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I have spent WAYYYY too much time tweaking DIY styli, and....

Discussion in 'iPad DIY' started by texaslonghorn, Jul 1, 2010.

  1. texaslonghorn
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    texaslonghorn iPF Novice

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    Here are a couple thoughts for anyone interested.

    First - the metal barrel. I had success with two kinds. One was an old metal barrel pen. It was anodized aluminum and I had to remove the anodized finish for proper conductance. The second - far cooler - is an old Xacto knife. Shined it up nicely. Also does a good job of taking those big rubber things for your hand - I hate skinny pens and always add something to give me better grip.

    Second - the tip. This has been driving me nuts. Like many others, I can't stand the big fat tip on commercial styli. So I started to make much smaller tips, internally reinforced with rubber and other resilient yet stiff materials. I made several that looked great, held the tip shape well - but didn't function on the screen. After hours and hours, I think I figured it out - I believe that the stylus must have a minimum surface area to work correctly. I don't know the exact measurement, but it is pretty close to those fat points on commercial styli. So while you may be able to make a slightly smaller tip, you can't go too much smaller or it won't function.

    I have done some research into materials other than the foam and am requesting some samples. While I don't think that the conductivity of the material will change the surface area requirement, I am going to fart around with it anyway.

    I need professional help.....
  2. Matth3w
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    Matth3w iPad Ninja

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    I'm subscribing just to see what you come up with
  3. NumbLock
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    NumbLock iPad Ninja

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    Cool project! Think about conductive foam that they ship microchips in. We vave a ton at work, but our version is kind of crumbly.
  4. texaslonghorn
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    texaslonghorn iPF Novice

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    I am trying to find a suitable alternative to that foam. That is the hard part.
  5. CMFox
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    CMFox iPad Fan

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    Photos of your progress?

    This sounds like fun. Keep spending the time.

    CM
  6. MikesTooLz
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    MikesTooLz Super Moderator Staff Member

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    I just use a finger.
    Its cheaper than anything else and always works.
  7. Linkreincarnate
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    Linkreincarnate iPF Novice

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    You could try some wire glue on various objects. It's definitely conductive but I'm not sure how well it would play with the screen. I'd recommend mixing with a machine for a nice smooth coating. Maybe it's conductive enough to be covered in another material like microfiber and still work?
  8. orisonmarden
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    orisonmarden iPF Novice

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    :shakehand:
  9. snormansell
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    snormansell iPF Noob

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    I read somewhere that electrostatic bags work well. Just roll one up into a thin tube and it works well. I of course was unable to find one to test this with just as soon as I started looking for one...
  10. Linkreincarnate
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    Linkreincarnate iPF Novice

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    Wire glue has been tested and works like a charm. Video proof. Works on thick gloves as well. I used it on a paintbrush. Just pick out any bit that stick out while drying and it is fine for the screen.

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