It's whatever the needle settles on at the end.
However, it appears that machine needs serious calibration.
I wouldn't trust readings off that machine.
He applied the minor load / preload off camera.
The next step is to release the major load
But he moves the dial zero off the needle...
Excellent article, I agree with what you wrote based on my experience.
I've heat treated a long list of different steels, some very exotic from Ferrotitanit WFN to Vancron SuperClean, Maxamet, CPM Rex 45 and CPM SPY27, etc
Even some more basic steels like 52100, 8670 etc
This gentleman is Devin Thomas, he is an extraordinary knife maker and pioneer in the world of advanced heat treatment and steel.
He is well known for his exotic pattern wielded stainless damacus.
He has been doing this longer than most folks here have been alive.
Very Exciting, :D first of many, many heat treats.
@Larrin has a cool website called
"Knifesteelnerds" it's an excellent resource to get a good understanding of all the wonderful details.
Stay Curious :)
Yea, I think I might have to try one. "Suitcase Grinder" haha
From the company description they're 33 year old company from Cypress (island in the mediterranean sea) in Europe.
They make stainless parts for marine and industry like exhaust manifolds etc.
Pretty dang cheap considering the horse...
Fucina 1x30 looks interesting, looks like a mini 2x72 and has a VFD with .75hp to 1hp options and prices from $300-500.
I'd rock that if I had to start over on a tight budget.
No idea what the quality is on those though but it looks very curious.
The VFD cannot be underestimated.
Hair whittling is a nice one.
Paper is often overlooked since it's easy to cut but there are some subtleties thay can be used to quickly check an edge, should be able to do a change in direction (wavey cut) without hang ups. Check the paper fibers, feel the resistance or lack of in the cut and...