Fire :(

[PhillyDee]

The problem with fire sensors is the way they work, they either sense IR from the flame source or heat, both of which happen in a laser machine anyways

Best way to avoid fires? watch the machine..hence the big warning stickers on them

Yup, looked into a flame seeker type setup ran from an Arduino, but it would be no good.

As for the extraction, mine is excellent, a 420m3/hr vent on a 6" direct hole. It was so good, that despite the fact that I burned through half a 600x600mm sheet, and it turned the entire inside of the machine black with soot, I never so much as got a whiff of anything at all. And this was with about 20psi of air assist on a blade table with what, 12-14" gap underneath?

[Lightnin]

The problem with fire sensors is the way they work, they either sense IR from the flame source or heat, both of which happen in a laser machine anyways

Best way to avoid fires? watch the machine..hence the big warning stickers on them

Yup, looked into a flame seeker type setup ran from an Arduino, but it would be no good.

As for the extraction, mine is excellent, a 420m3/hr vent on a 6" direct hole. It was so good, that despite the fact that I burned through half a 600x600mm sheet, and it turned the entire inside of the machine black with soot, I never so much as got a whiff of anything at all. And this was with about 20psi of air assist on a blade table with what, 12-14" gap underneath?

[Lightnin]

I've also seen machines with web/mini cam's in.. so you can work on the pc and keep an eye on what's going on, either in a small window, or a separate monitor

[llamalasers]

Now that's a bloody good idea.

[LinkspanModels]

Just read all this and want to thank you all for opening my eyes!!!

New machine arrives Thursday (our first!) and CO2 extinguisher has been ordered.........

Just listen to the engineer he will go though it all with you
And enjoy your new toy i mean machine

Cheers Tom - Getting all excited now!!!!