moog or pegasus. brands, those are the big names. they were used to move really heavy cast iron slides, often dovetail.
messy ( plan on leaks and kitty litter ) the hydraulic supply tops up the volume from a reservoir that you keep full these are really really beefy systems. the internal of the valve ( generic name spool valve) is like a voice coil, i doubt you can move the mass as fast as you can shake that spool. think linear scales to track the slides not the piston. tomp tjtr33 ------------------------------------------------------------------------------ Presto, an open source distributed SQL query engine for big data, initially developed by Facebook, enables you to easily query your data on Hadoop in a more interactive manner. Teradata is also now providing full enterprise support for Presto. Download a free open source copy now. http://pubads.g.doubleclick.net/gampad/clk?id=250295911&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
