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nprovos

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nprovos last won the day on May 11

nprovos had the most liked content!

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    http://www.provos.org/
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  • Gender
    Male
  • Location
    Mountain View, CA
  • Interests
    computer and network security, blacksmithing, Kendo, and lots of reading.

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  1. The upgrade worked this time. Please, let me know if anything appears broken!
  2. I tried an automated forum update today which was failed. The only way to recover was to restore the backup from this morning. Some posts or files may have been lost. Sorry. I may try an upgrade again - some time soon? Niels.
  3. I recently made another puck. Here is a picture after consolidating with a 4 pound hammer. This is without folding just forged at high heat and flux:
  4. nprovos

    In Dublin

    It was built between 1712 and 1732. The Museum of Ireland in Dublin is great as well. They have a nice Viking-age display. Here is a pommel from an 11th century sword:
  5. nprovos

    In Dublin

    Definitely worth a visit even without blacksmiths :-)
  6. nprovos

    In Dublin

    I find myself in Dublin for a few days - currently waiting in line to see the Book of Kells. Does anyone here know any bladesmiths or blacksmiths in Dublin? Would be fun to visit a shop.
  7. Looks like it's back for another 3 months :-)
  8. I am traveling to Dublin right now. It will take a little while before I can look into this.
  9. Here is the video that goes with it:
  10. Here is another high carbon puck (1050g input -> 925g puck). And here is the knife polished up, quite a few areas where the forge welding did not complete but good enough to finish up: If you look closely you can also see the differential hardening/shallow hardening from the wedge shape of the knife. Let me know what you think, Niels.
  11. Not a lot of folds. Maybe 7-8. Some were triples. I had some difficulties getting carbon in initially and it was due to excess oxygen.
  12. I wanted to share some photos from a recent hearth steel experiment we ran. The setup replicated how Emiliano has been producing hearth steel. Our protocol may have been slightly different: Input: Mild Steel (1in x 1/2in x 5/16in) and charcoal (1in pieces) 7 charges (150g mild steel + 400g charcoal). 1 charge every 4 minutes. One additional charge of 400g charcoal. Output: ~950g of high carbon stuff Here are some pictures of the setup: 7 Firebricks standing up; 1in tyuere at roughly 3/4 the height of a firebrick angled slightly downward. In action video Extracting the puck. After quick consolidation on the power hammer. Spark test. Looking good. Knife after heat treatment. Unfortunately, I made the tang transition below where I forge welded some mild steel. Oops.
  13. We made some hearth steel a couple of weekends ago. Ran into some issues at first but Emiliano came to the rescue with sage advice. Here is a knife from the material after heat treatment.
  14. I never tried to cut with a torch before. I should have read up on it - on the other hand, it was sort of amusing trying to chase the heat around the cut and seeing it clearly not working. The plasma cutter is a blast, I have been using it for lots of other purposes as well, e.g. repairing the side blast forge. Thank you.
  15. Here is an update. I get to try the sucker for the first time :-)
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