imrishabh18/nema-23-stepper-controller
A four-layer NEMA23 stepper motor controller PCB featuring an RP2040 MCU, DRV8452 dual-phase driver, USB‑C PD power input/protection, current and temperature sensing, status LED/buzzer, and optional magnetic encoder.
- Version
- 1.3.2
- License
- unset
- Stars
- 1
checks/fabrication-screen.json
{
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"fabricatorSelected": false,
"intendedOuterCopperOz": 2,
"screenedProfile": "JLCPCB published multilayer 2 oz minimum track width/spacing 0.15/0.15 mm",
"reference": "https://jlcpcb.com/capabilities/pcb-capabilities",
"byLayer": {
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},
"nominalSmallViaAnnularRingMm": 0.075,
"smallViaHoleDiameterMm": 0.3,
"smallViaPadDiameterMm": 0.45,
"finding": "The intended 2 oz outer copper conflicts with the existing 0.10 mm outer-layer tracks under the screened JLCPCB profile. Do not order this configuration without rerouting to accepted rules or a fabricator-approved process. Copper spacing, hole-to-copper and soldermask limits also require fabricator DFM. Switching to 1 oz requires a new motor-path thermal/current assessment.",
"assemblyExportWarnings": [
"J_USB pin-1/rotation unverified",
"D_PWR supplier pin-1 unverified",
"U_PD_BUFFER supplier and local pin-1 locations incompatible"
],
"otherOpenRequirements": [
"Confirm actual motor rear mounting pattern and heatsink attachment/base clearance",
"Select fabrication/assembly treatment of exposed-pad thermal vias",
"Qualify temperature/current behavior on the actual motor before full-current service"
],
"checkedAt": "2026-10-06T21:18:13.932Z"
}
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