Spectacle-mounted Laser Pointer for Persons With Locomotor Disabilities

People with severe locomotor disabilities like those caused by cerebral palsy often have complex communication needs. They may be required to use boards with the alphabet or commonly used words printed on them to aid in communication. However, many may not be able to effectively gesture at their chosen symbols due to limitations in their motor abilities.

A laser pointer can be used by those with a somewhat fine neck control to gesture at symbols or objects of their choosing. The following instructable will teach you to make a simple, cheap laser pointer that can be clipped onto the bridge of a spectacle.

Step 1: Materials & Tools

    Materials:

    1. LED laser x1
    2. 1.5V button cell battery x2
    3. A small wooden peg (available at craft supplies) x1
    4. The outer casing laser cut out of 210gsm(approx) card stock or ivory paper (laser cutting file attached)

    Tools:

    1. Tape
    2. Wire cutter/stripper

    Laser Poiner final.dxf

    Step 2: Prep the Laser Wires

    Using a wire cutter/stripper, snip the wire to about 2cm in length leaving 1cm of wiring exposed.

    Step 3: Fold the Casing

    Fold the casing along the scores.

    Step 4: Tape the Wires

    Tape the wires of the laser to the inner sides of the casing as shown.

    Step 5: Paste the Tabs

    Fold in the model and paste all tabs using PVA glue.

    Step 6: Paste to Peg

    Paste the entire model to the wooden peg.

    Step 7: Insert Button Cell Batteries

    Insert the button cell batteries through the opening and shut the flap. Remember to orient the positive side of the batteries to the red wire.

    Step 8: It's Now Ready to Use!

    To shut the laser, the batteries need to be pulled out.

    Step 9: TL;DR

    Recap diagram.

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      10 Discussions

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      gm280

      2 months ago

      This isn't going to make you cross-eyed like the glass on the "jerk" is it? lol

      7 replies
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      danialsagm280

      Reply 2 months ago

      I think its more about how far is the object, so if the object is not closer than 15-20 cm to your eyes, you have nothing to be worried about

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      IndrayudhSgm280

      Reply 2 months ago

      I have tested it at a local school for students with special needs. All feedback indicated that a centrally positioned laser allowed for greater comfort and accuracy when pointing. I hope that answers your query :)

      1
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      gm280IndrayudhS

      Reply 8 weeks ago

      Please don't take my comment as anything but trying to make a funny comparison to a older movie.

      If this can help such people, I applaud your efforts and project posting. It could even be made a lot smaller and still function as you want it too. They make different size LEDs that some are so small you have to use a magnifying glasses yourself to attach them to the power supply. And they can easily point to things thaqt close without problems. Thumbs Up to you and your project...

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      IndrayudhSgm280

      Reply 8 weeks ago

      Ah! Thanks for heads up. The local store didn't have many options, might have to look online. I was also aiming to keep the materials as easily procurable as possible so went ahead with what was at hand.
      And no worries, no offense taken (still don't get the reference though :P)

      1
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      gm280IndrayudhS

      Reply 8 weeks ago

      If you've ever seen the movie "The Jerk", Steve Martin invented a pair of glasses called the Opti-Grab to help keep them on their face. But the addition to the glasses made the customers go cross-eyed. And that was what I was referencing about as a joke. That's all

      0
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      IndrayudhSgm280

      Reply 8 weeks ago

      Haha, I see. I am now intrigued enough to check it out sometime.