Reply by Michael Murphy

I agree with Closetguy, 1/2” is too wide a blade. Tension and tracking and a nice sharp blade are the key to getting that to work. Try adjusting the tracking slightly and see if it improves. Since the top wheel is crowned, where the blade runs over the wheel determines how parallel it runs in relation to the edge of the table.

I have used a circle jig lots of times on my PM 14”. Smaller radii too.

-- Michael Murphy, Woodland, CA.