Where did you get your hotend mount from?
I have developed this hotend mount, but not published it. I have uploaded the .stl files for you.
Change the metal-cord belts on common black ones please... trust me)
Can you share your project?
Of course. However, I still have problems with the Z-axis. This is not stiff enough. However, it is possible that a different mount may be sufficient for the linear guide.
Look at the HyperCube Evolution for a very solid Z stage. There is a 2020 version as well /thing:2452700