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How to pause at z height to change filament?


Cobalt1
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Posted (edited) · How to pause at z height to change filament?

I'm about to buy an UM2+ or UM3 and wanted to know if some form of "pause at z height" (or z layer) is possible with the Cura software? If not, can I export gcode from the software, modify it to include a code to pause (M 25, M 226 or M 600), and then print that modified gcode?

Edited by Guest
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    Posted · How to pause at z height to change filament?

    The bleeding edge cura 2.X - as of november 2016 I don't think it does support this. But I still use Cura 15.04.6 which supports this with a plugin. Older cura can be found here:

    https://ultimaker.com/en/products/cura-software/list

    You want the pause-at-z plugin. UM2 series printers all support pause from gcode but I'm not certain about UM3. I have a UM3 but I haven't tried to see if a gcode will pause the UM3. I'm sure UM3 will support it at some point.

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    Posted · How to pause at z height to change filament?

    There is a "Pause at Height" plugin in Cura 2.3.x

    Extensions / Post Processing / Modify G-Code / Add a script / Pause at height

    Does that not work on UMx printers?

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    Posted (edited) · How to pause at z height to change filament?

    I haven't used it in years.  It works on UMO and probably on UM2.  Sounds like it works on the UM3 also according to farmerritchie below.

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    Posted · How to pause at z height to change filament?

    This M25 command worked in Gcode on my Ultimaker3.

    (I have no idea why Cura2.3.1 generated it - I commented it out.)

    ;TYPE:CUSTOM

    ; -- Pause at height (5.00 mm) --

    M25 ; Pauses the print and waits for the user to resume it

    ;LAYER:48

    G0 X118.5 Y26.724 Z5.07

    ;TweakAtZ V5.1: executed at 5.07 mm

    M117 Printing... tw@ 5.1

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    Posted · How to pause at z height to change filament?

    (I have no idea why Cura2.3.1 generated it - I commented it out.)

    It turns out the I must have been exploring Cura and ran the (preinstalled?) plugin TweakAtZ 5.1 without knowing what I was doing and left it on. I later sliced a bunch of models and found that it does add GCode to stop at a specified height that works with my Ultimaker 3. It also has an option to stop at a specified layer, but I have not tested that. I suspect that that "Pause at Height" mentioned by DaiHai8 works as well.

     

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    Posted · How to pause at z height to change filament?

    I have a Ultimaker 2+ with Tinker firmware and Cura 2.5. "Pause at Z" works once but the second time it does not stop. Is there a minimum space between the "Pause at Z" usages. or have they still not fixed the software so you can use "Pause at Z" twice in the same model? I also noticed there are two other kinds of Pause at Z one for BQ printers and one for Repetier should I be using these?

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