Plasma would work until you needed a critical dimension such as laying out a motor side plate and ensuring the gears all meshes correctly. With each of those there is a tolerance and you have to chooose to center on the profile or stay to one side. I’m trying to get a response from a local firm to see what they would charge for a std sized sheet of parts. I do know over in the UK there is a bit of cortage industry at leadt one guy will laser cut live steamer frames and other parts if you provide the file etc. I got laser cut frames for an LBSC Bat which were very nice but of course shipping would be tough for a few parts.
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