chamber vent control  

RE: chamber vent control

Based on earlier reports, you've installed the vent incorrectly.  Double check the orientation.
Are you seeing the nextruder move left then back to the right prior to print starting?

RE: chamber vent control

Yes, the extruder moves to the right and then to the left but it does not hit the vent index. I have turned the vent plate around but no success...

RE: chamber vent control

I had modified the printer gcode to include a nozzle wiper on the left side of the printer: could that be a problem?

RE: chamber vent control

I have gone back to the original prusa printer gcode (for core one but i do not see a core one+ version...) and the vent is still not operated. The extruder does not move from right to left before printing...

SdeL

RE: chamber vent control

I had this too. I missed the upgrade step to flip the vent cover before reinstalling. That was the solution for me.

RE: chamber vent control

What I find strange is that the extruder does not move from its "pre-printing" position on the right to the left where the finger operating the vent is... Just a if it did not know this is no longer worked with a core one but a core one+... I suspect I do not have the right gcode....

RE:

Posted by: @sdel

What I find strange is that the extruder does not move from its "pre-printing" position on the right to the left where the finger operating the vent is... Just a if it did not know this is no longer worked with a core one but a core one+... I suspect I do not have the right gcode....

Whether the vent opens or closes depends on what filament is loaded. You can test this in two ways, you can create a .gcode file and print it or you can attach a USB-C cable, open a terminal application and type the commands. For example:

; Manually close the vent to start the test
M870 O    ; open vent
G4 S2     ; wait 2 seconds
M870 C    ; close vent

RE: chamber vent control

Thanks a lot for your reply! Can you explain better how to run the tes: for instance, should I include the commands suggested in my current printer gcode? if so, where in the gcode? Would the following be OK:

{if filament_type[initial_tool]=="FLEX"}G1 E-4 F2400 ; retraction{else}G1 E-2 F2400 ; retraction{endif}

M84 E ; turn off E motor

M870 O ; open ventG4 S2 ; wait 2 secondsM870 C ; close ventG0 X76 Y-18 Z1.0 F10000;G0 X40 Y-14 Z1.0 F10000;G0 X76 Y-18 Z1.0 F10000;G0 X40 Y-14 Z1.0 F10000;G29 P9 X208 Y-2.5 W32 H4 ; original nozzle cleaning methodG0 X40 Y-14 Z1.5 F10000;

Sylvain

RE:

Just send exactly as above in my post.  

Posted by: @sdel

Thanks a lot for your reply! Can you explain better how to run the tes: for instance, should I include the commands suggested in my current printer gcode? if so, where in the gcode?

RE: chamber vent control

I did and it did open the vent... but did not close it.

Thanks again for your help!

ylvain

RE: chamber vent control

Has anyone noticed the auto vent control not working properly with recent firmware or slicer updates? At some point, my CoreOne started closing the vent before printing PLA. I'm wondering if it was caused by an update to the firmware or profiles. I'm running PrusaSlicer 2.9.5 and Firmware 6.5.3+12780.

RE: chamber vent control

I had problems getting the vent grille to open before printing and close after priniting. I deleted my user presets files and created a new one by inserting a "M870 O" line in the start G-code and a "M870 C" followed by "G1 X5 F10000" as the first lines of the end G-code. It now seems to work fine.

RE: chamber vent control

Figured it out. The printer was shaking the vent closed. Tightened the screws some.

Posted by: @james-w7txt

Has anyone noticed the auto vent control not working properly with recent firmware or slicer updates? At some point, my CoreOne started closing the vent before printing PLA. I'm wondering if it was caused by an update to the firmware or profiles. I'm running PrusaSlicer 2.9.5 and Firmware 6.5.3+12780.

 

 

 

 

RE: chamber vent control

Posted by: @james-w7txt

Figured it out. The printer was shaking the vent closed. Tightened the screws some. 

That's an interesting data point to remember. By chance are you using the Hula Feet mod?