From: Steven Adler \( A3DM \) (adler@a3dm.com)
Date: Thu Feb 06 2003 - 05:55:59 EET
Doesn't Stratasys extrude a PVC for this application....?
Steven Adler
Automated 3D Modeling, Inc
www.a3dm.com
603.433.4369
>>>>>-----Original Message-----
>>>>>From: owner-rp-ml@rapid.lpt.fi
>>>>>[mailto:owner-rp-ml@rapid.lpt.fi] On Behalf Of Karsten
>>>>>Sent: Wednesday, February 05, 2003 9:23 PM
>>>>>To: Brad Fulghum; rp-ml@rapid.lpt.fi
>>>>>Subject: Re: Casting / Prototype Materials for Nasty Environment
>>>>>
>>>>>
>>>>>I don't know of any cast urethane that can handle that
>>>>>kind of extreme
>>>>>testing.
>>>>>You might try looking into rapid tooling. They can make a
>>>>>mold using Rapid
>>>>>Prototyping technology and then shoot production materials
>>>>>into it for a
>>>>>short run count.
>>>>>Hopefully someone can help in this field.
>>>>>Good luck
>>>>>Karsten
>>>>>
>>>>>----- Original Message -----
>>>>>From: "Brad Fulghum" <brad@paradigm-eng.com>
>>>>>To: <rp-ml@rapid.lpt.fi>
>>>>>Sent: Wednesday, February 05, 2003 1:07 PM
>>>>>Subject: Casting / Prototype Materials for Nasty Environment
>>>>>
>>>>>
>>>>>> Greetings All!
>>>>>>
>>>>>> We are developing a product for a client which has some
>>>>>rather severe
>>>>>> mechanical test requirements. This is a hand held test
>>>>>instrument, and
>>>>>> the 2 part housing must pass the tests for plastic
>>>>>materials as defined
>>>>>> for an "Intrinsically Safe" package (potentially
>>>>>explosive environment).
>>>>>> We'd like to do the housing prototypes in a cast
>>>>>urethane or similar,
>>>>>> but have had no success finding a material which will
>>>>>pass the falling
>>>>>> dart test ( 2.2 lb steel weight with 1" dia. sphere at
>>>>>the impact point
>>>>>> from about 28 inches). I won't even get into the other
>>>>>requirements.
>>>>>>
>>>>>> Anyone run up against this in the past? Any suggestions would be
>>>>>> appreciated.
>>>>>>
>>>>>> Thanks....
>>>>>>
>>>>>> Brad Fulghum
>>>>>> Paradigm Engineering, Inc.
>>>>>>
>>>>>> Ph. 480.446.0900
>>>>>> Web Site - http://www.paradigm-eng.com
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
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