M@g 2C quad XPG

[tx101]

Yes, this is what i am thinking too, i took some measurements and concluded the same, though i guess most of you guys already know that due to your experience with previous mods.

Just help me where can i find a heatsink to use for the mod, thanks again!

I have send you a PM :thumbsup:

 

[Hill]

Top man, Hill :twothumbs

All I need to do now is wait for my order to ship from Cutter
and I'll start "cloning" your build

Just an FYI, I purchased my XPG's from LED supply. They are in the states so shipping for me was really fast. Only thing is binning is a crap shoot. I think mine have a tint of green. Not horrible, but I would have preferred either white or neutral tint.

 

[Hill]

Hi, the dimensions are exactly 19,5(can make though about 1mm less for sure by trimming the spiral) and height 14mm. I have one in home, for xr-e though, but the dimensions are the same.

I want to ask something about that project, where did you find the heatsink?Thanks!!

Ah yes, those mysterious customized heatsinks. When I started modding, I bought mag heatsinks from several CPF users. They were all well machined and worked perfectly. However, in trying to keep my modding costs down (and challenge myself), I hand cut, glue, and grind custom heatsinks from stock aluminum rod. Short sections can be purchased a la carte from several online vendors (Online metals, Speedy metals, etc). It takes a lot more time, but also allows me to maximize my heatsink mass. The XPG heatsink above was nearly the same mass as the MagC head itself. It was assembled from two different diameter Al rods using a combination of thermal epoxy and JB weld. Wire holes were drilled with a cordless hand drill. The end result is never "perfect", but certainly functional and very satisfying :thumbsup:.

 

[ergotelis]

It was assembled from two different diameter Al rods using a combination of thermal epoxy and JB weld. Wire holes were drilled with a cordless hand drill. The end result is never "perfect", but certainly functional and very satisfying :thumbsup:.

Sometimes the result is not such important, like the will and idea to do something yourself. You are almost all the way done. Your next build will be almost perfect! Cheers!

 

[Hill]

Your next build will be almost perfect! Cheers!

Always striving for the best!

 

[tx101]

Here is my ghetto version of your driver holder

Yup, thats right, I used part of the original Mag bulb holder
It is not a perfect fit, I had to file down some material from
the ID of the bulb holder so that the board could sit securely
that plus some epoxy.

BTW, the Download 20mm self centering reflectors work really
well. Nice blend of hotspot and spill ..... you should get some :naughty:

 

[Hill]

Here is my ghetto version of your driver holder

Yup, thats right, I used part of the original Mag bulb holder
It is not a perfect fit, I had to file down some material from
the ID of the bulb holder so that the board could sit securely
that plus some epoxy.

BTW, the Download 20mm self centering reflectors work really
well. Nice blend of hotspot and spill ..... you should get some :naughty:

Hey, nice work!! But where's the rest of the build! I would love to see a beam shot with his reflectors. I wonder what the beam angle is compared to the Regina, which was +/- 5 IIRC. I may have to get a few. I'm not happy with the positioning of my optics. One issue is the heatsink is not quite level, which is a problem when the bezel is screwed down.

Looking forward to the rest of it!

 

[tx101]

I'll try to get some beamshots done over the weekend

 

[Hill]

Ordered those XPG reflectors from Download. Can't wait to get them in.

 

[ergotelis]

Bram will have regina reflectors this week in stock...Just pm him or email .
I ordered 5 waiting to build my own mag:
1,5D host, 4x14670, buck convertor which needs 0,3V more than the batteries to regulate at 1amp, so i guess i will be fine due to very low vf of xp-g.

 

[Hill]

Bram will have regina reflectors this week in stock...Just pm him or email .
I ordered 5 waiting to build my own mag:
1,5D host, 4x14670, buck convertor which needs 0,3V more than the batteries to regulate at 1amp, so i guess i will be fine due to very low vf of xp-g.

Thanks, I saw them @ CPFM. Those are different than Download's version here which are metal and include centering rings. Would be interesting to compare the beam from each reflector...

Good luck with you mod. BTW, which converter are you using? You'll probably want multi level output as I found the light to get hot running 4 x XPG @ 1.4A each.

 

[ergotelis]

I will use an ax2002 drivers, a cheap buck converter from Dx. If it doesn't work, i will use a good one from taskled!
I agree with the fact that 1,4amp is too high, one amp is ok i think, i will try to do the best in heatsinking.

 

[Hill]

You can also try Downloads 2.8A 3 speed driver I used above. Not expensive and very dependable in my hands delivering the expected current. Plus Charles is just a great guy to buy from and very helpful.

The Taskled lineup is also great. I have used many of George's drivers in the past. All are topnotch, reliable, and George is also extremely helpful - not something you get with DX/KD products. However, many of his require the momentary switch modification which is fine with a magD switch, but somewhat less reliable with the magC switch (because of the switch mechanics, NOT the driver itself).

 

[ergotelis]

I have a MagD host, so i will be ok if i use a taskled driver!But first i have to test this driver i have to see how it goes. Even Charles sells them, though they are multimode.

 

[tx101]

The Taskled lineup is also great. I have used many of George's drivers in the past. All are topnotch, reliable, and George is also extremely helpful - not something you get with DX/KD products. However, many of his require the momentary switch modification which is fine with a magD switch, but somewhat less reliable with the magC switch (because of the switch mechanics, NOT the driver itself).

Have you tried the Mag C switch mod posted by member Don Shock ?

I have used that with my Quad XPG and also with a Tri-Flupic and a MaxFlex.

You can find it here

Although, I had to remove more plastic than shown in the photo in the link

I believe another member posted than he eliminated the problem by
just stretching the spring a bit
I have not tried that particular method


BTW, I pulled the trigger on the Regina reflectors as well
Looks like Im going to be building a second Quad XPG
And before you ask, yes I will post some beamshots

 

[Hill]

Yes, I did see those mods to reduce the apparent "bumping" of the magC switch. Since Charles's new drivers do not suffer from the occasional level jumping, I did not have to do any further mods.

Yes, these quad XPG's are really nice. I just got 5 neutral white XPG's from Digikey. Only bare emitters, so I need to reflow onto 8mm boards from SS. Boy these are hard to work with, but I did manage to do one so far. Compared next to the white ones I got from LED Supply, I like them much better (no green tint). Right now I'm building a mag1C neutral white XPG driven @ 1.4A with several different deep reflectors. I want maximum throw from this guy :devil:. That leaves me with 4 XPG's - maybe another quad!

 

[Hill]

Hi, the dimensions are exactly 19,5(can make though about 1mm less for sure by trimming the spiral) and height 14mm. I have one in home, for xr-e though, but the dimensions are the same.

I want to ask something about that project, where did you find the heatsink?Thanks!!

Did you ever get these reflectors?

 

[ergotelis]

Did you ever get these reflectors?

Hi Hill, i got them, they produce a very nice big hotspot with lots of sidespill, but i think i would like something with more throw. So, i ordered the regina reflectors.
The beam profile of the c2h xpg reflector is exactly the same like quark minis' reflectors,maybe the hotspot is even a bit larger.
The C2h xpg reflector is even better with cree xp-e. Maybe one of the best beam profiles i have seen. Nice tighter hotspot and excellent transition from spot to spill. I am planning to use them with xp-e leds in various projects.

 

[Hill]

Hi Hill, i got them, they produce a very nice big hotspot with lots of sidespill, but i think i would like something with more throw. So, i ordered the regina reflectors.
The beam profile of the c2h xpg reflector is exactly the same like quark minis' reflectors,maybe the hotspot is even a bit larger.
The C2h xpg reflector is even better with cree xp-e. Maybe one of the best beam profiles i have seen. Nice tighter hotspot and excellent transition from spot to spill. I am planning to use them with xp-e leds in various projects.

I think many of us are in search of the best XP-G reflector/optic to give maximum throw in a multi-Led setup. Txt101 just built a quad XP-G using Download's reflectors. Those are aluminum and come with centering rings. I just ordered them and plan to swap out my optics for those since I was having problems getting the optics to seat properly without the holders. It would be interesting to do a side by side comparison of the Regina vs Download's XPG reflectors.

 

[tx101]

I have a Quad XPG using Downloads reflectors and a Triple XPG using LXP optics
Would that be a fair comparison ???

The Quad is running at 1.4A while the Triple is running at 800mA or direct drive
in burst mode

In addition the tint of the triple is green while the quad is white