Hack Chat Transcript, Part 2

A event log for Putting Lasers to Work Hack Chat

Lasers 101

dan-maloneyDan Maloney 03/03/2021 at 21:050 Comments
Jonathan Schwartz12:50 PM


@Jonathan Schwartz - Are the machines you use/sell/service mostly X-Y gantry-type with the laser bouncing around between mirrors? Or are there any galvo laser cutters out there on the market now that are worth looking at?

Jonathan Schwartz12:52 PM
Still the XY gantry type. I've seen some demonstration of those galvo cutters and they are definitely going to be the wave of the future but I still haven't found somebody that really sells them.

Joseph Stavitsky12:53 PM
@Jonathan Schwartz What's your general strategy for dialing in settings for a new material? Or are there no "new materials" at this point?

scubabear12:54 PM
@Jonathan Schwartz On the lasers on your site you have an option to upgrade the optics; what does that consist of? How bad are the original optics?

W5VO12:54 PM
What materials should the laser optics use (mirrors, lenses)

Jonathan Schwartz12:55 PM
There's definitely variances between materials so you have to dial it in all the time.

Jonathan Schwartz12:55 PM
I set up a sheet with power settings for each of my machines

edmeme12:55 PM
I was wondering about safety equipment, the price range of safety googles is very large. Anyone can give me a hint on how much is reasonable to spend and what to consider?

Jonathan Schwartz12:55 PM
You just have to kind of go with what you know works for something else and then dial-in

Jonathan Schwartz12:55 PM
Gold or copper

Jonathan Schwartz12:56 PM
Make sure you have a CO2 for extinguisher if you do this stuff. Other than that you don't really need anything

Jonathan Schwartz12:57 PM
Goggles are nice but not necessary as long as your machine has a lid

Starts asking "Why CO2?" then remembers the mess dry powder extinguishers make...

charliex12:59 PM
i like having a fire blanket next to my lasers as well, good for small localised

Nicolas Tremblay12:59 PM
not to mention it's corrosive

Jonathan Schwartz1:00 PM
Sometimes you can also pick up the wrong type of extinguisher and you can actually electrocute yourself trying to put out an electric fire

Jonathan Schwartz1:00 PM
Fire blankets are good

W5VO1:01 PM
It's a CO2 extinguisher because it's a CO2 laser. You gotta match the extinguisher medium to the laser. *runs and ducks*

Well, I've got to say that was one of the livelier chats we've had so far this year. People really seem to be into laser cutting, and I want to thanks Jonathan for coming on and sharing his experience. The Hack Chat is always open, of course, but we've got to let Jonathan get back to work now. Thanks to everyone for the great questions too!

charliex1:01 PM
it helps with the co2 assist

mike.halward1:01 PM
Thank you Jonathan very helpful

charliex1:01 PM
cheers jonathan

Dusan Petrovic1:02 PM
Thanks @Jonathan Schwartz !

Joseph Stavitsky1:02 PM
@Jonathan Schwartz I work with a full fabrication facility including a large Epilog unit with full industrial exhaust. I'm on the East Coast (NYC area) but I think there may be some ways we can help each other. Would you care to give some contact info?

Jonathan Schwartz1:03 PM
sure You can contact me through

Nicolas Tremblay1:03 PM
Thanks @Jonathan Schwartz

I'll post a transcript in a few minutes, btw.

And next week will be a cool one too -- talking to John McMaster about decapping chips and other components!