Design & Development Case Studies & White Papers

1. Turning To Integrated Driver Electronics For BLDCs 2/28/2020

   Despite advantages, brushless DC motors (BLDCs) have presented their own challenges in terms of technology, design, and capabilities. Typically, complex and bulky cabling has been required between motor and amplifier to attach discrete logic components “outside” the motor frame. With the latest advances in driver electronics that now can be integrated directly into brushless motor designs, BLDCs are evolving rapidly to become faster, smaller, more versatile, more controllable and more cost-effective.

2. Reasons For Turning To Slotless Technology 2/28/2020

   Brushless motors have gained broader appeal and greater acceptance in industry for a wider range of applications previously dominated by brush commutated products. At the same time, manufacturers have further sought to challenge conventional wisdom by improving brushless motor design. An example of how far these innovations have progressed involves the slotless (instead of slotted) construction of the brushless motor’s stationary member, or stator.

3. Brush DC Motors Turning More Advanced 2/28/2020

   Brush DC motor Innovations have been driven by overall marketplace needs. Motor manufacturers have been obliged to offer more power in smaller packages in the race to keep pace with miniaturization. Motor designs have incorporated new components in new ways to help extend motor life, and new or improved materials have been tapped with the goals to promote motor quality and output. Beyond these basics, however, current and future brush commutated DC motors continue to move in highly advanced directions.

4. Customization To Suppress Electromagnetic Interference In DC Motors 2/28/2020

   A variety of active and passive approaches can be adopted to reduce electromagnetic interference (EMI) in systems that rely on precision motion control. For applications ranging from medical diagnostic to office automation equipment, the need to suppress conducted and radiated noise is critical, especially in light of increasingly stringent electromagnetic compatibility (EMC) requirements. The challenges are to maintain system integrity and DC motor performance without adding significant cost or weight to a subassembly.

5. Cartridge Brush Design For DC Motors And Gearmotors 2/28/2020

   The traditional method for mounting copper or silver graphite brushes in brush commutated DC motor and gearmotor assemblies has been to solder the brushes onto standard cantilever springs to enable the required constant contact with the commutator. However, this conventional spring design carries inherent drawbacks that can be overcome by housing the brushes within a specially designed cartridge and utilizing torsion springs to ensure desired even force over the life of a motor.

6. Prototype Tooling Can Help Avoid Product Launch Delays And Cost Overruns 11/19/2019

   The process for launching a product with an injection-molded component has continuously developed over decades. Prototype tooling plays an important role in this process.

7. 3-D Printing Creates Big Innovation From Tiny Parts For Medtech Firm 11/5/2019

   Many new health care technologies have advanced over the past decade to enable doctors to perform more procedures in their offices over hospital only settings. However, hysteroscopy — used to identify or treat problems of the uterus — has been slower to respond to this shift. 

8. Medtech Startup Smells Success With Additive Manufacturing 10/28/2019

   Combining the sense of smell with rapidly evolving virtual reality (VR) technology — enabling medical applications including helping soldiers with post-traumatic stress disorder (PTSD)— is the mission of OVR Technology, a startup in Burlington, Vt.

9. Part Marking Using Pad Printing And Laser Engraving 9/23/2019

   When designing parts for injection molding, you may need to consider finishing options, which can help improve a part’s mechanical properties, enhance surface finishes, facilitate the final assembly process, or just further customize your part or parts.

10. PEEK, PEI, LSR, And Other Material Options For Medical Prototyping 9/11/2019

    Developing medical device parts is a high-stakes process, and material choice is an important decision. Five strong contenders include PEEK, PEI, and PPSU; polycarbonates; medical-grade liquid silicone rubber; and 3D-printed titanium and ABS-like WaterShed XC 11122.