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42468Re: [hobbicast] ingate / outgate

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  • Nelson Collar
    Jan 5, 2013
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      2.15 has a real nice curved runner. There is no set rule how they run just that the metal flows and does not freeze.
      Nelson Collar

      From: Steven DePhillips <stevendeph@...>
      To: "hobbicast@yahoogroups.com" <hobbicast@yahoogroups.com>
      Sent: Saturday, January 5, 2013 10:15 AM
      Subject: Re: [hobbicast] ingate / outgate

      Excellent manual.  Much of it was over my head but the part about the bottle riser makes a lot of sense i am going to try it to solve a shrinkage problem i am having. 

      Thanks for sharing!
      Steve DePhillips

      From: James Bishop bishopaj@...>
      To: hobbicast@yahoogroups.com
      Sent: Friday, January 4, 2013 10:25 PM
      Subject: Re: [hobbicast] ingate / outgate

      I find this PDF manual a pretty good read:


      It applies to iron casting but I assume its generally applicable to
      aluminium too.

      One point they make is that runners should be straight, not curved.


      On Thu, Jan 3, 2013 at 6:09 AM, Sage McGirk freeflysage@...> wrote:

      > **
      > Happy new year everyone! I've been hobbicasting for about 6/7 months
      > now, and I'm looking for any sort of rule of thumb for the size of the
      > ingate/outgate holes. I'm starting to cast some bigger objects (>
      > 3-4") that tend to be fairly thin. I've learned to POUR faster to
      > ensure nothing cools prematurely but find some objects still dont
      > quite finish. I'm guessing larger ingates are the trick. I'm also
      > about to embark on some gear shaped objects, and wondering how ,if
      > needed, to do multiple sprue holes as I've seen with lost foam, but
      > will be using wood as objects now. Any advice, video's, pictures
      > would be appreciated
      > Thanks
      > /sm

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