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Project: '99-spec style LED tail lights

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Old 02-17-10, 12:16 PM
  #76  
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Old 02-17-10, 12:41 PM
  #77  
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Originally Posted by BlinD26
Mind if I throw my 2 cents in?

I always thought LED tails were a cool idea, especially the direction you are going with them, but my biggest personal complaint with all the kits/services that were out there is, regardless of how they were done, you always saw the LED seperation. There was no smooth 'ring of light' per se...

Something I haven't seen anyone do yet is borrow the concept from 'angel eyes' and implement them into tails. There is a plethera of writeups online on how to make your own rings and lighting elements with LEDS. And the best part? The rings can be sized accordingly for 99 spec lights (brake rings slightly larger then turn rings) and only take 1 or 2 LEDS as apposed to a full boards worth


Thoughts?
I think that would be a cool idea as well. Kinda like what BMW did for the 5 series tail lights:



Last edited by gracer7-rx7; 02-17-10 at 12:43 PM.
Old 02-17-10, 01:37 PM
  #78  
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Originally Posted by Davin
ME LIKE!!

Tom, sorry you don't like this.. but I'm in LOVE LOL! but I think this is just some animation someone did.
Old 02-17-10, 04:19 PM
  #79  
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Originally Posted by gracer7-rx7
Kinda like what BMW did for the 5 series tail lights:
And the 3 series...

Which is funny as the LCI 3 got rid of them altogether in favor of other LEDs...
Old 02-17-10, 09:46 PM
  #80  
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Originally Posted by BlinD26
Mind if I throw my 2 cents in?

I always thought LED tails were a cool idea, especially the direction you are going with them, but my biggest personal complaint with all the kits/services that were out there is, regardless of how they were done, you always saw the LED seperation. There was no smooth 'ring of light' per se...

Something I haven't seen anyone do yet is borrow the concept from 'angel eyes' and implement them into tails. There is a plethera of writeups online on how to make your own rings and lighting elements with LEDS. And the best part? The rings can be sized accordingly for 99 spec lights (brake rings slightly larger then turn rings) and only take 1 or 2 LEDS as apposed to a full boards worth

Thoughts?
yes i actually already looked at those. types of rings. i decided against them because 1: they shine light in all directions (i just want directional light), 2: they have gaps in the rings, and 3: the rings aren't thick enough.

anyway here's some progress. unfortunately i can't find our iron, so i can't make the PCB's tonight.

i did, however, finish redesigning the PCB layouts. i realized that i could get away with far less resistors by wiring up groups of 6-LEDs in series - this mean's i only need ONE resistor for the extra 4 LED's left over (the rings use 64 LED's total).



the inner and outer rings are still independently connected so that means if i want i can have one ring light up all the time and the other come on with the brakes (might be cool...?)



i also decided to pick up some 12v fixed-voltage regulators:


just to test the brightness, i took 6 LEDs and connected them in a series, hooked up to a 12v power source...it was pretty bright. the angle could definitely be wider, but i think i actually might like the effect.

depending on the results of my first prototype, i may make a second version using the surface mount LEDs that David suggested.

hopefully i can find an iron tomorrow so i can make these PCBs!
Attached Thumbnails Project: '99-spec style LED tail lights-led-array.jpg   Project: '99-spec style LED tail lights-new-pcb-design.jpg   Project: '99-spec style LED tail lights-12v-voltage-regulator.jpg  
Old 02-17-10, 10:26 PM
  #81  
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i got something like this from ebay l.e.d. lights for $150dollaz 3 piece i love your mid light to match side light check my pics
Old 02-18-10, 12:33 AM
  #82  
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Now I know why electrical engineering is not my gig. When I got my A&P License, I struggled with this part. Argh... you are doing great though!
Old 02-18-10, 06:49 AM
  #83  
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Originally Posted by Djreact
i got something like this from ebay l.e.d. lights for $150dollaz 3 piece i love your mid light to match side light check my pics
Here is a pic of his lights:



I like what Theorie is doing better - much better.

On another note, now that I see your design and the work involved, I know why I changed my major at Auburn from engineering to the business school!

Regarding the viewing angle on the LEDs, you can still try some wide angle ones in addition to the SMTs to see what works best. I would think once you've got a working design down, trying a few options would be the way to go. And Radio Shack lists the wide angle LEDs as ones they carry in stock.
Old 02-18-10, 01:43 PM
  #84  
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sooo whats a PCB?
Old 02-18-10, 02:23 PM
  #85  
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Originally Posted by FD3S2005
sooo whats a PCB?
Printed circuit board
Old 02-18-10, 03:11 PM
  #86  
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Originally Posted by David Hayes
On another note, now that I see your design and the work involved, I know why I changed my major at Auburn from engineering to the business school!

Regarding the viewing angle on the LEDs, you can still try some wide angle ones in addition to the SMTs to see what works best. I would think once you've got a working design down, trying a few options would be the way to go. And Radio Shack lists the wide angle LEDs as ones they carry in stock.
haha yeah this would be much easier if i had some sort of training in this crap. i went to school for international affairs & economics.
Old 02-18-10, 04:44 PM
  #87  
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Originally Posted by theorie
haha yeah this would be much easier if i had some sort of training in this crap. i went to school for international affairs & economics.
Uh oh:
"Hey let me work on it! I've never seen one of them there rotary engines before!!"
Old 02-18-10, 05:18 PM
  #88  
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Any luck with my oem taillight dimensions?
Old 02-18-10, 06:22 PM
  #89  
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Originally Posted by Alpsta
Any luck with my oem taillight dimensions?
sorry man. i cant seem to find it. goodfellafd3s is bringing me a real '99 spec tail this weekend, so i'll re-do my diagram and send it to you as soon as i've got it.
Old 02-28-10, 08:37 AM
  #90  
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So Tom, are you the proud owner of some bitching LED taillights?, he says waiting excitedly!
Old 02-28-10, 01:25 PM
  #91  
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ok so i guess i'll update.

i still have yet to make the PCB boards as i have been busy out of my mind with work and grad classes...

however i actually came up with a new "plan b" design that uses surface mount led's and a top-secret element that will help eliminate the light gap between the diodes. the "plan b" design will still feature two independently controlled led rings and should produce the same style/effect that i'm going for.

i've also figured out a super easy way to wire up everything by tapping into the stock tail light bulb harnesses. the setup will still allow you to remove the light housings as needed because the wiring will be completely disconnectable. also, this method will allow you to change the style whenever you want just by switching connectors. this means you can have the lights light up like stock 99 circles, or you can have the rings only, or you can have one ring on with the other ring w/ brakes, etc, etc.

i'm flying down to FL on march 13th so i want to have at least one of my prototypes completed before then. hopefully i can unveil the results then, if not sooner.
Old 03-01-10, 08:41 PM
  #92  
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Originally Posted by theorie
yes i actually already looked at those. types of rings. i decided against them because 1: they shine light in all directions (i just want directional light), 2: they have gaps in the rings, and 3: the rings aren't thick enough.
also the light pipes arent bright enough for a stop lamp. this is why the on bmws the light pipes are only for the parking lamps and have directional leds behind them

Originally Posted by theorie
anyway here's some progress. unfortunately i can't find our iron, so i can't make the PCB's tonight.

i did, however, finish redesigning the PCB layouts. i realized that i could get away with far less resistors by wiring up groups of 6-LEDs in series - this mean's i only need ONE resistor for the extra 4 LED's left over (the rings use 64 LED's total).

you are going to blow up a lot of leds if you do this. you need a current limiting resistor for every parallel string.
Old 03-10-10, 03:12 PM
  #93  
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Originally Posted by rockshox
you are going to blow up a lot of leds if you do this. you need a current limiting resistor for every parallel string.
yes i know. i said something about that in a different post.

anyway...an update. my "diffusers" arrived in the mail today. had these custom made. here are the thicker flavor: 80mm OD x 40mm ID for the brake circles & 75mm OD x 35mm ID for the signal circles (1/4" thick acrylic for all).


(yes, they have the protective paper on them still in the above photo)

essentially, these will sit behind the colored insert lenses, helping to diffuse the led light so you don't see the individual led beam shapes.

here's one of the rings with the paper removed. each ring gets the top & bottom surfaces sanded until they are clouded and diffused. i tried it on one of the rings and it really helped to diffuse the light.



i also have a thinner style ring: 80mm OD x 60mm ID for the brake circles & 75mm OD x 55mm ID for the signals:


this gives me some options...

im hoping to have my prototype ready by this weekend. more info/pics soon hopefully
Attached Thumbnails Project: '99-spec style LED tail lights-acrylic-rings.jpg   Project: '99-spec style LED tail lights-clear-ring.jpg   Project: '99-spec style LED tail lights-thin-ring.jpg  
Old 03-10-10, 03:27 PM
  #94  
Please somebody help!!!

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Pictures of the light? How is this all coming together?
Old 03-10-10, 03:33 PM
  #95  
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Originally Posted by NissanConvert
Pictures of the light? How is this all coming together?
oh that will come soon.

bubble gum and zip ties, my friend.
Old 03-10-10, 03:33 PM
  #96  
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Damn those are some sexy hands..... Did Ryan model those for you?!
Old 03-10-10, 03:34 PM
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Now that is a pretty cool idea Tom. Look forward to seeing more!
Old 03-10-10, 08:29 PM
  #98  
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i had a chance to take some better photos with a slightly better camera.







sanded:




you can see the ring when held up to the light, but when re-assembled and the lights are off, the rings will be invisible - they'll look just like normal '99-spec tails until you turn them on.



mmmm...
Attached Thumbnails Project: '99-spec style LED tail lights-dscn0815.jpg   Project: '99-spec style LED tail lights-dscn0816.jpg   Project: '99-spec style LED tail lights-dscn0819.jpg   Project: '99-spec style LED tail lights-dscn0824.jpg   Project: '99-spec style LED tail lights-dscn0828.jpg  

Old 03-10-10, 10:28 PM
  #99  
Please somebody help!!!

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Originally Posted by theorie
oh that will come soon.

bubble gum and zip ties, my friend.
Make sure you use Stride® - The Ridiculously Long Lasting Gum®.

Thanks for the update, I was wondering how you'd get the disks behind the rest of the assembly.
Old 03-12-10, 10:21 PM
  #100  
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so...unfortunately the final parts that i was waiting for DID NOT COME and i have to fly to florida tomorrow afternoon. doubt i'll get them before i leave.

this project is gonna have to be put on hold until i get back next weekend. bummer



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