Iím looking for suggestions for an efficient method for trimming and rounding over 3mm on curved surfaces (ex.: curved display top). We are using "Ultraflex" to go around the relatively small corners. I think it's a PVC/Rubber blend. It goes on nice, but doesn't cut worth a darn.
Tried trim router with follower bearing and it melts and gums up the bearing quickly. I tried a lipping planer, but even it dug in occasionally on that soft material. I tried a stationary trimmer with top and bottom heads set for a 3mm round over, but it tries to cut too much and it chatters, plus the table is too small for a top. For the one or two occasional top, I can't justify a custom dedicated secondary top set up. The best results have been to trim it near flush with a bottom cutting bit in the trim router with a custom offset base. Then I come back with hand tools (sharp chisel, file to round over) but Iím not happy with the results or the efficiency. Thanks for your suggestions.
From contributor J:
Have you tried one of the laminate trim bits with the square bearing? Fastcap?
Contributor G - I have a flat chisel I've done that with, but not with 3mm PVC. I'm afraid I'd peel the banding off before cutting through something that thick. I'll give it a try though.
Contributor P - I have the Betterly catalog and I'll check it out. Again, the problem seems to be this softer material (Ultraflex vs. solid PVC).