[SATLUG] RepRap 3D printing proposed meeting in Katy Texas on
Sunday December 30 (football, pizza, Linux)
toddwbucy at grandecom.net
Thu Dec 27 19:14:52 CST 2007
I just went through the RepRap website...Wow! self replicating machines!
P.K. Dick must be rolling in his grave. I love it.
On Thu, 2007-12-27 at 15:37 -0800, Stephen Gutknecht (RoundSparrow)
> Hi Ernest (and group),
> I think I tend to be a little more balanced and practical that most
> open source evangelist, so expect my response to reflect that. I only
> got interested in RepRap about two months ago but wanted to speed up
> my learning... So, I went to NYC and hung out with Zach Smith for 10
> days (about 30 hours of that was RepRap hang out time in total, we
> both work full time on other stuff).
> Here is my personal answer:
> -- The project is very alive as Open Source goes. There is lots of
> activity, it has been building up over 3 years, it has all the
> earmarks of an open source project that will continue to thrive.
> -- the project is entirely open, have seen no signs of anyone trying
> to keep things back, not publish their work, etc. This is a true
> international project that was born out of university and into open
> -- The technology itself has a high level of interest, but not a lot
> of people have experience with it in action. At least not in the
> under $2500 price range [there are commercial devices that are much
> more expensive]. Still a lot of learning on exactly what kind of
> plastics (and other materials) are practical to extrude and how fast
> we can extrude them (the machine is rather slow at this point in
> -- Cost of building the hardware side was probably around $750 on
> November 1, but by January 15 I think it will be more like $350. The
> group has been doing bulk purchases of stepper motors, coming up with
> new designs, etc.
> -- The software for printing things is pretty much complete, but
> really only a handful of objects have been created to print, and maybe
> only a dozen machines assembled. I'd like to see more people
> creating objects, using 3D modeling skills. Right now we have sample
> objects like shot glasses and a flask and parts to build the RepRap
> >From a practical construction perspective, two more points:
> -- The Darwin 1.0 design is rather parts intensive and requires a
> lot of plastic printed parts that present a chicken/egg problem. The
> community is rather excited about a new CNC design that is being
> adapted to the RepRap electronics (and expanded from 2D to 3D). In
> simple terms, there are two competing designs to consider when
> starting on construction (Darwin or McWire CNC).
> -- The electronics side there is work on a next-generation platform
> ongoing. So, you have to decide if you want to go with the
> "established" electronics or go with the newer (and in many ways
> simpler + better) design that is not yet official (Arduino).
> In other words, it is an exciting time to get involved! I think in
> the next 3 months the community will go from having maybe 10 working
> machines worldwide to having 100 or more. I personally witness dozens
> of orders being shipped out for the electronic circuit boards, etc.
> Hope that answers your question.
> Stephen Gutknecht
> Canyon Lake, TX
> On Dec 27, 2007 3:07 PM, Ernest De Leon <edeleonjr at gmail.com> wrote:
> > I remember hearing about this a while back, but it kind of went under the
> > radar. How is the project coming along now?
> > Ernest
> > On Dec 27, 2007 2:58 PM, Stephen Gutknecht (RoundSparrow) <
> > Stephen at roundsparrow.com> wrote:
> > > Hi, just joined the mailing list. My name is Stephen Gutknecht, I use
> > > Linux for business and personal and am actively working to build an
> > > open source RepRap 3D printer (extrude 3D objects with plastic and
> > > other materials).
> > >
> > > So far, I haven't found anyone else in San Antonio building a RepRap,
> > > but I there are at least a couple of people in Houston. So I'm
> > > proposing a get together this Sunday, brining my RepRap stuff with me.
> > >
> > > I know Katy is kind of far, but I'm driving all the way from Canyon
> > > Lake... and can carpool some others if you want to meet/park
> > > somewhere..
> > >
> > > Anyway, I just spent 10 days in Brooklyn hanging out with Zach of the
> > > RepRap project and am pretty close to having my RepRap Darwin
> > > assembled and working.
> > >
> > > This is an entirely open source 3D plastic printer. Info:
> > > http://www.reprap.org/
> > >
> > > Discussion and details on the proposed meeting are posted on this thread:
> > > http://forums.reprap.org/read.php?26,7263
> > >
> > > Meeting is NOT YET FINAL, but the more people who agree to the
> > > time/date the better. Both Houston and Dallas play football on
> > > Sunday, and we are meeting at a pizza place. I'm buying Pizza.
> > >
> > > Stephen Gutknecht
> > > Canyon Lake, TX
> > > --
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