store.