Assembly Instructions for Pi2Go Mk2
Click any image to enlarge
Step 1 – Check the Contents
Check you have:
- Main Board
- Battery Board
- Caster Board
- 2 Wheels
- 2 Motors
- 2 Motor Fixings Bags
- Bag with mechanical parts (caster, encoder disks, headers)
- Fixings Bag with screws and spacers
Fixings bag contains:
- 4 x 5mm, M3, Male-Female pillars
- 4 x 11mm, M2.5 Male-Female pillars
- 4 x 19mm, M2.5 Female-Female pillars
- 2 x 24mm, M3, Female-Female pillars
- 4 x 4mm, M3 screws
- 4 x 8mm, M3 screws
- 8 x 6mm, M2.5 screws
Step 2 – Fit the Raspberry Pi Mountings
You will need 4 x 19mm, M2.5 pillars and 4 x 6mm, M2.5 screws.
Fit the 4 pillars to the main board as shown below
Step 3 – Prepare the Motor Mounts
Screw 2 of the 5mm, M3 pillars into the top of each motor mount. Ensure they are fitted tightly
Step 4 – Fit the Motor Mounts to the Motors
Pass one of the long screws from the outside of the motor (the side without the wires), through the motor and through the motor mount. Then loosely fit one of the nuts. It will sit at a strange angle as shown below
Then pivot the mount on the long nut, so that it pushes the wires out of the way and allows you to put the second long screw in. Then tighten up both nuts.
Repeat for the second motor, but fit the mount the other way up.
You should now have a left-hand and a right-hand motor assembly as shown above
Step 5 – Fit the Motor Assemblies to the Main Board
First, attach an encoder wheel to the inside shaft of each motor. Just push it on so that it is flush with the end of the shaft. It may take some pushing to get it on, and when it is on it will be a bit floppy. This is normal
Now use the 4mm, M3 screws, 2 for each motor, to screw through the main board into the pillars that you fitted into each motor mount in step 3
Step 6 – Assemble the Front Caster board
Use 2 of the 8mm, M3 screws to screw through the caster, through the caster PCB and into the 24mm, M3 pillars. Ensure the header pins are on the opposite side to the caster, and the same side as the pillars.
Step 7 – Fit the Caster Board to the Main Board
First push the extended 6-pin header into the header on the bottom of the main board, then plug the assembled caster board into the 6-pin header as shown below
Finally screw the 2 remaining 8mm, M3 screws through the main board and into the top of the pillars from the caster board. Tighten up well.
Step 8 – Fit the Raspberry Pi
You can use a Model A, A+, B or B+. You cannot use a Zero (you can if you use 1.6mm spacers on the pillars opposite the GPIO header)
Push the 40-pin header onto the header on the main board
Then push the Raspberry Pi, upside down, into the 40-pin header, ensuring that all the pins line up and the mounting holes on the Raspberry Pi match the pillars
Screw the 11mm, M2.5 Male-Female pillars in well to hold the Pi firmly
Step 9 – Fit the Battery Board
Standard 6 x AA battery board shown. Fitting the other types is the same
Making sure that the LEDs marked 0 through 7 are at the front, use the 6mm, M2.5 screws to fix the battery board tightly to the 4 pillars.
Note that these pillars all carry power and/or signals, so it is important that they are all screwed in well. Failure to attach screws or pillars properly will result in failure of the Pi2Go.
Step 10 – Add the Wheels
Push on the wheels
And the build is complete!
Now go to the Programming Pi2Go Mk2 article to get it going