Results 1 to 5 of 5
  1. #1
    Join Date
    Aug 2019
    Location
    Huntington Beach CA
    Age
    31
    Posts
    2

    Default Patterns-Orientation and runner system suggestions

    Im looking for some advice on part orientation when gravity filling.

    I have a sump Im casting and I am at the stage of designing the runner system.
    The ideal orientation for this part (for ease of pattern making and runner system design) I feel would be to place the fins at the top.


    Images below.


    My concern is that with the fins at the top they will collect dross/slag and also not have a very high pressure for how thin they are.


    Its a big part. 220mm high and 1m long. Mass is 16Kg aluminium - runner system.


    Should I be concerned about this? Or could it not be a problem if I put some risers in there?


    Bigger question. How would you do the runner system? Any advice much appropriated


    This is my project if anyone is interested.
    https://oldschool.co.nz/index.php?/t...ngine-project/










  2. #2
    Join Date
    Dec 2007
    Location
    Sydney
    Posts
    91

    Default

    I had a quick look at your project and if your doing this stuff at 31 I hope I live long enough to see you make something of your own design.
    Im a patternmaker by trade but a way out of touch with modern foundry practise.
    We have used an iron foundry here in Sydney that has a computer programme for runners etc.
    I have an English book somewhere by the mob who did Aluminium casting for formula one stuff, ill have a search for it, There was some good stuff in there.
    Just blown away by your work.
    I know some dudes who’ll make the body for you here in Oz. Motorretro.
    I saw a few Bugattis at this years Mila Miglia in Mantua whilst on hols in Italy.
    H.
    Jimcracks for the rich and/or wealthy. (aka GKB '88)

  3. #3
    Join Date
    Aug 2019
    Location
    Huntington Beach CA
    Age
    31
    Posts
    2

    Default

    Quote Originally Posted by clear out View Post
    I had a quick look at your project and if your doing this stuff at 31 I hope I live long enough to see you make something of your own design.
    Im a patternmaker by trade but a way out of touch with modern foundry practise.
    We have used an iron foundry here in Sydney that has a computer programme for runners etc.
    I have an English book somewhere by the mob who did Aluminium casting for formula one stuff, ill have a search for it, There was some good stuff in there.
    Just blown away by your work.
    I know some dudes who’ll make the body for you here in Oz. Motorretro.
    I saw a few Bugattis at this years Mila Miglia in Mantua whilst on hols in Italy.
    H.

    Cheers.

    How would you have done it in the 'good ol' days'?
    I dont know modern foundry practice, I dont actually know any foundry practice for that matter! Its been a combination of Google images, 1 book, intuition and guessing.

  4. #4
    Join Date
    Dec 2007
    Location
    Sydney
    Posts
    91

    Default Casting practice.

    This is the book.
    I think something like this and a chat to foundry people over there in the states would be more use than any memories I have from 40 plus years ago.
    The US were the ones to pioneer the thin wall V8s in cast iron which obsoleted the Oldsmobile,Buick Al engines that Rover and Repco played with.
    They also developed the lost foam, non binder sand moulding which was vacuum compressed and bottom fed.
    Himage.jpgimage.jpgimage.jpg
    Last edited by clear out; 9th Aug 2019 at 09:38 PM. Reason: Typo
    Jimcracks for the rich and/or wealthy. (aka GKB '88)

  5. #5
    Join Date
    Mar 2012
    Location
    south australia
    Posts
    14

    Default

    Quote Originally Posted by clear out View Post
    This is the book.
    I think something like this and a chat to foundry people over there in the states would be more use than any memories I have from 40 plus years ago.
    The US were the ones to pioneer the thin wall V8s in cast iron which obsoleted the Oldsmobile,Buick Al engines that Rover and Repco played with.
    They also developed the lost foam, non binder sand moulding which was vacuum compressed and bottom fed.
    Himage.jpgimage.jpgimage.jpg
    Excellent book, best one I ever got on the subject about runners & risers.

Similar Threads

  1. Steel plate orientation when cutting on a bandsaw.
    By Jim Ferrous in forum METALWORK GENERAL
    Replies: 15
    Last Post: 8th Nov 2013, 08:29 AM
  2. Forum Runner
    By bdar in forum FORUMS INFO, HELP, DISCUSSION & FEEDBACK
    Replies: 4
    Last Post: 31st Dec 2011, 09:44 AM
  3. Hercus Patterns
    By 4-6-4 in forum THE HERCUS AREA
    Replies: 1
    Last Post: 21st Mar 2011, 06:36 PM
  4. Argon Regulator flowmeter - orientation.
    By obrien43 in forum WELDING
    Replies: 2
    Last Post: 28th Feb 2010, 07:32 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •