I did a small project for my new mini-lathe tonight. The compound has an angle adjustment on it. The original unit is molded and chromed plastic. It sticks out over the edge of the cross-slide and you can’t really see any indication of where it is supposed to be lined up until you turn the compound 90 degrees and find one small tool nick in the edge of the cross-slide housing. It also only has two degree gradiations. I wanted to try out scoring, so I made a protractor replacement. I will be marking and scribing new references marks once it is installed so that I can see things more clearly.
On top you can see the old one. The new one is on the bottom. The lines are different lengths to designate 0, 22.5, 30, and 45 degrees and also every 5 degrees, with each single degree gradiation being the shortest. I assembled it with the scores on the bottom to eliminate inaccuracy due to parallax.