Gotteswinter's Method

[Bented]

I think tightening each key hole has similar results

Not all scroll chucks have 3 pinions, some have only one.

[RB211]

Wouldn't that be bad for the scroll?

I think tightening each key hole has similar results

[Stu]

One may move the scroll around by tapping the jaws in the appropriate direction, little is gained by this, I do it on nearly every setup when using a scroll chuck..

Wouldn't that be bad for the scroll?

[Bented]

One may move the scroll around by tapping the jaws in the appropriate direction, little is gained by this, I do it on nearly every setup when using a scroll chuck..

[Jammer Six]

It looks a lot easier than bumping the work. But it looks like after the last bump, he tightens all three bolts down without checking.

Anyway, I think I'm going to try it.

[Bob Engelhardt]

The "Bump True" chuck

[Jammer Six]

More stupid questions.

Watching the thread on content creators, I found the name Gotteswinter.

Watching one of his videos, I found this method for tapping in a cylinder to dial it in:
https://www.youtube.com/watch?v=xH42L3WluPU

At about 6:40, he starts dialing in a cylinder he has reversed in his three jaw chuck.

I've never seen a method where one loosens the chuck mounting to dial it in. I thought one tapped on the work to move it relative to the chuck, as opposed to tapping on the chuck to move it relative to the lathe.