Argg. Usually the FUF visits are obvious and bloody. This time she snuck in on me. I am working on learning slipjoints. I had three together, with geometry problems so that they wouldn't snap shut. Re-made the blades and got them snapping nicely. Heat treated them according to the recipe I remembered. Put them together, made nice knives.
Sold one at a knife show.
It returned to me in an envelope today.
Turns out the edge rolled cutting a zip tie. The customer was rich and friendly, much better than I expected. Expressed no concern whether he got the knife or his money back, just wanted me to know it wasn't right.
Took it apart and RC tested the blade. Turns out it's RC 56. No wonder the edge didn't hold.
Moral of the story? Check your stuff x1000. I apparently overshot my tempering temperature by working from memory. Check your notes! I RC tested at 62 out of the quench. Didn't test after tempering. Stupid mistakes, and now I get to redo the blades I've already re-done. Still haven't figured out the best way to make it right for the customer.
Sold one at a knife show.
It returned to me in an envelope today.
Turns out the edge rolled cutting a zip tie. The customer was rich and friendly, much better than I expected. Expressed no concern whether he got the knife or his money back, just wanted me to know it wasn't right.
Took it apart and RC tested the blade. Turns out it's RC 56. No wonder the edge didn't hold.
Moral of the story? Check your stuff x1000. I apparently overshot my tempering temperature by working from memory. Check your notes! I RC tested at 62 out of the quench. Didn't test after tempering. Stupid mistakes, and now I get to redo the blades I've already re-done. Still haven't figured out the best way to make it right for the customer.