wiki:AllBoardsLayoutCheckJuly2018

All Boards

  • OK HL Standard silkscreen requirements
    • OK HL All text right side up or 90 rotate if needed
    • OK HL All ref des same height (default 0.07")
    • OK HL No visible text under footprints
  • OK HL All schematic symbols use consistent property "Catalog Number" i.e. for mfg part number
  • OK HL Check hole size for terminal block (should be 2mm per drawing)
  • OK HL Arrows for daughter board orientation
  • OK HL Mounting holes
    • OK HL Confirm whether connected to GND or not
    • OK HL Confirm hole/pad size (pad size large enough for standoff/nut/screw head)
  • OK HL Check ALL copper areas
    • OK HL proper coverage (completely surround thru-hole pads connected)
    • OK HL Reasonable width for current required
  • OK HL Fill out PN/Supplier fields

Auxiliary Board

  • 5V regulator
    • OK HL Check thermal requirements for estimated power dissipation
    • OK HL Check capacitor requirements
    • OK HL Make sure there is room for a heatsink and put it on the BOM
      • OK HL (add a heatsink part to schematic for BOM)
  • OK HL Confirm with Brandon that the input is 12V
  • OK HL Move traces away from mounting hole
  • OK HL Check ALL copper areas
    • OK HL proper coverage (completely surround thru-hole pads connected)
    • OK HL Reasonable width for current required
  • OK HL Expand 12V area across board at Y=2.5 in
  • OK HL Move R1, R2 up a bit and align them
  • OK HL Move P1..P6 references out from under PWM board outline
  • OK HL Remove random via in SW corner of M4
  • OK HL632 Standoff size
  • OK HL Move MH out from under M3
  • OK HL Heatsink on U2
    • flat package
    • OK HL move regulator
    • OK HL heatsink mounting hole connection
  • OK HL RJ14 footprint

Motherboard

  • Renumber references:
    • OK HL Male connectors (P1-P16 are perfect)
    • OK HL Resistor packs should be RP1...
    • OK HL USB and RJ-14 should be J1...
  • OK HL Delete R6 and R7 from the design (A, B) go in parallel to the two RJ14 jacks
  • OK HL Re-route (A, B) to run next to each other (they are a differential pair)
  • OK HL Delete or hide the reference designators "MH1" etc on mounting holes on the silkscreen
  • OK HL USB footprint has spacing errors
  • RJ-14 footprint is wrong. Mechanical holes should be above signal holes with pin 1 in upper left.
  • OK HL Hole size for power jumpers is wrong. See drawing for 952-2207-ND. Recommended hole size is 2mm.
  • OK HL Change P/N for 16 pin headers (P1-P16) to increase height.
  • OK HL Double check USB footprint
  • OK HL Mark out rectangle on Arduino footprints to designate uUSB connector
  • OK HL Bigger Pin 1 Markings on Daughterboards
  • OK HL Change MH to 632 size (0.3 pad, 0.15 drill)

Pi hat

  • OK HL Double check circuit
  • OK HL Resistor Jumpers for direction signal
  • OK HL Pi hat move RJ away from conn.
  • OK HL rotate GPIO breakout headers
  • OK HL label signals on headers

Vial Board

  • OK HL no text cut off
  • OK HL label thermistor
  • OK HL Bring back ref. designators
  • OK HL Change PWR/GND to +/-
  • OK HL label IR LED
  • OK HL Check header SS size
  • OK HL Move R4 to the right
  • OK HL Diagonal lines to PWM, TACH(FS?) labels
  • OK HL Move header pin to the right
  • OK HL Move ID text upwards
  • OK HL Add row definitions (+/-) to both sides of header
  • OK HL Add SS outline for Thermistor
  • OK HL Thermistor DNP
  • OK HL Delete D1, D2
  • OK HL Move traces away from MH's
  • OK HL Set R1 to 82
  • OK HL Get R3 from Brandon
Last modified 4 years ago Last modified on Jul 25, 2018, 10:39:49 AM