This is a replacement for the smooth rod support piece that can sometime come in broken. There are two needed one on the left and one on the right. I have added the zhieght adjustment micro switch holder to the one on the right side so you do not have to worry about securing it to the smooth rod any longer. If you choose not use the one with the arm then simply make two of the pieces without arms as they are interchangeable.
There are three versions of the one with the arm to accomodate which ever screws size you happen to be using
.09" .11" and .17" I based thes sixes of the slots on teh parts I found for the microswitch in mcmasters as those three sizes.
They should be made with support to ensure the arm on the right side piece is level. If two left sides are printed then no support is needed.
Printing at 200microns is fine
The installation can be a bit confusing as the smooth rod hole is not centered on the piece as per the original so seat the smooth rod fully in the base first then move the new support piece to the proper orientation and screw down the nuts on the bottom are a bit tricky to get going due to location and size so have patience
I am using them on my printer (as per the images) without any issues at all