Sanding right up to the fret

[Dave Bagwill]

That transformer runs it up a bit in price; still, not that high. I may just give it a go.

[ken cierp]

I power mine with a PS I removed from an old computer. You can use a car battery charger, or even a battery.

[Dave Bagwill]

Thanks. For now, I just took a 1/4" slice off the end of the fretboard radius block, wrapped some 220 around it, and it worked good enough. A duh moment - something with sharp edges, the same radius as the fretboard, right there the whole time.