260W IR Laser pump handheld?

[Unown (WILD)]

That's what scares me about NIR and IR. You can't see it so there's not even a reflex for it. Not that it would matter I guess but still.

 

[RedCowboy]

That's what scares me about NIR and IR. You can't see it so there's not even a reflex for it. Not that it would matter I guess but still.

Worst yet an innocent bystander wouldn't know there was a person lasing carelessly, if someone were to be lasing carelessly, so it's our duty to remind anyone interested to remember ((( Safety 1st ))) always and every time.

Now above 1500nm or so the light doesn't pass through our corneas and reach our retinas, so diffuse reflections are much less a hazard, this is why I hope the coming advances in laser welding such as portables, evolve into the 1550nm range.
Fiber lasers in the 1550nm range exist but are more expensive at the moment, but that could change.

 

[Borislav@87]

@RedCowboy
Lenses for our 9mm lasers do not last. They spray very quickly and at 50% of the laser power. The 260W one I haven't seen its full power yet because I can't get most of the 10 amps out of this power supply. At 18A these lenses will break instantly. So they drop out as an option. I'll think about what to do. I want something like in this video

Dấu hiệu của người cu-đơn, rảnh rỗi là lại móc hàng ra vầy | By Lăng | Facebook

Dấu hiệu của người cu-đơn, rảnh rỗi là lại móc hàng ra vầy

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Có lẽ sắp tới lại trend chơi laser nguồn bơm này ko chừng, lượn 1 vòng thấy nhiều ae mua về chế cháo phết. Nhưng để mà tìm ra loại tối ưu, hoạt động ổn... | By Lăng | Facebook

Có lẽ sắp tới lại trend chơi laser nguồn bơm này ko chừng, lượn 1 vòng thấy nhiều ae mua về chế cháo phết. Nhưng để mà tìm ra loại tối ưu, hoạt động ổn...

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Mua đc miếng ba chỉ là phải lôi máy ra tìm đối thủ ngay. Cỡ này mà đi hành nghề đốt mụn cóc dạo chắc có lẽ được 😆 | By Lăng | Facebook

Mua đc miếng ba chỉ là phải lôi máy ra tìm đối thủ ngay. Cỡ này mà đi hành nghề đốt mụn cóc dạo chắc có lẽ được 😆

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Đồ chơi mới, điều khiển từ xa, hehe 🔥🔥🔥 | By Lăng | Facebook

Đồ chơi mới, điều khiển từ xa, hehe 🔥🔥🔥

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[RedCowboy]

Yep, you need AR coated for NIR or non coated lenses.

 

[Borislav@87]

Yep, you need AR coated for NIR or non coated lenses.

The guy in the videos I gave also removed all the lenses. He also showed me how to add a 5mw red laser so I can see where the infrared world is.

 

[RedCowboy]

Here they glued in an SMA connector and here's a BE that attaches to sma905

https://www.aliexpress.us/item/3256808303959852.html?

https://www.aliexpress.us/item/3256807677867132.html?

 

[Borislav@87]

Yes, I saw I saw them on Aliexpress. Now I need to add a 5mw red laser to show me where the beam is pointing. That way it will be easier for me to experiment with the lens I have. I also found an ad currently selling a side of 3 lenses. He sells all three for $35

 

[Borislav@87]

I ordered this lens with 800mm focal length. I hope to achieve a good burn.

ZNK Fiber Laser Collimating Lens Focus Lens D16 F60mm D20F150 Quartz Fused Sillica For SUP20S/21S/21C/21T Laser Cleaning

https://a.aliexpress.com/_EwssOTI

 

[RedCowboy]

You want really good beam quality and much better divergence, you need to source the active fiber modules that are used in the 4 in 1 laser welders, they are getting more compact, less expensive and now offered as air cooled.

Active fiber ( double clad ) is the gain medium your pumps power to make a much higher quality beam, not a beam bundle, but a single high quality beam.

Should be able to find the source module for much less than half the sale price.
Of course in time used units could be repurposed.

US Air-Cooled handheld Laser Welding Machine 1200W Laser Welder for materials | eBay

Portable Air-Cooled handheld laser welding machine Laser Welder Wire Feeder Included. Lightweight and Portable: This air-cooled welding machine weighs only 32 kg, this laser welder machine is easy to move around for flexible usage.

www.ebay.com

1200W Laser Welder Machine 3 in 1 Welding/Cutting/ Cleaning Only Welding Machine | eBay

1200W 3-in-1 Laser Welding Machine. Laser Source Power: 1200W. [SUITABLE FOR PROCESSING MORE MATERIALS] The welder cutter can process materials such as aluminum, steel, carbon steel, copper, titanium, nickel alloys, etc.

www.ebay.com

 

[Borislav@87]

Today I bought these three lenses for 35$. The lenses are like new. I took them apart and removed the lenses. I left only the front ones with the option to adjust the focus. I will do tests when I have time. So far I've experimented with a green laser and things are working out pretty well.

 

[Borislav@87]

I did some quick tests with the lenses from the photo lenses and things are working out fine. When I have more time I will start making lenses from PVC pipes. I will try different combinations with the lenses because there are many and decide which ones to use

 

[Nickguy]

I did some quick tests with the lenses from the photo lenses and things are working out fine. When I have more time I will start making lenses from PVC pipes. I will try different combinations with the lenses because there are many and decide which ones to use

Hey, I bought a 280w pump source and I just want you do know you don’t have to buy fancy fiber cleavers. Use a razor blade to score the glass the snap it. You do need a tool to strip it tho, all the work is worth it though because I cut a razor blade

 

[Nickguy]

Hey, I bought a 280w pump source and I just want you do know you don’t have to buy fancy fiber cleavers. Use a razor blade to score the glass the snap it. You do need a tool to strip it tho, all the work is worth it though because I cut a razor blade

And uhh, how did you put in the red laser and take the fiber out I can’t figure that out

 

[Borislav@87]

And uhh, how did you put in the red laser and take the fiber out I can’t figure that out

Today I put the red laser as in the picture. I have 5mw lasers. I drilled a hole right in the middle against the mirror. I first drilled with a 4mm drill and then made a large hole with a 6mm almost to the end, because the laser is 6mm. Then I applied a two-component plasateline glue. I put a tree a meter apart. I turned on the laser and made a small burn into the wood. Then, without moving a thing, I set the red laser right in the center of the burnt spot. I fixed it with something handy and waited for the glue to harden. The other day I also put another plasticine type glue on top of it. Now the red laser is my guide and it's very easy with it. And about the fibers, they don't work for me in my case

 

[Nickguy]

how did you take the top off mine is glued on very hard

 

[Borislav@87]

how did you take the top off mine is glued on very hard

Take a picture so I can see which pump model it is