stick on your transmitter.
Connect the receiver leads from the servo
2
to channel 3 on the receiver. This will
allow you to control the lifting arm using
the throttle channel on your transmitter.
Connect the receiver lead from the 9V
regulator
4
to channel 4 on the receiver.
This allows the regulator to power the
servo so it can use its full capacity.
3. BUILD THE WHEELS
3a. Glue hubs into the wheels
Add a dab of hot glue onto the larger half
of a 3D-printed wheel hub and insert it into
the center of a foam wheel (Figure
B
).
Flip the wheel over, add a dab of hot glue
onto the smaller half of the hub (Figure
C
)
and insert it into the center of the larger half.
Press the pieces together to make sure the
hubs properly bond to the foam wheel.
3b. Glue Lite Hubs into the hubs
Add a bit of hot glue to the nylon body of
a Lite Hub then insert it into the center of
the printed hub in the wheel (Figure
D
).
Repeat Step 3 for the second wheel.
TIP: If there is difficulty inserting the Lite
Hub, I recommend cleaning up the hub opening
with a small drill bit or hobby knife.
4. MOUNT THE DRIVE MOTORS
Add a dab of glue to the bottom of each
motor mount in the chassis (Figure
E
).
Now you’ll heat the rear section of the chassis
to insert the Silver Spark gearmotor. Turn on
the heat gun and let it come up to temperature.
Focus it on one motor well at a time: Once the
plastic becomes soft, insert the drive motor
into the slot. Ensure the gearbox is thoroughly
mounted and sitting in the hot glue. Then
bend the plastic in slightly so it helps support
the motor. Remove the heat gun and let the
plastic cool so it hardens in place (Figure
F
).
Repeat this process for the second
gearmotor (Figure
G
).
B
C
D
E
F
G
47
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