All of the original files I printed and measured are from https://www.thingiverse.com/thing:4850204 credit to RonnieG303
I rebuilt all of the files from scratch in Tinkercad off measurements from printed files and his original gaps for wood and acrylic/glass. The dimensions are not exactly the same as his so don't print thinking they're an exact match.
The gap size is 3.48mm for the wood pieces and 3.05mm for acrylic/glass. This should be basically the same as the original pieces.
I made all the panel tabs thicker because I want to use actual glass and therefore need to handle more weight.
The author remixed this model.