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Geeetech Acrylique Reprap Prusa I3 Pro B filament retraction

Posted: Sun Feb 19, 2017 7:32 am
by stavros_gr
hi
i have a Geeetech Acrylique Reprap Prusa I3 Pro B 3D imprimante 3D Printer MK8
i have an issue .... when i start print something... and the printer begins after 3 or 4 minutes of print (everything works ok) but then the motor of the extruder retract the filament and push it pass the gear and then cannot make back in ....... i have no idea why it does that...

thank you in advance and im looking forward for your respond