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Steverc1572

Cura 4.0 beta not purging 1st color

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I have noticed that on a 2 color file that the 1st color swap that it does not go to the prime tower and purge the 1st color. It works fantastic on the 2nd swap and on. I have to add a brim large enough to purge all the old color out or it will contaminate the other color on the 1st swap. Has anyone else noticed this problem? This may be specific to a 2 in and one out nozzle. This is on a Creality CR-X.

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Well, we've had no such reports for any of the dual Ultimaker printers, so I'm guessing it's a profile/configuration issue. Since we don't actually maintain the profiles of third party printers (we only check if they don't break anything in Cura, not if they actually produce decent prints), there is not much I can help you with. 

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On 1/21/2019 at 2:32 PM, nallath said:

Well, we've had no such reports for any of the dual Ultimaker printers, so I'm guessing it's a profile/configuration issue. Since we don't actually maintain the profiles of third party printers (we only check if they don't break anything in Cura, not if they actually produce decent prints), there is not much I can help you with. 

The only problem with that is I installed the exact same profile/configuration in 3.4.1 and it works perfectly. Not sure what has changed and I understand that you concentrate mainly on Ultimaker printers but something has.

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On 1/21/2019 at 3:32 PM, nallath said:

Well, we've had no such reports for any of the dual Ultimaker printers, so I'm guessing it's a profile/configuration issue.

 

Well, the UM doesn't need to purge the head on color swap, so it is a different problem set. If I read it correctly, he is using a dual-in head with a single nozzle. That would mean it would require more then the math to change, but have different g-code then would be generated with a full dual head machine like the UM

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