Rostock MAX v2 Assembly Guide – 4thEd.
The filament tensioner includes two mounting screws that are “captured” inside the assembly.
Rotate the stepper motor so that the wires are facing up and then
set the filament tensioner against the face of the stepper motor and
tighten the two screws.
The next task will be to install the hobbed gear.
Before you can do that, you'll need to turn the output shaft
of the stepper motor so that the flatted portion of the shaft
is facing the opening in the side of the filament tensioner
as shown in Fig. 10.1-4.
Remove the grub screw from the hobbed gear and set it
aside.
Press your thumb against the red lever on the filament
tensioner and slide the hobbed gear on to the shaft with the
hobbed portion closest to the face of the stepper motor.
You want to align the hobbed portion of the gear
with the steel bearing on the filament tensioner as
shown in Fig. 10.1-5. The idea is to get the center line
of that little bearing lined up with the center line of the
hobbed portion of the gear. Guessing by the photo to
the right, this is not an idea that's taken hold in my head
as of yet. Please don't make the same mistake. :)
10 – Assembling and Installing the EZStruder – 90
Fig. 10.1-2: Filament tensioner.
Fig. 10.1-3: Filament tensioner installed.
Fig. 10-4: Shaft aligned.
Fig. 10-5: Hobbed gear alignment.
