A frame for a 130x170 lithophane made with https://lithophanemaker.com/Framed%20Lithophane.html

Parameters

Frame Options: Frame Only Lithophane Resolution: 0.2 Base Length: 130 Base Width: 7.5 Base Height: 7.5 Overhang Angle: 60 Maximum Thickness: 3.0 Minimum Thickness: 0.6 Height: 170 Support Thickness: 2 Support Angle: 75 X Shift: 0.5 Y Shift: 0.5 Rectangle Scale: 1.0 Crop?: Yes

Polishing

I used an USB led strip and some white paper