Step 21: The tool rest
After a little experiment with a piece of channel clamped to the workbench, the limitations of that approach became apparent. Namely, it could not be moved in close enough to the wood - you always want the tool rest to be as close to the wood as possible without it catching when the wood spins.
What I needed was a banjo. That's right, a BANJO, a piece that fits onto the bed and supports the actual rest. Bring forth a scrap bike frame, an angle grinder, and I was on my way (see pics)...
Something reasonably rigid that swivels and can be moved towards and away from the wood and be locked in place, and that has something that the gouge can slide along, side to side.