"Montblack" wrote

I had one of those as a kid in the early 70's. It had a home out in the
garage.

...we called it a rock tumbler.

Might be a good idea to hold the plywood down, here and there! g

I too, had a rock tumbler. Takes way too long. I seem to remember putting
a bigger motor on it, or changing the drive ratio, to speed it up a "little"
bit. I had to put the right kind of rocks in it, or they could start a
fire! ;-))
--
Jim in NC