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How to check total thermal reliel on thru pin holes

jc teyssier

Hello group,

i am requested to insure that the total thermal relief copper cumulate on all layers will not be greater than a value.

This would be for soldering purpose, to avoid "cold" holes

Any advice how to adress this?

Jean-Charles

  • DavidJHutchins

    Below is an example skill function that will report the total 'thermal' widths for each through-hole pin in the design, I'm not sure what the best way to handle 'full-contact' pins are however...

    procedure(Get_ThmtThermalWidths()
    let((total connections)
    (total=0.0)
    foreach( comp axlDBGetDesign()->components
    when( comp->symbol
    foreach( pin comp->pins
    when(and(pin->definition pin->isThrough)
    (total=0.0)
    connections=axlDBGetConnect(pin t)
    foreach(con connections
    when(con->thermal
    foreach(seg con->segments
    (total=plus(total seg->width))
    )
    )
    )
    (axlMsgPut "pin %s.%s x %g y %g total_width %f"
    comp->name pin->number
    (xCoord (pin->xy)) (yCoord (pin->xy))
    total
    )
    )
    )
    )
    )
    )
    )
    axlCmdRegister( "get_thmtthermWidths" 'Get_ThmtThermalWidths ?cmdType "general")

    Below is an example of the output:

    \t (00:15:03) pin J3.26 x 191.95 y 2340.09 total_width 64.000000
    \t (00:15:03) pin J3.25 x -201.75 y 2340.09 total_width 120.000000
    \t (00:15:03) pin J3.24 x -288.36 y 2340.09 total_width 144.000000
    \t (00:15:03) pin J3.23 x -595.45 y 2340.09 total_width 160.000000

  • jc teyssier
    in reply to DavidJHutchins

    I use this and it woks fine for me. Thank you (5 month...)

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