One day Iāll build a proper workbench, and I will have to cut mortiseānātenons, and I will use this tool to lay them out.
Itās leftover purpleheart (what did I use purpleheart on before this?) and some strips of brass Iāve had since college (what was I doing with brass in college?)
You can retract the pin into a little notch in the face if you only want a single line. Canāt remember if I saw that somewhere or if I was just very clever.