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  1. #1
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    Interesting XML reflector

    If you may remember, a long time ago I have posted in this forum an idea of a possible bike-specific reflector. So, now behold the first result!
    Interesting XML reflector-clipboard01.jpg
    The design goal was to redirect the emitted light from the sky to the ground. As you can see, the goal is almost reached.

    This reflector is for 1 XM-L, the OD is 35mm. It has a 5 deg. hotspot and a 30 deg. beam.
    CNC LED light housing for DIY projects

  2. #2
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    I'm listening!

  3. #3
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    More please
    Animated Gifs
    DIY LED Bike Lights:
    A few Dynamo builds and some Small battery lights

  4. #4
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    Very promising! Waiting for the first beamshots now ...

  5. #5
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    Well, the beamshots will not be very soon. This reflector is in the 3D model stage. Still needs some tuning because the beam is dipped downward, so the lamp will have to be pointed upward by 5-8 degrees.
    CNC LED light housing for DIY projects

  6. #6
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    Interesting XML reflector-beamshape-bw.jpg
    This is a closeup of the beam simulation in a more traditional BW visualisation.

    Good for testing your monitor Actually there is light in the upper part.
    CNC LED light housing for DIY projects

  7. #7
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    Beamshot time!
    The prototype reflector was printed from ABS on a Replicator 2, smoothed with acetone and vacuum coated with aluminium. The result is not comparable to a factory-made reflector.

    Warm white Cree XM-L2 on the prototype (2 amps), cool white XM-L on a C2 OP reflector flashlight (1.5 amps).










    Definitely not enough throw.
    CNC LED light housing for DIY projects

  8. #8
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    Maybe low on throw, but looks promising for sure. Are you planning on selling the reflectors or will they be part of a complete light?

    I just had a thought that since you can 3d print reflectors, would it be possible to bounce the light back down within the reflector, rather than tilting the LED base up? I'm thinking of something with a flattened top that slopes downward to the front of the reflector. Something like that would be difficult to machine (in one piece), but easy with a 3d printer.

  9. #9
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    Well, this is a prototype for making a regular reflector. In a 3D print the accuracy is 100 microns whereas in a factory mold the accuracy is 1 micron. Also, vacuum coating is not accessible for DIY.

    This reflector is for general use, not for a specific light.
    CNC LED light housing for DIY projects

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