I have read several times over the years the question, "where do you buy your building tools), some of them you have to make, like the mini squares I just did and I know others have made things to aid them in the many different building tool needs. So lets see some of your creations that make the job easier to do.

My squares were made from 1/8" and 1/16" aircraft plywood cut on a table saw and the slot for the leg to fit into was cut with a 1/16" kerf also on the table saw then the leg was glued into it and using a protractor to get it perfectly square and clamped till glue dried. I used Titebond glue. You can make them any size you want, I made them for building wings, marking rib location on spars and getting them straight vertically. Used high liters for color so I can find them and not pitch them in the trash as scrap.