Introduction: Lumi - Photochromic Dye
Step 1: Material
Lumi set and spray adhesive
Step 2: Material
Turns out none of these are good choices of material for the lumi
They block off very little light, as a result, the pattern is barely visible
They block off very little light, as a result, the pattern is barely visible
Step 3: Setup
Place transparency, object, stencil, etc over surface
Oh it also is a good idea to place a piece of clear acrylic on top to stop the wind from blowing the transparency, stencil, object away
Oh it also is a good idea to place a piece of clear acrylic on top to stop the wind from blowing the transparency, stencil, object away
Step 4: Apply Dye
Apply a layer of the dye
Step 5: Exposure
Let it sit in the sun for 10 min
You will see the color becoming more and more visible
You will see the color becoming more and more visible
Step 6: Rinsing
Try to rinse as much of the dye off as possible
Use detergent will help
Use detergent will help
Step 7: Experiment
3D printed piece
It was pretty solid so it blocked off some of the sunlight. But the result is somewhat visible
It was pretty solid so it blocked off some of the sunlight. But the result is somewhat visible
Step 8: Experiment With Transparency
The key is that the transparencies must adhere to the material (fabric wood etc) otherwise it will not block off all the uv light therefore creating blurry image