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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Casting question
I'm thinking about getting some parts made and I really don't know enough about the casting process to ask
intelegent questions. I've seen companies that will take a 3D solid model -do magic and turn these into a wax form for lost wax casting. I have access to a 3D printer that does PVC. Can you use PVC directly as the "Wax" in a lost wax system? What kind of wax is used for lost wax ? Can I cast my own wax in a PVC Mold to save some $$$? Or will it melt/deform the PVC model? If I have created wax "masters" where can I go to have some stainless castings made? what stainless materials are readily availible for casting? On an object that is 14" high 7" in diameter and is basically a hollow tube how thin can I make the walls? Is the limit the structural strength of the wax or the accuracy of the casting process? What would 3 or 4 protoypes cost me? Assume a trumpet shaped tube 14" long and 7" max diameter, about 10 lbs of finished material. Does the very act of asking these questions indicate I'm way out of my league and should just send the 3D model out to have it quoted. Paul |
#3
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Casting question
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#4
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Casting question
If these things resemble "tubes", why not just have them fabed up by
somebody who can roll SS sheet? Seams can be welded. That way you can have walls that are pretty thin; think 40 thou or less and up to 1/2" or more. People who work "sheet metal" can certainly make your "trumpet", too. Pete Stanaitis --------------------- wrote: I'm thinking about getting some parts made and I really don't know enough about the casting process to ask intelegent questions. I've seen companies that will take a 3D solid model -do magic and turn these into a wax form for lost wax casting. I have access to a 3D printer that does PVC. Can you use PVC directly as the "Wax" in a lost wax system? What kind of wax is used for lost wax ? Can I cast my own wax in a PVC Mold to save some $$$? Or will it melt/deform the PVC model? If I have created wax "masters" where can I go to have some stainless castings made? what stainless materials are readily availible for casting? On an object that is 14" high 7" in diameter and is basically a hollow tube how thin can I make the walls? Is the limit the structural strength of the wax or the accuracy of the casting process? What would 3 or 4 protoypes cost me? Assume a trumpet shaped tube 14" long and 7" max diameter, about 10 lbs of finished material. Does the very act of asking these questions indicate I'm way out of my league and should just send the 3D model out to have it quoted. Paul |
#5
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Casting question
On Tue, 20 Jan 2009 16:41:32 -0800, the infamous
scrawled the following: I'm thinking about getting some parts made and I really don't know enough about the casting process to ask intelegent questions. Drop by your local library and look for books on the subject. I was curious and found Tuck Langland's book _From Clay to Bronze_ enlightening. http://tinyurl.com/8yptyo -- Even with the best of maps and instruments, we can never fully chart our journeys. -- Gail Pool |
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