←back to thread

254 points Michelangelo11 | 1 comments | | HN request time: 0s | source
Show context
martin293 ◴[] No.42063782[source]
> One man, watching me while I cut 8-foot lengths of tubing for him, told me that I could simply hook my tape measure over the saw blade and subtract ⅛-inch to find the correct length. Piqued after I explained why his method wouldn’t work for a precise measurement, he responded by quizzing me on something I wasn’t likely to know: the purpose of the black diamonds on my tape measure.

Perhaps I'm picturing the situation wrong, but why wouldn't it work on the precision levels of a tape measure?

replies(7): >>42063901 #>>42064134 #>>42064356 #>>42064424 #>>42065158 #>>42065763 #>>42066888 #
NegativeLatency ◴[] No.42063901[source]
I don’t know specifically, but If your saw has a stop or something that’s going to be better than repeated tape measure measurements. Also assumes that the saw blade is actually 1/8 of an inch.
replies(1): >>42069869 #
1. zahlman ◴[] No.42069869[source]
Not the blade itself, but the total width of the material that will be removed as it cuts (https://en.wikipedia.org/wiki/Saw#Kerf).