...
In terms of circuits, we used an Arduino, a breadboard, a 9V battery, and a 13-kg servo motor.
Arduino Code
The code we used reads the joystick’s input and checks how it’s being moved. When the joystick is adjusted, the servo motor responds by changing its position, which controls our arm to open and close. This allows the 4-bar crank mechanism to pick up and release objects smoothly.
Updated BOM:
Part | Purpose | Quantity | Price | Source |
|---|---|---|---|---|
2 ft x 2 ft Acrylic Sheet 6mm | Used for double rocker links and claw arms | 1 | $32.00 | TIW |
Rotary Bearings | Reduce friction at joints | 10 | Excluded from BOM | TIW |
6mm x 200 mm Bearing Shafts | Connect links | 5 | $3.20 | https://www.amazon.com/dp/B0D5D5L5CQ?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 |
Servo Motor | Actuate double rocker | 1 | Excluded from BOM | TIW |
Shaft Collars | Secure shafts | 14 | Excluded from BOM | TIW |