RE: [rp-ml] Stratasys models for investment casting

From: John Eric Voltin <jevoltin_at_agile-technology.com>
Date: Fri Feb 08 2008 - 18:01:27 EET

I wasn't thinking of using polycarbonate for pattern making. I was
thinking in more general terms for prototyping, etc.

 - John

John Eric Voltin
Mechanical Engineer
Agile Technology
512-633-0394

> Why would you want to use a polycarbonate? For casting you would like to
> have lower molecular weight materials (like wax) that burn out easier and
> are less prone to shell cracking. Our local foundry runs Castform
> alongside their normal wax burnouts with no problems.
>
>
>
> Tim Gornet Manager, RP Operations
> email: tim.gornet@louisville.edu
> Rapid Prototyping Center
> Vogt Bldg. Rm 101, University of Louisville, Louisville, KY 40292
> Phone: (502)852-0714 FAX: (502)852-8890
> http://www.louisville.edu/speed/rpc/
>
>>>> "John Eric Voltin" <jevoltin@agile-technology.com> 2/7/2008 10:53 PM
>>>> >>>
> Are you thinking of Castform, which is mostly polystyrene prior to the
> addition of wax? I'm not familiar with any SLS material based upon
> polycarbonate, but such a material would be very useful.
>
> - John
>
> John Eric Voltin
> Mechanical Engineer
> Agile Technology
> 512-633-0394
>
>> While I don't think the ABS material would work well at all...Doesn't
>> Sratasys offer a polycarbonate material for the FDM process? I'm not in
>> the casting business, but I know we used to do a lot of SLS patterns out
>> of polycarbonate.
>>
>> Tracy Taylor
>> Pratt & Whitney Rocketdyne, Inc.
>>
Received on Fri Feb 08 16:29:41 2008

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