Ruler Sliding Guide Clamps

thingiverse

These are designed to aid in making measurements with various rulers, in order to clamp you need to add some hardware. Inside the slide is a spot to insert an M3 nut, I find it easiest to screw the nut into a bolt then press it in. to tighten you need to provide either a M3 bolt with a handle or an M3 thumbscrew (at least 6mm long bu preferrable 8mm). NOTE: Over tightening will cause movement and scare the ruler, only use a hand tighten screw not a driven screw! 1/29/2018: Planning on adding some SAE versions of these along with some tweaks to the existing ones in the weeks to come. 2/3/2018: Added SAE versions with 4-40 and 6-32 nut inserts