Topics created by Lem

@Falcounet Ok, I try to reproduce error and save snippet but probably I will post the same info like on photo above.

Apart from this, can you tell which way of object model subscription is the best?

Option 1:

if __name__ == "__main__": subscribe_connection = SubscribeConnection(SubscriptionMode.FULL) subscribe_connection.connect() while True: time.sleep(1.0) object_model = subscribe_connection.get_object_model() [...] if script_end == True: subscribe_connection.close()

Option 2:

if __name__ == "__main__": subscribe_connection = SubscribeConnection(SubscriptionMode.FULL) while True: time.sleep(1.0) subscribe_connection.connect() object_model = subscribe_connection.get_object_model() subscribe_connection.close() [...]

Option 3:

if __name__ == "__main__": while True: time.sleep(1.0) subscribe_connection = SubscribeConnection(SubscriptionMode.FULL) subscribe_connection.connect() object_model = subscribe_connection.get_object_model() subscribe_connection.close() [...]

@dc42 This duet behavior is now clear. I will connect heaters in parallel, current will be less than 5A. Thank you!

@phaedrux I'm using Simplify. I add new one gcode in Python DSF which set temperature for all beds and replace M140.

But I still don't understand why it's impossible to configure multiheater bed. For extruders it works nice.

@lem when you connected the 100 ohm resistor to RTD2, did check that the two jumpers for that channel are in place on the daughter board? If so, please send an email to warranty@duet3d.com and include a link to this thread in the email.

@dc42 I have too weak power supply so I have to heat chamber only if bed is not heated. Earlier I did it in firmware but it will be nice to do it in Python script.

@lem said in Save Z position when shutting down:

which macro / file / command is executed while shutting down?

Usually none. My printer has a separate PSU for the Duet, so that I can shut-off power for steppers and heaters with M81, but I can as well turn the mains switch or pull the plug.

Either you save the positions in all situations you can think of - end.g, pause, resume, abort, M911 … but you won't catch all possible events. Or you always invoke a macro before you plan to shut the printer off.

A better way is to use some "auxiliary end switch" for Z so you have a known height before doing the "real" homing - this can be anywhere along the Z axis.