XYZprinting Crazy3DPrint CZ-300 DIY 3D Printer - Manual (Page 12)

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1) Use a cutting tool to remove the cable tie and place all the cable with the extruder module on a table.
Please hold the end of cable near the control box to prevent unintentional pulling of the device causing
any electrical damage while placing and arranging the cable.
The 3D printer parts can be referred to the names in the table of CZ-300 APPEARANCE .
2) Move the extruder module holder to the middle of the roller shaft; following directly mount the extruder module on the
holder.
3) Mount the driving belt to the pulley locating on the upper frame; following place the holder and lock up with a screw
M4x10 and the inside nut to secure the extruder motor cable.