This was designed to fit a John Lewis Photo Frame & Mount,  4 x 6" (10 x 15cm)

https://www.johnlewis.com/john-lewis-photo-frame-mount/natural/p4287425?size=4-x-6-inch-10-x-15cm

The frame is actually 22.7 x 17.6 x 2cm and the design has clips to hold the frame and the case together using the groves in the frame that normally hold the glass and backplate. This idea could be adapted for other frames 

In addition to the parts on the Project Page: https://github.com/lmarzen/esp32-weather-epd, this requires a selection of m3 screws and heat inserts, along with self tapping screws to hold the electronics in the case. and a 6mm rod for the (optional) desk leg [This can easily be modded for a different leg if required]

It also requires a female USB panel plug to extend the power, I’m using these: https://www.amazon.co.uk/dp/B0CNBKP1BV?ref=ppx_yo2ov_dt_b_fed_asin_title

 I've included an image with the order they fit together, as well images of the front, back and inside.  

The front bevel mount was printed in white to match a plain photo mount, the rest is hidden or at the rear. ( I used light grey)

The fusion file is included, if you want to adjust for other frame sizes (But is a little messy!)