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Unable to use full print bed size with single extruder


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Posted · Unable to use full print bed size with single extruder

Hey there,

 

so basically I'm trying to print a round object with a diameter of 210mm on my Ultimaker 3 Extended. The Problem now is that Cura is unable to slice my object because "It doesn't fit the build volume".

According to the spec. sheet of the Ultimaker 3 Extended, the build volume for single extrusion should be 215x215x300 so I should be able to slice and print this without any problem, since I'm not even close to some safety margin.

I have already disabled my skirt/build adhesion and checked the machine settings for the correct plate dimensions.

I have also tried disabling the second Extruder without any noticeable effect.

 

Only thing I haven't tried is modifying the build volume to a bigger value because IMO that could damage/harm the printer in the worst case.

 

I'm really stuck here and don't really know what to do except asking you guys for some advise. Anybody had the same issue?

Thanks in advance.

Build_Volume_1.png

Machine Settings.png

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    Posted · Unable to use full print bed size with single extruder
    32 minutes ago, scurrscurr said:

    I have already disabled my skirt/build adhesion and checked the machine settings for the correct plate dimensions.

    I have also tried disabling the second Extruder without any noticeable effect.

     

    Looking at the grey areas on your screenshot - it seems that both extruders are still enabled.

    Here is a thread about how to disable the second extruder:

     

     

    Good luck!

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    Posted · Unable to use full print bed size with single extruder

    Hi @scurrscurr,

     

    You cannot print this object at this size with a single nozzle, the with of the bed is approx 255 mm.

    If you use both nozzle (AA type), you "might" be able, but it looks to be to big..

     

    Thanks

    Torgeir

     

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    Posted (edited) · Unable to use full print bed size with single extruder

    Hi @scurrscurr,

     

    Sorry, but I misunderstood the issue here..

     

    I've made a 215 mm and 20 mm high "cylinder" in Fusion 360 and got it into Cura 4.8.0 with an UM3E setup.

    I can see that you're very close to be able to slice. 

    When I'd scaled down to 99.3 % (0.7% down), I could slice the model.

     

    This is very little, so in "theory" it should be possible..

     

    First thing to do;

    1)  Select Brim/Skirt to "none"

    2)  Deselect print core 2

    You will now see the "max print area" using core no1.

     

    If you go to "setting printers" then to "manage printer", you'll now see "Ultimaker 3 Extended" and under here press "Machine settings". 

     

    Here you will see:  X (width) = 233 mm and Y(dept) = 215 mm.

    If you increase those two values by 3 mm each, Cura will slice your object.

     

    HOWEVER, I do not know if there is enough safe overrun to do this, so this has to be answered by someone in Ultimaker..

     

    Edit: Both end/stop switches may be a little adjusted in order to add slightly more space..

             However, this require new calibration of "core switch" setting and bed clearance..

     

     

    Please do not try to print like this before all this is checked.

     

    Here is a picture of the simple model I've made for checking this.

     

    Max_Bed_Size.thumb.jpg.843a2c903228e7cd5eeecf8d862a8ef0.jpg

     

    Good Luck

    Thanks

    Torgeir

     

     

     

    Edited by Torgeir
    Added info.
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    Posted · Unable to use full print bed size with single extruder
    13 hours ago, Torgeir said:

    HOWEVER, I do not know if there is enough safe overrun to do this, so this has to be answered by someone in Ultimaker..

    This could work, but there will be a change that the print will shift because the end stop is reached. 

     

    But the best work around is to disable the extruder you are not using like above is mentioned. Please let me know if this is an solution for you @scurrscurr

    If not a project file would be helpful and I can take a look at it.

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    Posted · Unable to use full print bed size with single extruder

    Hi @scurrscurr,

     

    PS.

    Just a note, I saw that both "X and Y setting" for your printer actually was set to 215 mm.

    Default for the UM3 is; X=223 mm and Y=215 mm. We would normally never adjust this settings.

     

    So after printing this "special" object, -it would be wise to adjust those setting to default again.

     

    Thanks

    Torgeir

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