Move exceeds maximum extrusion
I am getting the error message "Move exceeds maximum extrusion (0.361mm^2 vs 0.080mm^2)
See the 'max_extrude_cross_section' config option for details"
I have just changed from a 0.6mm nozzle to a 0.25 mm nozzle. I get this error immediately after printing the prime blob I have changed the nozzle size in printer.cfg and I have changed the line width in Slicer. I have reduced the speed to 20% in Mainsail Not sure what to try next.
I have just changed from a 0.6mm nozzle to a 0.25 mm nozzle. I get this error immediately after printing the prime blob I have changed the nozzle size in printer.cfg and I have changed the line width in Slicer. I have reduced the speed to 20% in Mainsail Not sure what to try next.
20 Replies
Why is it faster to change it manually instead of through the configurator?
Because you have to step through all the screens on the configurator.
..and it wants to check the version of your MCU board set up, etc.
I will often change nozzle sizes three or four times a day. So it is just quicker to do it in the printer.cfg file.
looking at the macro it should take into account the nozzle size, https://github.com/Rat-OS/RatOS-configurator/blob/bdffe0299685f3c223bad5a3c556e4afe9b1881e/configuration/macros/priming.cfg#L445-L467
Can you upload your debug.zip?
A side note for future readers (not OP): if you're using IDEX/VAOC, according to Mikkel, nozzle size changes need to be done via the configurator for VAOC to work properly.
Yes, attached.
the log doesn't contain the "Move exceeds maximum extrusion", can you grab it after you reproduce the error?
I'm running into the same issue. have an IDEX 500 and it errors as soon as it starts using the second extruder during the print. It does the blob and purge just fine. The frustrating part is it was printing perfectly fine before. I can't find any changes in the Prusa Slicer but now it errors out every time... 😕
This is the error message from the console:
3:00 PM
Move exceeds maximum extrusion (1.915mm^2 vs 1.440mm^2)
3:00 PM
Move exceeds maximum extrusion (1.915mm^2 vs 1.440mm^2)
See the 'max_extrude_cross_section' config option for details
open your own thread please.
Not sure how IDEX works but it can be related to pressure advance. It is possibly not setting pressure advance correctly for the second head.
@MFBS you need to run the configurator again changing the nozzle size. This calculations are done automaticaly by ratos.
That would be pain in the neck to have to do that each time I change nozzle size. All I need to do when swapping between nozzle sizes for other nozzle sizes is just change it in printer.cfg
[extruder]
nozzle_diameter: 0.4
But when I change it to 0.25 I have to do the following.
[extruder]
nozzle_diameter: 0.25 #faster for me to change nozzle size here than in the RatOS configurator
max_extrude_cross_section: 0.4 # only required if usihg 0.25 nozzle to print prime blob.
I think the issue is in the prime blob macro.
Ideally you would want to have to only change the nozzle size in Slicer to achieve both of the above.
Exactly. The issue is the blob because RatOs thinks it is using a different nozzle.
Check both configs agter runing the configurator and you will have the correct values for each nozzle and you can add them after a # in printer.cfg
Remember, RatOS is made for a novice user ti have no issues with configs. More advanced people can do whatever they want when it is possible.
Can you not just click on the hardware section change the nozzle and save?
You always need to finish the configurator. Otherwise nothing is done/saved and the new config files are not generated.
Ye I’ve been switching between fan types, another story.
Just change from PWM - Input voltage, hit next and the save the final config.
"both configs"?
What do you mean by both configs. Surely it only produces one config each time you use it?
For both nozzle sizes. Take note of the values and use them as you are using currently.
Exactly, save the final config in order to generate new files.
Its an OK hack but not novice or user friendly. you don't need to do that on other printers....you just select the nozzle size in Slicer....just saying....don't shoot the messenger.