Page MenuHomeAleph Objects Inc

Print never ends
Open, Needs TriagePublic


After a print is complete, and the bed cools down, the LCD says that TAZ 7 is ready. However:

-the bed is never moved forward for print removal
-hitting menu on the LCD screen brings up the regular menu screen (not the mid-print menu.) There's no indication that the printer is "busy"
-in Cura, attempting to start another print gives an error message saying the printer is still in use
-in the LCD screen under printer statistics, it still says it has done 0 complete prints, despite completing a few at this point

Related Objects

Event Timeline

matth created this task.Wed, Dec 19, 11:01 AM
adam added a subscriber: adam.Thu, Dec 20, 3:37 PM

I'm confirming this behavior on quiver 16 as well

@west @tutley @kent @Steven -bringing you all on to the ticket so you are aware of what's going on.

matth updated the task description. (Show Details)Thu, Dec 20, 3:45 PM
west added a comment.Thu, Dec 20, 3:51 PM

@adam can you post your end gcode?

It would also be good to see a generated gcode that has been run that shows this issue.

matth added a comment.Thu, Dec 20, 4:32 PM

Here's the last few lines of it:

G0 F10500 X140.001 Y146.365
G1 F600 X139.922 Y146.286 E19.54696
G1 F600 E17.79696
M104 S0 T0 ; T0 hotend off
M104 S0 T1 ; T1 hotend off
M107 ; fans off
G91 ; relative positioning
G1 E-1 F300 ; retract the filament a bit before lifting the nozzle, to release some of the pressure
G1 Z20 E-5 X-20 Y-20 F2000 ; move Z up a bit and retract filament even more
G1 E6 ; re-prime extruder 1
G1 E-5 F300 ; retract the filament a bit before lifting the nozzle, to release some of the pressure
G1 E5 ; re-prime extruder 2
M117 Cooling please wait ; progress indicator message
G90 ; absolute positioning
G1 Y0 F3000 ; move to cooling position
M190 R45.0 ; set bed to cool off
G1 Y280 F3000 ; present finished print
M140 S45.0; keep temperature or cool downs
M77 ; stop GLCD timer
M84 ; steppers off
G90 ; absolute positioning
M117 Print complete ; progress indicator message

M82 ;absolute extrusion mode
M104 T0 S0
M104 S0
;End of Gcode

It never seems to run the "G1 Y280 F3000 ; present finished print" line

west added a comment.Thu, Dec 20, 4:48 PM

@matth try adding a "M400 ; clear buffer" before "G1 Y280 F3000 present finished print"

matth added a comment.Fri, Dec 21, 9:43 AM
This comment was removed by matth.
logan added a subscriber: logan.Fri, Dec 21, 10:35 AM

Why is there decimal points in your temperatures?

M140 S45.0

idk if i've just not noticed them there before but it seems weird

@west Adding that line made no difference, unfortunately. After it cools the bed to 45C, all the temps are set to 0 and the LCD says it's ready.

matth added a comment.Fri, Jan 4, 3:15 PM

This seems to be fixed in the current builds.

karrad added a subscriber: karrad.Fri, Jan 4, 3:16 PM

@matth What firmware version are you running?

matth added a comment.Fri, Jan 4, 3:51 PM

Firmware version Marlin Using Cura version 3.6.2 and 3.6.1.

kent closed this task as Resolved.Mon, Jan 7, 7:19 AM
kent claimed this task.
matth reopened this task as Open.Mon, Jan 14, 12:11 PM

Reopening because issue is still present when printing via usb cable with Cura.

Issue is not present when printing via usb flash drive.

How to reproduce:
-connect with usb cable, start print
-when finished, printer won't bring bed forward

-insert usb stick with same gcode, start print
-when finished, printer will bring bed forward

matth added a comment.Mon, Jan 14, 1:08 PM

This occurs when plugged in via usb cable:

-print is done, bed is cooling down 60 -> 45
-as soon as it hits 50C, the LCD goes blank for a second, then returns as its normal, idle menu screen
-in the cura console, it displays this error message:

< [13:03:37] Remaining mm: 12.72, 14.00
< [13:03:37] T:110.28 /0.00 B:50.44 /45.00 T0:110.28 /0.00 T1:93.83 /0.00 @:0 B@:0 @0:0 @1:0 W:?
< [13:03:38] Unexpected error while accessing serial port. read failed: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
< [13:03:38] Closing the USB printer connection.
< [13:03:38] Printer connection listen thread stopped for None

I've reproduced this twice, not sure why it's exactly when the bed cools to exactly 50C.

Note, matth's prints from today are with Cura 3.6.2 and Marlin, afaik.

@matth , This sounds like a Marlin reset. If it's happening only for this particular printer it might be an electrical problem too. @marcio , are you able to reproduce it for other TAZ 7?

alexei changed the edit policy from "All Users" to "Marlin (Project)".Mon, Jan 14, 1:41 PM