No clue what a sine bar is, but I will in a minute.

I think it may be possible to build a sine bar rifling attachment for my lathe

As opposed to a complete machine

I skimmed through a “sine bar” video, and the guy was describing trig functions.

Sohcahtoa

I haven’t used that in a few decades.

But I still remember it!

Now I’m deciding how to apply that to barrels.

Check this out:
(Link moved to <#649348710731350076> )

In that video the angled green bar above the machine is the sine bar

The long blue bar underneath it engages with the sign bar causing it to move back and forth that in turn turns the Chuck holding the cutter

By adjusting the sine bar you can adjust the twist rate of the barrel

That’s pretty cool.

Holy Schnikees, @Deleted User , you cleaned the place up already. Lmao

I’m listening to the video you posted, entitled, “WOE TO YOU TAMUDIC ZIONISTS FOR YOUR TIME IS SHORT derek broes”

Pretty wild.

The guy’s heart seems in the right place.

https://youtu.be/zWQL-KyaASw

It’s Russian hackers for sure.

And by Russian, I mean Chinese.

@Karnivore Hows it going?

https://www.youtube.com/watch?v=3zIlNgWUK6Y

@Karnivore Electronic 80s music that I was talking about

Hello, @Dagbreker

I’m just enjoying a fire in my fireplace, at home.

Want

@DankBurrito Pappa Soros approves

LOL@ Electronic 80s music. 👍

@Karnivore One more...

https://www.youtube.com/watch?v=Z1oB2EDu5XA

I need to get my AirPods to listen to that.

:)

That sounds exactly like 1985.

Yes...

When I heard this song this year... I just had to dig up the old walkman

I probably have one of those at my childhood home somewhere, 1,000 miles from here. LOL

And I’m sure that it doesn’t work.