Recent content by MTBob

  1. MTBob

    Cutting G10

    I use vertical metal bandsaw using Lenox variable pitch 14-18 TPI, bimetal blade Chomps right through G10, scales / liners, no problem.
  2. MTBob

    TUS Stencil Cracks & finger nail polish?

    Huh, ... and I thought phone books were used by knife makers as a convenient source of paper for testing edge sharpness. The last pay phone I saw in Montana was in Cooke City and it had instructions on how to insert coins and push the buttons! Thanks for the tip - I'll begin storing my...
  3. MTBob

    TUS Stencil Cracks & finger nail polish?

    Nick: Perhaps my problem is not using the neutralizer solution that came with the power supply. I've been using Windex instead. Interestingly, the guy from TUS said that shouldn't make any difference, and that my issue was simply bending the stencil too much.
  4. MTBob

    TUS Stencil Cracks & finger nail polish?

    Thanks Ed, great comments. As you suggested, I have been "degassing" the stencil process by placing the etch pad 3-5 seconds on the stencil and then lifting. I have varied the number of pad applications from 10 to 30 during the etching process to see how much depth is achieved in the image...
  5. MTBob

    TUS Stencil Cracks & finger nail polish?

    After less than a dozen applications my stencils from TUS are developing hair line cracks aground the image. Those cracks show up on the steel as small spider web lines around the image. I'm using a Personalizer Plus typically set at 3.5-4 and do a 2 step cycle, first etching then marking. I...
  6. MTBob

    Chemistry help - Acid Etching

    Ah, indeed, I did ask a dumb question - I didn't realize that you're etching damascus. That makes sense.
  7. MTBob

    Chemistry help - Acid Etching

    Not that I know anything about etching stainless.... but, why 18%. Wouldn't 36% etch perhaps twice as fast? And... pardon me for the dumb question, why are you etching the stainless steel?
  8. MTBob

    Ever need 3 hands?

    Duh! Why didn't I think of that? Great tip.
  9. MTBob

    Metal Progression - What's Next After 1084?

    Thanks for all this information, it is very helpful. Bob
  10. MTBob

    Metal Progression - What's Next After 1084?

    Help me understand this. I assume the upper piece is the 80CrV2. Are you saying that you were able to get better grain structure (smaller grain) in the 80CrV2 because you used an oven to HT that sample -- and that because the 1075 was HT'd in a forge it resulted in larger grain structure?
  11. MTBob

    Ah, I just saw your other posting here, funny you noticed that user name. Ya, I'm indeed...

    Ah, I just saw your other posting here, funny you noticed that user name. Ya, I'm indeed EmptyBob. Someday perhaps I'll learn enough to be FullBob.:D
  12. MTBob

    Metal Progression - What's Next After 1084?

    Kevin, thank you for such a thorough answer, very helpful. Could you elablorate on what to look for in a "proper" HT grain structure? I've heat treated some 1084 sample pieces and bent them until they broke. I saw the difference in the bending angle before the samples fractured. But, as I...
  13. MTBob

    I live about 15 miles north of Bozeman. Bob

    I live about 15 miles north of Bozeman. Bob
  14. MTBob

    KMG 3 speed or variable

    Thanks Ed, that is REALLY helpful!
  15. MTBob

    Metal Progression - What's Next After 1084?

    I got a dumb follow-on question (one of many). I've now heat treated a bunch of 1084 and have made some tooling with O1. It all seems to harden adequately - but, how do I know that I've got the process optimized? For instance, I follow all the necessary steips for heat treating 1084 - I...
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