Each plate should be something like 12 cm x 8.5 cm.

Each plate should be something like 12 cm x 8.5 cm.

I actually already have a set of (broken) acrylic plates that measure 116mm wide,
but that's not super exact, because my measurements seem to drift by 0.5mm or so
each time I measure. I figured I'd get as close to a "true" number as possible, since
the dimensions need to pretty exact for switches to fit correctly.

The only really important measurement is that the holes for the switches should be 14x14 ±0.05 mm.

See https://matt3o.com/anatomy-of-a-keyboard/

I'm not sure how to use vector editing programs to determine what I need to set the overall width here to based off the measurement of 14mm key switch cutouts.

Edit: Just put in an order with the dimensions of 116.3mm x 174.1mm x 1.5mm and it's set to arrive in late July. I'll update this issue with the results and a PR if it works out.

Just got the plates I ordered with the above dimensions and everything fits.

Edit: Just put in an order with the dimensions of 116.3mm x 174.1mm x 1.5mm and it's set to arrive in late July. I'll update this issue with the results and a PR if it works out.

Shouldn't it be 3 mm thick?

For acrylic, yes. I went with metal, so 1.5 mm was perfect. Since the guide mentioned acrylic, my PR has 3 mm.

I just received 116.3mm x 174.1mm x 3.2mm maple plates from Ponoko and can confirm that everything fits together perfectly.

@nicinabox do you think we can get this closed out and have #40 merged in ?