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Shadowcast

Turn any picture into a wall lamp. The box's walls are cut so the LED throws your picture as a giant shadow.

1 · Picture

Choose picture
PNG or JPG, or drop / paste it here. A dark shape on a light background works best

Sample: tree

Threshold 128 Smooth edges 1 px Swap dark and light

2 · Shadow on the wall

Shadow width 760 mm

Move ↔ 0 Move ↕ 96

The light shines outward from the box, so every dark shape must reach the box along a straight line from the center. Anything else floats free: it is dropped and shows as light in the preview. Place the box where the shape branches out.

3 · Box

Inside width 110 Inside height 140

LED height from wall 60 mm Wall height 57 mm

Wall thickness 2.0 Detail 0.30 mm

4 · Picture inside the box (optional)

Choose inside picture
Printed as a raised plate on the floor of the box

None

You also need: an 8 mm straw-hat LED, a 2×AAA battery holder with switch, and thin wire.

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