Lithophane frame with back light.
My frame is painted satin black but can of course be printed i preferred color. If the back cover is printed in white, it will let light through and light up the background.

4:3 version will fit 140x105mm picture
16:9 version will fit 150x85mm picture

I use M3 knurl insert nut (use a soldering iron to "melt" them in place) in combination with M3x12mm countersunk screw, but a self tapping screw will also do the job.

Glue picture and support feet in place.

Image to lithophane converter:
[http://3dp.rocks/lithophane/](http://3dp.rocks/lithophane/)

In the converter; adjust the image settings to "Positive image"
If your picture is 16:9 ratio, use 150 as maximum size in model settings.
If your picture is 4:3 ratio, use 140 as maximum size in model settings.

Link to led light:
[https://www.ebay.com/itm/184407851854](https://www.ebay.com/itm/184407851854)
[https://www.amazon.co.uk/SODIAL-6-LED-Night-Soshine-Dimmer/dp/B0725CP1FF](https://www.amazon.co.uk/SODIAL-6-LED-Night-Soshine-Dimmer/dp/B0725CP1FF)