bad print
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- Printmaster!
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Re: bad print
Off hand it looks like you are out of calibration. Have you gone through the calibration steps again since this happened to make sure one of your towers is not out of wack? When you print does it always get out fo round in the same place? (If you rotate the model and print it does it still go out of round pointing at the same spot on the printer?)
http://713maker.com/ Custom aluminum and carbon fiber hot end mounts for the Rostock Max and Orion.
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- Printmaster!
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Re: bad print
Agreed, looks like possibly an incomplete calibration or perhaps a sticky u-joint. Pull all the arms off and check none of the joints are stiffer than any others.
I loved my Rostock so much I now sell them in Oz 

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- Printmaster!
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Re: bad print
Check your pulleys on the steppers