On 4/16/2012 1:05 PM, andy pugh wrote: > On 16 April 2012 17:58, Dave<e...@dc9.tzo.com> wrote: > > >> Perhaps Marris should consider adding this to the G540 and doing a USB >> port power steal to drive the electronics? >> > Why not use some of the stepper motor power supply? > (probably isolated and re-referenced to p-port GND using a DC/DC converter) > >
Expense. A USB cable is cheap and that eliminates the DC-DC converter cost since the power is coming from the proper side of the optos. Dave ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
