A lot of that depends on your belt arrangement. They make linear motion belting with a unique tooth profile. They use steel cords in polyurethane belts to minimize stretch and they can obtain zero backlash with that setup. To get more rigidity you can go with a wider belt but then the price of the sprockets goes though the roof. When you get that big, ball screw whipping becomes an issue if you want to use it for plasma and need to move fast on thin sheetmetal. Plus they get very expensive as you know..
Milling and Plasma is almost at opposite ends of the motion spectrum - speed wise. Then you need to face the accuracy issue ... how accurate are the belts you want to buy? What accuracy do you need? Most Plasmas of that size use a rack and pinion drive. That said, I have a belt driven plasma machine that is in progress... and has been for over a year now.. Dave On 11/6/2013 2:47 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
