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Back before milling machines became common, such things were sawn out by hand, or cast in iron, brass, or even aluminum, then filed or chiseled out. Look at some of the old books on what was called "benchwork" for how it was done, and the tools used. Burghardt was one of the authors who wrote about it in the late 19th & early 20th Century.

has a section describing use of chisels for "chipping" and filing, and in the Bench Work section.

another from the 19th century...

Cutting from sheet metal, and riveting would work, too. Laser, or jigsaw, or hacksaw & filing g...??

Could also 3D print something. Or use the print as a pattern to cast in sand or investment. Lots of ways to get where you want to be.

Bill in OKC?

William R. Meyers, MSgt, USAF(Ret.)

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On Tuesday, November 5, 2024 at 12:15:46 AM CST, Natius van der Watt <vnatius@...> wrote:

This could be handy; where is this section with drawings Mike?

I also need a banjo but I do not have a mill. So I figured if I could draw up the banjo in CAD, I could split it into layers and have separate pieces of sheet metal laser cut and the, rivet these together to get the profile with slots and grooves.?

Any thoughts on this?

On Tue, 5 Nov 2024 at 04:15, mike allen via <animal=[email protected]> wrote:

I forgot to mention that if ya contact Clausing who bought Atlas Press way way back & they no longer have the part for sale they will send ya a copy of the print so ya can make yer own . Also if ya check in the files section under17 Drawings, Atlas or Craftsman Machine Parts?

there are a bunch of drawigs for lathe parts .

animal