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 Post subject: Re: Open House Sign
PostPosted: Mon Jun 13, 2011 10:21 pm 
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Joined: Tue Apr 06, 2010 10:12 pm
Posts: 750
It's getting very close, I finished cutting the 3.5" letters, wired up 3 of the LED strips and gave the edge a quick sand. I think if we can get the edge buffed up nicely it should work quite well. My camera doesn't deal with the extreme contrast very well, but you get the idea.

Attachment:
HF_in_plex_complete.jpg
HF_in_plex_complete.jpg [ 24.14 KiB | Viewed 1875 times ]


Next steps edge buffing and getting the strips in the channel, without shorting anything out. I'll work on cutting the companion www.tcmaker.org

This is currently in the classroom hooked to a power supply if you want to check it out in person, be gentle.

Pete


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 Post subject: Re: Open House Sign
PostPosted: Mon Jun 13, 2011 11:05 pm 
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Joined: Sat Jul 17, 2010 5:13 pm
Posts: 246
Location: Minneapolis, MN
Lookin' good, Pete!

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If it ain't broke, your version is outdated.


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 Post subject: Re: Open House Sign
PostPosted: Tue Jun 14, 2011 3:33 pm 
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Joined: Wed Jan 14, 2009 10:06 am
Posts: 1219
Location: NE Minneapolis
very pretty.


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 Post subject: Re: Open House Sign
PostPosted: Wed Jun 15, 2011 8:42 am 
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Joined: Tue Apr 06, 2010 10:12 pm
Posts: 750
Not much progress, I stopped in since my painting got rained out, I got the edge buffed up, which seems to work nicely, (light touch and keep moving) but one of the wires to one of the LED strip had been broken, and even after I reconnected it I get only intermittent light out of the strip, the right most on the table, anyone wants to look at it.

insulating the channel, mounting the LED strips, and finding the production power supply (24VDC low current). Would be the next steps.

I'm thinking light up bumper stickers might be next!
, but 12V is problematic.
[Maker, I Hack, Hacker, TC Maker] would all probably work with one 12" LED strip, anyone got a good DC voltage doubler? I think "Getting Started in Electronics" has one, I'll have to check.

Pete


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 Post subject: Re: Open House Sign
PostPosted: Wed Jun 15, 2011 9:49 am 
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Joined: Tue Apr 06, 2010 10:12 pm
Posts: 750
On the 12VDC power / bumper sticker thought.

Any geeks want to check this out and let me know if they think it will work, I believe a single strip draws only a few 100 milliamps. (.015-.020) on the bench supply if I'm remebering correctly.

Circuit wise figure 19 on page 10 is about the simplest circuit I could find. I'd love to get comments from the hardcore electronics geeks. I'm thinking the ICL7660A part as it allows for 12V input, do Cars tend to be a bit higher than that? I haven't put a meter on one lately.

http://www.intersil.com/data/fn/fn3072.pdf

Pete

[Updated - move comments to new "Portable powered / bumper sticker signage" thread]


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 Post subject: Re: Open House Sign
PostPosted: Wed Jun 15, 2011 8:56 pm 
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Joined: Mon Jun 22, 2009 1:41 pm
Posts: 533
Location: Northwest Burbs
The sign looks wonderful, and it was fun to see things evolve and transform as we were standing out front seeing what it looked like.


Nice job on the Carving / Concept OttoPM, and as always there was a group of others that have been involved in the process that shows what our space brings to our world. Ideas, and solutions just kept on flowing, this is why we needed this space, was to allow creativity, talent and process to flow.


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