Choc spacing for plate

Hi all,

I want to create a custom computer keyboard plate that is choc-switch spaced.

Are there templates for the slot that a choc switch would clip into (correct width, height & any angles ) that I could incorporate into a keyboard case layout? Plan would likely be to print a blank pcb with the cutouts, so something I could pull into KiCad would be ideal.

Note: cross-posted with slight alterations to 3DPrinting.