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Posted · 2 color printing

Hi all


I have an ultimaker2 with two Olsen Blocks, using Cura 4.2.x.


My problem is that if I print a model with one colour it works fine.

However when I create a two colour model with inlaid numbers only the first 2 layers print correctly and  then it seems to loose extrusion. But when I abort and try another single colour with the same nozzle it prints fine. Slowing down the entire process and raising nozzle temperature doesn't fix the problem.


Any suggestions on how to fix the issue welcome.




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    Posted · 2 color printing



    Thanks for the reply.

    Yes nozzle 1 holds it's temperature throgh out a print of a one colour model. It also holds the temperature during a two colour print. The issue is it only prints the first one or two layers on the first nozzle then stops extuding. I use PLA normally about 205 degrees but increasing this to 225 makes no differnce, yet If i print a single colour model immediatally after the failure of the two colour model there is no issue. Even a change of colour of PLA makes no difference.



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