Re: CNC Pyrography Experiments
Im using 12V because I had a 12V 30A one and all the larger ones 24V, 36V, and 48V were much larger. The 12V 30Amp seemed to be a good choice for my first round of experiments. I think on my next build I will be moving to something in the 60Amp to 100Amp range. I will look at what is available for a reasonable price.
Getting the temperature is no problem. I have thermocouple rated to abut 1300 degrees strapped to the resistance wire. Seems to be working fine, for now. By the way that is kind of how the temperature sensors work on soldering irons. They literal attach a dissimilar metal to one of the electrodes on or in the cartridge.
My big obstacle right now is coming up with a mounting method and controlling the heat it puts out. I am going to start with a small fan pointed directly at the terminal block. It is not that big of a deal, as I already have a 12V accessory plug for my Z axis. Once I get the fan setup, I will start with the same 10 minute test and work my way up.
Author of: The KRMx01 CNC Books, The KRMx02 CNC Books, The KRmc01 CNC Milling Machine Books, and Building the HANS Electric Gear Clock. All available at www.kronosrobotics.com