After seeing the many devices shown, I understood the reason for 10 pages but when I thought it was just 10 pages of pictures of 17 inch long chunks of broom handle or pvc, I couldn’t understand how it garnered so many replies.As it says near the beginning of the thread, it does not matter to a lot of people. However, some folks with small stoves, or who sell wood to fussy customers might care.
And most of us have thought about some way to do this.
I have personally: ‘eyeballed’, used my guide bar, used a dedicated stick (wood, PVC, whatever), and tried some devices that attached to the saw handle or bar nuts. They all ‘worked’.
Lots of of other devices described in these threads: paint, chalk, story poles, etc.
The magnetic sticks are just so simple, easy, and effective. Measure once; cut once. I really like them.
Philbert