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Hi everybody. Thanks for allowing me to join your group. Im from South Africa and recently bought a stratasys 768. Im having some funny patterns only on the back of my prints. Ive changed materials, posisions, temps and even layer hights but keep on getting the same results. I printed some simple blocks as an example. Any ideas?

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Try to extrude the same roll of filament for about the time of printing one layer of your model, let’s say 30 seconds. The filament should come out the extruder straight down, if it’s extruding in random directions then you need a new nozzle.

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