I did see where you use a MM ruler....does it matter what size you buy
to make the OBW ? They have 2...small & large.Not sure what you mean about buying a ruler with a tip? I'm getting stuff together to start,but don't want to get the wrong ruler.Now I see you like the Clearview ruler best? Sorry to be a pest !
Hang on, I'll post a pic of my ruler...
BTW this is my old triangle with the tips cut off (not ideal!) I now have a new one with the tips but the angles are the same. Anyone who is buying one, get one with tips, the tips are important when making these as they help you line everything up!
Here's my triangle with my 6.5" square laying alongside it.