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02-17-2009, 11:41 AM
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Join Date: Sep 2006
Location: Stockton, CA
Posts: 1,207
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I bought 1sq ft. I'd recommend 2, though. If I remember correctly, there wasn't much difference price-wise.
Quote:
Originally Posted by Boxcars
Say, how much of the plexi should I order? I'm at work and can't measure the wingtip.
Thanks!
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02-23-2009, 03:35 PM
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Join Date: May 2005
Location: Tuttle, Oklahoma
Posts: 2,563
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Quote:
Originally Posted by petehowell
Hello - I've been gettting quite a few PMs asking about the materials used to make the LED nav lights. Here is the scoop:
Here are the resistors you need: link
here are the Green LEDS: (use cyan, not green) link
here are the Red LEDs: link
The luxeons should be mounted to an AL sheet with heat conducting, but electrically insulating compound: link
Mirrored Plexi can be found here: link
Here is the schematic:
More construction pics here
Questions:
Do they meet the FARs? - No idea - but they are crazy bright
Do they get too hot? - Mine have not - I run them whenever I fly - no issues in almost 400 hrs - the resistor tends to underdrive the LEDs. The resistor gets warm, but not hot.
Total cost? - LED prices seem to vary a bunch - I have about $60-$70 in both sides of mine.
My standard 1 beer fee applies - payable in the upper midwest (during the summer)........
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Pete,
I have ordered the parts to roll my own LED lights from your list on this post. I should receive these parts soon and will be starting on them when they arrive. I am interested in LED strobes also. Do you have any ideas on being able to make our own LED strobes? I would like to be able to avoid dealing with shielded cable and radio interference issues with traditional strobe power supplies. Any information you may have is appreciated.
Steve
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02-23-2009, 05:37 PM
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Join Date: Jan 2005
Location: MN
Posts: 2,269
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No Strobe Info
Sorry Steve,
I don't have any info on LED strobes. I run regular strobes and do not have any noise from them. I might just be lucky.
__________________
Cheers,
Pete
Amateur Plane - RV-9A N789PH - 2350+ Hrs
Amateur Radio - KD0CVN
Doggies Delivered - 25+
St. Paul, MN
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02-23-2009, 08:24 PM
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Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,196
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Quote:
Originally Posted by RVbySDI
Pete,
I am interested in LED strobes also. Do you have any ideas on being able to make our own LED strobes?
Steve
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Steve,
I have the same interest. I've been looking at the BuckPuck drivers. (Datasheet here) and available from AeroElectric (here). If you look towards the bottom of the data sheet, there is an interface to facilitate strobing the LEDs. All that is is needed is a circuit to generate 5v to initiate turning the LEDs on in a standard strobe flash pattern.
Perhaps there is an EE on VAF that may want contribute with a simple circuit to handle this function? This circuit in conjunction with Bob Nuckolls mods to minimize RF may be a solution. You would have to use the model of the BuckPuck that allows external control, which isn't the version that Bob supplies.
bob
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02-24-2009, 06:26 AM
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Join Date: Feb 2005
Location: N Mn
Posts: 299
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I used a Power Puck, 4 Luxeon stars per side. From Led Supply.
No caps, No noise, No problems, Just lucky?
__________________
Frank Karasti
Hibbing, Mn
RV-9A
Flying--------->-
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02-24-2009, 08:07 AM
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Join Date: May 2005
Location: Tuttle, Oklahoma
Posts: 2,563
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Quote:
Originally Posted by FrankK90989
I used a Power Puck, 4 Luxeon stars per side. From Led Supply.
No caps, No noise, No problems, Just lucky?
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Do you have any pics of this setup? Are you saying the "Power Puck" came from Led Supply or did everything come from there?
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03-02-2009, 02:09 PM
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Join Date: May 2005
Location: Tuttle, Oklahoma
Posts: 2,563
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Bumping post!
Quote:
Originally Posted by FrankK90989
I used a Power Puck, 4 Luxeon stars per side. From Led Supply.
No caps, No noise, No problems, Just lucky?
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I am bumping this post up again hoping you or others may see it and reply.
Frank - Can you tell me the model number and voltage used for the Buck Puck you used for your setup? I am looking at the 3023-D-N-1000 in each wing tip. Are these similar to what you used? Did you just feed a 12V power to the puck or were there any other wiring/circuit requirements? I have several questions about the wiring of these. If you or anyone else may be able to discuss this please post here or PM me.
Thanks,
Steve
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03-02-2009, 05:10 PM
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Join Date: Feb 2005
Location: N Mn
Posts: 299
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Sorry Steve,
Must be sleeping at the switch??
Every thing was ordered 11/19/07 from LED supply, Might be a little dated?
Power puck is 700 MA LED drive module, code is 02008B-700. And the stars are K2 star low current 4 red, 4 cyan, I used green but current wisdom is that cyan is the better color.
They are wired in series, grounded locally. The Power puck is mounted to the last tip rib.
ymmv.
__________________
Frank Karasti
Hibbing, Mn
RV-9A
Flying--------->-
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03-03-2009, 08:05 AM
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Join Date: May 2005
Location: Tuttle, Oklahoma
Posts: 2,563
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Quote:
Originally Posted by FrankK90989
Sorry Steve,
Must be sleeping at the switch??
Every thing was ordered 11/19/07 from LED supply, Might be a little dated?
Power puck is 700 MA LED drive module, code is 02008B-700. And the stars are K2 star low current 4 red, 4 cyan, I used green but current wisdom is that cyan is the better color.
They are wired in series, grounded locally. The Power puck is mounted to the last tip rib.
ymmv.
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Frank,
Thanks for the info. I am a little confused though.
I have read Pete Howell's post on building the nav lights and had plans to do so according to his parts list. I have ordered everything Pete had listed on his post above and am working on the installation of those lights now. His list did not call for any Power Puck for that setup.
Your list of items sounds very familiar to Pete's list of items except for the Power Puck. Is your setup for Nav lights or for Strobes?
If I set my nav lights up as Pete suggests I was hopeful to setup a separate system for LED strobes in the same location in the wingtips using white LED's. From what I can read on the description of the Power Puck it is supposed to be able to strobe the LED's but I am not sure if all I have to do is wire 12V power to the puck and it has a switch or something to turn on the strobe functionality or if there is some type of circuit design needed before the power feeds into the puck.
Any chance of seeing a pic of your setup?
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03-03-2009, 08:31 AM
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Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,196
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Quote:
Originally Posted by RVbySDI
Frank,
From what I can read on the description of the Power Puck it is supposed to be able to strobe the LED's but I am not sure if all I have to do is wire 12V power to the puck and it has a switch or something to turn on the strobe functionality or if there is some type of circuit design needed before the power feeds into the puck.
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Steve,
There is a version of the PowerPuck that allows external control. However, the strobe capability is not a part of the PowerPuck. You have to add a 5v triggering circuit for the strobe timing.
While there has been [FONT='Calibri','sans-serif']success [/font]with those not using the PowerPuck, I believe the PowerPuck is a more elegant solution. Is it better, probably. How much better, you'll have to make that determination.
Also, Bob Nuckolls has designed some additional filters to guarantee that there is minimal RF interference. You read more on his web site.
bob
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