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                  1. Support
                  2. Printer features
                  3. Cancel Object (MK4/S, MK3.9/S, XL/+, CORE One+/GEN 2, MINI/+)
                   

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                  Cancel Object

                  (MK4/S, MK3.9/S, XL/+, CORE One+/GEN 2, MINI/+)

                  Relevant for

                  MK4 family
                  XL family
                  MINI family
                  MK3.9 family
                  CORE One family
                  23 comments
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                  When printing multiple objects within the same print, it is possible that one or more objects might not have an optimal finish or get loose from the plate, while at the same time, other objects in the same print are printing perfectly. 

                  The Cancel Object function makes it possible to stop printing an object directly from the printer menu, while the print is in progress. 

                  The feature is available starting from PrusaSlicer 2.7.0, combined with Firmware 5.1.0 or above for Original Prusa MK4 and Original Prusa XL and Firmware 5.1.2 or above for Original Prusa MINI/+.

                  During a running print, navigate to Tune menu -> Cancel Object and select an object that you wish to stop printing. The print will continue running, though any Gcode commands related to the canceled object will be ignored. 

                  The easiest way to stop printing an object is to use the Cancel Current function, located in the same submenu. Once the nozzle reaches the object you want to cancel, you can select this option. 

                  It is also possible to resume the printing of a canceled object through the same submenu. 

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                  Topics

                  • About your printer
                    • Printer features
                      • Steel sheet profiles
                      • Power Panic
                      • Flexible steel sheets (guidepost)
                      • Power-modes
                      • Tune Menu
                      • Sound mode (MINI/MINI+)
                      • Noisy filament sensor (MINI)
                      • Water-soluble materials (PVA/BVOH)
                      • Satin steel sheet
                      • Textured steel sheet
                      • Smooth Steel Sheet
                      • HW setup (MINI/MINI+)
                      • One-click print
                      • Experimental settings (MK4/S, MK3.9/S, MK3.5/S, XL/+, MINI/+)
                      • Special PA Nylon steel sheet
                      • Loadcell (MK4/S, MK3.9/S, XL/+)
                      • Status LED explained (MK4/S, XL/+)
                      • Nextruder filament sensor (CORE One, CORE One L, MK4/S, MK3.9/S, XL/+)
                      • Sample G-codes
                      • Buddy firmware-specific G-code commands
                      • Nextruder silicone sock (CORE One/+, CORE One L/+, XL/+, MK4/S, MK3.9/S)
                      • Model preview
                      • Cancel Object (MK4/S, MK3.9/S, XL/+, CORE One+/GEN 2, MINI/+)
                      • Tools Mapping (XL)
                      • Support settings for the XL/+
                      • Touch screen (CORE One L, CORE One, MK4/S, MK3.9/S, MK3.5/S, XL/+)
                      • NFC antenna
                      • Accelerometer (CORE One, MK4/S, MK3.9/S)
                      • Tools Mapping and Filament Mapping (XL/+, INDX, MMU3)
                      • GPIO Module
                      • Network Connection (CORE One L, CORE One, MK4S, MK3.9S)
                      • MMU3 Prusa Nozzle vs. CHT nozzle
                      • Flashing custom firmware (CORE One L, CORE One, MK4/S, MK3.9/S, MK3.5/S)
                      • PP steel sheet
                      • Safety and safety timer messages (CORE One, CORE One L, XL, MK4/S, MK3.9/S, MK3.5/S)
                      • Advanced filtration system for Prusa CORE One
                      • Offline Workflow with Prusa 3D Printers
                      • Saving Log File (CORE One, CORE One L, XL, MK4/S, MK3.9/S, MK3.5/S, MINI)
                    • Printer description
                    • General Information

                  16 comments

                  Log in  to post a comment
                  SkippyMcSlappyPants
                  •
                  I am having the same issue as Brian. I have a bed of ~120 parts printing. 2 failed. I have no idea what two those are numbered in the slicer, so I have to either sit there for 20 minutes until the printer starts printing them, or just let it run and hope for the best.

                  Would it be possible to change the menu from:
                  Cancel current
                  *Filename* (Instance 1 [Printing])
                  *Filename* (Instance 2 [Printing])
                  . . .

                  To something like:
                  Cancel current
                  Select instance

                  When you pick "Select Instance" the screen goes to the overview of the build plate, with all of the objects orange, like when you first select the file to be printed. Then, as you turn the selector wheel, the instances turn green one at a time as you scroll through them, and when you highlight the instance you want to cancel and press the selector wheel, that instance is canceled, and you are returned to the previous menu, where you can either return to select another instance to cancel, or return to the main display screen.
                  Reply
                  Brian Espinosa
                  •
                  Like others have posted here, this functionality does not work for large sheets of parts. For instance I have a sheet of 165 parts currently printing and I could not cancel a few that failed. I get messages from Connect saying the message was sent to cancel but the printer continues to try to print them. I also tried the “cancel current part” when on the specific failed parts and it also does not work. I’m now stuck babysitting the rest of this print for 3 hours or risk losing the whole sheet.

                  Big problem that needs to get addressed ASAP for those of us running production.
                  Reply
                  mike12489
                  •
                  Bummer hearing some of the other reports below saying that this didn't work for them, but I was very glad just now to see this work on an overnight print on my CORE One, fw 6.3.4. Three moderately sized items on the plate, one failed. Canceling that one worked flawlessly for me and saved lots of time and filament.

                  I do wish this were available through the app, including an assistive visual of the object to be cancelled.
                  Reply
                  Howler117
                  •
                  Yea this didn't work at all for me. Cancel current on the printer itself did nothing and sending the command to cancel a specific instance in prusa connect also just didn't work. Would be great to see this working so I don't have to cancel a whole print just because a couple instances messed up
                  Reply
                  Ganj
                  •
                  Very limited feature, functionality wise. On printer it only shows up to 16 objects to cancel, these are also not numbered.
                  Option "cancel current object" doesn't work either on objcets outside of the first 16.
                  Prusa Connect implementation is better but even though objects are numbered and ui allows you to send cancel command to printer. After "command send successfully", object is still not cancelled.
                  Very dissapointing.
                  Reply