A DIY robot made out of junk laying around the house.

Overview

Below a quick overview of the content.

  • Introduction and showcase video
  • Tracks
  • Body
  • Head
  • Arms
  • Controlled destruction
  • Wiring
  • Control

Introduction & showcase video

For Halloween I've decided to build a robot using only junk laying around the house, a bit like Frankenstein, but with a robot.

Tracks

Let's take a closer look. Starting from the bottom, we have the tracks allowing Jake to move around. You can see the two DC motors in the bottom and the two axis in the front. The tracks connect both gears to create his tracks. It's all mounted to the body with some pieces of scrap wood, screws, rope and a lot of hot glue.

Body

The body is an old metal trashcan painted two different kinds of silver, some safety tape and fridge magnet letters. All glued in place for extra strength.

Head

His head is an old box, with some styrofoam eyes, a beard with mustache and a speaker for yelling. As a nice bonus, he can open his head up for extra storage! After cutting a hole in the trashcans lid we can fit a servo attaching it to the box so he can move his head.

Arms

His arms are two spoons, attached with two servos, mounted the same way as the head servo (cut hole, mount bracket, add servo).

Controlled destruction

To give Jake the worn down look, I've used a hammer, paint, a pellet gun, a lighter and many more. I've followed roughly the steps outlined here. It's a lot of fun!

Wiring

All the electronics are in his chest, in a box, mounted with two screws. See below for wiring schematics (crude).

1 = Powerbank
π = Raspberry
c = 16-Channel 12-bit PWM/Servo Driver
2 = 4xAA Battery holder
H = Head servo
LA = Left arm Servo
RA = Right arm servo
Speaker
Keypad
R = Relay
LT = Left track
RT = Right track
3 = 12 v Battery pack

12schematics_E860rOjTUe.jpg

Control

Jake is controlled by this keypad, you can find all the code in the attachments.

Bonus

A happy family picture to wish you a happy Halloween!

8 Bits and a Byte
We’re Dane and Nicole, two makers that create tremendously terrible tech, which we happily share with you on our channel!