A pioneer in AI-driven wellness technology partnered with ADVANCED Motion Controls to overcome the “Prototype-to-Production” gap.
By transitioning from standard servo drives to a custom dual-axis architecture, the customer reduced their motion control hardware costs by 50% while maintaining the high-bandwidth performance required for safe, human-centric robotic therapy.
The Challenge: Clinical Precision in a Consumer Form Factor
The customer was engineering a “Robot-as-a-Service” platform designed to deliver automated, data-driven massage therapy.
- Performance: The application required dual robotic arms capable of impedance control (force feedback) to interact safely with the human body.
- Constraints: The electronics had to fit within a sleek, sound-dampened consumer enclosure, ruling out bulky industrial cabinets.
- Safety: As a collaborative robot (cobot), the system demanded strictly reliable Safe Torque Off (STO) integration.
The Hurdle: The “Commercial Viability” Gap
During the R&D phase, standard FlexPro® drives proved the technical concept, delivering the required torque density and EtherCAT precision. However, as the project moved toward mass production, the unit economics of the prototype were unsustainable.
The engineering team faced a “Make or Break” decision:
- Downgrade: Switch to low-cost, commodity servo drives (sacrificing the haptic precision and safety features that defined the product).
- Stall: Delay launch to renegotiate with suppliers.
- Innovate: Find a way to keep high-end performance at a consumer price point.
The Solution: Architectural Consolidation
ADVANCED Motion Controls proposed that the cost barrier wasn’t in the technology, but in the embalaje. Since the robot’s arms always operated in pairs, single-axis drives were creating redundant overhead.
AMC developed a Custom Dual-Axis Drive that consolidated two axes of control onto a single Printed Circuit Board (PCB).
- Eliminated Redundancy: By sharing the logic circuits, power input, and communication interface, AMC removed the need for duplicate connectors, housings, and processors.
- Simplified Integration: The 2-in-1 design reduced internal cabling by half, improving airflow within the compact chassis and reducing assembly time.
- Unified Comms: The custom board presented a streamlined EtherCAT node, simplifying the master controller’s network map.
The Results: Scaling with Confidence
The architectural pivot allowed the customer to bridge the gap between prototype performance and production targets.
- 50% Cost Efficiency: The dual-axis approach effectively halved the per-axis cost, beating the price point of lower-performance commodity competitors.
- Commercial Launch: The savings secured the “Bill of Materials” (BOM) target, allowing the company to move immediately into high-volume manufacturing.
- Long-Term Roadmap: The partnership has evolved into a continuous improvement cycle, with current engineering focused on further integrating the drive electronics directly into the robot’s structural elements.
