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Technical data sheet Ultimaker 2

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Last year I decided to convert my ultimaker 2 into version 2+.

Before the conversion I saw that 3D Solex offered the possibility of converting it also for 1.75mm filaments and then I decided to buy the Olsson extrusion kit for 1.75mm filaments then I also bought from Bondtech the filament feeder for 1 , 75mm and since I converted the machine I have overextruder problems, I had to reduce the flow from 100% to 65% with 0.6mm and 70% nozzle with 0.4mm nozzle but despite all I can not make perfect prints like It was first with filaments of 2.85mm.

What can depend on this problem of having too much material flow?

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