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Version Control

Information for late-stage prototypes and production-ready components

  • Tracking for versions shall be simple: version X.X or vX.X. Rapid iteration will mean moving through versions very quickly. Moving from v1.0 to v2.0 of a component's design would only take 10 iterations. We will remain flexible and adaptive to rapid changes.
  • Naming conventions for components shall be a short, brief description of the item, with key elements separated by commas. For example, an M8 socket head bolt that is 40mm in length would be named "Bolt, M8, Socket Head, 40mm".
  • Some components will contain both a part record AND serial mumber. This is for warranty purposes, to aid in repairs, and to track high-value or controlled components.
  • Part records of manufactured components shall follow this scheme:

AAAAA-BBBBB-CCCCC-YYYYMMDD-ZZ

Where:

  • AAAAA is the part name
  • BBBBB is the part number
  • CCCCC is the parent assembly
  • YYYYMMDD is the Year/Month/Day of manufacture
  • ZZ is the part revision

Example: We have a mounting bracket for a drive motor, with the part number of 4, belonging to the torso assembly. It was manufactured on 12 May, 2025, and is revision B. The part record would be:

MTRBRACKET-0004-TRSOASSY-20250412-B

This record scheme can also be applied to COTS components not manufactured in-house, where:

  • AAAAA is the name of the COTS component
  • BBBBB is the model of the COTS component (as per the manufacturer)
  • CCCCC is the parent assembly (no change from above)
  • YYYYMMDD is the date the COTS component was physically inspected for serviceability
  • ZZ is the revision of the COTS component (if applicable)

Example: A frameless brushless motor, model RI115-PH, belonging to the torso assembly. It was inspected on 15 May, 2025, passing inspection, and is revision A. The part record would be:

MTRBLDCNOFRAME-RI115PH-TRSOASSY-20250415-A

Important notes for revision codes:

  • Codes denoting prototype components not yet approved or ready for release will start with the uppercase letter X followed by a version number of the prototype.

  • Codes denoting components approved for production and release will be denoted with uppercase letters used in sequence, beginning with A. The letters I, O, Q, X and Z will be omitted. When the single letters have been exhausted, the revisions following Y shall be AA, AB through AY. Should AA to AY be exhausted, the next sequence shall be BA, BB, etc. Revision letters shall not exceed two characters. (as per ASME Y14.35M-1997, Section 5)

  • *The following manufactured components entering production for release models will be serialized based on class:

    • PCBs (A)
    • Compute Systems (B)
    • Power Supplies (C)
    • Motors (D)
    • Communication Devices (E)
    • Sensors (F)
  • Components matching the above descriptions that are manufactured in-house will be designated a serial number using the following scheme:

X-YYYY-ZZZZZZZZ

Where:

  • X is the item class (see the list above)
  • Y is the year of production
  • Z is the item number, increasing in value by one for each item produced