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It won't stop extruding UM2E+

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Oh wait I figured it out.


Okay well the filament isn't sticking to the glass.  Is the glass bed warm?  check that with your finger.  Also put a little glue stick on the glass and spread that with a wet tissue and wait for it to dry.


But most important the nozzle is probably too far from the glass.  Try pushing up on the bed while it's doing that and the filament should start sticking to the glass.  If that works then turn the 3 leveling screws counter clockwise (to move the bed up) an equal amount.  Maybe a half turn.

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The UM2+ does the purge as part of the UM2+ firmware. You could override it with a different slicer, but if you're slicing in Cura, the firmware is going to proceed as normal with this purge.

The UM3 does a priming blob at bed level (it should stick) as part of the gcode and settings in Cura. You can also turn it off in Cura. (Check boxes for Enable Prime Blob.)

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For your Ultimaker 2+...it's built into the firmware. Unless you use a different header/manually write gcode that overrides the firmware, it's always going to purge like that.

On the UM3, it purges, but differently, and the purge is controlled by Cura, so you have the option to turn it on or off for each print when you slice the file.

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