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Francis Gastellu

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Francis Gastellu last won the day on January 17

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  1. Wishing you the best for your recovery, and thank you for the reminder, I do feel we sometimes get a little too comfortable, particularly when working with belt grinders.
  2. Wonderful! Anybody wants to try this with 24k gold?
  3. Very cool, makes me want to try some of these processes. Thank you for sharing this experience!
  4. What an incredible piece! Absolutely beautiful.
  5. There are even 1-phase to 1-phase VFDs, though they are rare. I just bought one to convert 50Hz power to 60hz for my engraving compressor, which would otherwise lose just enough CFM in Europe to be under the specs required by my pneumatic engraving machine (this doesn't work for all types of load, but as far as I can tell, this should work for a compressor, *fingerscrossed*). Also, even though slowing down the motor will result in power losses, it remains useful because you can still do the work, you just need to reduce the load (i.e, don't press so hard on the belt). It takes correspondingly longer to do the job, but you're a lot less likely to overheat a blade that's already been heat-treated. There are also cases where I just want to grind a tiny tiny little bit of material, and that's a lot easier to control with a slow belt.
  6. I don't know much about knife history but I would not have expected burl wood to have been used for a handle. I've seen the argument made before against reproductions (though not of that era) that burl wood for knife handles is really a modern thing. Shocking that someone on the internet could have been wrong!
  7. Yep, looks familiar. It's interesting that this is only the case in oxidizing atmospheres. This could explain why it's not an issue for the smith who produces it, as he works with a traditional japanese charcoal forge, while I use a propane forge. Thank you Alan. Between that and the excessive quenching, I believe I have my answers. It doesn't matter for this blade anymore but it is hard to correct mistakes with only ambiguous data, so this feels like a resolution I can learn from. I'll forge the third stack accordingly. I'll also likely look at setting up a charcoal forge in the new shop, as it's an all around better match for this kind of forging.
  8. What a great collaboration! Well done to the both of you, it's a real beauty!
  9. That's a big sword! It's about my size (and by that I don't mean it'd be the right size for me, *ahem*) Very nice indeed, I really enjoy your work!
  10. Phew. Definitely closer to the edge than I'd like, but considering... I'll take it. I see hints of bright nie waiting for a good polish. Quench was in brine, 3 Mississippis in, 2 Mississippis out and repeat. Sori is very slight, a little above 1/16". I also got a slight warp that I'll correct on the second tempering cycle, the blade is currently in the oven at 400F. Clay was for suguha but the tip chose otherwise. My guess is that the carbon content there is a bit more heterogeneous, as it made a very similar pattern on the previous attempt. If I had more time and more guts, I'd go for a fourth yaki-ire a tad hotter on the edge. As is, I'll call it hoso-midare and move on I actually had to pack the forge on Friday so that I could finally start moving the heavy equipment this weekend, so I made a makeshift one with refractory bricks and a mapp torch. This is actually not too far from what my first forge looked like 4 years ago Other than some preliminary polishing, this project is now on pause until I find myself in France and I've received my shipping container. There won't be space for a shop initially, as we'll be at a temporary location for up to a year while we look for the house we want to live in for the long term (a large barn is on the list of non-negotiables!). I'm hopeful that I'll be able to set up a small space where I can work on fittings.
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