Ruler stop for metal ruler

This is length fixer for 28mm width metal ruler and max thickness of 1,2mm. 

You need only the print. No need to buy aditional inserts or bolts. I have chosen t-bolt due to its superior strength.

In my opinion it is best printed standing with tree support for thread. I recommend to scale up the stopper (not the bolt) maybe 2 or 3 % to ensure smooth screwing.

I am using the t-bolt and thread from the nut for my design.