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  1. M

    Scratch Patilla Build

    Those of you who have been following my threads know that I have been working on designing a Catalan style patilla lock for a from-scratch custom build. A quick update on that. I have ordered material for the lockplate and will start building very shortly. I plan to make several, including a...
  2. M

    Serpentine powder and handgonnes.

    A friend sent me a video of himself shooting a replica handgonne with serpentine. For a brief moment, I thought it sounded like a model rocket engine.
  3. M

    Serpentine powder and handgonnes.

    I recently worked up a CAD model of the Tannenberg handgonne, and I noticed an interesting design feature. In addition to the main bore, there was a much narrower bore which was meant to serve as a powder chamber. This got me to thinking why it was designed that way. Did it have to do with the...
  4. M

    Ferguson breech threads.

    For me, its historical interest. The Ferguson is unusual and represents a concept that was ahead of its time. I'd never want to make them in quantity, just one for myself.
  5. M

    Ferguson breech threads.

    I might save up for an old Pratt and Whitney. I don't have knowledge of designing gears or how to calculate gear ratios.
  6. M

    Ferguson breech threads.

    I know my lathe won't cut one TPI, and I don't know what lathe would, unless I could program it on a CNC. CNC machines are very expensive though.
  7. M

    Ferguson breech threads.

    I think we're all a little crazy, but that isn't a bad thing.
  8. M

    Ferguson breech threads.

    I had heard it was 11 TPI, 11 starts. But yes, each thread had its own lead, which is what allowed the breech to be opened with a single rotation of the trigger guard.
  9. M

    Ferguson breech threads.

    Question about the Ferguson breech threads. Are they more of a square or a V thread form? I can't see very much detail in this picture but it looks very similar to a square or acme thread.
  10. M

    Patilla design completed.

    You're very kind, thank you.
  11. M

    Patilla design completed.

    I have to say, I am quite proud of this design, and it is the first one I have completed. I am very much looking forward to building this lock, or maybe several. Too early to tell at this point.
  12. M

    Designing springs for locks.

    Yes, exactly it. I'm pretty sure there is a way to do it, but I am not an engineer nor are my mathematics skills any more complex than the shop math I make use of during the course of my job. Perhaps I need to try and look at this from a different perspective than that of a machinist.
  13. M

    Designing springs for locks.

    Hello Dave, you would be correct. Springs on Spanish locks do have simpler geometry than standard flintlock springs. Since its the heel of the cock that acts upon it, it doesn't need a hook to engage the tumbler, which is a part not present on the majority of miquelet locks. One of my questions...
  14. M

    Designing springs for locks.

    That's what I am doing for the most part. My issue is that I can design the spring in its uncompressed state, but then it looks weird in the assembly. I might have to figure out how to design the spring as it would be compressed and assemble it that way, then I have two models of the mainspring...
  15. M

    Designing springs for locks.

    People with more CAD experience than I, what is your process for designing lock springs? I am working on designing a miquelet lock and the springs are proving to be the most difficult part.
  16. M

    Miquelet double barrels.

    Hi Rick. Thank you for the offer. I'm lucky enough to already have an example on loan to me from a friend for the Moroccan snaphance. Both are proving to be quite challenging and interesting projects already.
  17. M

    Miquelet double barrels.

    Thank you. I'm also in the process of designing a Moroccan style snaphance lock as well. French, English, and American guns get an almost disproportionate amount of representation. I do like long rifles and Hawkens, but I want to build something different. Here are some more files of my CAD...
  18. M

    Miquelet double barrels.

    Actually I am a machinist. Thank you for your compliments. I am copying the design from the TRS kit #776, the Catalan military escopeta. Reason being I was not very pleased with the quality of the castings, and I decided it would be easier to make the lock from scratch using the castings as...
  19. M

    Miquelet double barrels.

  20. M

    Miquelet double barrels.

    Now that I have begun designing a patilla after a lock off of a Catalonian musket, it got me wondering. Were the Spanish and Portuguese ever known for building side by side fowlers? I have thus far only found information about the English side by side guns, but that being said, Spaniards and...
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