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> HID headlights in the pods for Neo914, Pop-up headlights are not in the plans..
Dr. Roger
post Sep 15 2005, 12:47 AM
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WOW.

Heck yea', Felix. Signal light in it too? Oh yea'... (IMG:http://www.914world.com/bbs2/html/emoticons/aktion035.gif)
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porsche944Turbo
post Sep 15 2005, 12:49 AM
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Hey felix, out of curiosity, is your last name Zuniga
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Andyrew
post Sep 15 2005, 12:53 AM
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sweet! One is cool... I'd design for two...

but if one works, then heck. Lighter!!!

lol

keep us POSTED.

Andrew
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porsche944Turbo
post Sep 15 2005, 01:01 AM
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hey andrew, is your friend's Felix's last name zuniga?
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neo914-6
post Sep 15 2005, 01:04 AM
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QUOTE (jonwatts @ Sep 14 2005, 10:27 PM)
QUOTE (Neo914-6 @ Sep 14 2005, 11:07 PM)
QUOTE (jonwatts @ Sep 14 2005, 09:22 PM)
Right, but do they get hot?

I'm not following your questions, all light has heat (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif)

Well, you mentioned a few times that these were sealed units like it shouldn't matter how close the lens is to the cover you're trying to make. I'm thinking that they might throw off a lot of heat and that's why cars tend to not have them right up against the cover.

But really all this is bench racing that is keeping your from making any real progress. I sincerely suggest you stop listening to us (but please keep posting the updates!) (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)

I appreciate the questions and ideas, I must not be clear enough.

Here's some specs:

The Hella Micro DE Xenon Driving Light offers the benefits from Xenon lighting technology in the smallest possible design. This auxiliary driving lamp uses a Xenon bulb mounted in an extremely small, sturdy and temperature resistant magnesium housing with a Magnesium FF reflector that virtually guarantees optimal light distribution. With high light output for more vision and additional range, the Micro DE auxiliary driving lamp shines a light color similar to daylight to help provide the greatest possible safety during night travel. Lens is tempered glass.

DE light technology
The DE (triple-axle ellipsoid) light technology’s principle is similar to that used in a slide projector. An ellipsoid as a reflector directs the light to a focusing lens that bundles it and projects it onto the road. A shield positioned between the reflector and the lens provides the prescribed cutoff. DE headlamps, a Hella innovation, are low in dazzle and are therefore ideal for low-beam and fog lamp use. Advantages in comparison with typical parabolic headlamps: Smaller dimensions, almost twice the light output, clear cutoff, and hardly any scatter loss.

I realize I'm "pushing" them for primary headlights...
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Andyrew
post Sep 15 2005, 01:12 AM
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I dont think so 944turbo....

but yet, I dont know his last name (at least I dont think I do)

Andrew
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jonwatts
post Sep 15 2005, 01:14 AM
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Unger
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neo914-6
post Sep 15 2005, 01:15 AM
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QUOTE (porsche944Turbo @ Sep 14 2005, 11:01 PM)
hey andrew, is your friend's Felix's last name zuniga?

After another member's harassment problems I've stopped posting my last name but no it's not Zuniga (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) ...unless you are holding a fortune for him/me. (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)
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redshift
post Sep 15 2005, 01:16 AM
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QUOTE (Graphikhaus @ Sep 15 2005, 01:30 AM)


Big Doug

I'll be damned! That is elegant, at least for a couple trys.

Congrats! You have clues!



M
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Graphikhaus
post Sep 15 2005, 04:03 AM
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QUOTE (Neo914-6 @ Sep 15 2005, 01:13 AM)
QUOTE (Graphikhaus @ Sep 14 2005, 09:30 PM)
Low refraction, great clarity, (88% @ .125" thick), UV stable, easily glued, can be heat formed at around 350°F, soft enough to give without breaking.

It occured to me that the lense shape is roughly elliptical and an ellipse can be sliced out of a curved tube. I don't have the ideal diameter figured out yet, but I would guess around 3.5" OD, .125" wall Lexan tube. Cast tubing, not extruded.

Also, a lense that is taller or "rounder" (not as flat as the stock one) would achieve three things:
1. Less of an angle is presented to the light beam = less refraction.
2. Increased distance from the lamp = less chance of heat distortion.
3. Stronger, more spherical shape.


Very nice thinking! Would cast be optically clear enough? I agree the lenses are quite flat. If I were to start with a new mold or CNC, I'd increase the profile for aesthetics but then it may unfavorably distort the beam...

The only specs I have for refraction and clarity are for flat sheet Lexan, not tubes. The curve will impact both a bit, but 1/8" is thin.

Looks like they don't differanciate between cast /extruded in Lexan - perhaps I was thinking of Acrylic tube.

http://k-mac-plastics.net/polycarbonate-tubes.htm


"For the clarity of glass and the impact strength of metal, specify Polycarbonate Tube. Made from
FDA-approved ingredients, PC tube gives extraordinary design and fabrication opportunities. It can be machined, drilled, cut and sawed, and is easily joined with solvents and adhesives.  Weather Resistant, Underwriters Laboratories (UL) Ratings and Food and Drug Administration (FDA)  Compliant.  Made from GE Lexan® 124 and 104."
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neo914-6
post Sep 15 2005, 10:03 AM
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Doug,

That was very creative thinking but as I visualize it, the cylindrical shape at the top and bottom will not taper enough. You could take a roll of clay and cut it OR if someone had a 3D CAD program they could simulate it...
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cbenitah
post Sep 15 2005, 09:22 PM
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Just curious if anyone has tried to do this??

(IMG:http://img367.imageshack.us/img367/9853/light6bj.jpg)
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Aaron Cox
post Sep 15 2005, 09:24 PM
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QUOTE (cbenitah @ Sep 15 2005, 08:22 PM)
Just curious if anyone has tried to do this??

<a href="http://imageshack.us">(IMG:http://img367.imageshack.us/img367/9853/light6bj.jpg)</a>

white race car in S. America....

cant find pics..
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bondo
post Sep 15 2005, 09:27 PM
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What about glass lenses? They'd be clear and heat resistant. It isn't all that hard to slump sheet glass into a mold. Trimming it to size and drilling the holes would be the tedious part.
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cbenitah
post Sep 15 2005, 11:14 PM
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QUOTE (Aaron Cox @ Sep 15 2005, 07:24 PM)

white race car in S. America....

cant find pics..

You mean this one?
i ment on a Drivable 914.. just mood the lights.. although i love Felix idea!

(IMG:http://img356.imageshack.us/img356/9954/zwildgt3a7uf.jpg)
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neo914-6
post Sep 17 2005, 10:45 PM
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Here's my test set up, fully charged porta-battery, jack leg wiring, harness is actually virtually plug in play but I may have to extend some wires...


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neo914-6
post Sep 17 2005, 10:47 PM
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Houston, we have ignition. Ballasts have a whine at warm up but there also no engine sound right now...


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neo914-6
post Sep 17 2005, 10:49 PM
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The experimental filled lense from Bruce. It won't lay flat because it's not concave anymore.


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neo914-6
post Sep 17 2005, 10:53 PM
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Temps were measured by a meat thermometer thanks to Andrews but it maxed at 190F so...

Filled resin was soft and warm to touch after minutes. I had the lense mounted and light on for 30 minutes and after removing it, I could dent the filled resin and it would return to flat. (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif)

I may need to leave it off for night use and install a clear lense for day time and shows...

Maybe design a retractible lense. (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)


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GWN7
post Sep 17 2005, 11:30 PM
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I was wondering about the heat and how it would effect it. I guess the plastic isn't the way to go seeing the ones without the inside fluting would be thinner and subject to further distortion because of the heat. Most cars that use the projector type lamps have more space between the lamp and their exterior lenses. I'm guessing this lessens the heat that is transfered to the lens.

I'll see on Monday about the glass option.
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