MattSPL
(MattSPL)
January 25, 2013, 10:16pm
1
I decided to make dual XM-L P60 :bigsmile:
First, i drilled the reflector with a 16mm hole saw
Then i cut a piece of 16mm copper bar and drilled 2 holes in it for the cables. One hole broke through the side, but it doesn’t matter.
I’m using an Led-tech copper pcb that will sit on the copper like this
Here it is with the 2 XM-L’s on it
This is how it will look installed in the reflector
I’ve not decided if this will be direct drive, or use a driver, but i’m waiting on drivers and blank 17mm pcb’s to arrive.
FlashPilot
(FlashPilot)
January 25, 2013, 10:36pm
2
I love that Cu heat sink. Nice work! Im looking forward to your beam shots. It should be a mega-flooder.
MattSPL
(MattSPL)
January 25, 2013, 10:40pm
3
Yeah, i can’t wait to get it powered up I’ll drill a smooth reflector too so i can compare the beams.
RaceR86
(RaceR86)
January 25, 2013, 10:42pm
4
NICE project! … and thanks for sharing.
I look forward to seeing and hearing more about it!
If you have another XM-L P60 it would be great to see comparison beamshots.
MattSPL
(MattSPL)
January 25, 2013, 10:44pm
5
Yeah no problem, i’ve a direct drive XM-L P60, and an XM-L2 P60 running about 4.25A
FlashPilot
(FlashPilot)
January 26, 2013, 1:02am
6
DD should make for a nice (if not short lived) hand warmer. >)
scaru
(scaru)
January 26, 2013, 1:18am
7
Nice work, I like the way you used the PCB! One question: why not have the reflector sit on the pcb so more of the reflector is used?
MattSPL
(MattSPL)
January 26, 2013, 1:20am
8
Yeah, things could get toasty
MattSPL
(MattSPL)
January 26, 2013, 12:04pm
9
I hadn’t really thought about that. I just had a 16mm hole saw and wanted to see what it looked like with the copper pcb on show.
Itinifni
(Itinifni)
January 26, 2013, 3:10am
10
Can’t wait to see the end results (and beam shots).
You could stack 7135s on a driver for 6 amps and end up with lower modes for longer run times and less heat.
MRsDNF
(MRsDNF)
January 26, 2013, 4:29am
11
Nice. I've never seen a LED base used this way. I'm looking forward to the next instalment.
MattSPL
(MattSPL)
January 26, 2013, 12:01pm
13
I have drivers, blank pcb’s, and 7135’s on the way, so I’ll see how I get on.
I can’t take credit for the dual led on one pcb, Nailbender sells dual xp-g’s on a single pcb. This might be the first dual XM-l though?
I’m contemplating dismantling my direct drive single XM-l p60 so I can get this one up and running
MattSPL
(MattSPL)
January 26, 2013, 2:41pm
14
I couldn’t wait any longer, so i’m making it direct drive.
A bit more progress
MattSPL
(MattSPL)
January 27, 2013, 5:40pm
15
I finished this today
One Led wasn’t working, so i had to remove the pcb and remove the led’s, test them, and reflow them again.
So, here’s the finished product
And the disastrous beamshot :_(
I’ll have another go at this with a bit of modification and a new reflector at some stage.
An interesting thing though, it was causing problems with the 7 Amp protection circuit on my Enerpower+ 2900mAh/3C cell(pulling nearly 8 Amps from the cell), and when i put in a Senybor IMR (Panasonic cgr18650ch), it pulled 12 Amps J)
NightCrawl
(NightCrawl)
January 27, 2013, 12:52am
16
12 amps for 2 emitters, nice! But the beam is far from pretty. :D
Btw., could you set the size of your pictures to 100%?
MattSPL
(MattSPL)
January 27, 2013, 1:00am
17
NightCrawl:
12 amps for 2 emitters, nice! But the beam is far from pretty.
Btw., could you set the size of your pictures to 100%?
I’ve made the last 2 pics a bit bigger, but if i make them any larger they don’t fit the page.
PCC
(PCC)
January 27, 2013, 1:55am
18
LOL! I had a feeling your beam shot would look like it did. You’re too far into the reflector to get anywhere close to the correct focus.
old4570
(old4570)
January 27, 2013, 2:22am
19
I did that about 2 or more years ago , dual XP-G , and Dual XM-L ..
The dual XP-G is better as the emitters are smaller , but you do get the do-nut hole , think back to SSC P7 and MC-E
https://budgetlightforum.com/t/-/2143
NightCrawl
(NightCrawl)
January 27, 2013, 10:39am
20
I meant smaller. :P
You can set the size to 100% in the posting process in the "appereance" tab. 100% in the first field for dimensions, clear the second one.