Anyone Who got a solution how to fix This,

3D Printing
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1

Anyone Who got a solution how to fix This, my printer is a Wanhao Duplicator I4 With a fan blowing vold air at the print. Heatplate: 0 Exstruder: 190

67c0ecc8d889af0f0b0f2ee2636ae7ce.jpeg
67c0ecc8d889af0f0b0f2ee2636ae7ce.jpeg2592×1936 1.15 MB

c84fd4eee2a5a52bb06bfcffc6bd47cc.jpeg
c84fd4eee2a5a52bb06bfcffc6bd47cc.jpeg1072×1440 121 KB

2

looks like over extrusion fix the steps of extruder motor.