On Wednesday 05 December 2007 12:14, Roland Jollivet wrote: > Hi All > > Thanks for all the informative replies. I'll pursue the references. > Sounds like it's doable, but the time/effort spent on software development > will exceed the material savings.
On a rigidity for rigidity, accuracy for accuracy comparison, I believe that your savings will be a negative number - software issues aside. Precision ground ballscrews are not needed for an entry level machine, and at the other end of the spectrum, building your concept to accurately handle significant metal working tasks seems very expensive indeed, although it may offer benefits that would justify the cost. Try experimenting with allthread, acme rod, or even Nook's XPR. You may need a little more motor due to frictional losses, but I'm running a wood router with 1/2"-20 allthread, and in that application it seems to be adequate. Not what I'd CNC a mill with, but I gather that's not what you are really trying to do, and it is really hard to beat the price. Good luck, and I hope you prove all of us doubters wrong. I don't mind egg on my face if its for a good cause. At worst case, it is an interesting idea, and I'd like to see one running. ------------------------------------------------------------------------- SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
