That gets rid of the whip/critical speed problem but doesn't solve the cost issue. In general, driving the nut is much more difficult than driving the screw. I have a Bridgeport Series 2 Boss and the X screw is driven via the end of the screw off the left end.
Dave On 11/6/2013 8:11 PM, [email protected] wrote: > why doesn't someone try turning the nut not the screw? Bridgeport bosses X > axis screw was bolted to the end of the table > > Terry > > On Nov 6, 2013, at 5:24 PM, John Thornton <[email protected]> wrote: > >> I have a belt driven plasma table that I've been using for years, in >> fact it was my first EMC machine that I built. The biggest problem with >> my design is the linear bearings that I used, they just slide over the >> extruded aluminum. I would go with bigger belts next time or invest in >> the dual belt system if not too pricy. >> >> http://gnipsel.com/shop/plasma/plasma.xhtml >> >> JT >> >> On 11/6/2013 1:47 PM, Marshland Engineering wrote: >>> I'm looking to make a new CNC table for both Plasma and possibly Plastic and >>> Aluminum cutting. It will be about 1.8m x 1.2m. >>> I was wondering if anyone has a similar configuration that is run with >>> toothed belts instead of ballscrews? Obvously a lot cheaper option, however, >>> I was wondering on the rigidity of the overall construction. I probably >>> would only be cutting up to 3 mm aly plate with a 6mm diameter or less >>> cutter. >>> >>> Thanks Wallace >>> >>> >>> ------------------------------------------------------------------------------ >>> November Webinars for C, C++, Fortran Developers >>> Accelerate application performance with scalable programming models. Explore >>> techniques for threading, error checking, porting, and tuning. Get the most >>> from the latest Intel processors and coprocessors. See abstracts and >>> register >>> http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> Emc-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> ------------------------------------------------------------------------------ >> November Webinars for C, C++, Fortran Developers >> Accelerate application performance with scalable programming models. Explore >> techniques for threading, error checking, porting, and tuning. Get the most >> from the latest Intel processors and coprocessors. See abstracts and register >> http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ > November Webinars for C, C++, Fortran Developers > Accelerate application performance with scalable programming models. Explore > techniques for threading, error checking, porting, and tuning. Get the most > from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
