2 layers27.9 × 16.5 mm
2 layers48.3 × 48.3 mm
DiffPanTilt
gongminmin/DiffPanTilt1A design of differential pan tilt platform
- Size
- 48.3 × 48.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 34
- Pads
- 97
- Tracks, vias
- 61, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Jan 2026
- Updated
- 28 Sep 2026
Overview
DiffPanTilt is an open-source printed circuit board by gongminmin, from the gongminmin/DiffPanTilt repository on GitHub, published under the MIT licence. It is a 2-layer board of 48.3 × 48.3 mm with 18 parts on 34 nets, routed with 61 tracks and 0 vias.
Its parts include 9 connectors, 2 capacitors, 2 resistors and 1 switch. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdDifferential Pan-Tilt Platform
A compact pan-tilt mechanism that achieves 2 degrees of freedom (pan + tilt) using only two stepper motors.
Instead of traditional independent servo/pan-tilt setups, this design uses differential drive: the direction is controlled by the speed difference and direction difference between the two motors.
Inspired by the excellent original design by darmaal.
Features
- True 2-DOF motion using only 2 motors
- No gears or belts on the output axes (low backlash potential)
- Compact form factor
- Suitable for lightweight cameras, LiDARs, laser modules, antennas, etc.
- Open hardware + open firmware
Safety Warning
Mechanical hazard.
Moving parts can cause pinch injuries or entrapment.
Do not put fingers or loose clothing near the mechanism while powered.
If you are new to building motorized mechanisms, proceed with extra caution and always keep hands clear during testing.
Directories
3DModel: STL or STEP files ready for 3D printing.Circuit: Electronics design in KiCad projects.Code: Control code.Doc: Detailed documents.
License
Distributed under the MIT License. See LICENSE for more information.
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2, H3 |
| 1 | 0.1uF | Capacitor_THT:C_Rect_L4.6mm_W3.8mm_P2.50mm_MKS02_FKP02 | C2 |
| 1 | 12V Input | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 2K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 470uF | Capacitor_THT:CP_Radial_D12.5mm_P5.00mm | C1 |
| 1 | 5V Output | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | BT | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J4 |
| 1 | Display | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J9 |
| 1 | Power | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J1 |
| 1 | Stepper 1 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | Stepper 1 Power | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | Stepper 2 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | Stepper 2 Power | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | Switch | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW1 |
Questions
How big is the DiffPanTilt PCB?
It measures 48.3 × 48.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DiffPanTilt use?
18 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the DiffPanTilt KiCad files?
From the gongminmin/DiffPanTilt repository on GitHub, at the commit this page was made from: the board is Circuit/DiffPanTilt.kicad_pcb and its schematic Circuit/DiffPanTilt.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DiffPanTilt design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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