About this 3D model

Update: Changed my X-ends and carriage yesterday, the RJMP fit to tight, so I printed the holder with different diameters, 16.8 is a little to loose, so I will try 16.5. Uploaded a compiled stl, will try to print tomorrow. For use with IGUS RJMP-01-08. My first print has a wrong layer height 0.4mm. Also some layer shifts...Will print it again. But for now...