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Spec had to take some drastic action a little over a week ago, as someone was hammering the forum with hundreds of thousands (!) of simultaneous connections, which made the forum completely unresponsive. (He figured someone was trying to scrape all the text to train a large language model, but...

I have a pair of the 7.5 watt LaserCubes, and I've been very pleased with them. They are by far the smallest projectors I own, and yet their performance is quite impressive. (For comparison, I've got close to 20 projectors in my collection, ranging from 300 mw up to 30 watts, although about a...

I know I'm late to this thread, but I just had to state once again how *awesome* it is that we've got Steve Roberts (Mixedgas) here on the forum. Where else would people be able to tap in to such a wealth of knowledge and experience? Steve - once again you've delivered (in spades!) on our...

lasermaster and Steve, thank you both for taking a look and explaining it to me! Much appreciated. Sounds like both of the brown-white wires I'm looking at are shields. I'm going to see if I can get any more clues on what modifications they made from the factory model by peeling back the shrink...

If you do not mind his high price, you can directly go to the official website to buy

Oh, the horror, working on a G120 without much of a visual clue, well, here is a thread with some internal pics. https://photonlexicon.com/forums/showthread.php/23174-How-to-open-a-GSI-Lumonics-G120DT-laser-scanner?highlight=g120 I don't suggest opening them. Steve

The two oranges are the heater. Usually an internal thermistor is present, which is a bit of a baffle for me, but I bet white/brown is a shield and may carry a ground signal. Thermistor is blue-blue on heated G120 galvos. My guess is the existing amps are not using the AGC or the purple AGC...

My best guess without an ohm meter is brown-white on the feedback bundle is a grounded shield connected to braid. Based on the heat shrink. On the feedback cable, Brown, White, Red and Black are just enough to use a G120 a position sensor if they did something with orange and purple in the...

@sheral thanks for the photo. Well it is certain that the sheathed cable opposite the heater blanket orange wires contain the coil wires +1 (white/brown). I've never dealt with the G120DT before. The position feedback sheathed wires are ("appear") associated with it. The thermistor must be...

Here’s a better picture. The heater blanket wires are fed back into the place where the drive coil cable emerges (the thicker cable). I don’t see any wires for the thermal sensor on the galvo. I also have the feeling that perhaps the heating isn’t being used as there’s only 10 pins. But I would...

I deleted my original reply since I felt it possible I was missing something. The G120DTs had a heater blanket (two wires - voltage input) and a thermal sensor (one wire and common ground - voltage output), the two working together to provide thermal regulation. You connector has 10 wires and...

Yes, my galvos have the heater with two red wires coming out of it (see attached photo). Do you think the white/brown wire alongside the 4 coil wires relates to the heater wires? And sounds like the white/brown cable on the position feedback cable is the shield, am I understanding that...

Hi Steve, I've been trying to understand my galvo connections because the ones I have don't have a DB15M terminal. These galvos end in a 10-pin connector. I've been able to figure out most of the wires, but there are two that are white with brown stripes that I'm having trouble with (shown in...

You can buy it here: https://pangolin.com/pages/collections

Since even the updated link doesnt seem to work anymore: Does anyone still happen to have Zoof's magical .exe laying around? :confused:

I am a laser engineer from China, recently paid attention to this forum, (language registration took me a lot of time, the translation is not very accurate.) If you need anything, you can contact my WeChat and his number is pingye1778. Or on facebook: Ping Deng.

Not sure what that is, but I have a bunch of hardware that fits that description that I've accumulated over the years...

Brian, among the materials I received from you there is a big heavy oddly shaped but symmetrical metal thing that I'm guessing is a dual polarity power supply of some kind. Do you remember any details about what that is and what it is for?

Will be great to have you back, Rodney! The new venue is *soooo* much nicer... :) Adam

The Exploratorium has long had a large harmonograph on the museum floor. I have included the construction details below for any interested parties. It's very popular with the public! Ron --

Chicago USA or Poland in Europe, looking two pieces of .net box - - - Updated - - - And Copenhagen also next week :D

Thanks Steve. I'm glad to hear that it is a shared experience. I too am grateful to the benevolent people who maintain this site.

I've had in and out hosting issues often. I thank the benevolent persons who keep the site up. Steve

can be we have more laying. Need to check. Where are you located ?

Thank You :) JackZG