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znomit
Ridden
Joined: May 28, 2008
Posts: 229
Location: Palmy
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 Posted: Sun 19/Oct/08 8:46pm Post subject: |
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| Rider-man-Cam wrote: | | my halogen over heats in that plastic shell, Would little slots solve this or just make it open to the weather? I am toying with some trick carbon firbre jobby but where have no idea where to get it |
Aluminium tape on the back of the bulb does a good job of reducing the heat out the back.
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Rider-man-Cam
Thrashed
Joined: Aug 19, 2007
Posts: 1,471
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| Posted: Sun 19/Oct/08 8:55pm Post subject: |
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tin foil?
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znomit
Ridden
Joined: May 28, 2008
Posts: 229
Location: Palmy
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| Posted: Sun 19/Oct/08 9:03pm Post subject: |
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Yeah prolly work.
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Rider-man-Cam
Thrashed
Joined: Aug 19, 2007
Posts: 1,471
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| Posted: Sun 19/Oct/08 9:04pm Post subject: |
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will give that a lash
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ape
Worn
Joined: Jul 01, 2004
Posts: 576
Location: auckland
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| Posted: Wed 22/Oct/08 6:42am Post subject: |
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I've always found that alluminium paint (pretty much all silver paints) do a nice job of pushing the light and heat out the front, where you want it, not out the back like the bulbs were designed to do...
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Rider-man-Cam
Thrashed
Joined: Aug 19, 2007
Posts: 1,471
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| Posted: Wed 22/Oct/08 9:49am Post subject: |
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try both  my design doesnt have anywhere for the heat to escape tho should I be putting some slot in or something 
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matakivi
Shiny
Joined: Feb 06, 2008
Posts: 22
Location: Dunedin
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| Posted: Wed 22/Oct/08 10:21am Post subject: |
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| Datsane wrote: | | Nice set up. I'd run them then other way around or is the 6 to heavy? |
No its not, moved main unit to helmet. Also replaced 4 optics to 15 degrees (now 2*25 and 4*15). Works great, I'm driving them only at 0.5 amps so no cooling really necessary. Made little video with new setup (you can learn some Finnish language as well  ).
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Datsane
Mangled
Joined: May 25, 2004
Posts: 11,554
Location: V8 Street Race NZ
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| Posted: Wed 22/Oct/08 1:13pm Post subject: |
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Do you find them glarey or is it just the camera picking up reflection from the leaves etc...
Looks like a good amount of light, though alittle hard to tell in a video.
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steelrider
Dusty
Joined: Jun 20, 2008
Posts: 48
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| Posted: Sun 26/Oct/08 10:22pm Post subject: |
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Wheres the best place to get Li-Ion battery packs? Have already checked out batteryspace.com and they want huge sums of money for shipping.
Looking for 14.8V 4400mah.
Anywhere I can source these in NZ?
Could I make my own?
D
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Datsane
Mangled
Joined: May 25, 2004
Posts: 11,554
Location: V8 Street Race NZ
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| Posted: Mon 27/Oct/08 5:21pm Post subject: |
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You could make your own, but since you asked if you can I wouldn't.
Batteryspace has another web site which for some reason has cheaper shipping. Cant remember the name of the place sorry
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matakivi
Shiny
Joined: Feb 06, 2008
Posts: 22
Location: Dunedin
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Datsane
Mangled
Joined: May 25, 2004
Posts: 11,554
Location: V8 Street Race NZ
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| Posted: Thu 6/Nov/08 6:09pm Post subject: |
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Crikey thats bright
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Datsane
Mangled
Joined: May 25, 2004
Posts: 11,554
Location: V8 Street Race NZ
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| Posted: Thu 13/Nov/08 10:39pm Post subject: |
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Started a new housing tonight. Making one it out of an old front hub (idea from someone else).
I'll try to get some photos as I go along.
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znomit
Ridden
Joined: May 28, 2008
Posts: 229
Location: Palmy
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| Posted: Fri 14/Nov/08 12:42am Post subject: |
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Been running my latest for a few weeks.
5 leds ~ 800lm off the dynamo. The one on the left is a single oval optic that has a supercapacitor on it so it stays lit for a few minutes when I stop.
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plummet
Dusty
Joined: May 07, 2003
Posts: 70
Location: New Plymouth
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| Posted: Wed 10/Dec/08 3:44pm Post subject: Super Light Weight Battery Packs . Maybe Cell Phone Battery |
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ok i've already got some led lights i've made.
they are 2 x 1amp xre cree's wired in series.
i'm powering them with a buck puck driver and 11.1v 2.2 amop li ion battery pack.
the pack weighs 200gms and goes in a pocket. on 80% power i get about 5-6 hours use (can't tell the diff between 80% and 100%.
Any way now with the daylight savings i only realy need light for maybe an hour max for my mid week rides.
so i'm thinking of building a superlight battery pack that last around and hour at 80% and 2 or so on 50%
i've heard dudes have used cell phone batteries in the past with out drivers. can someone give me the low down on how to do this? i'd like to mount the battery on my helmet so i don't need to run an external cable to a battery in my pocket.
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