Craft & Design Technology
Blue flower fabrication

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This is really pretty, Mang writes –

“These surface mount LEDs are nice since they aren’t point sources and don’t burn your retinas.”Link & build photos & how-to.

14 thoughts on “Blue flower fabrication

  1. Instead of making two transfers and trying to match them up with registration marks, why not simply mask ALL of the back side of the copper sheet and just etch through from the front? Seems like that would be easier (although perhaps a little slower). You could just paint the back with fingernail polish or something

  2. This is very cool, if I had the materials handy, I might even try making a bouquet like this for my wife for valentines. It may also be interesting to etch a short love poem into the outer edge of the flower, using a fine tip sharpie for a resist.

  3. Yo, yo…. does anyone know what he uses for his power supply? When you take the flower out it dims but lights up when it goes back in the vase?

  4. See, I KNEW someone was going to have to make the requisite Boston reference. You have no idea how close I came with my previous post.

  5. Guero — Masking the whole back would work. It wasn’t that hard to get the two sides to align… probably easier overall than painting the back. I was thinking some kind of adhesive vinyl might work and make it easier to handle the small pieces.

    chaintool — The power supply is a coil of wire being driven with a square wave (generated by a microcontroller and a transistor). The power gets transferred inductively to a similar coil (with a steel bolt inside) on the base of the flower. It works the same way as those rechargeable toothbrushes that are totally sealed and sit in a base to charge. The coil on the flower needs to be inside the coil in the base, so that’s why you get the gradual dimming as you take it out.

    Some more pics:
    power supply (hacked a toothbrush to figure it out, then built my own from scratch)
    finished piece with coils visible

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