How did you mount on your lathe?
Not very well since it escaped and went berserk after bouncing off the top of my face shield.
Sent from my iPad using
Penturners.org mobile app
How about an egg turning chuck. It can be modified to suit your design. Not my video but he has done some cool stuff. Warning no pens!
https://www.youtube.com/watch?v=3VHZgrkwugY
That's slick, I'll be in the plumbing section tomorrow morning.
Here is what I ended up with.
2" thick face plate mounted on a 1x8 nylock nut. Nylock part removed. It's recessed and epoxied. The locking nuts are tall enough that they don't bottom out. No,shimming required.
Cap was made from 1/2" ish Baltic birch, screwed to the faceplate for drilling.
I drilled a 2" hole though the assembly to seat the ball.
The Baltic birch was then drilled to 2 1/8" to allow more exposure of the ball.
Drilling this way centers the ball so you drill top dead center providing you drill with the lathe.
This picture shows the ball getting the lid cut. The point of the live center is marking out my 1/4" drill spot after it's separated. The Baltic birch top or cap is still screwed on.
This picture shows the ball held by the cap and some 2" screws. I would recommend highly that shorter ones are not used. Those balls are hard and run around a long time when they get loose.
I did the bottom with a scroll chuck reversed into the hole after I finished hollowing it.
The material turns easy if you know how to sharpen tools. You don't cut very much before you need to sharpen.
Holding a slippery, perfectly round object is a fun challenge. Once you start you need to figure out how to dismount and remount the round ball in the same place. I found that to be very challenging.
The numbers are right side up and upside down on the balls I have. I'm not a pool player so that might be normal. When using them as a reference it can throw you. It's round, both sides look the same but ones upside down. Mark one with a sharpie.
I cut my lid with no thought on how to finish it. In hindsight I should have planned that out first.
They polish up pretty easy with the white stuff and a buffer.
Sent from my iPad using
Penturners.org mobile app