I have been working a lot with a laser cutter lately, and I made a few designs myself, proud as can be, and put them together.

The designs consisted of three boxes to form a case. Box A the interior box which slides tight as a glove into Box B but extends above it, and Box C which has the same dimensions as Box B, which slips over the extended section of Box A, to form a whole case.

The box https://imgur.com/a/eJd5kNR

The problem is, I’ve found that the lid quickly warps, so it never fits flush after a day or so, and given this is laser precise, I know it’s not my cuts.

I would love to know why this is happening, if not how to fix it.

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