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  1. K

    How To Cabosil for rigidizing ceramic blanket?

    I would never think about cabosil, but I see the melting point is around 3100F, darn that's hot. As Stacy just posted if following up with Kastolite and Plistex I don't see the need. I've got around 5 gal of Cabosil on hand that's left over from boat building days. I still use it for...
  2. K

    widening a billet with press?

    No combo dies came with the unit, only drawing die and flat die. It's too rainy today to get forge and press outside, but I couldn't stand it any longer - I took the acetylene torch and heated a 1/4"X1" wide bar and used the widening/flat die combo. Works pretty good. Bar after working was...
  3. K

    widening a billet with press?

    Here are the widening/flat dies I just finished in the press. The welds are just tacked in at this point so they're really ugly! Not had a chance to use them yet, just finished now at 5:30pm.
  4. K

    widening a billet with press?

    Chris (from another forum) gave me this idea. I like it MUCH better than just welding "L" bracket to press. I've got it welded to press last night, but this is a better solution. One for bottom, one for top. Easy to use and won't change press at all.
  5. K

    widening a billet with press?

    I had thought about something like your overhang, but for simplicity decided to try what I've got. The threaded holes you see are where the original dies are bolted in. Those threads are screw in, so it that does get buggered up they can be replaced. Once I use the slide in dies some and...
  6. K

    forced air forge tuning questions

    That hair dryer doesn't look like it provides anywhere near enough air. You might not be getting enough mixing of air/gas either. The propane "should" be injected into air stream right after the blower to allow the gas to mix with air better by making that elbow turn. The pipe between the...
  7. K

    widening a billet with press?

    Here's what I'm talking about for quickchange die holder. This is the bottom - forgive the crappy look, I've not cleaned it up up yet. When it's slid all the way back, there will be a pin that drops in front to hold in place. The back of the brackets have stops welded on so die can't go out the...
  8. K

    widening a billet with press?

    BillyO, you sure can tell the difference in the final pattern. I much prefer the top pattern done with flat dies. The bottom pattern really shows the distortion of the drawing dies. Here is another idea for combo widening and flatting die. Comments? This 4" width will require a new die...
  9. K

    widening a billet with press?

    Stacy, Thank you for your comments, they are ALWAYS appreciated. I've since sorta realized a single low arc as you mention would be the best method. I think I can stretch my dies 4" of usable space which would allow a combo die with about 2" of gentle arc, and a 2" wide flatting die. It seems...
  10. K

    widening a billet with press?

    I'm sure you're right about reason for not widening a desired pattern, but right now since I'm just learning to "weld" and not really worrying about what the final pattern is I hadn't thought of that. Good point though. Remember, I'm also talking about plain carbon bars and San Mai where there...
  11. K

    widening a billet with press?

    Thanks for the inputs - I've been away and didn't see the responses. Something along those lines are what I'm thinking of trying. Today is the first day without raining almost all day so hope to get a bit more project work done, a set of squaring dies welded up, etc. Why is it I've not seen...
  12. K

    DIY Liquid Nitrogen

    While I have to drive around 2 hours round trip to get LN, it's only 50¢/liter, or $5.50 (including tax) to fill my 10 liter dewar. That's about 45 to 50 minutes each way and 15 minutes to pay and get dewar filled. The welding supply that's 15 minutes from house charges $6/liter!
  13. K

    widening a billet with press?

    That's sorta what I was thinking BillyO, but wondered why I never saw any dies made like that. Thought I might be missing something. I'm thinking something like 3 or 4 tiny "fullering" sets on top 'n bottom. Perhaps make the "fullering" ridge no more than 1/8" deep? Maybe take a 1/4" rod...
  14. K

    widening a billet with press?

    Hello ya'll,. Let's see if this is the way to post a new thread. When working a billet with the press I have no problem making it longer. Even with flatting dies it gets longer, but not much wider. I start with a 3/4" square billet, drawing with flatting die it might grow to 1" wide, but...
  15. K

    New tester inbound

    Congrats on the new..... tool :) You mention resolution of 0.1, did it mention the ± accuracy?
  16. K

    Issues With Etching

    Travis, are you talking about specks that appear under the etch stencil itself, but not part of the pattern? "IF" these specks are under the stencil it's most likely pinholes in the stencil allowing electrical current to flow between the etching pad and the blade. These holes can be tiny and...
  17. K

    RBO DIY Heat Treating Oven / Furnace Build

    Which model Auber PID did you get? Does it have memories and ramp modes? I've got a couple of the Auber SYL-2342 which are good PIDs, but are only single stage and no ramp modes. There are several points I really like on your design - makes me almost wish to build one. The EvenHeat 18" model...
  18. K

    RBO DIY Heat Treating Oven / Furnace Build

    Keeton, you did a GREAT job on the video. One of the few 43 minute long videos I took the time to watch all the way thru. I like your oven.
  19. K

    Damascus billet

    Yep, note the comment about "nice and reddish" only to sprinkle borax (flux) over edges of billet to help seal from oxidation, or whatever it is that flux does in forge welding. After borax billet is back in forge for a nice soak until the color of billet looks exactly same color as the inside...
  20. K

    Damascus billet

    Update time: Did some work on a twist pattern Wed. This is the start - it's a 13 layer stack I forged out to 14" long, 1" wide and 3/4" high. I cut that into 4 of 3" pieces, stacked 3 of them (forgot the 4th) to give 39 layers. Forged that to a 3/4" square rod, then worked in press to make...
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