Recent content by twelti

Just want to say that I still have an almost full tank of CO2 lasing gas mixture and a regulator and other misc stuff if anyone is interested. I hear helium is very scarce these days so this gas will be hard to source (it has some helium in the mixture).

Did you find gas for it? I had quite a heck of a time finding it myself. I have a tank, almost full, and regulator if you are interested.

I've ordered probably 15 times and had no problems. You get what you pay for I guess.

So far just manual control. I was thinking of using Arduino. I'm still trying to think of some clever and cheap DIY scanner, using speaker drivers. I have them laying all over the place at work.

No, no sarcasm. Here is mine: https://www.banggood.com/RGB-300mW-White-Laser-Dot-Module-Red-Green-Blue-638nm-520nm-450nm-TTL-Driver-Modulation-p-1252293.html?rmmds=search&cur_warehouse=CN

Oh, SNAP! I thought it was one of the many floating ads! Due, you really went whole hog.

Which RGB module are you using?

Yipee Cayay!!

Yes, I have seen that done on YouTube, using a balloon and calipers or something to measure diameter and calculate volume. I probably will try that but just thought this would be simpler to start. Does the pressure in the resonator change as the balloon deflates? You didn't mention N2? Is...

SOLVED I found a supplier. SCI Analytical (http://scicalgas.com/). They will mix whatever you need and ship it. Prices seem reasonable, and they are very hobbiest-friendly. I'm going to start with a known good mixture and get everything else working, then maybe experiment with my own mixes.

I may try that, it is hard to find a blend from these industrial sources, if you don't own a business

If the CO2 levels in the air go up enough, maybe I can use it for my CO2 laser! (and aim it at Anthony)

I found this on Alibaba: https://www.alibaba.com/product-detail/Laser-and-electric-light-source-mixed_60832442256.html?spm=a2700.7724838.2017115.169.66a442a7M899yF

I wonder if I just procured the individual gasses, and went into a welding or neon sign shop and asked then to blend it for me...?

Thanks for responding. As I said, I'm talking about a blend of gasses. They don't sell CO2 laser blends at a party store (unless parties have gotten a lot more "rad" since I was young! I have searched on Amazon, Ebay, Alibaba, various commercial companies (mostly they don't respond or want...