Response from M572, what is the second value?
-
Hi,
When I give the following command to query the current pressure advance:
M572 D0
I get the response:
Extruder pressure advance: 0.020, 0.000
When my pressure advance is set to 0.02. What is the second value? 0.000
I use RRF 2.02(RTOS) (2018-12-24b1)
-
There are 2 extruder drivers.
-
That looks slightly amiss to me. As @Phaedrux stated, what you are seeing is the pressure advance coefficient for both drives, even though specified "DO". I just checked on my machine in 3 extruder configuration and in response to M572 D0, I get "Extruder pressure advance: 0.400, 0.400, 0.400" and I get the same response regardless of whether I use simply M572 or M572 Dn (where n can be 0 to 2) so it seems that M572 on it's own reports the pressure advance for all drives and ignores the "D" parameter.
Edit - it's just how pressure advance is reported. You can still change the setting for any individual drive and it will work. In the example above, I entered M572 D0 S0.5. Then entering simply M572 reports back 0.500, 0.400, 0.400. So everything works as it should.
