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> LED Foglight Project
914-300Hemi
post Nov 9 2019, 09:54 AM
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Spoke,
I would like to to try a set. If they are still available
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Retroracer
post Nov 9 2019, 12:39 PM
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QUOTE(Spoke @ Apr 15 2019, 06:53 PM) *

QUOTE(Mike Bellis @ Apr 15 2019, 09:22 PM) *

Why not mount the power supply remote in an IP65/67 enclosure mounted behind the 914 grille? It would free up some space and maybe reduce temps inside the light assembly.


This is what I did for the 356 running lights although the boost converter PCB was mounted inside the housing. I proposed a separate box to put the converter in but the owner didn't want an external box so I mounted on the back of the heatsink.

I'd like to keep it to one PCB for simplicity although a separate module may be needed depending on temperature rise.


Spoke - First off, well done on tackling this design! Not noticed this thread until today.

Great that you went for a "single box" solution; the fog lights are typically subject to some airflow and not near any heat sources - which is good. Kind of wondering if there's any way to extend the LED heatsinking out to the rear metal enclosure? Again, this is usually not exposed to a casual finger burn and the mount lug to chassis would be a great "thermal sink".

Obviously some serious three dimensional issues to solve there, getting the right stack up and profile to contact well to the outer shell. And the added expense over an "off the shelf" heat sink. But 10ish watts dissipated inside a small enclosure with only convection cooling to the casing might mean the electronics be running hot....?

Again, love seeing this kind of project being tackled, with modern electronics being integrated tastefully into existing components!

- Tony
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Spoke
post Nov 11 2019, 08:55 PM
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Guys, I have you down for the three V2 boards I'm assembling right now. I'll get with you about payment and shipping and all. These boards are black in color.

Unfortunately, I fucked up the design of the boards by making them too small. The amazing thing is I had these V2 boards designed about 100mil larger and I out-thought myself and at the last minute made them the same size as the V1 boards.

Mark and I are the only ones with the V1 boards with discrete dc-dc converter. His boards are shown below. In the first picture the black surrounding the board is the plastic part I printed to hold the board in sync with the glass lens and gasket.

The problem comes in when looking at the 2nd picture with the board mounted in the light bezel. The clips barely touch the board. This is not good or sustainable. The board needs to be about 150mil larger.



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Spoke
post Nov 11 2019, 09:06 PM
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One other thing with these V2 boards, you'll have to send the glass lens and bezel to me so I can fit these boards myself. I had so much of bitch of time getting Mark's boards to fit that I cannot have you go through this. This will also help me understand how to ease the mounting of these boards in the lens/bezel.

What I will do is replace the gaskets with new 914rubber gaskets and mount the boards. It will ease your installation greatly. If you want as well I can paint (gloss black) the bezel for you if you want.
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post Nov 11 2019, 09:16 PM
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Jerry - Does it matter if the lights are early or late?

And I'm in no rush for the second set so if you have someone next in line, feel free to move me down the list. I'll get them but the second set will be on my shelf for a while.
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Spoke
post Nov 11 2019, 09:16 PM
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@Tbrown4x4

I am in the process of redesigning the boards (V3) to be 150mil larger. The plan is to offer 5 members a set of foglights again for $100/set. These will be a couple of weeks out as I haven't finished the design yet. The boards will be black color.

Todd I have you down for one of the board sets. You mentioned about using the fogs for 100 mile commutes with 914rubber yellow lens. These should work well with them. Here's a 911 with my foglights with yellow lens.





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post Nov 11 2019, 09:31 PM
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QUOTE(mepstein @ Nov 11 2019, 10:16 PM) *

Jerry - Does it matter if the lights are early or late?

And I'm in no rush for the second set so if you have someone next in line, feel free to move me down the list. I'll get them but the second set will be on my shelf for a while.


Not a problem with later years. The lens is flatter than early years thus a larger spacer is needed however the later bezel is flatter thus allowing the spacer to take up space with the original clips to be used.

And no, you are getting a second set. I still haven't gotten a ride in your 914/6... Shit's piling up on your side. Karma's a bitch. (IMG:style_emoticons/default/beerchug.gif)

I have 3 late fogs from you although 2 of the glass lenses are pretty beat up. One is fully cracked in half. One is in good shape. If you want to send a better set, that's your decision.
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Spoke
post Nov 11 2019, 09:38 PM
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QUOTE(mepstein @ Nov 11 2019, 10:16 PM) *

And I'm in no rush for the second set so if you have someone next in line, feel free to move me down the list. I'll get them but the second set will be on my shelf for a while.


If you want, @Tbrown4x4 is looking for a set, I target the set to him.
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mepstein
post Nov 11 2019, 09:41 PM
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I figured you could use those old ones for testing. I don’t need them back. I do have a better set and we’ll work out the details later. Thanks.
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Tbrown4x4
post Nov 11 2019, 10:12 PM
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Those look great. Should make the drive a little safer. Should I PayPal you the $ now or?
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Spoke
post Nov 11 2019, 10:35 PM
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QUOTE(Tbrown4x4 @ Nov 11 2019, 11:12 PM) *

Those look great. Should make the drive a little safer. Should I PayPal you the $ now or?


Let me get back to you on this. I need to have the LED fogs completely assembled before asking you to send you lens/bezels to me. this will minimize the disruption in your daily commute.
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Tbrown4x4
post Nov 12 2019, 07:50 AM
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Sounds good!
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post Nov 12 2019, 10:00 AM
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QUOTE(Spoke @ Nov 11 2019, 10:06 PM) *

@mepstein
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@bahnzai

One other thing with these V2 boards, you'll have to send the glass lens and bezel to me so I can fit these boards myself. I had so much of bitch of time getting Mark's boards to fit that I cannot have you go through this. This will also help me understand how to ease the mounting of these boards in the lens/bezel.

What I will do is replace the gaskets with new 914rubber gaskets and mount the boards. It will ease your installation greatly. If you want as well I can paint (gloss black) the bezel for you if you want.


I can pull my bumpers and fog lights this will and send you what you need, do I send you the whole fog light assembly ?

Just let me know where to send and what to send- or I can wait for the V3 set coming up, either way- also have to pay you too!!
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