[carpe] 2016-09-27 CARPE Conscribillati: Soldering

jep200404 at columbus.rr.com jep200404 at columbus.rr.com
Wed Nov 23 09:49:14 EST 2016


show

    show existing solder on pads
    show flow on big pad of badger board
        without flux
        with flux

    use more flux
    use less solder
        a big convex ball of solder does not cause problems, but it hides them
        nice concave miniscus is indication that things are correct
    being too hot for a short time causes less damage to board than
    being barely hot enough for a long time

    show difference in how melted versus frozen looks:
        melted is smooth
        frozen is frosted (sometimes frozen is smooth also)

    browse dead hard drive board

        show nice miniscus

            surface mount
            through hole

    through hole

        clean up board

        if enough time, solder parts through badger board

            prototype:

                leave lead sticking straight out from board
                    don't "clinch" leads
                leave at least .1" to clip on to

        replace caps on motherboard

            (or just remove them and put them back in)

    surface mount

        remove fom dead hard drive boards

        put on badger board

    cable splice

        put cable from dead power supply
        on good power supply with wrong connector

pack

    lights

    regular laptop
        both USB cameras

            tripods for them?
            ask Russ to bring his also.

    eric's stuff to give away

    solder
        30 gauge
        normal

    Ungar soldering iron
        3-prong handle with candela socket
        stand
        23W heater
        45W heater
    20W princess soldering iron 3-prong

    heat gun
    thermal sensor

    mill bastard file

    bottle of flux
    q-tips
    hard flux

    solder wick
    solder sucker
        big old classic
        little good one from

    helping hands

    eye loupe
    magnifying visor
    extra reading glasses

    old camera
        charged batteries

    boards
        arm demo board

        BADGEr_ v4 bare PCB
            use it to show SMD soldering on

        boards to unsolder
            through-hole parts
            surface mount parts

    cardboard sheets to protect desktop

    dead power supply with right connector
    good power supply with wrong connector

do
    give away BADGEr_ v4 bare PCB

gave away

    BADGEr_ v4 bare PCB

    much Lego Mindstorm's stuff

    RC helicopter

    plasma globe kit

To get good answers, consider following the advice in the links below.
http://catb.org/~esr/faqs/smart-questions.html
http://web.archive.org/web/20090627155454/www.greenend.org.uk/rjk/2000/06/14/quoting.html


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