SplinterGroup
 commented about 1 hour ago
I like your thinking!
a "V" bit might help. just cut deep enough to heavily score the veneer (but it'd be a pain to get the ID/OD accurate).
Small bit may be good at high rpms, probably no top caul?
maybe even masonite/thin mdf to avoid slivers and get fine dust instead.
I do plan to try without the caul.  I think the main issue will be keeping the veneer from flapping around while being cut.  My current plan is to cut a quadrant, tape over the cut portion, then cut the next quadrant, tape, etc. until I've cut all the way around.


 Ron Stewart
 commented about 1 hour ago
That sounds like quite an ordeal. The results are good, though.

What does the business end of that circle cutting tool look like? Is is a blade (like the tip of an X-Acto knife) or a small rotary blade?
It's a small rotary cutter, which was my main reason for choosing this particular tool.  It's better at cutting clean and not tracking with the grain as a straight cutter tends to do.