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    Small Production

    Yeah they're not always all stainless but I've done 12 stainless in one batch. Two knives per soak, while the next two are soaking I cool off the plates in cold water. When I finally have some spare shop time I'll be making some water cooled plates so I won't have to remove them to cool off then...
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    Small Production

    I also heat treat in batches, usually at least a dozen, they do start to add up though if you don't finish all before the next batch. I have probably two dozen heat treated blanks, then it becomes important to label the steel when they've been sitting around for months you forget.
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    Multi-part handle

    I should have warned you about gluing your fingers. I've done it more than once...
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    Multi-part handle

    I also do the pieces on wax paper with excess using thin CA glue and flatten them before epoxying to liners. I'm typically doing a 45 joint which are difficult to clamp so I hold them together tightly with my fingers on the wax paper on my surface plate and wick the CA into the joint.
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    Carving knives?

    I'd agree depends on type of carving. I make a decent number of those aforementioned sloyd knives for spoon carvers. I use 52100 at around 62RC and between 25-30deg(inclusive) scandi grind depending on type of speciality knife.
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    Working with dry ice questions

    I had 4lbs of dry ice in rice form so very small pellets and that lasted over 24hours in a cooler. I'd agree that two 1lb blocks with whichever liquid you use should be fine for 5 knives just start heat treating when you get home.
  7. I

    8670 steel

    It is a high toughness steel so I use it for harder use blades but use 52100 or AEB-L when I want a little bit more edge retention, relatively speaking. I think it's great for tough applications.
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    DMT Diamond Stones

    Well not answering the original question but to discuss sharpening in general I form the edge on a wet 220 grit belt on the slack just before my top platen wheel then I finish on an 800grit naniwa professional (chosera) waterstone and loaded leather strop. Kitchen knives I'll add in the 3000grit...
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    Sweeping plunge line? Grind line?

    I can’t say I’ve ever attempted such a sweep so take it with a grain of salt but I’d imagine you spend very little time at the beginning of your grinding “pass” assuming you start at the plunge and apply pressure towards the edge rather than the spine at the beginning of your pass.
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    How in the world?

    Something that I do when I’m making the scales before final glue up in the case of angled connections that like to slide if clamped together is I make that connection with super thin CA glue. I put parchment paper down on my surface plate and take my two 45deg cut pieces from my disc grinder and...
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    Shop safety, more than basics

    Always being mindful of what you’re doing is important with all things in the shop. Most HT ovens do have a disconnect switch so when the door is opened power is cut to the coils but verify that with your oven before taking my word!
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    Which Steel creates more scale?

    I think it’s more a matter of time at high temperature and amount of oxygen present at that temperature rather than steel type. So forging would have more black scale since you repeatedly heat it to high temps and expose it to oxygen. Two stock removal knives with similar surface finishes and...
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    Very Old Saw Mill Blades

    Even if it didn’t ruin the heat treat it’s too soft in saw blade form to make a good knife. I’ve used them as it’s fun to reuse old materials, even if known steel is always better, but you will have to do some HT testing to figure out if it’s appropriate steel and then re-heat treat the knife to...
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    Wilson 1PR Hardness Tester Questions

    That’s not a bad idea although I think certified weights cost more than I paid for this machine which is why I was going to go with the homemade weight but doesn’t hurt trying!
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    Wilson 1PR Hardness Tester Questions

    I picked up an old Wilson 1PR according to the serial number. There’s very little on the internet about this model. It does have a diamond indenter and looks in decent shape. It is missing the weights this is the biggest issue. Based on an old thread on another forum I’m planning on using a PVC...
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    Heat Treating Blade fixture

    I just made one the other day out of 2” angle and threaded rod. Take two pieces of angle and drill matched holes in each with the holes at the ends in the center of that side of the angle the other holes maybe 3/8” from the top then use a portaband to cut to each side of your 3/8” depth holes...
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    Ammo can

    I use the largest SS stock pot from Walmart holds probably 4gal but wouldn’t fit a super long blade.
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    Substitute for a Rotary Platen?`

    Yeah I agree with the above comments that looks great for handles and probably useful for a more pronounced convex. I have a rotary platen that I’ve yet to use for convex grinds as it needs to be modified to fit a file guide but I will comment that most of them aren’t fixed tensions as there’s...
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    This metal is hard!

    Is it just the very edge that’s hard? Like a HAZ from laser or plasma cutting maybe?
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    Frame handle help and tips

    I also do the blade and frame at the same thickness (or a couple thousandths larger on the frame) that way there is little slop. I don’t use any bolts just pins.
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