SeeMeCNC Rostock MAX v2 Assembly Manual page 139

The parts kit will also include a push-to-fit connector and that looks like the example in Fig. 12-
3 below.
In order to correctly align the hobbed gear on the output shaft of the
stepper motor, we need to install the Filament Tensioner first. The
tensioner has two screws that are "captured" and will be used to install it on
to the stepper motor face as below. Make sure you keep the wires exiting
the motor facing up as shown.
Fig. 12-4:Filament Tensioner installed.
The two black arrows in the figure above point to the two screw holes that have capture screws
in them.
Fig. 12-5:Installing the hobbed gear.
down the grub screw, making sure that it's coming into contact with the flat face of the stepper shaft.
Rostock MAX v2 Assembly Guide
along the shaft faces the small notch indicated by
the arrow. Remove the grub screw from the
hobbed bolt (if necessary) and put a dab of thread
locker on it before putting it back into the hobbed
gear. Slide the hobbed gear on to the stepper shaft,
oriented as you see to the left. Make sure that you
turn the gear so you can reach the grub screw
through the channel pointed to by the arrow. Align
the edges of the gear so they match the alignment
marks (cyan lines) in the photo above. Tighten
Fig. 12-3: PTF Conn.
Rotate the stepper shaft until the flat face
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