My additional comments are preceeded by &&&&&&&&& below:
At 06:18 PM 6/10/99 +0100, you wrote:
>Tom,
>Accuracy ?
&&&&&&&&&& We quote twice investment casting tolerances which are +/- 0.005
inch/inch, but parts often are better than that.
>Do you use the precision cast molds for plastic injection molding as well ?
&&&&&&&&&& We've cast about fifty molds for others for plastic injection
molding, and a dozen experimental ones for our own use for waxing.
>
>Juergen
>
>> -----Original Message-----
>> From: Tom Richards [SMTP:tomr@aicasting.com]
>> Sent: Thursday, June 10, 1999 7:54 PM
>> To: Henri Koukka
>> Cc: rp-ml@bart.lpt.fi
>> Subject: Re: Metal rp, succes stories needed...
>>
>> Our Indirect RP Process is:
>>
>> receive .stl of part/
>> create .stl's of mold cavity parts/
>> RP patterns of mold parts/
>> precision cast the mold parts/
>> fitup mold/
>> injection mold patterns/
>> mold and precision cast yielding finished precision cast parts.
>>
>> It seems complicated, but its really quite straight-forward.
>>
>>
>> At 10:49 AM 6/10/99 +0300, you wrote:
>> >Dear all,
>> >
>> >I'd like to know different ways to get metal parts/moulds using rp
>> (direct
>> >or indirect). Process chains how parts were done would help me lot. Here
>> >follows exampeles...
>> >
>> >Wax pattern (rp) -> investment casting
>> >Direct Aim mould -> injection moulding of waxes -> investment casting
>> >Sand cores and cavities (SLS, EOSINT S) -> sand casting
>> >SLS of metals
>> >Direct Metal Laser Sintering (DMLS)
>> >etc.
>> >
>> >These were quite familiar examples. Let me know your wildest ideas how to
>> >get metal parts. If you have any succes stories about your projects on
>> the
>> >web let me know...
>> >
>> >Cheers
>> >Henri
>> >
>> >PS. The (ultimate) list about rp-methods I've been gathering can be found
>> >on http://ltk.hut.fi/~koukka/RP/rptree.html . Thanks for all those
>> friends
>> >(especially Elaine, Marshall, Juergen, Ray, Dave, Wei Feng...) who helped
>> >me when I created it. If you feel there is some absencies on the list
>> tell
>> >it to the mouse at the end of the page.
>> >-------------------------------------------------------------------
>> >
>> >Henri Koukka
>> >Researcher Tel: +358-3-5250 214
>> >Helsinki University of Techn. Mobile: +358-40-579
>> 5757
>> >Lahti Centre Fax: +358-3-5250 204
>> >Saimaankatu 11 Email:
>> koukka@ltk.hut.fi
>> >FIN - 15140 LAHTI
>> >FINLAND
>> >
>> >-------------------------------------------------------------------
>> >
>> >For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>> >
>> >
>>
>>
>> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
>
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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