I make this rail protection for mini lathe, it's 4mm deep and work great with 5mm felts
Rails are realy clean and oiled every moment.
I make later 3mm bore for screw head to go in.
Use M1,6mm screw.
Also make aditional 2,5mm hole from the top to add oil into felts.
Also i make the gear protection, booth works great for me, fut you heave .skp (sketchup) file inthere and you can change the parts...
Hope you like
You'r welcome to see my other videos:
BE CAREFUL to make one left and one right, just mirror the object.
Just print with 0,1 or 0,2 layer, i try booth and it works
I use PLA