Print belt test before any "x carriege" to choose the right one for you.
Changed BL_touch body
Uploaded wrong fan pancake holder. It's fixed now (pancake_DissEd = Good). Sorry, my bad.
Belt holder in x carriege keeps the design from prusa and most belts don't want to play nice with it. Uploaded a belt test to check which one works with your gt2 belt. The x carrieges are named accordingly (If your belt fits in number "2", download x_carriege2...)
Changed body, cover and x_carriege(1,2,3) to use hexagonal nuts instead of the square ones. HexNut in the name for id. Printed a sample and all nut holes are ok. I did modified them. First ones weren't.
For "fan holder both screws" the lower-right screw is 25mm. In case you don't use this part THE SCREW SHOULD BE 18MM, no more. - Removed due to screw colliding with radial fan