Take apart Quantum DD

[dafeichu]

I've had the Quantum DD for over a week now and really like it but I usually like my lights a bit more on the warmer side so after dinner I decided it was a good time to take it apart and reflow a Nichia 92 CRI led onto it. I've never taken apart a light this small before and was wondering if anyone could give any advice on how to take the small ring located in the head off? I've been using two very small screw drivers but just can't turn that darn ring.

Any advice on it's removal would be appreciated.

Also I have to give props to the maker of this small light. Very nice job.

 

[dafeichu]

Finally manned up and was able to get the retaining ring off. It. helped to use a rubberized cloth used to take lids off of jars to hold onto the Quantum.

 

[127.0.0.1]

pics plz!

 

[mohanjude]

You can use a heavy duty tweezers with pointed edge to twist the ring out.

 

[beach honda]

Pictures of the process....please!

 

[mohanjude]

I took photos with my iphone - so apologies for the quality

1.This is the view of the inside of the quantum

Notice the ring with the 2 small holes - the strong tweezer is pointed so it can fit into the holes

2. This is the tweezer dropped inside the quantium and located into the 2 holes. Keep untwisting the ring anti clockwise. There is a lot of turning as it needs to climb up the threads.

3. Ring lifted out of the quantum

4. The LE has been removed using the tweezers

5. The LE with the LED facing up

I reflowed the LED (not pictured) with other LED's such as 219 and UV



Hope this helps. Putting it back together is simply the reverse. Locate ring back inside quantum and screw it back tight. Make sure the ring is sitting square on the threads.

 

[Ore]

Mohan was faster but I post them anyway.

How to remove the retaining ring.

Quantum DD Parts

Stock Nichia 219 - Removed XP-G
Quantum Board with Nichia 219 - Quantum Board with XP-G2

Beamshots:
Thrunite Ti (XP-G R4?) - Quantum DD with XP-G2 R5 - Quantum DD with Nichia 219
All on high (as far as high is possible with the QTC), Camera set to 'sunny'

With the QTC you can get some really low lows:
Icelue trit - Quantum DD XP-G2 - Quantum DD Nichia 219 - Zebralight H501d on lowest setting (0.01 lm)

It gets even lower but I don't think this is anymore usefull
Quantum DD really faint (it's there look closely)- Zebralight H501d on lowest 0.01 lm

 

[dafeichu]

Nice pics guys. I can't really add much but I did the swap today and I'm liking it very much.

Here's the bare Nichia led in it's package.
http://i161.photobucket.com/albums/t237/dafeichu/knife/Lights/_MG_7572_zpsa24fcd5a.jpg

The board from the Quantum DD with the XP-G R5 led and the retaining ring. You can see where I scraped up the ring getting it off.
http://i161.photobucket.com/albums/t237/dafeichu/knife/Lights/_MG_7577_zpsf2e379c0.jpg

The XP-G on the left and the Nichia on the right.
http://i161.photobucket.com/albums/t237/dafeichu/knife/Lights/_MG_7583_zpsdcf96829.jpg

Here's the Nichia soldered onto the board. Cleaned it up a bit before putting it back into the Quantum. I used my heatgun under the board to do the soldering.
http://i161.photobucket.com/albums/t237/dafeichu/knife/Lights/_MG_7585_zps3ee4dc82.jpg

Just an FYI for those who want to use this led. Read the spec sheet before hand. I didn't and originally thought the arrow on the board was the anode. It's not


Your images are too large and have been replaced with links Please resize and repost.
See Rule #3 If you post an image in your post, please downsize the image to no larger than 800 x 800 pixels.
Your need to edit your images to remove the blank space surrounding the item of interest. - Thanks Norm

 

[jcalvert]

I want to thank all of you for your contributions in helping me, and I'm sure others, present how easy it can be to swap out the XP-G from the Quantum to a Nichia 219 with a "mini Will Quiles" style presentation. A concise photo presentation of the steps involved is incredibly helpful. Adding a few key instructions to each photo aids the process. I particularly appreciated "dafeichu's" enlarged, well-lit, last photo, which gave me the added confidence that my 219's cathode was properly orientated. Thanks to all! :thumbsup:

Peace,
John

 

[bigchelis]

I have an XPG2 on mine and it pulls about 875mA at the tailcap with fresh cell. Very bright and gets hot under 2 minutes but impressive to say the least.

bigC

 

[kevinm]

Quantum DD Parts

Any chance we could get dimensions on the optics? It looks like a Ledil...

 

[Ore]

Diameter: 10mm
Length: 7.8mm (with those small 'feets', without 7mm)

 

[kevinm]

Nice! It looks like the Ledil Lisa would work and give a 22 degree beam. Thanks!