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Thread: The Bucket Foundry

  1. #4516
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    Quote Originally Posted by husaberg View Post
    I remember my old man having a very tidy version of one of these............
    Ah, that's the one! - not the truck! - I can't remember having seen this model - we did have the van version (but by another name) - I think it was called the Thames 800 - not the Thames Trader and I believe it had the later (Mk 2 ) Consul 375 engine - 1800cc? - so that clears that up! - I guess that one you posted is what Neil was talking about.
    Strokers Galore!

  2. #4517
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    12th March 2010 - 16:56
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    I belive you are right Will, it was a Thames 800
    Same colour too but mine had a wee crane on the back, all the better to hook serious shit out of the tip with.

  3. #4518
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    Uniflow water core, a bit trickier than I though. Has to be made up of three parts, yes they can be the same, one mold fits all. The difficult bit is how to assemble it all in situ.

  4. #4519
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    Quote Originally Posted by Flettner View Post
    Uniflow water core, a bit trickier than I though. Has to be made up of three parts, yes they can be the same, one mold fits all. The difficult bit is how to assemble it all in situ.
    Interesting problem I guess but I can't visualize it without a picture (not having actually studied the making of the real thing before!)
    Strokers Galore!

  5. #4520
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    Shell sand molding machine coming together.
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  6. #4521
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    Quote Originally Posted by Flettner View Post
    Shell sand molding machine coming together.
    Neil ii have been coinfused for a while so its a mixer for temp and air/co2 set binders?
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  7. #4522
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    Quote Originally Posted by Flettner View Post
    Shell sand molding machine coming together.
    Neil, looks to me more like a 4th axis for your vertical.
    "Success is the ability to go from one failure to another with no loss of enthusiasm.

  8. #4523
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    Quote Originally Posted by husaberg View Post
    Neil ii have been coinfused for a while so its a mixer for temp and air/co2 set binders?
    There are still bits missing but this is the
    main 'skeleton' of the machine. Metal dies get bolted between the two patterns, hydraulic cylinder pushes the heated die together. There is a sand box, not made yet, that moves up and seals onto the dies. The whole machine turns 180 degrees so gravity can pull the sand into the heated metal dies, there is usually an air assist to help blast the sand into the far reaches of the dies. After a short time the patterns return so the sand box is underneath again, sand box pulls away, dies stay cloesd for a time to bake the sand hard then the platterns / dies open to eject a nicely molded hard sand core. Repeat, collect the money.

  9. #4524
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    The sand is specialy pre coated with a bonding material that sticks the grains together at 200 degrees C.
    At over 400 degrees the bond disintegrates.
    A very usefull sand for production casting.

  10. #4525
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    Quote Originally Posted by Flettner View Post
    The sand is specialy pre coated with a bonding material that sticks the grains together at 200 degrees C.
    At over 400 degrees the bond disintegrates.
    A very usefull sand for production casting.
    Looking good! - now well beyond the little backyard foundry any of the rest of us would aim for (except Ken of course) - and all prepared for future work!
    Good, especially now with NZ trying to get back on its feet after the Covid thing (the government hopefully is at least looking to help all the small business here??)
    Having very few local foundries left here, it could be useful in the agricultural area you live in! (ie if you are interested in jobbing work of course).
    ..... Those platens look like they are designed to see you out and well beyond!
    Strokers Galore!

  11. #4526
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    The Uniflow water core box begins.
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  12. #4527
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    Quote Originally Posted by Flettner View Post
    The Uniflow water core box begins.
    Will you be casting these with your new gear, or is that destined for use in production runs of other stuff only?
    Strokers Galore!

  13. #4528
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    Nah, old way.
    But when I get back into making these I'll need it.
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  14. #4529
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    I was on the brink of making a decision about moving overseas with my son and his family, but Covid fixed that! and has brought it home to me that I'm a Kiwi (been here 54 years) now and do really want to stay in NZ!

    So I am toying with the idea of building another foundry (probably a bit smaller than before) and maybe try 3D printed patterns as well - I have a couple of little 3D printers which are tired of turning out plastic toys for kids to discard or destroy!
    There is some material lying around from the relatively successful, (but short) previous attempt - so I'll check through what I've got and see what I can build from it all.

    One thing about a home foundry is the fact that you can build it however the hell you like - all that is needed is an ability to scrounge and use whatever is on hand - a little resourcefulness goes a long way of course and maybe just little commonsense in the mix as well (safety being paramount) - so we'll see what transpires!
    Strokers Galore!

  15. #4530
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    Sounds Positive, Will.
    Post any progress, I shall be watching here eagerly.

    You might have seen this guy on Youtube before? (If it's on here, somewhere, Husa will know)

    He does a quite amusing commentary! But it's also the simplest, cheapest, effective backyard furnace I've seen.
    In the next video, he cranks it up to 300kW and melts copper and steel.

    https://www.youtube.com/watch?v=WbYAYobyB_M

    Cheers, Daryl.

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