5-Channel Servo Controller & Robotics Testbench Enclosure
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Compact 5-channel servo controller & robotics console with OLED screen, 5 potentiometers, and 18650 battery power.
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5-Channel Servo Controller & Robotics Console
The RoboBox 5-Potentiometer Servo Controller is an expanded, portable desktop console built specifically for robotics makers, 5-DOF robotic arm testing, hexapod/quadruped servo alignment, and multi-knob macro control.
This enclosure features 5 independent rotary potentiometer channels, an OLED screen cutout for real-time angle display, an integrated 18650 battery holder, a rocker power switch, and a USB-C charging port for fully wireless, desktop testing.
⚡ Technical Features
Multi-Axis Control: 5 independent rotary potentiometers for simultaneous 5-DOF motion or multi-servo calibration.
Visual Telemetry: Dedicated panel cutout for a 0.96" I2C OLED display to monitor live servo angles, PWM signals, or battery status.
Integrated Wireless Power: Houses an internal 18650 Li-ion battery paired with a TP4056 USB-C charging module for untethered operation.
Durable Fastener Design: Reinforced mounting posts designed for M3 brass heat-set inserts to ensure reliable, repeated assembly and teardown.
Customizable CAD Source: Includes the complete parametric Autodesk Fusion 360 source file to easily adjust component tolerances, hole spacing, or mounting layouts.
🛠 Bill of Materials (BOM)
Component | Quantity | Description |
Microcontroller | 1 | Arduino Nano / Pro Micro / ESP32 (or MCU of choice) |
Potentiometers | 5 | Rotary Potentiometers (10k Ohm recommended) + Knobs |
OLED Display | 1 | 0.96" I2C OLED Display Module (128x64) |
Power Switch | 1 | KCD1 Miniature Rocker Switch (ON/OFF) |
Battery & Charger | 1 | 18650 Li-ion Battery + TP5100 USB-C Charger Module |
Fasteners | 4 | M3 x 10mm Hex Socket Cap Screws |
Threaded Inserts | 4 | M3 Brass Heat-Set Inserts |
3D Printed Parts | 3+ | Base Body, Top Lid, and Knurled Potentiometer Knobs |
🖨 Assembly & Print Tips
Print Settings: Recommended PLA or PETG with 3 perimeters/walls to ensure high thread strength around screw mounts.
Infill: 15% – 20% (Gyroid recommended for vibration resistance and lightweight durability).
Supports: Minimal supports required—only for the side rocker switch cutout and USB-C port opening.
Heat-Set Inserts: Press M3 brass heat-set inserts into the lower body mounting posts using a soldering iron set to ~220°C.
Color Scheme: Dual-color print (e.g., bright top plate with a neutral base) highlights the embossed "THE ROBOBOX" branding.
📁 Included Files
RoboBox_5Pot_Base.stl– Lower housing with internal 18650 battery holder and MCU tray.RoboBox_5Pot_TopLid.stl– Top plate with cutouts for 5 potentiometers, OLED window, and embossed branding.RoboBox_Knob.stl– Custom knurled potentiometer control knob.RoboBox_5Pot_Assembly.f3d– Fully editable Autodesk Fusion 360 source CAD file.
💡 Source Files & Customization
The full Autodesk Fusion 360 (.f3d) CAD model is included so you can customize panel text, adapt the layout for slide potentiometers, or modify internal component mounts!
If you find this project useful for your robotics testbench or desktop setup, please drop a Like, share your Make, and leave a Rating!