SeeMeCNC Rostock MAX v2 Assembly Manual page 44

First up, you'll need to put together the six belt support bearings by sandwiching each 608ZZ
bearing between a pair of the black idler bearing spacers.
Fig. 4-22: Idler bearing parts.
Set those aside and grab a stepper motor and a stepper motor support plate. Align the stepper
motor as shown in Fig. 4-24 and install it using four of the M3 10mm screws. Apply a little bit of
thread locker to each one before installing.
Fig. 4-24: Correct mounting plate
alignment.
Now you need to install a #4, 3/8" sheet
metal screw where indicated in Fig. 4-26.
This screw is used as a stop in order to
set the correct T-Slot tower depth.
Assemble TWO stepper motor support
plates like you have here. The third is mirrored
and will not install properly any other way.
Rostock MAX v2 Assembly Guide
Fig. 4-26: T-Slot stop screw.
Fig. 4-23: Assembled idler bearing.
Fig. 4-25: Stepper motor screws installed.
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