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Really Big Alarm Clocks

 
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Turd
HG Ruler


Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Thu Oct 11, 2007 3:35 pm    Post subject: Really Big Alarm Clocks Reply with quote

After making this large seven segment display I decided to make something better so I made two really big alarm clocks Very Happy
Oh, and a three digit seven seg. display (actually 8 segment) but I haven't finished it yet.


My camera sucks BTW. They look a lot better then the crappy pic Wink

]My uncle made the frames and cut the plexiglass.

I started by buying the LEDs and the alarm clocks.
I cut the tops off of the LEDs and filed them so that they would be diffused. (pic)
Using a home made blade I cut out the segments after marking them out with a stencil. (pic 1, pic 2, pic 3)
A piece of copper pipe to cut out the circles. (pic)
Then marked out where to put the LEDs. (pic 1, pic 2)
I bent the leads and glued the LEDs down. (pic)
Soldered wires from the LEDs to the alarm clock circuit board. (pic 1, pic 2)
I had to spray paint the styrofoam black because the light was leaking from one segment to another. (pic 1, pic 2)
With my home made blade I cut out two layers of grocery bag and two layers of translucent film, the kind used for rapping easter baskets. (pic 1, pic 2)
Here you can see the wires going out to the buttons in the back, the alarm on/off switch, battery backup clip, piezo element, transformer and circuit board. (pic)
More crappy pics:
Pic 1
Pic 2
Pic 3
Pic 4


eric
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Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Thu Oct 11, 2007 9:44 pm    Post subject: Reply with quote

Wow, those are some big clocks! Great job!
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Turd
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Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Fri Oct 12, 2007 12:45 pm    Post subject: Reply with quote

Thanks Very Happy


eric
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Project_Nightmare
HG Master


Joined: 12 Oct 2007
Posts: 119
Location: Gig Harbor, WA

PostPosted: Fri Oct 12, 2007 3:04 pm    Post subject: Reply with quote

Just a tip so it looks nicer with the wiring, tear apart some ribbon cable from an unused computer and solder to that, I'm not sure if it's harder to do (I haven't tried it yet Confused ), but it looks a lot nicer than a bunch of jumbled wires Cool

BTW: Love the mood Twisted Evil Hopefully if i do this, the diffused LEDs I make wouldn't explode Confused
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Turd
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Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Fri Oct 12, 2007 3:53 pm    Post subject: Reply with quote

Good idea but I used that wire because it's pre-tinned which made it easy to use Very Happy


eric
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Turd
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Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Mon Oct 15, 2007 11:36 pm    Post subject: Reply with quote

Heres some pics and a video of my big three digit eight segment display Very Happy


Pic 1
Pic 2
Pic 3
Pic 4
Pic 5
Video


eric
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Turd
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Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Tue Oct 16, 2007 10:26 pm    Post subject: Reply with quote

Heres a video of it cycling through the alphabet and numbers.
Some of the characters suck pretty hard but what ever, most are ok Very Happy


eric
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Rosadao
Newbie


Joined: 19 Oct 2007
Posts: 3

PostPosted: Fri Oct 19, 2007 12:43 pm    Post subject: Nice Reply with quote

your clock is awsome
i want to make one too
how did u connect the LEDs to the original alarm clock?
whats translucent film? (english is not my native language...)
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Project_Nightmare
HG Master


Joined: 12 Oct 2007
Posts: 119
Location: Gig Harbor, WA

PostPosted: Fri Oct 19, 2007 1:31 pm    Post subject: Reply with quote

I think he did it by testing each lead. I opened a clock also and the display had 16 connections. I didn't find an idenification number on it so i couldn't reference it online.

I'm not so sure what translucent film is, but I think it's tissue paper or some thin material that lets some light come through that isn't transparent (like glass).
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Turd
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Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Fri Oct 19, 2007 2:06 pm    Post subject: Reply with quote

To figure out how to connect the LEDs I removed the white plastic face off of the screen to see how they were arranged. Be careful when doing this if you want to save the screen for later use because the LEDs are exposed and fragile.



The translucent film is just clear blue plastic "rapping paper":




eric
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Rosadao
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Joined: 19 Oct 2007
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PostPosted: Mon Oct 22, 2007 10:38 am    Post subject: Reply with quote

just by curiosity...
what are the dimensions of the clock?
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Turd
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Joined: 18 Aug 2007
Posts: 274
Location: Saskatchewan, Canada

PostPosted: Mon Oct 22, 2007 11:26 am    Post subject: Reply with quote

The clocks are 8 x 17 inches and the three digit display is 8 x 11 3/4 inches.


eric
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