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SQuicke

UM3 printing single colour print with core 2

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I've recently replaced my BB core with a second AA core so I could do a dual colour print. It worked great. Now however I want to print a single colour print but from the second core (right hand side nossel) At first the UM3 was purging the left hand nossel in the front right corner then switches to the second core and purges the second core then after playing with a few settings it purged the right nossel, printed the first layer, purged the left nossel, then swapped back to the right nossel to carry on printing. FYI the left nossel doesn't actually print anything in the whole print.

When I print single colour on the left nossel it doesn't even heat up the right hand nossel. Is there a reason for this?

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Hi @SQuicke,

Thank you for your post and welcome to the forums!

You should be perfectly fine printing just a single color print with the Ultimaker 3.

In Cura you can define what part of the model you print with what print core.

Does it only purge / prime or does it print the skirt / brim with your first print core too?

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Hi @SQuicke,

Thank you for your post and welcome to the forums!

You should be perfectly fine printing just a single color print with the Ultimaker 3.

In Cura you can define what part of the model you print with what print core.

Does it only purge / prime or does it print the skirt / brim with your first print core too?

 

Hi Sander.  The UM3 only prints with core 2 but seems to heat and purge core 1 before it starts with core 2.  When printing with core 1 only it doesn't seem to heat core 2 at all.

The only reason I want to do this as I have 2 colours, one in each core.  It saves me swapping filament if I want to print a certain single colour print.

I may be missing something here but it definitely isn't printing anything with core 1 after the initial purge.

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