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Dual Extruders UM3

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Hello all,

 

I have been going through this site and I came across a picture of a silver frog with a green scale back. I then noticed what look like a tall purge block on the back of the build plate.

 

Does doing dual colors or 1 color with support on the UM3 require a purge block to be built along side with the model?

 

Thanks

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It seems the purge block is dependent on the combination of materials you are using.

 

When I do a dual print with two PLAs or PLA plus PVA, Cura does not generate a purge block, but when I try printing ASA with Breakaway suddenly the purge block appears.

 

You can always turn off the purge block from Cura.  I've done it a couple of times without any noticeable issues on the print.  I'm guessing their might be some circumstances that not having the purge block might lead to a minor error in your print.

 

 

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