Submitted by Wolf Graaf, 30th June 2016:
I started a project which is a first for me. The intention is to turn and carve a bowl which is loosely based on a wave bowl design by Neil Scobie.
As the timber blank had to be mounted off center, it was terribly wobbeling because of the excentrical placement of the blank on the chuck. Having a technical background, I figured that a; counterweight was required.
It is handy that in my shed reasonable pieces of timber don't get cast away. I used a piece of Pine, sawcut to the outside diameter of the chuck plate and screwed it on the plate. Bingo, now I only have to cope with a very minor wobble.
Good polishing is of importance in wood working.As one is always striving for better technique and performance, I was given an Arbortech Contour Sander. Great tool, however the linishing pads come as self adhesive discs. That has the disadvantage of being only once of good use.
There is also the option of punching a hole in the middle of the pad and then bolting it to the rubber pad.The let-down is that I very seldom hit the center and therefore the pad was sitting a bit off-center on the rubber pad.
Therefore I had an idea. By using a 51 mm diameter Forstnerbit, I drilled a recess to about 4 mm deep into a piece of Pine.
Then placing the sand paper pad into the 51 diameter hole, I drill a hole exactly into the centre.