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A comment on A DIY Cruise Missile (2004). Parent comment

Re:A DIY Cruise Missile (2004) by roel_v on Wednesday February 20, 2019 @06:39PM (#19213205)
At work so can't watch videos on rifling a barrel, but can this tooling also be DIY'ed? I imagine rifling is 'just' a matter of using a very thin, very long cutter on a suitable lathe, but then I would think it would be pretty hard to make such a cutter yourself.
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Re:A DIY Cruise Missile (2004) by bsder on Wednesday February 20, 2019 @11:20PM (#19214516)
> At work so can't watch videos on rifling a barrel, but can this tooling also be DIY'ed?

There are a zillion videos on YouTube about this.

The hard part isn't the rifling, it's cutting the bore. After that, you can "just" push a rifling button through it and it will cut the rifling.

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Re:A DIY Cruise Missile (2004) by convolvatron on Wednesday February 20, 2019 @07:52PM (#19213560)
haven't looked at rifling, but making single point boring cutters for a lathe isn't at all hard. you can just screw a carbide cutting insert onto any old piece of steel.

seems like you'd have stiffness problems for long barrels (?)

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Re:A DIY Cruise Missile (2004) by dsfyu404ed on Wednesday February 20, 2019 @09:40PM (#19214078)
You could make a push broach that holds an insert (or make it out of HSS then press it through the barrel.
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