Curiouser and curiouser said Eugene

[kopcicle]

Or, how to turn polygons on a lathe.
It may or may not be useful for gunsmithing but interesting none the less.
The closed caption in the video is in English

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[Nosferatu]

Kinda neat, I guess. I could see it being nice if you have to make a fastener, you can cut an external hex head with the part still in the lathe rather than having to go to a rotary indexer on a mill. Getting that thing timed up with the right rpm timed with your spindle speeds would take some experimentation though. You'd probably scrap a bunch of parts before getting it right, which make the rotary indexer more attractive again.

 

[kopcicle]

The one area where my change gear lathe has an advantage. Simple ratios .

 

[Nutty4Guns]

That's like, math and stuff. Too much for my pea brain.

 

[kopcicle]

That's like, math and stuff. Too much for my pea brain.

Actually fairly easy once the brain stops doing circles around the drain.
The tailstock end is 1:1
The leadscrew is 1:2, 1:3 etc.
The rest is golden shadetree manufornicating using whatever the tax man and ex wife left you.
If you have a lathe with a milling attachment, or a mill, or bunch of clamps and blocks stacked up on the carriage, you can get er done.

 

[sobo]

golden shadetree manufornicating using whatever the tax man and ex wife left you.

 

[edzz]

That's like, math and stuff. Too much for my pea brain.

Went into electronics engineering so I wouldn't have to deal with math...
Like that worked out for me.