Toward a Summit Modular Standard

Toward a Summit Modular Standard

The Problem: One-Off Designs

Summit Prototype Lab has designed many useful things, each one optimized for its specific purpose. But each design is an island. A sensor module designed for one product cannot easily be adapted to another. A mounting system works only for one form factor. Future revisions require complete redesigns.

The long-term product should not be one bin, one fixture, or one sensor. The long-term product is the interoperable engineering system connecting them.

Core Principle: The Accessory Remains Stable; The Adapter Changes

Rather than designing new mounting points for each new product, we design:

1. Stable, standard mechanical and electrical interfaces that change slowly
2. Adapters that change frequently to fit new use cases and manufacturing environments

This inverts the traditional design approach: instead of bending each new product to fit legacy mounting points, we design products that can attach anywhere through appropriate adapters.

Mechanical Interface Research Areas

Candidate Mounting Environments:

Products might need to attach to:

• Workbench and table systems
• Wall-mounted systems and rails
• Pegboard configurations
• DIN-rail infrastructure
• Aluminum extrusion systems
• Magnetic base systems
• Mobile carts and rolling bases
• Machine enclosures and fixtures

No single mounting system fits all contexts. The goal is to design a core product interface that can connect to any of these through purpose-built adapters.

Candidate Locking Mechanisms (under investigation):

• Slide-lock systems: Fast, tool-free, reversible
• Quarter-turn locks: Compact, secure, widely understood
• Dovetail interfaces: Precise alignment, high retention
• Captive fasteners: No lost hardware, positive engagement
• Magnetic retention: Fast, tool-free, adjustable
• Tool-free latches: Quick release, minimal training

Dimensional Standardization:

Products should:

• Use common incremental spacing (e.g., 25mm, 50mm)
• Follow standard height and width proportions where practical
• Maintain consistent thickness and weight per size class
• Define interface planes clearly
• Allow stacking and modular extension

Material and Manufacturing Flexibility:

The core interface must survive production via:

• Additive manufacturing (3D printing, SLS, etc.)
• Subtractive methods (CNC machining, routing)
• Injection molding and casting
• Sheet metal and extrusion
• Composite manufacturing

Interface specifications should describe the functional requirement (load capacity, alignment tolerance, retention force) rather than the manufacturing method.

Electrical Interface Research

Shared Connector Standards:

Products should share common:

• Power connectors (standard voltage, current, physical connector)
• Expansion bus interfaces (for future modules)
• Signal routing conventions
• Grounding and shielding approaches

Device Identity and Configuration:

Each product should maintain:

• Unique hardware identity (MAC address, serial number, UUID)
• Firmware version and configuration
• Commissioning and setup history
• Calibration records

Backward Compatibility and Evolution

Core Tension: Standards must be stable enough to enable interoperability but flexible enough to evolve.

Proposed Approach:

1. Major versions (1.0, 2.0, 3.0) indicate interface changes that may break backward compatibility
2. Minor versions (1.1, 1.2, 1.3) indicate additions that remain backward compatible
3. Adapters bridge versions when necessary
4. Deprecation timeline of 3-5 years before a major version is abandoned

Manufacturing-Method Independence

Principle: The interface should outlive the first production method.

A product designed for injection molding should transition to CNC machining, additive manufacturing, or sheet metal without fundamental redesign of its external interface and connection points.

Open Questions

1. Should one standard emerge, or specialized standards for different product categories?
2. How should standards be versioned and documented?
3. What governance model ensures standards evolve without becoming obsolete?
4. Should standards be published openly or maintained internally?
5. How quickly can candidate mechanisms be prototyped and evaluated?

Current Status

Decision record phase. Research into candidate mechanisms is ongoing.

This document represents Summit's thinking about the future structure of its product line. No standard has been finalized, adopted, or deployed. All proposed mechanisms remain under investigation.

Roadmap

1. Phase 1 (Current): Research and prototype candidate interfaces
2. Phase 2: Design pilot products using candidate standards
3. Phase 3: Gather operational feedback and iterate
4. Phase 4: Formalize standard and communicate to partners
5. Phase 5: Support long-term evolution and backward compatibility

Next Steps

• Prototype mounting mechanisms with various products
• Evaluate manufacturing feasibility of candidate approaches
• Gather feedback from manufacturing partners
• Design adapters for existing products
• Document interface specifications clearly