Topics created by Nctogru

That depends on whether you are using your slicer to do the tool heating/cooling, or the tool change files.

I'm sorry, I don't understand your post. Please explain what you mean by "the head gets 3-4 mm high from the trays and I set it to be 1 mm between the card and the nozzle height".

You need to not have a space between S and the quoted string as Lakko says. If using YAT, configure it to recognise LF alone as a line terminator.

The manufacturer of the PT100 chips claims that the chips are protected against voltages up to +/- 45V on the PT100 terminals. The damage done to your PT100 board was almost certainly caused by the 3.3V power rail being shorted to a higher voltage.

The firmware source code for programming the attiny on the IT sensor board is on github along with the schematic I linked to earlier.

I'm sorry, I don't understand the problem. I typed 100 into the extruder steps/mm box that originally said 420; then when I generate the files, I get E100 in the M92 command, which is correct.

1. At which point in the instructions doesn't the system behave as it should?
Does the red led on the sensor light up when it is close to the bed?
If so, what Z probe readings are displayed in the web interface, when the led is on and when it is off?

2. Is the sound a gently hum or hiss, or is it a loud vibration?
Have you checked the gcode console page of the web interface for error messages?
Have you identified which pairs of wires from the motor belong to the same phase?

3. This is normal, the endstop switches are used for homing only. After homing, the axis limits set by M208 are enforced.