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Very Hot Topic (More than 25 Replies) Barrel matting (Read 1134 times)
bnice
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Re: Barrel matting
Reply #30 - yesterday at 5:43pm
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chemical etching?
  
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cellargun
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Re: Barrel matting
Reply #31 - yesterday at 10:49pm
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After seeing the various examples in this thread, any idea how the fine squiggly lines on some English rifles were done?
  
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GT
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Re: Barrel matting
Reply #32 - Today at 10:35am
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Bob,
I briefly mentioned in my opening post, I tried a acid etching once.  I coated my sample area with a thick layer of beeswax, scratched my pattern the best I could with a scribe and used an eye-dropper with some floor etching acid (contains a small dose of nitric).  Rinsing afterwards. With my artistic abilities (not many) the results were dismal at best.  The acid created mutiple contours in short order so it does work but not a method I'm interested in pursuing.
I can't find the file with pictures I saved of my different process and results, when I started this post my intent was to post pictures, the file is MIA.  I'll work on this and share results as I find them.
Greg
  
"To invent, you need a good imagination and a pile of junk"  T. A. Edison
"The trouble ain't that there is too many fools, but that the lightning ain't distributed right" M.T.
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ssdave
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Re: Barrel matting
Reply #33 - Today at 1:29pm
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The english squiggly lines were done with a pattern tracer type of milling machine.  Think in terms of an offset cam/gear running in a parallel track groove, moving the cutter back and forth in a repeating eliptical pattern.  Someone mentioned Glenn Fewless, he did his matting with his CNC milling machine and single point mill cutter.  Similar process to the english milling, just CNC powered instead of tracer pattern.
  
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