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    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RFJ4E5DSNIO7QB3SO3PPLZCWYJKWL4GW/?format=api",
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    "message_id": "[email protected]",
    "message_id_hash": "RFJ4E5DSNIO7QB3SO3PPLZCWYJKWL4GW",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/KKQVFXZVSYCHTOUSWUR3BCRG7F32DO6E/?format=api",
    "sender": {
        "address": "rjansson (a) cfl.rr.com",
        "mailman_id": "9b211bcd8a0642788e6dc055f3930699",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/9b211bcd8a0642788e6dc055f3930699/emails/?format=api"
    },
    "sender_name": "Dick Jansson-rr",
    "subject": "[eagle] Re: Still Even Another Revision",
    "date": "2007-10-18T23:57:02Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VVITR5I37TWZDAL6CQZ72JN6FO7ZJSIT/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ZMBILQ3SUBYHUMF2HBYV44QEP2W5AXOF/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/O6FS4K4QDUAKNHP2EJ47BRCBDOKZ2GTP/?format=api"
    ],
    "votes": {
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    },
    "content": "Chuck:\n \nWill 4.4mm suffice for your clearance in the center at the connector plate?\n \nRick's suggestions don't make very much sense as there is just not all that\nmuch clearance space, inside of the spacecraft, to remove a 180mm PCB\nassembly. when it is assembled with all of the (even simplified) cabling and\nconnectors. I am with Juan in this matter as these PCB assemblies need to be\nhandled with the greatest of care, considering all of the very small and\n\"tender\" components and their junctions. Such removal must be done on a\nproperly equipped bench environment.\n \nDick Jansson, KD1K\n <mailto:[email protected]> [email protected] \n <mailto:[email protected]> [email protected] \n \n-----Original Message-----\nFrom: Chuck Green [mailto:[email protected]] \nSent: Thursday, 18 October, 2007 20.51\nTo: Dick Jansson-rr\nCc: Bob Davis; AMSAT Eagle\nSubject: Re: [eagle] Still Even Another Revision\n \nHi Dick,\n \nGiven this design (no access without removing the module), I like it better\nand better. I still have one *big* concern and that's the center mounting\nscrew for the front plate. The intrusion of the base plate into the PCB area\nto accommodate this screw bothers me a lot. You point out that it does not\ntouch the PCB but it definitely precludes a connector at this location which\nI see as a severe limitation on the connector area of the front plate. I\njust measured a right angle flight Sub-D connector and its pins protrude\nthrough the bottom of the PCB almost 1.5mm. I also measured a right angle\nSMA connector and its pins protrude through the bottom of the PCB almost\n2.5mm. I hope you can do something about this. I fear that the connector\nplate area usefulness may have actually been degraded from the original\ndesign.\n \nCan you give us a view that shows the inside of the base plate directly\nbehind the front plate?\n \nI'm looking forward to a dimensioned drawing. I suspect I'll have more\ncomments then.\n \nRick's suggestion of a base plate that includes the sides, back, and (I\nwould add) possibly the front gives us something like the modules for AO-51.\nIt probably would be stiffer, although I suspect the base you have just\ndesigned is stiff enough (although you might be able to make the base plate\nlighter if the sides/back/front were integral). I doubt there is any\nadvantage to being able to insert the PCB from the front due to clearances\nwithin the satellite but you can evaluate that better than I. It would give\nmodule builders the opportunity to secure heat producing parts such as\nTO-220's directly to the walls (I did this quite a bit for P3D modules I\nbuilt). I know that these can be tricky to machine due to the flexing of the\nwalls if they get too thin. My $0.02 worth.\n \nChuck\n\n\n",
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