Laser lensprice

Have any of you guys tried Russ’s SarbarMultimedia compound lens system? Cloudray Compound Engraving Nozzle Set Lens Diameter 18mm 20mm with Compound lens for Laser Engraving Machine https://www.amazon.com/dp/B07KC58TDQ/ref=cm_sw_r_cp_tai_lxACEbR7RFSKH image2388×1523 824 KB image926×954 115 KB

Co2laser lens

I thought he had a problem with the lower lens being damaged by the reduced beam size from the first lens. Has that problem been solved?

Bestlaser lens

Our two head big Green Machine is due to arrive in Los Angeles Port from China Tuesday and with a bit of luck we should get it delivered in Portland 3.28. I am very interested in upgrading the engraving head so I’m doing research on the nozzles. Until your post @Grumpy_Old_Man I did not know that there was another option over the Russ/CloudRay upgrade.

That looks like it’s made to ride on some kind of V rail with those rollers on the back side. Wouldn’t mount to his linear rail block. ??

Laser lenstypes

“Meniscus lenses are designed to minimize spherical aberration producing a minimum focal spot size for incoming collimated light.”

My problem is I have 12 mm lens. HARD to find but I did, at Cloudray Laser and ordered a 12 mm CVD ZnSe meniscus lens, until I can find a new laser head that I can use. My laser head attaches different than most, it’s a Samger 80 watt. LightObject was no help at all, here is a picture picture20200318_1344023024×4032 2.29 MB anybody know of a replacement head I could use so I can get a larger lens?

Laser LensMinecraft

Have you taken the head off to see how your round tube is attached to the bottom of the block? Possible to maybe just replace the tube? What’s the bottom side look like?

Laser lensIndustrial Foregoing

US $23.50 6％ Off | Will Feng Laser Cut Head Fit 45mm Outer Rail Mirror Dia 25mm Lens Dia 20mm FL 50.8/63.5mm For Co2 Laser Cutter Engraving Machine aliexpress.com US $23.5 6% OFF|Will Feng Laser Cut Head Fit 45mm Outer Rail Mirror Dia 25mm... Smarter Shopping, Better Living! Aliexpress.com

I use ii-iv lenses exclusively in my lasers, and we have been using custom manufactured lenses from ii-vi infrared for the Beam Buddy high resolution laser heads that we sell. I can not speak highly enough about the quality of the i-vi lenses.

I saw it on one of his videos, shortly after he installed the compound lens (which did give him excellent results) he noticed the focus abruptly changed badly. When he took the lens out to inspect, he saw that the lower lens had a large circular dark spot in its center that could not be cleaned. He guessed the beam power entering the second lens was just to much for the lens material to handle.

The lens getting damaged is one of the drawbacks of the design. The Beam Buddy high resolution laser head I sell does not flat pack the lenses like Russ’s, and uses custom manufactured USA ZnSe AR coated meniscus lenses that have an air gap between them in a solid aluminum housing. The lenses are rated for 150W power handling and stay very cool with the air assist on and the air gap between lenses.

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