> On Sep 4, 2021, at 10:00 PM, David Forbes <[email protected]> wrote: > > So I started building my own > laser cutter in 2019, then I had to build a workshop to house it, then > the pandemic...
I'd like to know more about your cutter: work area, power... A friend of mine bought a generic K40 recently and I'm hoping to be able to use it once he gets it dialed-in. 8" x 12" is large enough for anything I'd want to build. OTOH, 40W may not quite "cut it" in the case of the thickest acrylic I might need. > The circuit board uses a custom power supply transformer to make the 5 > voltages needed form a 12V wall wart. The CRT is a 3RP1-A with a real > socket. Any possibility of a 5" version? I have a CRT (plus shroud) with that funky dual phosphor combo. A fast blue and a slow yellow. A pendulum would be interesting to watch. > The computer is a Teensy 3.6, which has the horsepower and two > DACs to allow circle and line generation in firmware. The code will be > open source. I have already started to write a Pong game for it. Four > letter words and haikus are on the horizon. What DACs are you using? I can make out some quantization in pictures of 3" clocks so 5" would be worse. 12 bits might make a huge difference and I'd be willing to pay more for that. And the big question: thru-hole or SMT? I'd also love to have analog XY inputs for my Oscilloscope Artist. I'll talk about that in a separate thread. Terry Bowman, KA4HJH "The Mac Doctor" https://www.astarcloseup.com “...the book said something astonishing, a very big thought. The stars, it said, were suns but very far away. The Sun was a star but close up.”—Carl Sagan, "The Backbone Of Night", Cosmos, 1980 -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/7903E669-7122-417C-8267-7AF770862F98%40gmail.com.
