Pivot is an open source robotic art piece similar to Mark Setrakian's Axis 1 and 2. Here is a video about how I designed and built it
| Part | Quantity | Approx Price | Total | Notes |
|---|---|---|---|---|
| LX-16A Servo | 15 | $20 | $300 | You also need the wires and plastic mounting rings that come with these. |
| JoyStick | 1 | $21 | $21 | |
| 2 x 0.4 x 8 mm Machine Screws | 400 | $0.0946 | $38 | Exact qty is 300, but you should get some extra. |
| 12V Power Supply | 1 | $7 | $7 | |
| AC Power Connector | 1 | $7 | $7 | |
| PETG Filament | 1kg | $23 | $23 | |
| Plaster of Paris | 1 | $10 | $10 | |
| Round Power Switch | 1 | $3 | $3 | |
| Power Connector | 1 | $7 | $7 |
| Part | Quantity | Approx Price | Total | Notes |
|---|---|---|---|---|
| ESP32 DevKit | 1 | $7 | $7 | |
| 8V Buck Converter | 1 | $7 | $7 | |
| 5V Buck Converter | 1 | $11 | $11 | |
| Molex Spox 3pin Connectors | 5 | $0.26 | $1.30 | |
| 1000uF Electrolytic Cap | 4 | $15 | ||
| 10uF Electrolytic Cap | 1 | |||
| Tri-State Buffer: SN74LS241N | 1 | $9 | $9 | |
| Logic Level Shifter SMD: TXS0108EPWR | 1 | JLC | ||
| 1k Resistor SMD: 0603WAF1001T5E | 1 | JLC | ||
| 10k Resistor SMD: 0603WAF1002T5E | 1 | JLC | ||
| 100nF Cap SMD: CC0603KRX7R9BB104 | 2 | JLC |
| Part | Quantity |
|---|---|
| tip.STL | 5 |
| fingerA.STL | 5 |
| knuckle.STL | 5 |
| palm.STL | 1 |
| mid.STL | 1 |
| base.STL | 1 |
To make this machine do its magic, every ".py" file in the root of the "MicroPython" directory must be uploaded to the ESP32. I used the utility "rshell" to do this. Also the ESP32 must first be loaded with a MicroPython binary (tested on v1.17).