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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/DB2THE3YBVVFDFX4SCIMJV5IMBOHIL4A/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "CAD7_4hyTvgxKMS+vycGFOGZFkwofvOt8SzTwGK6D9WcZPHUzFA@mail.gmail.com",
    "message_id_hash": "DB2THE3YBVVFDFX4SCIMJV5IMBOHIL4A",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/DB2THE3YBVVFDFX4SCIMJV5IMBOHIL4A/",
    "sender": {
        "address": "curt.laumann (a) gmail.com",
        "mailman_id": "c039453128ce4d17ac6e58bd9aea0804",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/c039453128ce4d17ac6e58bd9aea0804/emails/"
    },
    "sender_name": "Curt Laumann",
    "subject": "Re: [amsat-bb] 3D printing and threaded inserts",
    "date": "2020-09-03T04:37:21Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Paul,\n\nRight!  This 3D printing enables so many different projects, is relatively\nEASY and LOW COST !!!  To share some of the salient points for those not\ntoo familiar with 3D printing:\n\nA good-quality printer can be had for $250  (Ender3 is a VERY popular\nprinter)\nParts the size of your fist cost about $1 to $2  (roughly speaking)\nAs Paul noted, there are materials which nicely survive UV and heat.  You\ncould print PETG parts for outside, or in the heat of your car.\nParts take between an hour and a day to print, depending on size,\ncomplexity and density.\nFreeCAD software is really, really a nice match to what we do in amateur\nradio.  A couple of hams here in Tucson love it, and it is very nicely\nsuited to making ham radio widgets :)\nCura software (also free) is used to take the output of FreeCAD and create\n\"gcode\" which drives the 3D printer.\n\nThe heat insert tool that Paul referred to in his previous email can be\nseen at the link below:\nhttps://www.amazon.com/dp/B078K72615/?coliid=I1K4DNMRZKIRXN&colid=2BL2OM2F3I95L&psc=1&ref_=lv_ov_lig_dp_it\n\n\nAs for material, I get filament made by eSun which prints very nicely.  I\nuse PLA+ for stuff indoors, and PETG for outdoor products.\n\nFun Fact:  I print 27 whistles in a batch (takes 23 hours), add split\nrings, and give them away as gifts.  They're about a dime each.\n\nAnother Fun Fact:  \"Thingiverse\" contains 1000's of projects that can be\nprinted.\n\nAll of this information is well known to avid 3D printer people, and I'm\nsure others can chime in with their perspective / ideas / product\nrecommendations.\n\nBOTTOM LINE:  If you like to build stuff, ANY stuff, and are willing to\nlearn a very minor amount of software, the payoff is very very high!\n\nCurt / K7ZOO\nTucson AZ\n\nOn Wed, Sep 2, 2020 at 9:05 PM Paul Andrews <[email protected]> wrote:\n\n> Curt,\n>\n> Nice presentation.  I also started 3D printing in May and recently\n> discovered heated brass inserts.  These items can really expand the range\n> of possibilities.  I have designed a folding satellite dish with 3D printed\n> parts and waterjet cut aluminum.  We recently improved the strength of a\n> few parts using the brass inserts for M3 bolts.\n>\n> A standard soldering iron works nicely but you can achieve better accuracy\n> using a soldering iron tip specially designed to install the inserts.\n>\n> What plastic are you printing?  I found that PETG is easy to print, UV\n> stable and will hold up in summer heat outdoors.\n>\n> 73 - Paul - W2HRO\n>\n> On Wed, Sep 2, 2020 at 10:39 PM Curt Laumann via AMSAT-BB <\n> [email protected]> wrote:\n>\n>> Hi All,\n>>\n>> To support my interest in building amateur radio equipment I recently dove\n>> into 3D printing.  I'm sure many are aware of the technique below, but\n>> still others might find it interesting.\n>>\n>> *You can easily install threaded brass inserts into 3D printed parts,\n>> making them very robust and useful.*  Feel free to view the PDF file at\n>> the\n>> link below for a brief introduction to this technique.\n>>\n>> Curt / K7ZOO\n>> Tucson AZ\n>>\n>>\n>> https://drive.google.com/file/d/1Pk_TxQrJCwZ3NnAyDzvdfZ9ijtQBwNNq/view?usp=sharing\n>> _______________________________________________\n>> Sent via [email protected]. AMSAT-NA makes this open forum available\n>> to all interested persons worldwide without requiring membership.\n>> Opinions expressed\n>> are solely those of the author, and do not reflect the official views of\n>> AMSAT-NA.\n>> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n>> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb\n>>\n>\n",
    "attachments": []
}