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A burl turning design question

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A burl turning design question

#1

A burl turning design question

Mark Wollschlager

I am in the process of making ( for the first time ) a fully natural bottom, flat topped red mallee burl with several 'bowl' depressions in the top.

Mounting was fun and I have flattened the top.

The next steps have me scratching my head a bit.

Should I finish sand the top before proceeding to create the first 'bowl'?

It seems the best way to maintain a crisp edge on the depression.

Then finish that 'bowl', then move the center and create the next one and so on.

I envision 3 bowls.

I know there is no escape from hand sanding and cleanup. I should be able to remount on any of the centers. I just don't want to get too far and then give myself a concussion from too many facepalms. :)

Re: A burl turning design question

#2

I suggest that you sand the flat ......

JamieDonaldson

...top before turning the bowls if keeping crisp edges is a goal. If sanded after turning bowls the edges will probably be rounded over, and it will be very difficult to maintain a flat surface when sanding discs skip over the bowls..

Re: A burl turning design question

#3

Lyle Jamieson

Re: A burl turning design question

Lyle Jamieson

Yes, there will be a bunch of sanding with the lathe off. I did some of those years ago with the bowls intersecting. Really great exercise in multi-axis work. This kind of thing was a precursor of my torso figures.

Re: A burl turning design question

#4

Re: A burl turning design question

Don Stephan

How will you be mounting the burl to turn the different bowls?

Re: A burl turning design question

#5

Re: A burl turning design question

Mark Wollschlager

It is currently mounted on a maple and plywood disk on a glaser screw chuck.

Lots of hot melt and wedges.

I can drill a new hole in the maple disk and get a new center.

The first new center will be about an inch off the current one, which might be too far.

I will find out pretty quickly.

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