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Old 11-13-2007, 07:50 AM   #1 (permalink)
Thirsty
 
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Default Anyone ever build their own MTB light?

I have a buddy who built his own MTB light that he uses on the Fully Loop. He soldered D-cell rechargeables together to make his battery pack.

I am looking to do something similar with rechargeable batteries and some LEDs from www.superbrightleds.com.

This would be a fun project in addition to saving me money on a light system.

I've googled it a bit, but my biggest block is the batteries. I don't know much about electrical engineering, so I am clueless when it comes to selecting a battery pack for use as is or cells to solder together.

Anyone have suggestions on where to start or their own experience building an MTB light?

Thanks.
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Old 11-13-2007, 07:52 AM   #2 (permalink)
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i thought about it as i have one projector lense from a crashed 2007 GTi w/ bulb, projector, and ballast. And since i used to race RC cars i have a grip of NimH batteries and was thinking bout rigging something up...oh it's a bi-xenon projector too so you can hit a switch/button and the shutter will open to reveal ALL the light
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Old 11-13-2007, 07:54 AM   #3 (permalink)
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It can be done we have the Technology. We can make it better, faster, stronger. Thats from the six million dollar man.

Yea I thought about making one myself.
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Old 11-13-2007, 08:01 AM   #4 (permalink)
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We ride with this guy on Thursday nights down here in SD...he made his own...it's a desk lamp
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Old 11-13-2007, 08:01 AM   #5 (permalink)
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If you check on Empty Beer, there are a bunch of threads and links about how to do it. I may be making one too.
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Old 11-13-2007, 08:03 AM   #6 (permalink)
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Default Just

Quote:
Originally Posted by BrewMaster View Post
I have a buddy who built his own MTB light that he uses on the Fully Loop. He soldered D-cell rechargeables together to make his battery pack.

I am looking to do something similar with rechargeable batteries and some LEDs from www.superbrightleds.com.

This would be a fun project in addition to saving me money on a light system.

I've googled it a bit, but my biggest block is the batteries. I don't know much about electrical engineering, so I am clueless when it comes to selecting a battery pack for use as is or cells to solder together.

Anyone have suggestions on where to start or their own experience building an MTB light?

Thanks.
Duct tape / zip tie on of these to your helmet

http://www.superbrightleds.com/flashlights.htm
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Old 11-13-2007, 08:07 AM   #7 (permalink)
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Quote:
Originally Posted by DeeZee View Post
Duct tape / zip tie on of these to your helmet

http://www.superbrightleds.com/flashlights.htm
you first.
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Old 11-13-2007, 08:58 AM   #8 (permalink)
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Default Chicken.....

Quote:
Originally Posted by BrewMaster View Post
you first.

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Old 11-13-2007, 09:11 AM   #9 (permalink)
Which way did he go?
 
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Quote:
Originally Posted by sdyeti View Post
We ride with this guy on Thursday nights down here in SD...he made his own...it's a desk lamp
How in the world did he do that? He must travel with the worlds longest extension cord....

Love to see photos of the invention.
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Old 11-13-2007, 09:19 AM   #10 (permalink)
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Quote:
Originally Posted by ghixon View Post
How in the world did he do that? He must travel with the worlds longest extension cord....

Love to see photos of the invention.
Its pretty easy.. Items needed are a Bob trailer,Honda eu1000 generator,Desk lamp
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Old 11-13-2007, 09:21 AM   #11 (permalink)
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I would pay anyone who is mechanically savvy enough to make one, to make a second for me... I have wanted to, but I suck.

here are some good links to where all the homebrew/DIY lighting stuff is going on to keep up with all the latest LED's and lenses, etc.

http://www.candlepowerforums.com/

http://forums.mtbr.com/forumdisplay.php?f=124

some dude putting 1000 lumens on his helmet
http://forums.mtbr.com/showthread.php?t=354430

this thread seems to cover some of the basics of component selection
http://forums.mtbr.com/showthread.php?t=355960
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Old 11-13-2007, 09:25 AM   #12 (permalink)
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No need to use D cells. Rechargeable AA batteries are running as much as 2700 mAh nowadays and do suffice. You can connect 5 AA cells in series to create a 6 volt 2.7 mAh battery or 10 AA cells to create a 12 volt battery. In all actuality you would want to connect 11 to create a 13.2 volt battery to overamp a 12 volt bulb. If you want more run time, you'll need to connect the cells in parallel. Any questions?
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Old 11-13-2007, 09:26 AM   #13 (permalink)
Which way did he go?
 
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Quote:
Originally Posted by COLEKO View Post
Its pretty easy.. Items needed are a Bob trailer,Honda eu1000 generator,Desk lamp
Is it a gooseneck or a bankers light?
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Old 11-13-2007, 09:36 AM   #14 (permalink)
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Quote:
Originally Posted by Burner View Post
I would pay anyone who is mechanically savvy enough to make one, to make a second for me... I have wanted to, but I suck.

here are some good links to where all the homebrew/DIY lighting stuff is going on to keep up with all the latest LED's and lenses, etc.

http://www.candlepowerforums.com/

http://forums.mtbr.com/forumdisplay.php?f=124

some dude putting 1000 lumens on his helmet
http://forums.mtbr.com/showthread.php?t=354430

this thread seems to cover some of the basics of component selection
http://forums.mtbr.com/showthread.php?t=355960

holy crap those were some complicated threads to understand. I felt like I just walked into an alien space ship or something. this could be more complicated than I thought. I may try to build a lame prototype just to tool around and find out what I don't know.

Quote:
Originally Posted by Pickettt@aol.com View Post
No need to use D cells. Rechargeable AA batteries are running as much as 2700 mAh nowadays and do suffice. You can connect 5 AA cells in series to create a 6 volt 2.7 mAh battery or 10 AA cells to create a 12 volt battery. In all actuality you would want to connect 11 to create a 13.2 volt battery to overamp a 12 volt bulb. If you want more run time, you'll need to connect the cells in parallel. Any questions?
Thanks Pickett. I am sure I will have some questions soon. Tell me if I am off here. Volts will determine how bright the bulb is. Amps determine the run time. Correct?
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Old 11-13-2007, 09:45 AM   #15 (permalink)
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Default batteries

For batteries.

http://www.batteryspace.com/
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Old 11-13-2007, 09:56 AM   #16 (permalink)
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Default instructables.com

Not being at all mechanically inclined, I've never tried any of these builds...one of them might work for you.

http://www.instructables.com/tag/?so...nstructable=on
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Old 11-13-2007, 10:03 AM   #17 (permalink)
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I had an old nightrider light that didn't work. The battery wouldn't hold a decent charge and somthing was fried in the microprocessor/turn-on switch. I was looking into building up a battery from scratch. After figuring out how much it would cost and the time to do it, I just decided to buy a water bottle battery and charger from batteryspace.com. I got rid of the whole microprocessor/turn-on switch and re-wired the bulbs with individual switches. I also use the battery (13.2v) for running my Sirius radio on my roadbike when commuting to work.
I got alot of info from the mtbr threads. Of course mine is an ancient halogen system. The way to go now is LED's.
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Old 11-13-2007, 10:09 AM   #18 (permalink)
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John actually built up an LED light; I'll forward the thread to him so he can give instructions. I believe that the problem he had with it was long time use and heat venting. But, I'll have to check with him.....
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Old 11-13-2007, 10:47 AM   #19 (permalink)
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More or less. Of course you have to match the bulb voltage to your battery. It is, however, safe to overvolt a bulb by 10% safely. Anymore than that and your bulb will burn out. mAh determine run time and will normally be printed on the cells themselves. Do you understand the difference between series and parallel wiring?
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Old 11-13-2007, 11:07 AM   #20 (permalink)
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