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    1. Kit: ME, by (Yearly Subscriber) MODEL A MODEL is offline
      Builder Last Online: Aug 2017 Show Printable Version Email this Page
      Model Scale: 1/4 Rating:  Thanks: 1
      Started: 06-09-17 Build Revisions: Never  
      Supported Attribution Scratch Built

      Mieaux vaut tard que jamais! (Better late than never!)

      Well, its been a very long time since I last finished a model! The Beatles were still hoped to reunite! and Nixon was just about to be toppled!
      (Also, this is my first scratch built A Model A Model, (finally!) model!)

      Both of the above statements are true, however, I have studied model making my whole life, and been around it and model makers, since I was just a little Donald. I was the manager of Paul Freiler's Historical Models for half my life, at the time I left it. I then did a too short stint making models for the movies. I worked in Northrops display model group for a few months, and I have been working in the concept car field for nineteen years!

      I am afraid that I might have been "Hijacking" some of your threads, I do go on and on! but never of course was that my intent, and if I have offended anyone? please accept my apologies!

      All that said, here I go!


      A Model A Model, (finally!)
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  1. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Welcome home! Roger!

    The "Red Stuff" is called pitch. It is also seen as a greenish/dark grey. And is used by silversmiths to hold sheet stock
    while working the surface in a process known as Repousse' and Chasing, or in German: Metall-Treiben. -I've employed it here to undo some of the work I did in haste. (It allowed me to recreate domed surfaces that I had made concave, and to help reduce the effect of too vigorous hammering.) Its a "second operation" technique that often is the only way to "save" a part that's gone wrong.

    In addition to the pitch, you can also use the firm but not the hard plasticine non-drying clays offered in most art supply shops. Historically panel-smiths had used lead! (Do not use Lead!)(Some still do! despite the hazard of exposure, it is toxic and accumulative!)

    Think of it as a "Giving anvil/Vise" kind of thing? -That's removable.

    -Don


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #47

  2. Roger Zimmermann's Avatar Yearly Subscriber
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    Roger
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    Thanks for the explanation, Don. It seems that somebody explained me that material years ago; can be used to silver solder 2 difficult to held parts if I'm right.
    QUOTE QUOTE #48

  3. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Roger,

    If I were to recommend a safe and easy way to hold parts together, I'd recommend DELFT clay! -Its the stuff that jewelers use to do "Fine" sand A Model A Model, (finally!) castings. Basically a very fine mesh sand A Model A Model, (finally!) with a lot of clay, and some oil/wax? (I'm not sure what this last component is), as a binder. The stuff can be pressed around anything, or you can make a small container of it, loosely packed, push your objects in as far as you think necessary, and then firmly pack the sand A Model A Model, (finally!) to seal the deal. It can handle the heat of molten bronze, copper, brass, or your favorite, aluminum. It will barely notice silver soldering.

    If your interested, then I recommend buying from a supplier of jewelry tools and such. Be sure to buy the DELFT clay, here in the states we also have a PETROleum based, or BONDed, sandy clay, which works just as well, is cheaper, but it gives off a LOT of smoke and refinery fumes! It also "burns" in the areas that contact the molten metal, slowly using up your stock. (Oh! If you like to experiment? do not mix the two! Bad Idea!)

    For holding things to be soldered either would do, as well as traditional "Green Sand A Model A Model, (finally!) ", I've also cut up the cheap soldering boards to use as fixtures and I wonder about metal shot? Not lead of course, but aluminum, copper, and steel are available as "shot" or filler, and a shallow bowl might be the ticket?

    I do go on and on? -Don



    PS: The pitch would not be my first choice, it is a little messy to work with, and might start to move as it warmed up. It eventually will combust if a flame sits on it too long!


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #49

  4. Roger Zimmermann's Avatar Yearly Subscriber
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    Roger
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    Thanks Don for the detailed explanation. As my model is slowly coming to an end (at least as parts fabrication) and I don't intend to begin another one, I will pass on that material. I'm sure life would be easier with it; however, I managed to solder what I had, sometimes with hit and miss.
    QUOTE QUOTE #50

  5. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Beethoven created nine symphonies.


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #51

  6. Roger Zimmermann's Avatar Yearly Subscriber
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    Roger
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    You cannot compare...I will no more begin a 10 years project which I'm not sure to be able to finish. Small items, why not (I cannot stay doing nothing)...
    QUOTE QUOTE #52

  7. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    My apologies! I am being selfish.


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #53

  8. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    THANK YOU! EGON! (Not wanting to "Hijack" another's thread) WOW! -Its always exciting to discover such Great Work! Laurent Pierson, of Austrailia? or New Zealand? -The little bug logo is a Weta. -He may be associated with the special-effects company of that name? or perhaps its just an identity that modelers that far south are adapting? Excellent work! -Its going to take a few days to absorb all that info. He's forming his nose panel over what look to me to be plastic sheet called SINTRA, and his engine blocks are cast or metal SLA? (Its always fun to do the forensic model thing!) Thank you again Egon!


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #54

  9. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    ​I don't know why I went in that direction? -He's French! -AND very GOOD!


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #55

  10. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    A Model A Model, (finally!)
    Hello, I've been away from my bench tending to other things, but I hope to make some progress this week with the front cross member.


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #56

  11. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    This is the prototype and again it is a continuous part stamped as a whole. It has many different radi, some quite large. and is "S" shape in cross section.


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #57

  12. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    A Model A Model, (finally!)
    Some views of the prototype.


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #58

  13. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    A Model A Model, (finally!)
    My intention is to make a pattern of the "A" surface, and then, with a few twists, make two conforming dies out of a low temperature melting metal. And using those dies in my press, create my needed front cross member.

    Initial pattern making starts with slightly oversize blocks.


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #59

  14. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    A Model A Model, (finally!)



    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #60

  15. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Tankerman! Chris-

    Thank you for the online source you introduced on Thierry's thread! They have the rivets I'm going to need in the not too far future! Thanks!

    -Don


    A Model A Model, (finally!)
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #61

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