The most useful and practical print that anyone could print! I already designed myself a 200mm ruler and now decided to make a triangle ruler.
If you don't have AMS then you can simply download raw model file and add a pause at layer #9 and then change out the filament to a different color.( Same applies to 200mm basic ruler, they are exactly the same thickness, so you can print em at the same time).
You can download 200mm ruler from here: https://makerworld.com/en/models/386026#profileId-286387
You can download 100mm ruler from here: https://makerworld.com/en/models/440402#profileId-346072