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Casting Small Parts

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Old 06-15-2018, 06:40:09 PM
overdriver overdriver is offline
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Location: Ithaca, New Yyork (Tompkins County)
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Default Casting Small Parts

I have a question

I have some engines that need parts cast

some easys , a few fhs and some misc. things

both in cast iron and aluminum

I plan on give the place my parts ,to make cores

anyone have experience doing this ?

and who did you use
and approx. cost

I am casting 4 carbs

some kick starter pedals

and other things I cannot find
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Old 06-19-2018, 10:45:54 PM
mihit mihit is offline
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Default Re: Casting Small Parts

I don't know about farming out the work, but do aluminium casting at home for odd parts that can't be found, or when it's easier than driving to town to buy.

In casting: "cores" create hollows in the piece, ie, you would use 6 cores to form a cylinder block.

The part you're replicating/making needs a pattern.

You can use original parts as patterns, depending on sizes and dimensional tolerance, metal shrinks as it cools in the order of 1/8" per foot depending on the alloy, so if you need high accuracy you will need to make patterns oversized, and patterns can be made from anything, plywood, bondo, clay etc.
There are other considerations, draft etc, depending on the method used to cast (investment, green sand, lost wax etc)

Generally I would think you need to talk to a pattern maker at your foundry house who will put you right with what he needs from you.
As to the cost, that will depend on time spent and materials, if you have old scrap metal they may be able to melt that for ya, but they may not be happy putting it in their furnace and prefer you buy their stock.

You could try looking up hobby casters in your area, Alloy Avenue is a pretty good forum, and you might find someone willing to work for beer.
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Old 06-20-2018, 10:25:07 PM
Nathan K. Nathan K. is offline
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Default Re: Casting Small Parts

One thing not mentioned is one has to be careful just who you give your parts to if you want them back!.
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