Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

Sale thread/ Hosts/Heat Sinks/Focus adapters/lasers

Hi GSS,
That diode was binned the best out of 4 or 5 i tested and the lowest was 2100 mW not bad for these M140/s, . And the purple host stands out all those Hard Anodized colors of the 501B's are vivid and don't interfere with the grounding. Thats what i like about Anodizing anti protects the softer Aluminum. Glad you like it GSS..

Rich:)
 
  • Like
Reactions: GSS





I’m in. Took our first excursion out into the desert last night, maybe five miles. Not far, but enough to say hello to the moon with a n465 n450 and a m140. No pictures as we we’re just driving around. :)
 
Hi BM, Glad to see your settled in your new hacienda , some desert pics would be nice with a few coyote in the back ground but i would settle for a desert turtle or a road runner..

Rich:)
 
Nice heat sink Rich.

Say, you wouldn't have any of the skyray flashlights to hold a pair of 18350's or 16340's with a nice thick heat sink would you ?

If not do you have anything like that ? I have a pile of potentials but I like the look of the skyray or something different.
 

Attachments

  • SANY1907.JPG
    SANY1907.JPG
    182.9 KB · Views: 23
Last edited:
RedCowboy said:
Nice heat sink Rich.

Say, you wouldn't have any of the skyray flashlights to hold a pair of 18350's or 16340's with a nice thick heat sink would you ?

If not do you have anything like that ? I have a pile of potentials but I like the look of the skyray or something different.
Click to expand...
If its the skyray I also have from Lifetime, mine has the side button and is also purple.
They sure do hold a nice size sink and again I like that side button a little better..
Red what are planning to put in it?
 
Last edited:
I picked up a NDG7475 at auction, I wanted to do a fairly compact build for short duration use, the skyray can hold a couple inches of ....what is it, about 1 inch wide/25mm wide heat sink with a high drain pair of 18350 flat top IMR cells and a 1.8a X drive, it should be pocket friendly yet have enough heat reservoir to run for pointer duty.

There's limited use for super bright pointers, my burners need a lot of bulk to serve as a heat reservoir and provide surface area for air contact dissipation, yet still cant do 100% duty cycle, not when the diode is overdriven as we like them to be.

So as this will be for short duty pointing, likely a foggy night special, it just doesn't need to be all that bulky even though @ 1.8a and 4.7v it will take in 8.5 watts to output 1 watt so 7.5 watts of waste heat, compared to a 44 diode that takes in 4.5a at 5v yet puts out 7w so it has 11w of waste heat, not counting the drivers 5% the 1w greenie is not very efficient, this is why data projectors use big blues to pump phosphor....but the point is it will produce roughly 2/3 the waste heat of a 44 so....a short duty cycle is in the price for going semi compact, but the cells also lend to that end with the x-drive's cut off being what ? 6.8v

Should be a hot little super bright pointer, I do like the look of the skyray, I have a bdr-209 in one that I like a lot.

12114-405nm-bdr-209.jpg
 
Last edited:
Hi
GSS I think Red is describing the rear switch Sky Ray and it also holds 2x 18350’s , his will be 2 “ long with a copper core at 1-3/4 deep to keep that 200.00 diode comfortable. And a contact board pocket bored in for the board with focus adapter to

Rich:)
 
Last edited:
Oh ok:o, I don't have it as if you remember it was a gift to my brother inlaw, but is it basicly the same?
I'm going to find some pic's of it as even though it has a A140 at 1.8A the heatsink you made was a copper core one also and big and long:)
 
Hi GSS
Yes I remember that one clearly that’s a nice build thinking about making another in time.

Rich:)
 
The purple 501B M140 made it safe and sound.:)
Christened it by lighting a cigg:can:
Loving it and really need to get a foam lined box just for my rainbow colored collection of 501's all from you:eg:
 
I will post some build pics later, but as my diode is coming from China and it could still be a week or two away, here's a few pics Rich sent me of this Great looking skyray.

58881d1517522965-sale-thread-hosts-heat-sinks-focus-adapters-lasers-skyraybylifetime17.jpg
 

Attachments

  • skyraybylifetime17.JPG
    skyraybylifetime17.JPG
    161 KB · Views: 88
Last edited:
If you don't mind my asking, what did you end up paying for that NDG7475 at auction, RedCowboy? And are you sure it is the true 1 watt diode, or could it be a 700 being sold as the higher power diode?
 
  • Like
Reactions: GSS
I won it at auction for 103.50, and another just like it sold for 108.50, looks like Techhood was getting a jump on income tax refund bidding and the sale ended late night at a time when diode auctions had not been happening for a while. ( at least not the big ones )

So I scored a bargain, just so long as it's not DOA I will be ok.

I am going to run it at 1.8a just to be safe, I have an 1.8a X drive I bought from DTR that is brand new, that should be safe even if it turns out to be a NDG700 and give me about a watt either way.

On DTR's page 1.8a drives a 7475 at 1187mw and a NDG700 at 1026mw
 
Last edited:
I'd be interested in finding out which it turns out to be. Have you seen any more auctions like the one you won? :thanks:
 
You must log in or register to reply here.





Back
Top