I am rather pleased with the results on this square! The combination of the circle, triangle and bar make for a nice composition. It has the feel that I aim for and is quite practical.
My goal was to replace the orange square with a more appealing tool, just as useful and hand made.
Here is the back side of the square, If I hold it in one hand and tap the button, from this side, with the mallet, the bar will be released.
Here it is with the button in release positionl.
A little detail on the button.
When the button is forward, the bar can slide freely. The hole was drilled at a ten degree angle. The notch in the button is at a 12 degree angle. This makes for a pretty nice grip!
With the button back, the bar becomes locked in place! The curve at the back is so when it is released, the button does not fly off and get lost.
This is a very solid, reliable and I think pretty mechanism.
And the square is indeed reasonably square!
The square can make a 45 degree mark.
The square can make a 60 degree mark.
The head is mesquite, the bar is mesquite and the button is ash. I wanted a softer wood for the button so that bar would not get all marked up.
After I mark the measurements onto the bar, I think it will be a more than adequate substitute for the orange square.
My daughter has named it a button square. I kind of like the term.