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Lower part shrinking

Posted: Mon Jul 17, 2017 12:17 pm
by sheng
Hi, I am printing Polymaker PC-MAX under the recommended nozzle temperature of 255oC and HBP of 80oC. I noticed there is some shrinkage at the lower part. I am printing with raft. The shrinkage is very prominent when I am printing a 1mm thick part.
Anyone know how to solve this problem?