Originally Posted by
pdlamb
Just out of curiosity, when you recalibrate, how far off is/was the TM-1?
I calibrate against notch 24 for a 14g stainless steel spokes.
That's supposed to be @ 107 KGF.
After about a dozen wheels it'll be off a little. I'll set my rig as close as possible to 107 KGF...and get a reading of 102 or 103 or 104 or to the other side - 109, 110 - for a period of time.
I know the spring is about to break when it starts to stick to my calibrated setting for 107 @ the 24th hash mark - but reads way off for the 23rd and 25th hash mark.
The spring hardens eventually and becomes brittle.
This is the downside to spring based measuring instruments - the spring slowly hardens towards a brittle point and the behavior changes as it progresses before it finally breaks.
=8-|