Scanners for The Doctor...

[absolom7691]

God knows why he doesn't have a set of scanners
He has thousands of dollars worth of lens ,diodes ,diode mounts
And a ton of other bits....

I too was amazed at the army of components he had in his possession! It looked like he was hoarding for the laser zombie apocalypse!

[Pangolin]

So far Woody has offered some amps, but doesn't have any cables to go with them. (Cables would be nice...) Is there anyone else here who might have some Chinese scanner amps they'd be willing to part with? (again, preferably with cables that go from the amps to the scanners)

[Galvonaut]

Hey Bill

I think I've got some amps but they are pretty crap and cheaper to buy new from China than be sent to the US!

I don't think putting your new scanners on such nasty amps is right but if nothing else comes up, let me know.

Keith

[michelrietveld]

love the spirit behind this

[Bradfo69]

Very nice gesture and based on the Doc's obvious knowledge, well deserved. I suspect there will be another thorough review coming as well. I'll check through the pile that is "Mount Lasermore". I know I have a set of scanners I bought with a bad galvo for the purpose of completing a laser harp kit one day. I "think" they were DT30's and the chances of me ever actually building the harp are probably slim, if I'm to be totally honest.

[The_Doctor]

I too was amazed at the army of components he had in his possession! It looked like he was hoarding for the laser zombie apocalypse!

Well, a lot of it wasn't that good. Only the most recently aquired stuff was, but people would have an easier time buying straight from Dave or DTR. And the older stuff? 3mm fl, acrylic, uncoated. Compete with newer glass coated lenses for usefulness and efficiency? I think not. 5mm PBS cubes with what looked like uneven MGF2 coatings, unwanted even before people wanted big cubes for large diodes with efficient multilayer dielectric coatings. Two old LambdaPro DPSS's, 100 mW, and one flickering old UGA whose power was never certain when I bought it second hand. This wasn't top dollar stuff. It was just a collection of all I could think of, after years of gradual collection.

Anyway, out with the old. In with the new? The old obviously wasn't all that useful, I don't recall a clamouring of eager punters before I caned that big buy-now thread off. So the question now is, can I make something good of something new. After all if I am helped it becomes a debt of honour so I better had.

[VDX]

... I have some really hefty Amps+PS from an old Scriba NdYAG-Laser with scanner-head -- don't think, that I will use them ... but the shipping costs could be maybe even more hefty ;-)

Viktor

[Pangolin]

I think I've got some amps but they are pretty crap and cheaper to buy new from China than be sent to the US!

On some level, it would be interesting to see what Compact 506 will do with a crap driver. But on another level, you might be right about shipping costs versus cost of a whole new pair...

Man, I'm thinking of so many things I've thrown out, even in the past year...

Bill

[absolom7691]

Bill, remember the PM I sent you on the Pangolin contact about some cheap PT-20 galvo amps? I can donate those to see if they are able to be converted. The output stage is a single LM1875T (http://www.ti.com/lit/ds/symlink/lm1875.pdf) that is only rated at 20W but I figure if it can push some cheap galvos to 20K, they should be able to do a decent job on some 506s. My only request would be that you publish the conversion notes. At any rate, from California to Florida should be cheap enough to send. What do you think?

PT-20 manual: http://www.te-lighting.com/eng/suppo...20Scanners.pdf

[Pangolin]

If you've got some cables for it, then I think it would be worthwhile and interesting to give it a shot. Yes, I'm familiar with that LM1875 part.