Introduction: Squirrel Chasing Robot
Using a bunch of 3d printed parts, I made a robot to chase squirrels.
First, the nerf barrel (with a squirrel on top) rotates every 30 seconds from left, to center, then to right. If the robot detects a squirrel, stage one is initiated. The robot charges forward then retreats. If the squirrel is still detected, the robot fires a nerf dart toward the offending creature. If the pest persists, the robot blows up a balloon and (using a heated resistor) pops the balloon.
Step 1:
First, there are a lot of parts. I used an Arduino Uno, a motor shield, a robot base (from MakerShed or Amazon), nine AA batteries, two servo motors, a pump motor (vacuum pump, Karlssonrobotics.com), a motion detector (parallax), a ball bearing (vxb bearings) and many 3d printed parts.
The design and print files for 3d parts can be found at:
http://www.thingiverse.com/thing:372541
You can find someone nearby to print the files using http://www.3dhubs.com
Step 2:
The software and block diagrams are here.
Attachments
Step 3:
Start by assembling the robot base.
Step 4:
Add a servo motor to the top plate.
Step 5:
Print the squirrel barrel and paint the squirrel.
Step 6:
Attach the servo mount to the barrel using a soldering iron to weld the parts together. Add the servo motor. It is the release mechanism for the rubber band that fires the nerf dart.
Step 7:
Add a servo horn to the connector. Affix the connector/horn to the servo motor on the top plate.
Step 8:
Add the pump holder and balloon adapter.
Step 9:
Attach the bearing holder and bearing so that they line up with the servo adapter.
Step 10:
Drill a hole through the adapter and nerf barrel. Fasten with a small bolt.
Step 11:
Attach the pir sensor to the nerf barrel. Route the wires so that they will not bind when the assembly rotates.
Step 12:
Add the front warning holder. Print and insert the "No Squirrel" warning.
Step 13:
The "Balloon Popper" is a resistor on a stick. The little pump will not reliably pop balloons (at least I can't find cheap crummy balloons when I want them). After the balloon is inflated, the resistor gets hot and assures a pop.
Step 14:
Put it all together and you will have the most complex, delicate, high tech squirrel repeller available.
Step 15:

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8 Comments
7 years ago
This, And Nellie.
I died ;)
8 years ago
It would be cool if you make it have a kinect sensor on it, my dog would go crazy!
8 years ago
Make it bigger, put some gass engine on it, some machinery and scare the hell out of the chipmunks :-P
8 years ago
If I could, I totally would!!! I LOVE watching squirrels get terrorized... this HAS to be better than sicking the dog on them while they are dangling from bird feeders!!!!
8 years ago
I hate squirrels. Terrible creatures.
8 years ago on Introduction
Süper.
i will try it
http://elektrikbilim.com/
8 years ago on Introduction
This is intense! TAKE IT SQUIRRELS
8 years ago on Introduction
Wow, this is awesome! If only it worked on gophers...