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    1. Kit: , by (Yearly Subscriber) nickedw is offline
      Builder Last Online: Jan 2022 Show Printable Version Email this Page
      Model Scale: 1/8 Rating:  (1 votes - 5.00 average) Thanks: 2
      Started: 07-10-20 Build Revisions: Never  
      Not Supported Restoration Scratch Built

      Inspired by some nice work on this site and other places recently, I rescued a couple of long-forgotten very old, very sad Pocher kits from my mothers house.

      They were both built very badly by an incompetent idiot. I know this to be true, as the builder was a younger version of me, to the tune of about 25 years.

      anyhow, the items in question are a mostly completed Mercedes 540 and the Ferrari F-40 engine I'm currently rambling on about.

      The Mercedes is parked for now.

      So to the F-40 motor.

      Having recently finished my MFH Brough Superior, I've been a bit spoiled regarding what a decent multimedia Ferrari F-40 engine scratchbuild kit can look like in 2020. I also had a look at sourcing an autograph F-40 engine transkit with little success, plus I'm not really willing to pay the crazy money the last few in the world would command.

      So bearing those two things in mind, I set about the old motor, which looked a bit like this when I started



      Pretty grim.


      So having striped it down and removed all the paint and other goo, standby for some modelling heresy - Pocher models are a bit rubbish. OK, actually really rubbish IMHO. there, I said it.



      OK so I know I'm looking at this with through modern eyes, but I never understood what they were supposed to be even at the time - expensive, terrible fit, often inappropriate materials, screw together, easy assembly, not intended to be painted in some cases, so I don't believe they were ever actually aimed at modellers.


      I was planning on replacing some of the worst bits with various scratch-built and turned items. To cut a long story short, apart from maybe the gearbox, it's all the worst bits.


      So I rolled my sleeves up and got stuck in with something 'easy' to start with. I give you the Delco Remy 105A Alternator as fitted to the venerable Ferrari F40.




      So armed with my trusty PC, iPad pro, apple pencil, shapr3D, fusion 360, resin printer, and mini lathe I set forth.







      So far so good. A steep learning curve involving CAD and resin printing supports then ensued.

      Some time later...





      Add primer ...


      And finally paint ...







      Compared to the Pocher part ...



      So although this is one small piece, it does prove my workflow which is now repeatable for the rest of it. I've learnt a load of new skills including CAD and how to get good results from my cheap little resin Ferrari F-40 engine scratchbuild printer. Which BTW I'm absolutely delighted with (Elegoo Mars) if you want to google it.

      This is my new go-to modelling tool.

      Thanks for looking.

      Regards,

      Nick


      Ferrari F-40 engine scratchbuild
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  1. nickedw's Avatar Yearly Subscriber
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    Nick
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    Clutch Assembly,


    Rear cover now with oil seal


    Complete flywheel and clutch in situ


    Regards,

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #107

  2. nickedw's Avatar Yearly Subscriber
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    Nick
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    Took some better pictures now I’ve added the flywheel Hall sensors. My printer has even coped with the threads on the studs if you look closely- yes the washers, nuts and studs are all printed too.




    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #108

  3. nickedw's Avatar Yearly Subscriber
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    Nick
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    Latest renders,






    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #109

  4. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    So nice!

    Nuts, washers, and threads!!!!

    Proper 21st Century modeling!
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #110

  5. nickedw's Avatar Yearly Subscriber
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    Nick
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    I’ve got into producing everything as separate parts, that way I can get ultra-crisp demarcation lines by painting each component in isolation - such as the studs for example, they also sit slightly differently than if I just printed them as part of the main component, well I think so anyway, that may well be in my head!

    Anyway first prints of the oil pan and front cover tonight




    A few tweaks required, but not bad.

    Thanks for looking

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #111

  6. nickedw's Avatar Yearly Subscriber
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    Nick
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    Latest pictures






    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #112

  7. nickedw's Avatar Yearly Subscriber
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    Nick
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    Wasn’t happy with the front cover so I have redrawn it now, making the various humps and bumps more curvy and less flat-faced than my first version.




    Been working on the heads today, or rather a common centre section with all the detail shared between the left and right banks, which I’ve finished and will ‘hand’ tomorrow


    Thanks for looking,

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #113

  8. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    A subtle eye. Changing the draft on the walls? -or the radius? on the tangents?
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #114

  9. nickedw's Avatar Yearly Subscriber
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    I redrew the shape a little, but mostly more radius. The only problem is when I showed them to my tame F40 guy, he prefers the first version!
    ah well.

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #115

  10. MODEL A MODEL's Avatar Yearly Subscriber
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    (Which is more accurate?)

    That one is the way to go.

    People who view our work, do not necessarily understand a modelers motivation. -And when asked an opinion, they may do so aesthetically, which is subjective.

    "Ah well" indeed!
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #116

  11. nickedw's Avatar Yearly Subscriber
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    Nick
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    Quote Originally Posted by MODEL A MODEL View Post
    (Which is more accurate?)

    That one is the way to go.

    People who view our work, do not necessarily understand a modelers motivation. -And when asked an opinion, they may do so aesthetically, which is subjective.

    "Ah well" indeed!
    You just prompted me to look a bit harder for a decent image…



    And I can see now why Enzo preferred the first one. So actually they are both wrong, 2 of the 3 elements are indeed flat faced, but one is even more rounded than my second version and I can see from the angle of this photo, an easy fix!

    Thanks for making me look properly :)

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #117

  12. nickedw's Avatar Yearly Subscriber
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    Nick
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    Two pieces of news today:-

    1. I finally finished my F40 motor








    Not only did I finish it, I finished it the night before the IPMS Ferrari F-40 engine scratchbuild Scale modelworld championships in Telford and came home with this yesterday



    so that was nice.

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #118

  13. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    That is deserved!

    And inspirational!

    Congratulations!
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #119

  14. PeterDaicos's Avatar Member
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    Steve
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    Quote Originally Posted by nickedw View Post
    There’s more to it of course.





    If you were designing a real engine, it would be the opposite. So the crank shaft, con rods, pistons etc would be your starting point and they eventually would dictate the shape of the block, cylinder heads etc.

    In my head, this is a model, so by definition cosmetic - if it looks OK, job done, right? So outside in is for me.

    Only later did I realise that actually inside out makes more sense. All the Seemingly random bumps and humps on various castings are dead obvious when the internals are considered.

    So I learnt the unseen but easily derived ( eg cylinder/valve spacing) informs external shapes much more readily than guessing ever could.

    For example, the pent angle on the combustion chambers is driven by where the valve stems emerge on the top of the cylinder heads.

    OK bad example as the whole thing is hidden, but it all informs the various geometry of this thing.

    Sorry if this is a bit rambling, but it might help somebody.

    Regards

    Nick
    Yes, you have to get inside the original engineers head somewhat. For instance right now I am drawing-up a scaled engine. I have a low-res line drawing of the 1:1 Ferrari F-40 engine scratchbuild engine but that doesn't feature dimensions - you have to work off a known figure, usually a bore or stroke size. Then you have to factor in the width of the drawn lines, usually splitting them...anyway, in seeking the width of the cylinder deck for the 44mm bore engine, I measured it as 90mm - a nice round figure and the engine is Italian and so metric. But then I thought, engineers like symmetry so what if the width was actually 88mm - 2 x bore size? That is a 0.3mm difference on a 1:6 engine eminently noticeable. Another time I was doing a timing chest cover which had bolt bosses scattered randomly all over it, on no plain . I had no drawings for that so wasn't too bothered at where they were placed. Then I found a 1:1 Ferrari F-40 engine scratchbuild drawing realised all the bolts, while scattered, were all spaced at 96mm c-c. Obvious really but looks can be deceiving!!
    QUOTE QUOTE #120

  15. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    So much of our work is, discovery. Isn't it? -and surprisingly exhaustive!

    But you make it look easy!

    Merry Christmas!
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #121

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