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Thread: Miniature drill press vise

  1. #21
    metric_taper's Avatar
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    These look like aluminum castings for the main parts of the machines. Is this also part of your hobby to do castings? If not, how are you creating the sand mold texture, as I've seen a few miniatures that are not castings and always amazed at the surface simulation techniques used.
    I don't think I've ever seen an old photo of a horizontal mill that used that sort of cutter to machine a channel. I assume you modeled this cutter after a method used long ago.

    I do have a Rockford #2 miller, ~1930 with a Lima overhead belt conversion. The owner of the machine shop I purchased it from had to sell it, as his workers always wanted to use it vs a modern mill. It does spin slow, but has power feed in all three axis. It also has a similar external drive shaft that is telescoping and has universal joints. #9 B&S spindle taper.

    Thanks for such enjoyable pieces of art.

  2. #22
    Christophe Mineau's Avatar
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    Hi Marv,
    Your work is really wonderful !
    I was thinking about you during my last small vacation in London in February. As I was visiting the Science Museum, I saw a wonderful cabinet representing a miniature old time metal shop, with lots of machines, all powered with overhead belt and a steam boiler. And everything alive !
    I shot a little video (medium quality I am afraid), but I thought I could share that with you all, so I've just uploaded it to Youtube :

    Cheers !
    Christophe
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    Paul Jones (05-14-2018)

  4. #23
    mklotz mklotz's Avatar
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    Quote Originally Posted by metric_taper View Post
    These look like aluminum castings for the main parts of the machines. Is this also part of your hobby to do castings? If not, how are you creating the sand mold texture, as I've seen a few miniatures that are not castings and always amazed at the surface simulation techniques used.
    I don't think I've ever seen an old photo of a horizontal mill that used that sort of cutter to machine a channel. I assume you modeled this cutter after a method used long ago.

    I do have a Rockford #2 miller, ~1930 with a Lima overhead belt conversion. The owner of the machine shop I purchased it from had to sell it, as his workers always wanted to use it vs a modern mill. It does spin slow, but has power feed in all three axis. It also has a similar external drive shaft that is telescoping and has universal joints. #9 B&S spindle taper.

    Thanks for such enjoyable pieces of art.
    PM Research sells the casting kits. You can see their offerings here...

    https://www.pmmodelengines.com/produ...achine-models/

    They also sell engine and boiler kits. I've built one of their boilers and recommend the kits because the engineering is done for you and the required copper isn't easy to obtain for the home shop guy.

    Novices assume that casting kits are easier to build than building from stock material. In reality, the opposite is true. Holding castings for machining can be very difficult, often requiring purpose-built jigs and fixtures. While the finished product looks more authentic, the time to produce a working model is increased significantly.

    Castings are very unforgiving about mistakes. The bed of the model lathe has four precisely spaced pyramidal ways. Lacking CNC I had to work out a HAM (Human Assisted Machining) scheme on paper, then verify it by using it to machine a test piece. After QCing that, the bed could be machined. Had I messed this up, it would have required ordering a new bed casting and waiting for shipment. With bar stock, it would have been a much easier build-up of brazed parts.
    ---
    Regards, Marv


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  5. The Following 2 Users Say Thank You to mklotz For This Useful Post:

    metric_taper (05-07-2018), Paul Jones (05-14-2018)

  6. #24
    mklotz mklotz's Avatar
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    Quote Originally Posted by Christophe Mineau View Post
    Hi Marv,
    Your work is really wonderful !
    I was thinking about you during my last small vacation in London in February. As I was visiting the Science Museum, I saw a wonderful cabinet representing a miniature old time metal shop, with lots of machines, all powered with overhead belt and a steam boiler. And everything alive !
    I shot a little video (medium quality I am afraid), but I thought I could share that with you all, so I've just uploaded it to Youtube
    I remember that shop model, Christophe. When in London, I always spend some time at the Science Museum while my wife haunts the Victoria & Albert Museum across the street.

    The realistic touches like the common workbench with all the vises and tools laid out are impressive. Also, I would love to get in there and make some measurements of that planer. I don't have one of those for my Lilliputian shop. The machines are, naturally, British in design. While many American machines are descended from these designs, they all have their differences. It's educational to see how things evolved.

    Thanks for taking the time to make the video. I've added it to my bookmark list of amazing models from around the world.
    ---
    Regards, Marv


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  7. #25
    ranald's Avatar
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    That is one big "Redhead" you have there! LOL, thanks for posting . you must have som.............me workshop! and a we bit of time to use up.
    Regards,

    Ranald


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