One of my hobbies is making T-shirts, and I have long needed a T-shaped ruler to help in placing the artwork. Why buy an oddly shaped plastic ruler for $30 when you can make one for $4000?
I used the SVG ruler generator posted the other day to make the pip marks, but made my own numerals. The font is Phonecia which you can get at the fabulous Iconian Fonts. All artwork is printed reversed so it lays flat against the garment, to minimize parallax errors. The material is PG “thin acrylic.”
The numerals are done with a light manual engrave: 800 zooms, 61 pews, 270 LPI. The pips are a manual low-power cut operation, to produce a much more shallow line than the PG Score operation: 500 zooms, 40 pews.