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I'm doing my first thermoform job. Two of the tops with 3" formed edges have cracks in them. The material is 1/2" and I'm rabetting 3/4 x 5/16", then applying my edge and routing the remaining 1/4" overhang flush. The clamping force is creating the cracks in the top rabetted area.
I'm not too versed in solid surface repair. Can the cracks be filled? The are very thin. Or will I need to route out a section and put a new piece in?
Rout it out an put in a new piece. What are you clamping with that would apply enough force to crack it?
A screw clamp. This is our first go round with thermoformed edges. The formed pieces don't end up perfectly flat, so clamping is required to get a tight fit.
On a previous thread someone suggested doing a rabbet and leaving just 2mm. My test piece with 2mm cracked, so for the real tops I left 3/16", but even that cracked in several places.
I'm not sure where to route out for a new piece here. Any suggestions?
SS isn't designed to "clamp to fit" it needs to be machined to fit. The only clamps you'd use would be a spring clamp and these wouldn't crack it. High pressure clamping, like from a screw clamp, would tend to starve the glue line. There are online videos showing how it is done. You might call your supplier and ask for some training. Tom Pinske would also be a good resource.