EP#440: HMLV - High Mix Low Volume

In this episode of Circuit Break, Parker Dillmann and Stephen Kraig dive deep into the concept of HMLV (High Mix Low Volume) PCB manufacturing. They discuss the challenges and advantages of HMLV, contrasting it with high volume manufacturing methods used by giants like Apple and Foxconn. They also share personal project updates, including Parker's PWM fan controller and Stephen's work on LED matrix driving. The episode wraps up with insights into MacroFab's latest platform updates and the creation of an ultimate glossary of electronics and PCBA terms.

Key Discussion Points:

• Introduction to HMLV: What does High Mix Low Volume mean?
• Differences between HMLV and high volume manufacturing.
• Flexibility and specialized equipment required for HMLV.
• The importance of a skilled workforce in HMLV environments.
• Personal project updates: Cyclone Pulse Wrangler and LED Matrix driving.
• The significance of proper inventory management in HMLV.
• Insights into MacroFab’s platform updates and their new glossary of electronics terms.
• Real-world examples of companies utilizing HMLV in their manufacturing processes.
• The role of HMLV in prototyping and early design cycles.
• Discussion on the transition points between low volume and high volume production.
• Challenges faced with parts handling in HMLV.
• The necessity of adaptability in both workforce and equipment for HMLV.
• Parker’s PWM fan controller circuit review and schematic discussion.
• The impact of battery voltage on digital inputs in automotive systems.
• Analog inputs and thermistor readings for temperature measurements.
• Push-pull current drivers and the need for logic gates to prevent run-through situations.

Relevant Links:

• MacroFab Platform Updates
• Ultimate Glossary of Electronics & PCBA Terms
• Cyclone Pulse Wrangler

Community Questions:

• What are your thoughts on HMLV manufacturing? Have you encountered any specific challenges or advantages in your projects?
• How do you manage inventory in a high mix low volume production environment?
• What strategies do you use to transition from low volume prototyping to higher volume manufacturing?
• Have you implemented any interesting circuits or solutions in your personal projects? Share your experiences!

MacroFab:

This show is brought to you by MacroFab, which provides a platform for electronics manufacturing services (EMS), hardware development, designing and prototyping for individuals, startups, and businesses. Key MacroFab services include PCB (Printed Circuit Board) fabrication, assembly, and testing. Customers can use MacroFab's platform to upload their PCB designs, select components, and specify manufacturing requirements.

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