I have been wanting to upgrade the wimpy fluorescent lights in my house for a long time, but 2'x4' LED panels are expensive. I found a really good deal on some Cree panels so I bought enough to replace all the ones in my house. I wanted them to be smart compatible so I could use alexa to dim them and turn them off/on. Unfortunately These are commercial lights so they use 0-10v signals for dimming. I could not find any smart home compatible 0-10v dimmers so I set about building my own.
For my laser cutter, I did not want the fume extraction system to be open to the outside when the laser was not in use. I added some blast gates (valves) to the piping but did not like having to manually open them because they are behind the machine and hard to reach.
I came up with a method of m...
Building a custom control box for a laser cutter/CNC combo machine using a smoothieboard.