Q8 modding

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joechina
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@Goodtobeking

You should solder blob your batteries, it is saver. If you use it without buttom top
- the shrink wrap can tear, which make it more likely to short.
- it could be one battery doesn’t make contact.

You plan to bypass the springs? Hell make sure the positive side has good contact.
= You need nipples on your batteries!
This should be the first thing what you do before you start to mod the rest.

You should search the Q8 thread for solder blob or solder boob or your batteries.
You should find plenty how to dos and explanations why its save/better.

Soldering on aluminium is normally PITA. But I am no solder expert.

Have fun with your light!

Regards
Joe

khas
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Lightmalls sells this tail MCPCB and it’s a perfect fit for the Q8.

Happy modding

Goodtobeking
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@FlashyMike Thanks for specifying the size tested and size recommended. Wow are they bigger than I thought. I’m going to put that on the back burner and see how upgraded springs do. But I will continue to investigate it.

@ Joechina Thanks for the concern and rationally expressing your opinion. Yeah I know about the risks using these flat tops. They are slightly raised flat tops, so they seem to be connecting fine for now. I have an order from mtnelectronics.com with a bunch of brass buttons for soldering onto my batteries. I know I can just solder blob/boob them, but I like the idea of brass tops. I also ordered the 4 different types of springs for modding and testing. And I got some battery shrinkwrap incase I get any damaged battery wrappers, and planning on using it to “snug” up my batteries in the tube so they don’t rattle as much.

As for the aluminum, I am going away from that. I wasn’t aware aluminium was so hard to solder. I knew you could weld and braze it. From what I read it can be soldered on, but not worth the extra effort and special supplies. I am just going to use the extra tail board that I ordered to mod and playwith.

@ Khas Thanks for that. I ordered one. ~$5 shipped is awesome.

I got another question though. How are you guys applying that center reverse polarity protection ring?? Press fitted, glued, magic??

Sidenote: sorry if my first post was a little incoherent. I had a half day off in the morning because of the bad weather. Took a lot longer to compose that post than I thought and I ran out of time.

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goshdogit
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I’m not sure this technically counts as a mod, so I posted the bulk of this in the Q8 thread. Party

Lexel
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goshdogit wrote:
I’m not sure this technically counts as a mod, so I posted the bulk of this in the Q8 thread. Party


you forgot to wire all the switches together
the middle one will be hard to use

goshdogit
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Lexel wrote:
you forgot to wire all the switches together
Big Smile Tell me about it!

I had to use a chopstick to press the switch on the center Q8! I’m still seeing spots…

joechina
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Have you switched them together into strobe mode? Smile

MRsDNF
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You are one crazy person goshdogit. One is bright let alone seven together. LOL

 

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Spiderlight
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Does somebody know the length of the tail PCB screws?

Goodtobeking
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I’ve read they are m2.5 5mm long. I bought 10mm long brass screwsand plan on cutting them down

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Lexel
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no comment

khas
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Spiderlight wrote:
Does somebody know the length of the tail PCB screws?

Driver: M2.5×4mm *2 pcs
Tail pcb: M2.5×5mm *4 pcs
Reflector: M4×10mm *1 pc
MCPCB: M2.5×10mm *2 pcs

Spiderlight
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khas wrote:
Spiderlight wrote:
Does somebody know the length of the tail PCB screws?

Driver: M2.5×4mm *2 pcs
Tail pcb: M2.5×5mm *4 pcs
Reflector: M4×10mm *1 pc
MCPCB: M2.5×10mm *2 pcs

Thank you! Just ordered M2.5×6mm brass screws because the modification I have in mind will need slightly longer screws.

ZoomieFan
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Is there a quad Nichia 219B version of this light? Or just a quad Nichia 219B mcpcb?

Chargers: 1xBasen BD01 5/5, 1x Gyrfalcon All-88 4/5, LiitoKala: 3x100 3/5, 2x202 3/5, 1x402 3/5., MiBoxer C4-12 3/5.
Flashlights: DQG Tiny III 26650 5/5, FiTorch MR35 3/5, Haikelite SC26 HD 3/5, Lumintop Tool AA/AAA 4/5, Nitecore LA10, Sofirn C01 BLF 3200k/5600k 2/5, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5, Xtar PB2S 5/5
Waiting for: (DQG Tiny) 21700 EDCs.

Wieselflinkpro
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you can reflow the XP-L Emitters and change them to 219B or 219C. Its the same LED-Footprint.

ZoomieFan
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So I replace the standard LEDs with 4 of” these”:http://www.mtnelectronics.com/index.php?route=product/product&path=60_94...?

Best place to buy? I’m in Europe (most of the time)

BTW any discount codes?

Chargers: 1xBasen BD01 5/5, 1x Gyrfalcon All-88 4/5, LiitoKala: 3x100 3/5, 2x202 3/5, 1x402 3/5., MiBoxer C4-12 3/5.
Flashlights: DQG Tiny III 26650 5/5, FiTorch MR35 3/5, Haikelite SC26 HD 3/5, Lumintop Tool AA/AAA 4/5, Nitecore LA10, Sofirn C01 BLF 3200k/5600k 2/5, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5, Xtar PB2S 5/5
Waiting for: (DQG Tiny) 21700 EDCs.

ferk
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TBone
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ZoomieFan wrote:
Best place to buy? I’m in Europe (most of the time)
Member clemence’s shop is the best source for high CRI Nichias. Ships worldwide.
ZoomieFan
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TBone wrote:
ZoomieFan wrote:
Best place to buy? I’m in Europe (most of the time)
Member clemence’s shop is the best source for high CRI Nichias. Ships worldwide.

Thanks, ordered 5.

Will any type of solder paste do? Or is there a special types for hot leds?

Chargers: 1xBasen BD01 5/5, 1x Gyrfalcon All-88 4/5, LiitoKala: 3x100 3/5, 2x202 3/5, 1x402 3/5., MiBoxer C4-12 3/5.
Flashlights: DQG Tiny III 26650 5/5, FiTorch MR35 3/5, Haikelite SC26 HD 3/5, Lumintop Tool AA/AAA 4/5, Nitecore LA10, Sofirn C01 BLF 3200k/5600k 2/5, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5, Xtar PB2S 5/5
Waiting for: (DQG Tiny) 21700 EDCs.

Joey Adams
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TomE would you please check your PMs. It’s been over 11 weeks since your last response indicating you were finished modifying my q8. Thanks in advance

Flashy Mike
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May I introduce BLF Q8 Janus:

2 Heads, one white, one with red, green, blue and amber LEDs, heads and color LEDs individually controllable.

The modified MCPCB with XP-E2 color LEDs, and my driver which is used in both heads. In the white head populated with FET + 7135, in the color head populated with 4 × 7135 for each LED. MCU is Attiny 841. Full ramping UI of course. The reflector bottom had to be grinded a bit to make room for the outer LED wire pad. Reversed MCPCB polarity (batt+ at the outer trace to keep grinding at a minimum).

Cut a solid 6mm brass rod and soldered a spring on one end in order to bring batt+ to the rear head. Used tape to isolate the rod and drilled a hole in the tail PCB.

The threads at the rear end of the battery tube are too short to reach the driver board so I made cut outs (for the PCB screws) to a copper ring and put this ring above the PCB.

Btw., this is how I program my Q8 drivers:

goshdogit
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Excellent work! I love it! Love

kotobuki
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Lexel
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UV might been also a good 4. color

What MCU are you using?

teacher
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That is very impressive Flashy Mike!!! Thumbs Up .. Beer

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Flashy Mike
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Lexel wrote:
UV might been also a good 4. color

What MCU are you using?

Attiny 841 with 6 PWM channels which can almost freely be assigned to 8 output pins.
Yes, I was also thinking of UV but not with this light since it will also be used by my children. If I use UV in an other multi color light I probably will add some security code into the firmware to avoid unintentional activation.
goshdogit
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I decided to ‘Foybezel’ my Q8s. Party

I used a belt sander with a 40-grit belt, an orbital sander with a 120-grit disc, and a few minutes of hand sanding with 180-grit and 400-grit laid on a flat surface.

I also applied some thin strips of adhesive vinyl between the fins to tell them apart.



MRsDNF
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Nice job goshdogit. They all look very neat. Beer

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Herb Tarlek
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goshdogit wrote:

Very nice.

I want a cool white light about as much as I want Cool Ranch Soda.

 

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Tender
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Very cool Flashy Mike and goshdogit

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