Hope someone can help with this.....
When I turn on cooling in Cura, my print stops after approximately 1 minute. For example I have a print roughly 15cm by 6cm in ABS with a 15mm brim and it only does around 3 laps of the brim and the printer stops. The printer just hangs and I cannot stop or pause the print. The only way to get control is to turn the printer off and on again! When I turn cooling off the print runs fine.
I also have a minimum layer time but that just gets ignored too.
My printer is an Anycubic i3 Mega, and I'm using the latest Cura version.
Cura print and printer profiles attached
Start G-code
G21 ;metric values
G90 ;absolute positioning
M82 ;set extruder to absolute mode
M107 ;start with the fan off
G28 X0 Y0 ;move X/Y to min endstops
G28 Z0 ;move Z to min endstops
;G29
G1 Z15.0 F600 ;move the platform down 15mm
G92 E0 ;zero the extruded length
G1 F200 E5 ;extrude 3mm of feed stock
G92 E0 ;zero the extruded length again
G1 F{speed_travel}
M117 Printing...
G5
End G-code
M104 S0 ; turn off extruder
M140 S0 ; turn off bed
M84 ; disable motors
M107
G91 ;relative positioning
G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure
G1 Z+0.5 E-5 ;X-20 Y-20 F{speed_travel} ;move Z up a bit and retract filament even more
G28 X0 ;Y0 ;move X/Y to min endstops, so the head is out of the way
G1 Y180 F2000
M84 ;steppers off
G90
M300 P300 S4000