SeeMeCNC Rostock MAX v2 Assembly Manual page 139

Now you need to install the filament guide block on to the stepper motor.
The filament guide block is installed on to the
stepper motor using the two metric screws included in the
hardware pack. Using the photo below as a guide, insert
the shorter screw in the hole to the right and the longer
screw in the hole to the left.
Fig. 10-8: Mounting screw locations.
Set the filament guide block on to the stepper motor and tighten the attachment screws.
Fig. 10-9: Assembled EZStruder.
Rostock MAX v2 Assembly Guide
Fig. 10-7: Filament guide block orientation.
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