Stacking Step Blocks

*Note- I don't think a printed pin is going to be satisfactory. Going to redesign to use a machine screw and captive nut, or maybe a machine screw with a machine screw post. Trying to find the appropriate dimensions, but may have to go to the hardware store and get the measurements myself.

I haven't printed this yet, so I don't know how well it will work. But the idea is that you use these as adjustable blocks when clamping material down. Please see the picture I attached.

Note: The actual