RE: Review of direct manufacturing threads

Date: Mon Feb 21 2000 - 15:22:54 EET


Very interesting and a great job gathering and posting the page. Despite
all of the examples the you have found I believe that my comments are valid.
As much as I love the RP industry I could never with a clear conches sell
the processes as "Rapid Manufacturing" or "Direct Manufacturing". There are
still way too many stumbling blocks to overcome: accuracy, consistency,
speed, repeatability, limits on feature size....Just to name a few!

Karl Denton

        -----Original Message-----
        From: Marshall Burns []
        Sent: Sunday, February 20, 2000 6:13 AM
        Cc: Sean M Gladieux; Marshall Burns; Elaine Hunt; Prof. P. M.
Dickens; Nick Osborn; Ben Halford; Ronald Jones; Allan J Lightman; Sean
(S.B.) O'Reilly;;; Michael
Vincek; Roger L Spielman; Charles Overy; RP Solutions; Brock Hinzmann; Greg
Pettengill; Andy Christensen; Carsten Freyer; Dan Eifert; Ron Clemons;
SiderWhite; Robert Welther; Tom Richards; Nuno Reis;; bo
yang me stnt
        Subject: Review of direct manufacturing threads

        Dear RP-world,

            One of the hottest topics of discussion on the RP-ML in 1999 was
the use
        of fabbers ("rapid prototyping") for direct manufacturing, not just
        prototypes. The two major threads on this subject have been
        together and posted on at

            In August 1999, an engineering student by the name of Sean
Gladieux made
        his first posting to the RP-ML, not knowing what a debate his
inquiry was
        about to launch. Sean described a project in which he was planning
        compare the cost of making a machine part directly in a fabber
versus making
        it by "traditional" means. He asked the list if anyone else had ever
        into this before. A number of people responded who had indeed spent
a good
        deal of time either thinking about or actually doing direct
manufacturing by

            Then, in November, veteran RP-ML correspondent Elaine Hunt
posted an
        inquiry asking who on the list had produced "a model that was the
        product" and what kind of results they got. Again, there were a good
        of informative responses.

            Please take a look at this new page. It makes for some
        reading. If people want to make any additional comments on those
        I'll add them to the page.

            (People on the "Cc" line of this message are the people who
        in these threads. Please let me know if you see any errors.)

        Best regards,
        Marshall Burns
        President, Ennex Corporation
        Los Angeles, USA, (310) 397-1314

For more information about the rp-ml, see

This archive was generated by hypermail 2.1.2 : Tue Jun 05 2001 - 23:02:52 EEST