Contour Trimming 3mm Edgebanding
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 G:
Trim flush to face with an old plane iron ground dead flat with a very slight bevel on the underside which is held slightly askew but flat to the surface in order to effectively shear. Then use a laminate trimmer - it works great for me. If you're getting melt-back, then switch to a sharper cutter and increase the feed rate/move a little faster.
From contributor P:
Look for a Betterly PVC Trim Router with a 3MM round over bit. I got mine from a company in Georgia but I can't recall the name. It works great and is made specifically for contours.
From the original questioner:
I haven't tried the square bearing bit yet. I thought we'd be better off with the router base that carries the bearing on an outrigger assembly below the bit. Especially since the banding seems to have a slight crown in the middle.
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).
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