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General information collated into the most often asked questions and answers.
NOT an official Anycubic-operated forum; just customers discussing their machines.

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printing problem

by Berbilio

Hi, i was wondering if anyone knows what the problem is with my printer. First the printer was printing verry good parts, then one day it started printing realy weard. Ive leveld the bad about 3 times again but that dit not work. someone an idea?

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Painters tape on Bed Mega i3

by ivan28524838

Hello Community!!!
The printer is not working for more than 3-10 seconds. But when I change the setting to "heated bed" OFF, the g-code works perfectly.
I am using PLA material. I was wondering if I can use painters tape and not need to heat up the bed?

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Retraction noise

by Kurochi

Hello, I'm getting this noise on retractions: https://www.youtube.com/watch?v=rmdWcJdKziI

I don't know if it's the extruder gears or the motor doing that, and it's bugging me. Lowering retraction speed to 36mm/s and below fixes it, but I would like to know what's going on anyway. I upgraded my drivers to TMC2208s and all other axes are fine. Vref I believe is 1.31V on the extruder driver, 0.8 all the others.

Also, that's a genuine titan extruder.

Should mention I'm not a stepper driver or motor expert, at all.

EDIT: The extruder had never been installed correctly since it was clicking due to barely noticeable backlash, this is NOT a noise I'm only noticing after replacing the drivers. Retracting 5mm/s slower makes it pretty much dead silent, but otherwise this noise also makes the whole printer vibrate. This doesn't feel or seem right. I have already lowered vref to 0.9V

EDIT 2: This happens without any filament as well.

EDIT 3: Running the motor without extruder attached does not make any noise, therefore the problem is definitely in the extruder. Don't know if it's a limitation of geared extruders or the titan extruder in general, or if I just assembled something wrong, or even worse if some bearings are damaged.

e3d-titan extruder help motor noise retraction
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print only lasts 1-3 seconds

by volpej

Hello I have an ANYCUBIC I3 Mega, When I start a print the bed and nozzle heat up fine. The print starts last 1 to 3 seconds and stops. i have tried 5 prints, 3 which have printed before and 2 SD cards. Can you please assist in the trouble shooting?
Thank you

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Great start g code and end g code for anycubic i3 mega

by brunoosti

I'de like to share this. I've tuned it to purge the nozzle in a way it starts printing the actual print as soon as the nozzle touches the bed, with no ooze or derby on the tip. Experiment yourselves to see if it fits your needs:


G21 ; metric values
G90 ; absolute positioning
M82 ; set extruder to absolute mode
M107 ; start with the fans off
G28 X0 Y0 ; move X/Y to min endstops
G28 Z0 ; move Z to min endstops
M501 ; restore epron settings
M420 S1 ; apply bed leve mesh (if you updated the firmware)
M106 S255 ; fan on
G0 Z0.2 F1800 ; move nozzle to print position
G92 E0 ; specify current extruder position as zero
G1 X190 E50 F1200 ; extrude a line in front of the printer
G92 E0 ; specify current extruder position as zero
G0 Z20 F6000 ; move head up
G1 E-6 F2400 ; retract
G04 S2 ; wait 2s
G0 X0 F6000 ; wipe from oozed filament
G1 E-1 F2400 ; undo some of the retraction to avoid oozing
G1 F6000 ; set travel speed to move to start printing point
M117 Printing...


M104 S0 ; turn off extruder
M140 S0 ; turn off bed
M84 ; disable motors
M107 ; fans off
G91 ; relative positioning
G1 E-6 F2400 ; retract the filament
G1 Z+0.5 ;X-20 Y-20 F7200 ; wipe from model
G28 X0 ;Y0 ; move X/Y to min endstops
G1 Y180 F2000 ;
M84 ; steppers off
M300 P300 S4000

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Layer fan always on

by Fredis

Hello guys :D
I've got a problem with one of my fans. The layer one is always on, as soon as i turn the printer on the fan starts to spin at maximum speed and there's no way to stop it, nor via LCD nor via USB. I think that some electrical part just died somewhere. Do you have any idea on what could cause that? I thought that maybe i can work on the main board, switch the "port" of the layer fan with, i dunno, the PSU fan? In that case the PSU fan will be always on, but i don't know if this could cause any problem. Also, by doing that, i have to change something in the firmware but i really don't know how to do that. I tried googling it and I didn't find anything really useful. Any idea on how to fix this? Maybe buying a new trigorilla?
Oh, and i also wrote an e-mail to anycubic, but they didn't give me an answer.

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Part Cooling Fan Ignoring Cura

by FreeFaceShields

I have an i3 Mega S, and recently I noticed that the prints were looking poor in comparison to my other printers. I finally figured out that the part cooling fan wasn't running. In Cura, I have it set to 100% starting at layer 3. I can adjust the fan manually from the touchscreen and it will remain at that setting. If I go straight to another print, it will stay at that setting from layer 1, but if the machine is switched off it will default back to 0%. I've had the machine since April, and it was only turning out ppe headbands, so I don't know if it was doing it from the start as they''re pretty basic prints. I have 3 other machines and have been doing this for about 3 years, so I'm pretty sure it's not my Cura settings (famous last words...). Any ideas?

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heat block heater stops working during print?

by wakeup44

I am working with i3 Mega printer.
After more than a year printer sopped working as intended.
During the print filament stops flowing.
I did replace extruder and bowden from the spare set.
Stepper motor that feeds the filament starts to skip at some point.
Filament is perforated by the gear to the point when it breaks.
At the same time printer is reporting correct head temperature.
Printer finishes print successfully, at least it thinks so.
Print is half done and I can see that the filament was flowing slower and slower to the point when it stopped.

How to trouble shoot my problem, what can be the reason for it?

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power source

by Abzentminded

I am new to 3d printing and bought a used mega s. The psu went out and bought one from amazon but sent a much different looking then the picture and this one is 24v. Will it work or do i need to return? Thanks

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