[gingery_machines] Re: starting with the *charcoal foundry*

 

[quote=Alan Millar]If you don't know what cutting off a sprue means,
then you don't know what asprue is. If you are pouring cavity in a hole,
you will have a sprue. Thesprue is the metal that fills up that pouring
hole.[/quote]

http://www.lethbridgeironworks.com/TipsPages/TipThree8.gif

http://www.sandcasting.bizhosting.com/

I think that is a sprue...? But I guess I am misunderstanding you
because I will not be using metal at first. I will be using clay.

http://upload.wikimedia.org/wikipedia/commons/thumb/f/fb/BronzeSprueRise\
rsSideView.jpg/300px-BronzeSprueRisersSideView.jpg

I think this picture just cleared up my confusion. So, you are saying
that the sprue will solidify WITH the mold and will have to be removed
after the entire mold is finished and cooled? Is that correct? If so,
then in my case I will have to remove the clay from the metal mold that
I have made.

[quote=Alan Millar] If you haveexcluded saws from your experiment, then
a chisel will work. [/quote]

I haven't excluded saws or chisels from my work since both of them
can be made from scratch.

http://www.primitiveways.com/stone_saw.html

http://www.primitiveways.com/scapular_saw.html

I don't have a link for a primitive chisel because I think that tool
shouldn't be that difficult to make. :)

[quote=Alan Millar] You simply won't find aluminum to melt, unless you
areworking with some sort of artifacts of 20th century civilization. So
if youhave aluminum, you have other modern artifacts also. You simply
can't finda situation in the world where you would have aluminum but not
steel. [/quote]

Yes, you are correct here. I would be working with copper (malachite,
cuprite, etc.) and iron (pyrite) first. Then I would work my way up to
aluminum (bauxite) progressively. Aluminum seems to be a slightly
complex metal to process from the raw mineral ore bauxite. I am
documenting my progress slowly but I only want to focus on the charcoal
foundry for the time being here on this forum. I tend to get confused
quickly if I don't stay focused.

[quote=Alan Millar] I would recommend just jumping in and *doing* some
melting, beforespeculating too much farther. Even if you just melt
something and then pouron the ground, It will make all the world of
difference in yourunderstanding of the whole thing. [/quote]

I would like to do this but there are zero foundries on O'ahu. The
closest foundry to here would be California.

@Jarod – Thank you for sharing that picture. I will be absolutely
sure to don a NASA spacesuit type of protective clothing every time I
deal with molten metal. I don't want any burns anywhere.

@Wonk – Is this what you are referring to:

http://www.youtube.com/watch?v=HU7Lrd2HxaA&p=C0B7429219716B91&playnext=1\
&index=14

I don't see any other "viking method" videos... Hmm..

Currently, I am doing an in-depth write up of building the foundry.
(like you advised, Alan :) ) I will have that ready hopefully tomorrow
or tonight if I am able to translate it all.

[Non-text portions of this message have been removed]

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