Re: Desktop Rapid Prototype

Randolph,
There is also zcorp

http://www.zcorp.com

I have a sample from them - I saw them do a mini V-8 block at Eastec this year

Charlie

At 10:06 AM 7/18/99 -0400, you wrote:

>From: Randolph Lee <boss@...>
>
>As far as I know there Are only a few companies doing Desktop Rapid Prototype
>
>I saw one of them in action a few years ago At EasTec...
>http://www.sanders-prototype.com/main.html
>It does work like (and is about the same size as) an inkjet
>printer... putting down 2 types of plastic (for the part itself and
>for the undercut support... that latter can be dissolved away) after
>each pass the main trick is they run a planer blade over the surface
>Between each pass to create an exact thickness for each layer... they
>were selling rebuilt Modelmaker I units for about $2000 last
>winter... might be worth contacting them to see if they had any
>left...
>
>
>the other Desktop unit (other than the huge laminated Laser cut paper
>units and smaller Laser Liquid units that I think would be way out of
>sight for a HSM to try to build) that I saw on demo was this one (and
>it cost twice as much as the Sanders unit and did not seem much
>better (I think it could a larger model) but this was a few years
>ago)
>http://www.stratasys.com/genisys.html
>
>There is also another 3D printer-like method out there, developed by
>people From MIT (I *think*).
>It uses essentially a bubble jet head to shoot binder into a polymer
>powder (or some polymer-ceramic) mix. The binder creates a green form
>in the powder bed which can then be baked and post-processed like any
>normal powder part. but I can't recall the name or find a URL for
>it...
>
>and of course there are sintered metal units developed by Sandia
>labs... but I think it will be cold day in hell before we see that
>tech in a home shop!
>http://mfgshop.sandia.gov/1400_ext/1400_ext_RapidPrototype.htm
>Note that that this link does not mention the Sintered laser with
>Metal dust method I could not find the link for that one... perhaps
>it's now a commercial product? the link does have a nice overview of
>the different mainstream types of rapid prototyping though
>
>>From: Don Hughes <pencad@...>
>>
>>Now, if we wanted to let homebrewing projects really get sophisticated,
>>building an STL machine would be it. That is one project that I would
>>definitely be involved in. A couple of years back I did some CAD work
>>for a film studio that used STL to make the props. It really wouldn't be
>>too hard to do, but the expense would be in the laser to solidify the
>>STL liquid medium.
>
>Randolph Lee boss@...
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