Mounting plate
There are two types of mounting holes sized for #2-56 screws in the rear portion of the chassis:
• The middle four rows of holes have a recess for a nut on the
interior
of the chassis. These
holes can be used to secure the mounting plate or other components directly to the chassis,
as demonstrated by the screw on the left side of the picture below.
• The four holes along the front edge of the chassis and the two holes along the rear edge
have a recess for a nut on the
exterior
of the chassis. These holes can be used to secure a
component to the mounting plate alone, as demonstrated by the standoff on the right side of
the picture below, allowing the mounting plate to be removed from the chassis without having
to first detach the component.
The mounting plate is secured to the chassis with screws through the two rounded tabs that protrude
from the front edge, along with any number of the interior-nut mounting holes in the rear.
7. Decide which mounting holes on the chassis and mounting plate you will use. If you want to
use any exterior-nut holes, place nuts in the corresponding recesses on top of the chassis.
8. Peel the protective masking off the plate and place it on top of the chassis such that the cut-
outs for the battery terminals match those on the chassis below. To get the front of the plate
under the drive sprockets, you will need to angle it and slide one side in first.
9. In each of the two front tabs and your choice of the interior-nut holes along the rear, insert
a #2-56 machine screw through the mounting plate and chassis and tighten it against a nut
inside the chassis. You can line up the nut by feel, or you could try temporarily taping the
Pololu Zumo Chassis User’s Guide
© 2001–2019 Pololu Corporation
3. Assembling the Zumo
Page 9 of 12
