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 Re: 2019 Backun Mouthpiece
Author: Philip Caron 
Date:   2019-05-21 22:16

As a former software engineer for a prominent grinding machine company, the discrepancies seen are probably due to the process design, rather than the machining equipment. With a good process and decent hardware (and good consistent material), discrepancies would be measurable in millionths of an inch, several orders of magnitude smaller than what an eye can perceive.

Process design is not simple, and includes factors of material, cutting tool selection and maintenance, thermal changes, the platform holding the workpiece (which itself has to be stable within desired dimensional resolutions), the motors and moving parts, the computer hardware controlling the machine, and economic constraints (like how fast do you intend to produce each of these.)

I might assume the mouthpiece material is easier to shape than the metals that grinding machines typically are expected to deal with, metals chosen to resist heat and friction, i.e., the very process used to shape them. However, experience has made me wary of assumptions like that. It's undoubtedly a difficult thing to do well.

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 2019 Backun Mouthpiece  new
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