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    Etched stirrup- Buckskin for prod

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    Hotspur
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    Etched stirrup- Buckskin for prod

    Post by Hotspur on Mon Jun 03, 2013 7:15 pm

    Just putting some final touches on the crossbow:
    I etched a design into the stirrup I got from Alchem a year ago -






    Also, I finally tanned last season’s deer hide and plan to wrap the centre of the new slowbow 250lb prod with buckskin (when I find my roll of sinew)...


    Just need to make a few complimentary bolts now!
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    African Archer
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    Re: Etched stirrup- Buckskin for prod

    Post by African Archer on Tue Jun 04, 2013 12:51 am

    Hotspur that stirrup is awesome, what chemicals did you use to etch it, my side plates on my latest are etched, but couldn get it deep enough to be worth the effort.
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    Re: Etched stirrup- Buckskin for prod

    Post by Hotspur on Tue Jun 04, 2013 1:21 am

    Hi A.A.

    I use ferric sulphate (the stuff you get at the garden store. They sometimes call it iron sulphate) as an electrolyte. Just mix some up in a saturated water solution. Then a non-standard use of a portable drill charger; anode(+) is the thing you're etching, cathode (-) is an iron spike or something. The drill charger runs at 14 volts 1.7 amps maybe. Give it 20 minutes to an hour or so depending on the size.

    I think a car battery charger with a manual settings would work better with more current but my car charger has some safety circuitry thing that cuts it out.

    Getting the resist right is my challenge...

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    Hotspur
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    Re: Etched stirrup- Buckskin for prod

    Post by Hotspur on Tue Jun 04, 2013 1:31 am

    I should mention an important step is to mask off all parts of the thing you don't want etched, like the back. I use masking tape, but there is probably a better way like paint or something.

    I do a fiddly laser toner transfer process for the design that involves stealing the wife's Vogue magazine for the glossy paper...
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    African Archer
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    Re: Etched stirrup- Buckskin for prod

    Post by African Archer on Tue Jun 04, 2013 1:39 am

    I had vinyl stencils cut, worked great and used a battery charge, the wet bit was saturated salt water with a bit of muric acid, it worked but stopped at a certain level and that was after 2 hours , going to try your method an see what happens , my method worked great on brass not mild steel
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    Re: Etched stirrup- Buckskin for prod

    Post by Hotspur on Tue Jun 04, 2013 10:24 am

    AA,
    I got most of my ideas from this web page - http://mordent.com/etch-howto/

    The guy seemed to know what he was doing. I think you want iron sulphate for steel.
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    Re: Etched stirrup- Buckskin for prod

    Post by Hotspur on Tue Jun 18, 2013 4:19 pm

    The stirrup installed along with the new prod from slow bow.



    Slowbow's string gives it a brace of only 2.5".  Little low?


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