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    1. Kit: , by (Yearly Subscriber) nickedw is offline
      Builder Last Online: Mar 2021 Show Printable Version Email this Page
      Model Scale: 1/8 Rating:  (1 votes - 5.00 average) Thanks: 1
      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. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Looking at your progress and Roger’s Continental engine, and Ken’s, Four engines, -this forum has become quite the school for modeling techniques and approaches!

    All three of you have had to learn every little detail, form an opinion of how to proceed, and then each of you work in your own way to achieve a similar goal.

    Quite the school!
    QUOTE QUOTE #17

  2. nickedw's Avatar Yearly Subscriber
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    Nick
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    First print of complete left and right banks, slow progress!



    Regards

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #18

  3. nickedw's Avatar Yearly Subscriber
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    Nick
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    Still plugging away at the block, not much more to do on it now:-




    regards

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #19

  4. nickedw's Avatar Yearly Subscriber
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    Nick
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    Here’s the latest with an incomplete block, but nearly final heads and valve covers.

    I’m printing another set as these are scruffy and warped, which I tried to correct only after paint. I’m pretty sure I can take the warp out with warm water before paint now I’ve noticed it. I think this crept in during curing Ferrari F-40 engine scratchbuild , so went unnoticed until too late.

    That’s another advantage of modelling like this, if you mess something up it’s incredibly easy and cheap to just print another one rather than trying to salvage it.





    Regards

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #20

  5. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    This is great!

    I hope others will be inspired to follow your lead.

    Thank you for sharing!
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #21

  6. nickedw's Avatar Yearly Subscriber
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    Nick
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    Small update, I have reworked most of my prints now as well as optimising the finishes a little better, here are the finished valve covers




    Regards

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #22

  7. nickedw's Avatar Yearly Subscriber
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    Nick
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    Some slow progress




    Regards,

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #23

  8. nickedw's Avatar Yearly Subscriber
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    Nick
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    Latest progress




    I did actually get the lathe out to make the oil pressure sender and brass couplings for old time's sake.



    head gaskets from brass shim, only trial fitted at the moment, the head hasn't been torqued down yet :)

    Regards,

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #24

  9. nickedw's Avatar Yearly Subscriber
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    Nick
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    Latest update drawing all the water manifolds, cam end covers, and made a start on the very complex throttle bodies.




    Regards,

    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #25

  10. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Beautiful work! You must get a lot of satisfaction from this process.
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #26

  11. nickedw's Avatar Yearly Subscriber
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    Nick
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    Latest update:-


    Nick


    Ferrari F-40 engine scratchbuild
    QUOTE QUOTE #27

  12. Banditclone's Avatar Active Member
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    Ron
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    Incredible work. If you don't mind me asking how did you come by all the dimensions for this build? A combo of scanning the model parts in and 1:1 Ferrari F-40 engine scratchbuild prints. What software do you use? What format are your drawings in, and finished parts programs in. File extensions stuff like that. The biggie how much do you have tied up in 3d printer and what type. I am currently doing a 1/8 1977 pontiac firebird trans am. Nothing as ambitious as your build. I have a machining background so make sure you dumb it down for me. I have not written many part programs. But have changed a few. As I am a layman make sure you put it in technical terms and use small words lol. Have calipers and micrometers. I have even heard tales of microns
    Last edited by Banditclone; 08-14-20 at 02:20 PM.
    QUOTE QUOTE #28

  13. nickedw's Avatar Yearly Subscriber
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    Nick
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    A few questions there then!

    dimensions are pretty much made up, I'm using mostly fusion 360 on desktop and slicr 3D on an ipad pro.

    Fusion is free for non-commercial use which is amazing, I would highly recommend it. Fusion allows jpg images to be used as canvases which can even be scaled, for example basing something on a Pocher part I have I shot this:-



    you simply import as a canvas, drag out two points corresponding to the caliper jaws, and say its 59.9mm and it all snaps into scale and proportion and away you go.

    So that gave me my ‘God dimensions’ everything else came from internet photos squared up as much as possible with photoshop perspective warp then imported as canvases again.

    So the overall size is rightish ( according to Pocher!) and everything else is just by eye using internet canvases for proportionality and guesswork.

    Hope you’re not too disappointed!

    The most surprising thing of all is that my printer, an Elegoo Mars, prints down to around a micron resolution and cost around £200 which these days is about $200 no I didn't miss any zeros off. these things are pretty much free and never cease to amaze me.

    Yes nasty chemicals involved, cleanup and UV curing Ferrari F-40 engine scratchbuild required, but you soon get used to everything and the stuff you need is very cheap. Resin Ferrari F-40 engine scratchbuild runs at about £40 per litre

    File formats are less important these days as STEP and STL are universal - everything needs to end up as an STL for slicing which is how 3D printers work, they slice everything up into thousands of 2D layers in effect.

    The slicing software asks what you paid for your Resin Ferrari F-40 engine scratchbuild so it then tells you how long the print will take and the cost.

    The block is the biggest piece and costs just under £1 to print and takes about 5 hours at 1 micron layer size.

    Regards,

    Nick


    Ferrari F-40 engine scratchbuild
    Last edited by nickedw; 08-15-20 at 05:30 AM.
    QUOTE QUOTE #29

  14. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    So? Using the Pocher part is convenient, and if you did have "correct" dimensions, using your method, everything indexed to that one foundational part, everything would be more "correct-ish"?

    Unless someone has direct access to the actual parts, which a few people do, (but most of us don't), this is a very viable way to proceed!

    Thank you!
    -craftsmanship is a lifelong project of
    self-construction and self determination
    QUOTE QUOTE #30

  15. Banditclone's Avatar Active Member
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    Ron
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    Not disappointed at all. Clear concise instructions. I have also used photoshop and paint shop pro to warp images to get them squared up and true. A lot of Trans am birds out there that high res accurate photo's are scarce. I have a collection of different year birds of all factory 2nd gen birds. Even clone kits that were not accurate. I even have some custom color combo's. All flavors of pontiac goodness. I have also scanned every bird decal Ferrari F-40 engine scratchbuild of various scale I come across. Back to what you said about part dimensions and import of data. I will check out your methods sometime in the future give her a whirl when I reach a creative dry spell and have to walk away from my current build. It happens... thanks for sharing.
    QUOTE QUOTE #31

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