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Type: Posts; User: cactusdreams

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  1. Replies
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    My understanding is that delft clay used for...

    My understanding is that delft clay used for jewelry is similar to petrobond but a finer grain sand, and expensive. I use SAE 30 non-detergent motor oil and rubbing alcohol to rejuvenate my petrobond...
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    Wow! Amazing what old tech can do and got some...

    Wow! Amazing what old tech can do and got some good ideas form it. Really liked how they made the core by scraping off a complete positive. Would like to see the steps leading up to the start of the...
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    Looks really nice! Was also impressed by the...

    Looks really nice! Was also impressed by the light recessed in the horizontal part of the post.
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    Hmm, the vids wouldn't play for me. Anyway, yeah,...

    Hmm, the vids wouldn't play for me. Anyway, yeah, I look at that thing and think about getting back to it. Adding a tail stock and tool holder. What I mostly figured was it can work at slow speed...
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    Besides pics of the inside, how big, how much you...

    Besides pics of the inside, how big, how much you got in it?
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    Wow! Just did the Firefox fix and worked like a...

    Wow! Just did the Firefox fix and worked like a charm. So PB is still hoarding the photos somewhere. Doesn't seem to work on videos though.
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    My experience is hollow sprues tend to collapse,...

    My experience is hollow sprues tend to collapse, choking off the pour. But I do use white foam for sprues and runners to lessen the cooling and help the flow.
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    I've had good luck with exhaust pipe paint....

    I've had good luck with exhaust pipe paint. Though the lid takes a much worse beating than the body of the furnace.
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    Foundry Gear Out West

    Just saw these ads of some foundry near me either shutting down or unloading. I think its H & M Foundry but not sure. If I had the extra space and keezash I'd go take a look at those squeeze jolt...
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    A couple months ago I was called in on a Friday...

    A couple months ago I was called in on a Friday but wasn't interviewed so had the weekend to do some homework before returning on Monday. Turned out the judge was Dist. Atty. Shellie Samuels,...
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    I have a 1/2hp on my muller of moderate size and...

    I have a 1/2hp on my muller of moderate size and its been running like a champ for several years now.

    http://www.alloyavenue.com/vb/showthread.php?10447-It-s-Muller-Time-yes-another-one
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    Must admit I have dallied also. It came down to...

    Must admit I have dallied also. It came down to the photo issue for me. Even though I did redo two of my threads here by joining imgur, it was a PITA and I'm still dependent on an outside source that...
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    [QUOTE=FishbonzWVa;206554]It's that time of year...

    [QUOTE=FishbonzWVa;206554]It's that time of year again.

    Yesssssssssss it isssssss!

    http://www.alloyavenue.com/vb/attachment.php?attachmentid=17457&d=1446620999
  14. Double corrugated cardboard here. Sand sounds...

    Double corrugated cardboard here. Sand sounds good too.
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    The bulb is only drying it out so you don't have...

    The bulb is only drying it out so you don't have problems when you cure it under fire. The high temp curing makes the refractory change state to a ceramic. But this is a good time to grind and sand...
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    Good stuff! That high rise particle board flask...

    Good stuff! That high rise particle board flask looks familiar, even the burns.
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    Looks amazing! Like a scram-jet bike.

    Looks amazing! Like a scram-jet bike.
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    Aluminum roof flashing lined with plastic tarp...

    Aluminum roof flashing lined with plastic tarp worked great for me. Just be sure to put a brace in the bottom of the inner tube so the pressure of the castable doesn't make it collapse inward. I used...
  19. Fair I'd say. Leaves a small seam in the casting....

    Fair I'd say. Leaves a small seam in the casting. You can play with wax and mud to deal with it or grind it off.
  20. Yes, a number of us have. It's a very good...

    Yes, a number of us have. It's a very good adhesive for styrene foam on flat surfaces. Doesn't dissolve the foam like other types. Needs a little cure time. It doesn't hot wire very clean, but no...
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    My main point was to put it on its side and feed...

    My main point was to put it on its side and feed it from multiple gates from an overhead white foam runner and sprue like in the video. The foam limits was just spit balling like I said. I've had...
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    How about this re. the block? On my unicorns and...

    How about this re. the block? On my unicorns and stegosaurus (pics not restored yet) I use white foam runners from above to feed it from several points. Here's a video of the big boys doing something...
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    So many variables at play its hard to tell. Just...

    So many variables at play its hard to tell. Just spit ballin' now. I thought you might be hitting the limits of pink foam which is denser than the white. But the bottom looks like it filled. My next...
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    My pattern was a small ships bell from a boat I...

    My pattern was a small ships bell from a boat I used to have. Had to keep some sort of memento. It doesn't seem to have the normal bell profile of thick at the top, tapering to the bottom then a...
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    Thanks again all. That's something else this site...

    Thanks again all. That's something else this site is good for that would be a shame to loose, the appreciation of your peers. Sometimes friends and family don't get all that goes into this. Picked up...
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