Pico Setup Ruler

This model has 1/16" rulers on most surfaces and notches every 1/8" on almost all surfaces. 

It can be used to set router bit depth, router plane blade depth, tablesaw width and height, etc.

You can use a pencil in a notch to draw lines.

This model was designed for a 0.15mm layer height. You don't need much infill, 15% is fine, I've used 5% with no issues (but very little speed up so why bother).

I had real issues with the corners curling up off the print bed so I added tabs to keep them down. It works for my printer. They flex right off, no need for tools.

I sand (lightly! with 220 grit paper on flat surface (like a tablesaw)) the non print bed surfaces to smooth them out. Ironing might work but haven't tried it.