Ai3M Y-Axis Linear Guiderails

This is part of a larger project for me, but it might be interesting as localized modification.
The modification solves the Z deflection of the Y rods (max. 0,15mm) and adds a really necessary Y-belt tensioning feature.

I used MGN12 rails and carriages, they are decently priced and have low inertia - a must using (only) 6mm belts. The Ai3M 220x220 hotbed remains unchanged, same M4 screws are required to be used for installation. Additional standard connecting items are shown in the drawing.

I have included and a very useful tooling for the installation of the rails. I strongly advise to completely remove everything (the motherboard, the power supply, display + etc) from the main Ai3M housing before to drill / install the rails.

Edit - one simple Y-belt coupling fitting that works with the adapter fitting added - in case a different Y-belt tensioning feature is already in place.

Worth to mention:
_The hotbed leveling has become much easier using the rails, even now my