On Mon, Jun 13, 2011 at 4:10 PM, Colin K <[email protected]> wrote: > > On Jun 12, 2011, at 8:23 PM, Mike Payson <[email protected]> wrote: > > > That said, if you want to build one, I _strongly_ recommend you start > with a > > standard Prusa Mendel (http://reprap.org/wiki/Prusa) and only start > > experimenting after you have got that up and running. The current design > has > > it's limitations, but they are relatively minor and the current design is > > used by so many people in the community that it is easy to get support > for > > it. FWIW, there are parts that are problematic, but I would say that the > > motor mounts are not among them. > > Why do you say prusa over Mendel? The Mendel seems like a better design... > Real bearings and all that. It seemed to me like most of the complexity is > in the firmware and software so why not go for the mechanics with the fewest > compromises? >
There are a number of reasons why the Prusa is a better machine. According to most people, the Prusa is superior in virtually every way to the original Mendel (AKA Sells Mendel). The Mendel is a nice machine, but it is quite complex and hard to calibrate. Once you have it very well tuned, it can turn out prints that are great, but probably 9 out of 10 people never get it quite right. The Prusa is dead simple. With the exception of just one or two key steps during the initial assembly, it is almost calibration free. The printed bushings are a turn off for many people (And I was extremely dismissive of them when I first heard about them), but they actually work quite well. If you prefer, you can also build your Prusa to use inexpensive lm8uu linear bearings or bronze or teflon bushings, but the actual gains are pretty small. This video compares the two bots, and after watching it I suspect you will see why I recommend the Prusa. ;-) http://www.youtube.com/user/RepRapLogPhase#p/u/4/SCmPtEmjEYs ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
