On Wed, 18 Jan 2006 11:08:01 -0800, Jim Stewart
wrote:

I have a piece of CRS, about a foot square
and 1" thick. I want to cut out 2 disks about
4" in diameter. I will ultimately turn and
finish them into flywheels.

Given my tools, here are my options:

1. Rough out the disk with the gas axe,
grind away kerf with angle grinder,
turn on lathe.

2. Mount plate on rotary table, taking small
passes mill out disk, finish on lathe.

3. Try to cut out disk with sabre saw,
finish on lathe. Painful just thinking
about it...

Any other options or suggestions?

Circles out of plate is something I've done occasionally.
I use a shop made circle device on the head of the c-torch.
It's a modified cable clamp and some stock and rod. Center
drill, set the radius and go. If everything is adjusted perfect the
results are sweet. Finish on the lathe with a stub arbor.

DE


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