About this 3D model

I did this part after the Verry meny times I have Jammed my printer Against the X Endstop Modifyed it after first print. because mesurments of the Zip tie passthrough where off.I also found PLA was not a good plastic for this model all it did was fill in the gaps even after fermware tweeks (Current/Actual*Desired=New) took eight tries before I got the ajustments to satisfactory tollerences.