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Old 03-09-2017, 09:11 PM #353
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Default Re: My Monster 6+ watt Laser Build Has Started !

RedCowboy ^^ the 44 build is nice what was the duty cycle, makes me thing you may had it ultimate !


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Old 03-09-2017, 11:40 PM #354
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Default Re: My Monster 6+ watt Laser Build Has Started !

My heavy heat sinks such as 2.5 x 2.5 is 5 minutes and 2x2 with a long 1/4 thick sleeve will run close to 10 minutes on the cool days, but 3 x 26650 are a must.

I would like to find some 5x expanders that are at least 50mm wide, that would make setup less critical.
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Old 03-10-2017, 04:36 AM #355
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Default Re: My Monster 6+ watt Laser Build Has Started !

Quote:
Originally Posted by RedCowboy View Post
My heavy heat sinks such as 2.5 x 2.5 is 5 minutes and 2x2 with a long 1/4 thick sleeve will run close to 10 minutes on the cool days, but 3 x 26650 are a must.

I would like to find some 5x expanders that are at least 50mm wide, that would make setup less critical.
After getting the linos your not sounding too enthusiastic, what the biggest problem you see with it ?


Quote:
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Nice work, even for a guy with a thumb that bends backwards. Rep when I can.
You ain't seen nothing yet ! lol My backwards bending thumb is just one of the many things that makes me freakishly great at working on whatever it is that I'm working at the moment and with building things !

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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - LSP 4X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

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Old 03-10-2017, 05:18 AM #356
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Default Re: My Monster 6+ watt Laser Build Has Started !

I've never had a wife that didn't have a backwards bending thumb, and I've had lots of them, so quite used to it, but I still call them monkey thumbs.
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Old 03-10-2017, 05:36 AM #357
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Default Re: My Monster 6+ watt Laser Build Has Started !

i have some plastic lenses got it form projector for walls you can see pictures on the wall, i have binoculars the have red lenses glass wonder if i could make a been extender
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Old 03-10-2017, 07:26 AM #358
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Default Re: My Monster 6+ watt Laser Build Has Started !

Quote:
Originally Posted by Alaskan View Post
I've never had a wife that didn't have a backwards bending thumb, and I've had lots of them, so quite used to it, but I still call them monkey thumbs.
In don't know for a fact but I don't think monkeys have opposable thumbs or what they do have can bend backwards ?

I think it must be a trait that only very advanced people have ? A more accurate description would be "Highly Evolved Thumbs" !
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - LSP 4X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

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Old 03-10-2017, 10:16 AM #359
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Default Re: My Monster 6+ watt Laser Build Has Started !

This Linos BE is a 2x - 8X but apparently it's made for a much smaller beam because the 2 to 8 adjustment are both small lenses, I may use it as 2x or junk the input or relay lens and just use the larger output lens along with, hell maybe a double concave of my own.

There are only 3 lenses, the 2 end caps hold lenses that fit helical threads on the center stalk that holds the relay lens, I thought maybe the input would shrink the beam small enough to range it across the relay but my output is clipping in all but 2-2.5x I just need a physically wider expander to work with these MM diodes, really a fixed 5X that's 50mm wide across the output lens will work fine.






p.s. That test bed got hot in 10 minutes, without active cooling these nubm44 diodes just put out 16 watts of waste heat and slowly warm anything, unless you have a chunk the size of a table top to dissipate that 16 watts into the air then any hand held will just act as a heat reservoir, although fins help a lot, fins are surface area multipliers that act as heat vehicles, fan forced air across fins is how the projectors keep a bank of diodes in operating temp, but they are not overdriven....actually the new projectors use heat pipe and radiators with fan forced air. But if you look at the finned mount that the 44 diodes come from it looks like they are made to run pretty warm, mine except one that I contaminated and cracked the window on have been super tough and lasted through a lot of heating and cooling down and they still burn like new today, the 44 is a tough diode, but don't get anything on the can's window, 7 watts will burn through it.
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My Monster 6+ watt Laser Build Has Started !-sany0468.jpg   My Monster 6+ watt Laser Build Has Started !-sany0469.jpg   My Monster 6+ watt Laser Build Has Started !-sany0470.jpg   My Monster 6+ watt Laser Build Has Started !-sany0471.jpg  
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Old 03-10-2017, 10:31 AM #360
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Default Re: My Monster 6+ watt Laser Build Has Started !

Well that's a little disappointing, I was hoping it was going to work great because I have seen others like it on Ebay and the prices weren't sky high.....
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - LSP 4X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb
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Old 03-10-2017, 11:16 AM #361
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Default Re: My Monster 6+ watt Laser Build Has Started !

Maybe if you defocus your beam, but that's not the right way, I want to fire in my corrected beam and expand it then focus it to a point at distance, I simply need a wider output lens, I will bench test the input and relay and see what I get out, but between the input and relay the beam has to be within the design parameters, mine apparently isn't, and defocusing a non corrected beam could work, the total working distance would be short, plus why shrink the beam needle thin inside the expander to work with it?

This is all I need, by moving the output lens fore and aft the far field focal point is determined.





I prefer the Galilean ( BOTTOM ) over the Keplerian Telescope ( TOP )



Now you can use a wider lens and deal with our MM diodes raw output because it's already expanding, but one axis expands much more rapidly than the other, so for better results we want to correct that rapidly diverging axis then use a Galilean telescope.
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Old 03-10-2017, 11:54 AM #362
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Default Re: My Monster 6+ watt Laser Build Has Started !

One of the biggest problem it seems to me is the laser beam comes out of the diode fanned out so that has to be straightened out before it comes in the expander ?
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - LSP 4X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb
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Old 03-10-2017, 12:35 PM #363
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Default Re: My Monster 6+ watt Laser Build Has Started !

Yes I am firing a 6X Cyl corrected beam into it, for all practical purposes its a rectangle shaped beam with low divergence.
It's just not the right expander, it can be made to produce a tight spot, but the power is not there, it's mostly clipped, the spot I want to see should be a tight little rectangle, if it's round they there's a problem....now in my videos the spot looks round, but it is not, if I had a better quality camera you would see the little burning line.

So some guy in the Philippines sold me this well used expander, My offer of 30 dollars was accepted plus 40 more for shipping and it came DHL in about 4 days, so I will just keep it, it was marked to be used as a pocket telescope. Set at the red paint marks it works as a telescope. LOL, I will just eat it, hell maybe use part of it, hopefully someone got a hot meal out of it.

p.s. The fit and feel of the thickness of the material and the smooth/sturdiness of the threads is amazing, twisting it feels good after all this time, these were well made.

And it works great with a 650nm red.

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Old 03-10-2017, 04:46 PM #364
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Default Re: My Monster 6+ watt Laser Build Has Started !

Well the Monster host is completely finished But I'm still waiting on the dang aluminum tube to clear customs or I could be firing it up today !!!




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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - LSP 4X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb
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Old 03-10-2017, 05:21 PM #365
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Default Re: My Monster 6+ watt Laser Build Has Started !

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Originally Posted by Accutronitis View Post
Well the Monster host is completely finished But I'm still waiting on the dang aluminum tube to clear customs or I could be firing it up today !!!




Still thinking that one of the awesomeist sinks I've seen. Looking forward to hearing how it functions

Waiting is the hardest part, hope it shows up shortly.
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Last edited by BobMc; 03-10-2017 at 05:22 PM.
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Old 03-12-2017, 04:53 AM #366
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Default Re: My Monster 6+ watt Laser Build Has Started !

Remember to use paste between the heatsink and the module /CPU paste
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Old 03-12-2017, 05:06 AM #367
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Default Re: My Monster 6+ watt Laser Build Has Started !

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Originally Posted by GSS View Post
I don't even have a vice nor a bench for it Well at least where i'm living now..
As Harbor Freight Tools has been a blessing for this hobby, even going to the local dollar stores iv'e found things that come in very handy.
Isn't it though a good feeling doing things with stuff out of a junk draw
I like to use the cheapie Harbor Freight dremel and as silly as this sounds as its under powered and tends to bog down, it helps from grinding off to much by mistake.
Also when your hands are all nicked up after during things with what you got is a reward
Hey I'm staying in the USA during the sooner half of this week, and planning a trip to the "dream store" Any tips on what to look at?

Quote:
Originally Posted by Alien Laser View Post
cool idea i accidentally hit my hand with a push button 7W hurt for like 4days feel like a needle going threw my hand forgot to turn off the safely switch and my finger slipped on the push button
I remember screwing around with a nubm44 box build I got from one of the members, and the beam burnt me straight through my finger nail. That was certainly a unique type of pain! I had my goggles on so the output wasn't as apparent that the beam was going straight into my nail
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-=====[]
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632.8nm: Melles Griot HeNe, 1mW
532nm: Custom made GITD Pocket laser: ~133mW
532nm: Chrome laser pen: ~50mW
532nm: eBay 303: ~60mW
465nm: 07E Laser Box Build: 4W
462nm: M462 Pocket Build: 1W
450nm: Stainless Steel NUBM44 Handheld: 6.8W
445nm Pocket Series from Podo (Sanwu): 500mW
405nm: eBay pen

Keep yourself safe. *link*
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Old 03-12-2017, 05:11 AM #368
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Default Re: My Monster 6+ watt Laser Build Has Started !

EP ohh it must hurt ha
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