Restore Filament Change prior to print

[bivaterl]

Version

PrusaSlicer-2.1.0-beta3

Operating system type + version

Win10

3D printer brand / version + firmware version (if known)

Mk3 firmware 3.7

Behavior

When using layer change on first layer, it will print purge line (front left of bed) and then lift for a filament change. This ability was disabled in PrusaSlicer-2.1.0-beta3 per the changelog: "Following color change issues were fixed:
Adding color change at the last layer did not work reliably.
Adding color change before the first layer has no effect, therefore it is now disabled."

Please RE-enable this last feature. Reason is because if you were printing something ending in one color and need to do a filament change, you are able to create a pre-print filament change (current capability) rather than doing a filament change prior to the print. It allows for those of us doing many prints of the same type in serial to use the sliced files to facilitate the filament change rather than having to do it manually between prints.

Project File (.3MF) where problem occurs

Any sliced files before 2.1.0 beta 3 vs. after beta3 when the feature was disabled.

[bubnikv]

Do you use it on a MK3 with or without a MMU2 unit? You can just enter M600 at the end of your custom start G-code in your printer profile to achieve the same effect. čt 12. 9. 2019 v 0:16 odesílatel bivaterl <notifications@github.com> napsal:

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Version PrusaSlicer-2.1.0-beta3 Operating system type + version Win10 3D printer brand / version + firmware version (if known) Mk3 firmware 3.7 Behavior When using layer change on first layer, it will print purge line (front left of bed) and then lift for a filament change. This ability was disabled in PrusaSlicer-2.1.0-beta3 per the changelog: "Following color change issues were fixed: Adding color change at the last layer did not work reliably. Adding color change before the first layer has no effect, therefore it is now disabled." Please RE-enable this last feature. Reason is because if you were printing something ending in one color and need to do a filament change, you are able to create a pre-print filament change (current capability) rather than doing a filament change prior to the print. It allows for those of us doing many prints of the same type in serial to use the sliced files to facilitate the filament change rather than having to do it manually between prints. Project File (.3MF) where problem occurs Any sliced files before 2.1.0 beta 3 vs. after beta3 when the feature was disabled. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#2905?email_source=notifications&email_token=ABMPSI5SJGA2OFQJXQOZRCDQJFU2TA5CNFSM4IVZN6P2YY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4HK23DWQ>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABMPSIYWWMUR7SB6OH5S7DDQJFU2TANCNFSM4IVZN6PQ> .

[bivaterl]

Hi Vojtěch- I have a Mk3 (not Mk3S) and no MMU2. I know I can end up adding manually, but it was nice to have in the slicer settings, as I often am adding color change/filament change. I was just curious as to the conclusion that the setting "had no effect so it was disabled" was actually false - it did do something (it put a M600 prior to print), and it worked as indicated, so I wasn't sure why this was disabled. I may be in the minority and if so, I can always put an M600 in manually, as you suggested, as well as just stopping the print to insert a filament change via the mk3 console on the printer directly. It was just nice that it worked and it was inaccurate to say it didn't do anything, which was why it was disabled. It needs to work for the entire user-base, so I will accept the result, however. Just curious on another aspect that I couldn't find on the change list: is there an option for the print preview in the filament changes to be aligned with the different filament colors and types? For example, could I get the layer to display the colors I wanted rather than the defaults? (Perhaps they could be based on the color of filament selected?) The other one I wasn't sure of more from a material perspective would be if you could change filament types via filament change: IE start with PLA, but add a PETG section or go from HTPLA to PLA (as the temp settings can vary. Do you know if that is feasible? If it is, I'm happy to put in a feature request. Thanks for all you do to make Prusa Slicer awesome. :)

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--Ben Vaterlaus ben@vaterlaus.org

On Wed, Sep 11, 2019 at 10:03 PM Vojtěch Bubník ***@***.***> wrote: Do you use it on a MK3 with or without a MMU2 unit? You can just enter M600 at the end of your custom start G-code in your printer profile to achieve the same effect. čt 12. 9. 2019 v 0:16 odesílatel bivaterl ***@***.***> napsal: > Version > > PrusaSlicer-2.1.0-beta3 > Operating system type + version > > Win10 > 3D printer brand / version + firmware version (if known) > > Mk3 firmware 3.7 > Behavior > > When using layer change on first layer, it will print purge line (front > left of bed) and then lift for a filament change. This ability was disabled > in PrusaSlicer-2.1.0-beta3 per the changelog: "Following color change > issues were fixed: > Adding color change at the last layer did not work reliably. > Adding color change before the first layer has no effect, therefore it is > now disabled." > > Please RE-enable this last feature. Reason is because if you were printing > something ending in one color and need to do a filament change, you are > able to create a pre-print filament change (current capability) rather than > doing a filament change prior to the print. It allows for those of us doing > many prints of the same type in serial to use the sliced files to > facilitate the filament change rather than having to do it manually between > prints. > Project File (.3MF) where problem occurs > > Any sliced files before 2.1.0 beta 3 vs. after beta3 when the feature was > disabled. > > — > You are receiving this because you are subscribed to this thread. > Reply to this email directly, view it on GitHub > < #2905?email_source=notifications&email_token=ABMPSI5SJGA2OFQJXQOZRCDQJFU2TA5CNFSM4IVZN6P2YY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4HK23DWQ >, > or mute the thread > < https://github.com/notifications/unsubscribe-auth/ABMPSIYWWMUR7SB6OH5S7DDQJFU2TANCNFSM4IVZN6PQ > > . > — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2905?email_source=notifications&email_token=ALI4FGJWWLB7ZOTGDJSOFKTQJHEN3A5CNFSM4IVZN6P2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD6QVCOQ#issuecomment-530665786>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ALI4FGLPKW2HIJYWSF2PETTQJHEN3ANCNFSM4IVZN6PQ> .

[Jebtrix]

Just curious on another aspect that I couldn't find on the change list: is
there an option for the print preview in the filament changes to be aligned
with the different filament colors and types?

It's a current request (in various forms): #2826, #2469

[lukasmatena]

I can always put an M600 in manually, as you suggested

@bubnikv did not suggest you add it manually. He suggested you add it in your Printer Settings->Custom Start G-Code, so it is automatically added before the print starts. This way you don't have to add it yourself by the slider (which would IMHO classify as manual as well).

[rtyr]

I believe it was answered. We also had quite frequent reports of people who added color change accidentally to the first layer. Closing.