techmannih/nema34-mounted-stepper-controller

A 48 V USB‑C PD 3.1 EPR NEMA‑34 stepper controller PCB combining STM32/TMC5160 control, external MOSFET motor bridges, protected power and regenerative braking, USB data, telemetry, diagnostics, status LEDs, and buzzer alarms.

Version
0.3.92
License
unset
Stars
1

engineering/mechanical/splice-evidence.json

{
  "manufacturer": "TE Connectivity",
  "part": "320559",
  "drawing": "C-320559 Rev V6, 16SEP2025",
  "archive": "engineering/mechanical/TE-320559-drawing.zip",
  "pdf_sha256": "9a67887bff930f87831e1dae405b8bb7e2c1f4d9b901cbe7360a127f9682a5b2",
  "retrieved": "2026-10-13",
  "source_url": "https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=320559&DocType=Customer%20Drawing&DocLang=English&DocFormat=pdf&PartCntxt=320559",
  "manufacturer_page": "https://www.te.com/en/product-320559.html",
  "length_max_mm": 32.13,
  "wire_insulation_diameter_min_mm": 2.03,
  "wire_insulation_diameter_max_mm": 3.18,
  "outside_diameter_mm": 5.6134,
  "qualification": "Manufacturer STEP replaces the provisional cylinder. CAD OD is nominal, not a toleranced finished-crimp dimension. V6 drawing still does not dimension exterior OD; 32.131 mm STEP length equals 1.265 inches and rounds to the drawing 32.13 mm. Delivered motor insulation must measure 2.03-3.18 mm. Crimp tooling, finished envelope, pull/continuity/insulation tests and physical retention remain unqualified. Older V2 drawing retained in archive for provenance.",
  "pdf_file": "ENG_CD_320559_V6.pdf",
  "cad": {
    "file": "c-320559-ae-3d.stp",
    "revision": "AE, 2021-06-09; currently linked by TE alongside Rev V6 drawing",
    "sha256": "4b9dc48d7054f3c570f3a335607f28da90600fcb796711b507de28e40bc0c5b3",
    "source_url": "https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=CVM_320559&DocType=Customer%20View%20Model&DocLang=English&DocFormat=3d_stp.zip&PartCntxt=320559",
    "mesh_count": 1,
    "axis": "STEP Z; upper end at Z=0; lower end at Z=-32.131 mm; XY centered on zero",
    "transform": "No scaling or rotation. Translate STEP XYZ by each splice upper-end XYZ in harness-layout.json.",
    "nominal_length_mm": 32.131,
    "nominal_radial_envelope_mm": 2.8067,
    "tessellation": {
      "linearUnit": "millimeter",
      "linearDeflectionType": "absolute_value",
      "linearDeflection": 0.02,
      "angularDeflection": 0.1
    }
  }
}