go to EVA 2 for the new thing
I present to you the EVA carriage platform - easy to mount, remix and use MGN carriages for different Hotend assemblies.
They work great with the Rat Rig V-core Pro "Easy mod" I created: https://github.com/pkucmus/Easy-Mod
A rather poor attempt to talk about those: https://www.youtube.com/playlist?list=PLR8LTCniA766Mg1a88iF8xhOlvZR-Rc3A
Visit the project page for instructions and more information.
If you want to help with testing - please grab a carriage and report your findings as an issue - please include pictures, videos and your opinion.
If you see anything missing from the Instructions - please file an issue.