Building the Mongoose Mechatronics Robot: Part 1 Chassis & Gearbox

Step 5 Building and lubricating the right side gearbox

This step is illustrates building the geartrain. Starting with the right side gearbox half (the brass bushings should be installed as shown in the previous step)

Lightly lubricate as you're assembling the gears

• Lubricate and insert both the long and short axles as shown below into the brass bushings
• add the yellow main drive gear note the notch for the set screw
• next a blue gear
• then a modified blue gear (from step #2)
• a yellow crown gear goes on next
• a silver spacer
• add another set brass bushings

Finally you can attach the central gearbox frame with three silver 20mm Phillips screws

The left side of the gearbox is a mirror image of the right, simply repeat this step and you'll have two halves that bolt together into one finished gearbox.