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    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RB7NO5I3N26N3K2ZBSWHWCNETYFXDIGD/?format=api",
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    "message_id": "[email protected]",
    "message_id_hash": "RB7NO5I3N26N3K2ZBSWHWCNETYFXDIGD",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/V3XGVLPO7AOWXPOYXWFT3YAB5IVPEZH4/?format=api",
    "sender": {
        "address": "rjansson (a) cfl.rr.com",
        "mailman_id": "9b211bcd8a0642788e6dc055f3930699",
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    },
    "sender_name": "Dick Jansson-rr",
    "subject": "[eagle] Re: 125x180 Module Assembly",
    "date": "2007-10-16T23:19:54Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/REUBVOZOHJWTMH4SNN4KGVVFIOW5HQK6/?format=api",
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    "content": "Chuck:\n \nThese are all quite valid suggestions. On PCB mounting, the center supports\nwill still be needed for the keeping of the self-resonance of the PCB up\nabove the 200Hz area. These suggestions will be given consideration.\n \nFor Juan, using socket head cap screws certainly can be done, but I suspect\nthat you are trying to use a very well worn Phillips screw driver. The ONLY\nPhillips screw driver has to be one with a hardened tip, such as those that\nare used with a magnetic hex driver tool. With these 4-40 screws if there is\nany wear in the Phillips recess that screw is waste basket material, and\nproperly used you just cannot have enough torque to pop the tool without\nshearing off the screw head. This also tells me that your torquing of the\nscrews has been unnecessarily high causing the standoff posts to lose their\ngrip.\n \n'73,\nDick Jansson, KD1K\n <mailto:[email protected]> [email protected] \n <mailto:[email protected]> [email protected] \n-----Original Message-----\nFrom: Chuck Green [mailto:[email protected]] \nSent: Tuesday, 16 October, 2007 22.22\nTo: Dick Jansson-rr\nCc: Bob Davis; AMSAT Eagle\nSubject: Re: [eagle] 125x180 Module Assembly\n \nHi Dick,\n \nIt looks like you intend the PCB to go over the lip of the front of the \nbase plate and screw to it. Any chance of doing the same on the sides? \nMight you put threaded holes along the sides for that purpose? The PCB \nwould be more securely held along those sides and, more important to \nsome applications, there would be better thermal conductivity from that \npart of the PCB to the frame of the box. You might also be able to \neliminate some of the stand-off's which would allow more of the PCB for \ncomponents.\n \nAnother thought, which might not be compatible with the first thought... \nI see that the box lid has \"ears\" that come down over the front \n(connector) plate and a screw through each of them. Any chance of \nreversing that and having the ears on the front plate with a screw \nthrough the cover from the side? That would help with space for \nconnectors on the front plate a little.\n \nLooking good!\n \nChuck\n \nDick Jansson-rr wrote:\n> \n> Bob:\n> \n> Attached are three pdf views of the proposed revised Eagle module, and \n> open view, fully closed view, and a view w/o the PCB. It has been a \n> lengthy day getting all of the darned 0.5mm cover bends correct and \n> holes properly placed for full mating of the cover with the baseplate \n> (such things as 0.581mm hole placement discrepancies - ugh!). If built \n> from the drawings that can be made from these objects, there should be \n> a good fit in the real hardware.\n> \n> I do not presume as to what the \"real\" next step wants to be, as I do \n> not propose to make the 2D drawings until the discussions have settled \n> down to agree that this is what we collectively like, or at least \n> collectively accept. Please advise.\n> \n> '73,\n> \n> Dick Jansson, KD1K\n> \n> [email protected] <mailto:[email protected]>\n> \n> [email protected] <mailto:[email protected]>\n> \n> ------------------------------------------------------------------------\n> \n> _______________________________________________\n> Via the Eagle mailing list courtesy of AMSAT-NA\n> [email protected]\n> http://amsat.org/mailman/listinfo/eagle\n>   \n\n\n",
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