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Author Topic: Very compact pen. Alternative push (now with 2nd button) +pics & clip  (Read 3576 times)
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« on: February 18, 2008, 11:17:28 AM »

As i was searching some stuff today, i found a car cigarette lighter recharge cable...A really cheap one for sale for +- 1 euro at dump stores.

Anyway..it was perfect to make into a ledpen, and i used the available mechanism as pushbutton for the led, so in this version..clicking is pushing the pen softly on the surface.

http://www.youtube.com/watch?v=WwIcy4fwzS0







In the last picture the pen with battery and led in place and ready to go.

here some more pictures, now with a button as well.



« Last Edit: February 20, 2008, 01:44:19 AM by pipoxyz » Logged
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« Reply #1 on: February 18, 2008, 12:36:43 PM »

Ingenious Grin Nice work, I like what you've done there.
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« Reply #2 on: February 18, 2008, 01:05:55 PM »

tnx..it was really easy to build as it was a perfect fit from the start Smiley
also, the spot where those metal bending pieces where, now form a perfect sized hole for those very small square buttons you find in radios and stuff. like 4mm2 or so, so the same plug could be used for pens with a button without it becomming ugly as well.
Check this photo..it fits perfectly (allthough atm 2 connections prefent me from fully placing it, but the dimentions are a perfect fit, it even has the same depth as the hole.)

edit.. so i made it and this is how it looks now (as cn be seen in the first post)


also check this perfect fit for the led.


It works pretty good as well with this alternative button,..although it does limit its use to hard surfaces, but at it, it probably works better. It also feels good in the hand (although 1cm more wouldnt have been bad)

The car cigarette plug is a One standard plug (or at least i think it is).. meaning that everyone should get the same perfect fits as i did.
« Last Edit: February 20, 2008, 02:40:36 AM by pipoxyz » Logged
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« Reply #3 on: February 18, 2008, 01:43:50 PM »

..although it does limit its use to hard surfaces
Yeah, as I said in spindoctor's thread, I rear project onto a sheet. I'm looking to find a suitable material that works with rear projection and is solid, a big sheet of plastic or summink. Then I'll definitely be using this technique, as soon as I saw it I thought 'of course', the perfect housing for an irpen.
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« Reply #4 on: February 20, 2008, 01:58:00 AM »

I just noticed that pressing vs clicking makes a huge difference in reflection.

pressing:


clicking:(with the led on the paper, but witthout applying pressure)
« Last Edit: February 20, 2008, 02:00:47 AM by pipoxyz » Logged
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« Reply #5 on: June 04, 2008, 12:05:04 PM »

sorry for the newbie/n00b/whatever question, but...

so... the reflection is smaller with the pen tip "button"? it makes it harder for the wiimote to see it? such questions are relevant for my drawing interests.
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« Reply #6 on: June 04, 2008, 05:22:52 PM »

Good idea! And well documented!!!
Thanks  Grin
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« Reply #7 on: June 24, 2008, 08:15:17 PM »

As i was searching some stuff today, i found a car cigarette lighter recharge cable...A really cheap one for sale for +- 1 euro at dump stores.

Anyway..it was perfect to make into a ledpen, and i used the available mechanism as pushbutton for the led, so in this version..clicking is pushing the pen softly on the surface.

http://www.youtube.com/watch?v=WwIcy4fwzS0


I really like what you have made here.  I would like to duplicate it but am a little confused about the spring area.  Does the spring always touch the battery?  When you push in on the LED, does one of the leads actually push on the positive battery terminal?  And what is the white piece that is inside the spring? 
Sorry for all the questions, but it is a little blurry in the picture and I can't quite make it out.  Thanks!



EDIT: admin was here Wink i added the ending tag for quote as the question disappeared within the text
//UndCon
« Last Edit: June 25, 2008, 03:09:47 AM by UndCon » Logged
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