Scannermax 506s

[Pangolin]

Very impressed.

Thanks Kecked! And thanks for pointing out your projector project here:
http://www.photonlexicon.com/forums/...highlight=mini

[absolom7691]

I have not had time to post any pics yet but I will get around to it. As I have a set of DT-40s, PT-40s and now a set of 506s, I was able to run all three side by side. The 506s are running on PT20 amps with an 18v PSU. These are about the smallest and cheapest amps out there.

Here is and excerpt from a PM sent to Bill about the 506s:

I am absolutely amazed at the quality, precision and performance of these galvos. I am no pro but it isn't hard, for even the layman, to see and experience quality like this. Even running on these cheap amps, these scanners do extremely well, especially for only being 20W amps. While they can't scan as large (on these little amps) without losing a little bit of sharpness as my DT40s, they do seem way more accurate than my DTs when comparing both at their correct angles. My PT40s, as much as I have played with the tuning, are left in the dust. The electro-mechanical shortcomings of the PTs make them completely inferior to the 506s and the DT40s. I think what amazes me most is that the 506s produce next to no heat which blows my mind! I can pump out a huge scan angle with them and nothing shuts down, overheats or seems to be stressed. Cheap Chinese amps, cheap Chinese PSU and these things kick out amazing performance! My DTs can't even compete without getting EXTREMELY warm.

[f150trk21]

So what does the beam height need to be for these scanners?


thanks

[absolom7691]

So what does the beam height need to be for these scanners?

Just a tad over 18mm. 18.5mm, if I had to guess.

[Pangolin]

So what does the beam height need to be for these scanners?

See this PDF file (linked from our web site):
http://www.scannermax.com/pdf/C506_30_XY_Mount_RH.PDF

[planters]

Note that height is for the 3mm aperture. Because of the canted X mirror the 5mm aperture should move toward 18.5mm and that's what I am seeing.

[kecked]

I took my new projector over to Matt Polaks shop yesterday. He was blown away and wants to buy a few sets of the 506. I have not seen him that excited about laser in many years. I had them next to my 6215 system and besides being able to make a larger image, you really have a hard time telling the difference in image. The difference between 6800s and these is huge. the detail in small step from 506 is much better and more accurate then the 6800s and nearly as good as the 6215 if not equal at 30k. I wish I would have had a camera to take pictures.

[MIIKKKLLLL]

I have a question regarding the mirrors.

I noticed frightful losses with 447nm wavelength as high as 13.5% with PT scanners familly (7% per mirror) at 45° / 45° reflexion. Can someone measure the real losses with a 445-450nm blue diode?

>500nm wavelengths shouldn't be problematic... but you are welcome to measure the efficiency for green and red wavelengths, just to be sure .

Thanks,
Mike

[Pangolin]

Hi Mike,

As far as I have seen, mirrors are a real challenge for everyone, that's for sure -- especially for scanners sold at Bargain Basement prices. Up until now we've used a company in Shanghai who seems to do really good work. We've sent our mirrors to some clients that were actually able to burn through Cambridge mirrors, and they confirmed that our mirrors were better. Regarding reflectivity tests, we do this ourselves, and reflectivity in the blue region you're talking about (and I use that region myself) is 98% or better. Also, some of the early adopters of our scanner have been 3D printer companies that actually use 405nm lasers. Our mirrors still work for them.

The coating is specified for 400nm to 700nm, so 445 is well within that range.

We're also having a UK mirror supplier make up a bunch of special silver coated mirrors for us. These are more expensive, and will be used for industrial clients who use not only visible but also infrared wavelengths.

Bill

[MIIKKKLLLL]

Thank you Bill for these explanations and details about the mirrors installed.


Is there a third party motivated to measure these values ​​accurately?