LukasekP It doesn't. Such a printers have a switch or proximity sensor near the tip of the print head that “probes” specific points on the platform when the bed levelling process is first initiated. This model has none one.

LukasekP This unit consumes 12V x 15A x 2 H = 360 Watts per two hours, but it must be powered by stabilized source, which would consume even more. So let say that answer would be somewhere bellow 500 Watts i.e. 0.5 kWatt per day.

LukasekP About twenty amperes I guess. Higher current impulses could destroy the balancing circuit.

LukasekP Given the power load 35 W and impedance bellow 20 Ohm the voltage should be bellow 25 Volts

LukasekP How to use: 1. Fill in 250ml ethanol; 2. Headstand a while to soak the wick; 3. Fill ethanol in the plate; 4. Ignite, if you don't succeed, try again 5. After using, leave it cool down