In the intricate world of live entertainment, where spectacular visual effects and seamless transitions are paramount, the precision and reliability of motion control systems are non-negotiable. Modern theater, concert events, and immersive experiences increasingly rely on sophisticated automation to orchestrate the dynamic movement of scenery, LED walls, and even performers, transforming stages into living, breathing canvases. This demanding environment calls for robust, flexible, and intuitive control solutions that can meet both artistic aspirations and stringent safety requirements.
Creative Conners: A Vision for Accessible Stage Automation
At the forefront of this technological evolution is Creative Conners, a company renowned for designing and manufacturing modular motion systems that bring complex stage animations to life, ensuring both visual impact and uncompromising safety. With a unique, vertically integrated approach, Creative Conners serves an exceptionally broad customer base, ranging from high-profile productions like Cirque du Soleil and the Dave Matthews Band to regional theaters and even schools staging local productions of classics like Les Misérables. This wide reach is a testament to the company’s core philosophy: to make sophisticated stage automation approachable and accessible to production teams of all types, whether for global touring shows or permanent installations.
The company’s offerings typically include modular machinery, standardized control hardware, and intuitive software, all designed to be combined and configured with ease. This commitment to user-friendliness has been a defining characteristic of Creative Conners, particularly influencing its decision to embark on a significant re-evaluation of its core motion control platform, ultimately leading to a pivotal partnership with Performance Motion Devices (PMD). This strategic collaboration aimed to overcome existing technical limitations, enhance motion quality, and accelerate development, all while preserving the modular and approachable design philosophy that underpins the Creative Conners brand.
The Central Hub: The Stagehand Controller
Central to Creative Conners’ ecosystem of motion systems is the Stagehand, a standardized control box that acts as the brain for various applications. While the specific machinery deployed might vary widely to suit diverse production needs, the Stagehand controller remains largely consistent across projects. This control unit serves as the crucial interface with variable-frequency drives (VFDs), encoders, and vital safety systems, executing the precise cues generated by Creative Conners’ proprietary Spike Mark software. These cues are meticulously designed to define every aspect of motion – from the exact positioning and speed of elements to dwell times and intricate coordination with other stage actions. Once triggered, these commands are executed locally by the Stagehand controller, ensuring real-time responsiveness and reliability.
The Imperative for Innovation: Confronting Legacy Limitations
For many years, Creative Conners relied on legacy motion control chips from Texas Instruments to power its Stagehand systems. While these devices served their purpose for a time, the evolving demands of modern stagecraft, coupled with increasing technical constraints, began to highlight their limitations. As stage automation became more sophisticated, the shortcomings of the older ICs became more pronounced, particularly in areas critical to both artistic expression and operational safety.
One of the most significant technical hurdles was the inability of the old ICs to allow independent control of acceleration and deceleration profiles. As Christian Basse, Creative Conners’ senior controls engineer, explained, "On the old IC, we were locked to symmetric accel/decel. Whatever you loaded for the acceleration you had to use for decelerate." This constraint clashed directly with the nuanced visual and safety requirements of stage motion. For instance, in many scenarios, there’s a desire for elements to move quickly into position but then come to a gradual, smooth, and visually deliberate stop. Symmetric profiles often resulted in either abrupt stops or unnecessarily slow overall movements, neither of which was ideal for dynamic theatrical effects or performer safety.
Even more limiting was the inability to change acceleration parameters on the fly. This posed a substantial challenge for complex performer flying effects, where motion characteristics frequently need to be adjusted dynamically throughout a single cue to achieve natural-looking and safe trajectories. The inability to adapt in real-time restricted the creative possibilities and added layers of complexity for engineers trying to work around the system’s inherent limitations.
Beyond technical performance, practical issues also emerged. The older motion controller was aging, and its availability became increasingly sporadic, a problem only exacerbated by the global supply-chain disruptions that impacted the semiconductor industry during the pandemic. Creative Conners needed a reliably procured solution that could seamlessly integrate into its modular design philosophy and provide a robust foundation for future innovations.
A Strategic Pivot: Embracing PMD’s Magellan MC58113
After a thorough evaluation of several alternatives, Creative Conners made the strategic decision to adopt Performance Motion Devices’ (PMD) Magellan MC58113 motion control IC for a new generation of its Stagehand control PCB. This new board, paired with a microprocessor and a local HMI display, now forms the sophisticated core of the updated Stagehand controller. The selection of the MC58113 marked a significant leap forward, addressing the critical limitations of the previous system and opening new avenues for enhanced performance and functionality.
Unlocking New Capabilities: Precision, Safety, and Flexibility
The integration of the PMD Magellan MC58113 brought a suite of transformative improvements to Creative Conners’ motion control systems:
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Asymmetric Acceleration and Deceleration (S-curve Profiling): This was the single biggest improvement. The MC58113’s support for asymmetric S-curve velocity profiling allows for independent control over acceleration and deceleration ramps. This means stage elements can now accelerate rapidly to speed, but then decelerate gently and smoothly, creating visually compelling and safe movements. As Basse articulated, "We want to hurry up, get onto stage, get moving… but then we want a nice, smooth, deliberate-looking stop." This capability is vital for theatrical effects where fluidity and visual grace are paramount, and it significantly enhances safety by allowing for controlled, predictable stops.
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Absolute Encoder Support: The MC58113’s ability to support absolute encoders offers a critical safety and operational advantage. Unlike incremental encoders, which lose positional information upon power loss, absolute encoders retain their position even when the system is unpowered. Basse highlighted the significance: "If it’s going to move without the machine and the controls being powered, you’re not going to lose the position." This feature is invaluable in rescue scenarios, such as when a performer needs to be manually lowered using mechanical brakes during a power outage. Upon power restoration, the system instantly knows the exact position of the stage element or performer, eliminating the need for time-consuming and potentially hazardous re-homing procedures. While not universally required, absolute encoders are essential for permanently installed infrastructure hoists and for the most demanding, high-end productions that push the boundaries of stage automation, ensuring maximum safety and operational continuity.
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Bidirectional Speed Signal for Hydraulic Systems: The MC58113 restored a crucial capability for Creative Conners: the generation of a ±10-V speed signal using an external Digital-to-Analog Converter (DAC). This feature is particularly necessary for controlling hydraulic valves, which interpret negative voltage as reverse motion and positive voltage as forward motion. "When we moved to a newer TI controller, we lost that bidirectional signal," Basse explained. "Moving to the PMD controller gave us the ability to throw in an external DAC and do a bidirectional signal again." Restoring this capability was vital, ensuring that Creative Conners would not have to turn away specialized applications that rely on hydraulic actuation, thus broadening their market reach and solution versatility.
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Advanced Diagnostic and Tuning Tools: The PMD controller includes built-in tracing and monitoring tools, empowering Creative Conners engineers to visualize motion behavior over time. This capability is instrumental in diagnosing issues, fine-tuning performance, and ensuring optimal operation. Furthermore, the MC58113’s highly tunable position filters help the system maintain precise target accuracy. Basse emphasized the company’s dedication to motion quality: "We really care about the quality of motion… not just that it looks nice but that it’s where it’s supposed to be when it’s supposed to be." In tightly choreographed productions, where timing and spatial accuracy are paramount, these features ensure that positional accuracy is maintained alongside visual smoothness.
Accelerating Development and Fostering Collaboration
Beyond the hardware capabilities, one unanticipated benefit for Creative Conners was PMD’s C-Motion C/C++ software library. Instead of investing considerable engineering resources in writing low-level serial communication code and message-packing routines from scratch, the Creative Conners team could leverage PMD’s command-driven Application Programming Interface (API). This meant sending a motion command became as simple as making a call to a C-Motion function. "That saved so much time and has been invaluable to us," Basse stated. This dramatically accelerated firmware development, allowing Creative Conners’ relatively small engineering team to dedicate their efforts to higher-level functionality, user experience improvements, and the core logic of their Spike Mark software, rather than reinventing fundamental motion control plumbing.
The partnership extended beyond software libraries, demonstrating PMD’s commitment to customer support. At one point, Creative Conners required a higher encoder resolution than supported by the standard implementation. PMD’s engineering team worked directly with Creative Conners, delivering a custom firmware update to meet their specific needs in approximately one week. This level of responsiveness and collaborative problem-solving underscored the value of the partnership, ensuring Creative Conners could continue to innovate without being constrained by off-the-shelf limitations.
Broader Implications and the Road Ahead
The integration of PMD’s Magellan MC58113 motion control IC into Creative Conners’ Stagehand controllers represents more than just a component upgrade; it signifies a strategic enhancement that has profound implications for the entire live entertainment industry.
Enhanced Artistic Expression: The newfound precision, flexibility, and dynamic control offered by the PMD solution unlock unprecedented possibilities for designers and directors. More complex and fluid movements, safer performer flying effects, and seamless scenic transformations can now be choreographed with greater confidence and artistic ambition. This translates into more immersive and visually stunning experiences for audiences, pushing the boundaries of live performance.
Elevated Safety Standards: Features like absolute encoder support and highly tunable position filters directly contribute to enhanced safety protocols. The ability to maintain precise positional awareness even during power interruptions is a critical safety net, particularly for applications involving performers. This commitment to safety reinforces Creative Conners’ reputation and provides peace of mind for production teams and venue operators.
Market Expansion and Operational Efficiency: By restoring and enhancing capabilities like bidirectional hydraulic control, Creative Conners can now serve an even wider array of specialized applications and high-end customers. The accelerated development afforded by PMD’s software library also means faster time-to-market for new features and improved overall operational efficiency for Creative Conners. This allows the company to reinforce its philosophy of making advanced automation accessible across diverse market segments.
Future Innovations: Creative Conners is already exploring further advancements with PMD’s product line. The team is investigating PMD’s multi-axis motion controllers for orchestrating even more tightly coordinated and complex movements across multiple axes simultaneously. Of particular interest are PMD’s integrated servo solutions, such as the ION/CME N-Series intelligent drives. One N-Series option, offering 1000-W power output, has captured significant attention. An integrated, higher-power solution would enable a new generation of "smart machines" where drive electronics are mounted directly onto the machines themselves. This could dramatically reduce the size and weight of control cabinets, increase lifting capacity and speed, and move towards a more distributed, intelligent control architecture on stage. This aligns with broader industry trends toward compact, powerful, and intelligent automation components, paving the way for even more flexible and efficient stage rigging and automation systems.
In conclusion, Creative Conners’ strategic adoption of PMD’s Magellan MC58113 motion control IC marks a significant milestone in stage automation. By addressing critical technical limitations and leveraging PMD’s advanced capabilities and robust support, Creative Conners has not only elevated the quality and safety of its motion systems but has also positioned itself for continued innovation, ensuring that the magic of live performance remains at the cutting edge of technological possibility. This partnership underscores the vital role of specialized motion control technology in empowering creative vision and delivering unforgettable experiences for audiences worldwide.
