On 4/22/2011 5:26 PM, Robert Pabon wrote: > Man my head is starting to spin! No wonder people just go with steppers and > call it a day. Maybe my vision is clouded by ignorance but it doesn't seem > like it should be that hard to pick up a brushless DC motor, a suitable amp > and make it work. Obviously it would be easier to just buy a sorted > motor/driver, but then it would be easier to buy a sorted CNC machine as well. > > So getting back to the motor amp combination for a second someone have a look > at hese for a minute and tell me what you think. > > This is the motor I am using: > > http://www.servodynamics.com/Drawing/23S-IE.pdf > > I am using the IG23CS-64-IE2000-S > > Servo dynamics recommends the 1224-BLS driver for this motor. The 1224BL is > the comparable amp: > > http://www.servodynamics.com/Specs/1224bl_spec.pdf > > And here are the amps I was looking at using: > > http://www.a-m-c.com/download/datasheet/bd30a8.pdf > > Servo dynamics says I am fine driving with either sinusoidal or trapezoidal. > The AMC is trapezoidal. Obviously need to add a filter card, but otherwise it > looks to be in the ballpark. Opinions?
Okay, I'm getting a bit overwhelmed here too. I'm currently using steppers on my saw beveler, but have future thoughts of upgrading to a servo based system. So, if what Robert shows as necessary, for one axis I'd need a servo, an amp, a driver, a bunch of cards for the pc end of the affair, an O scope, tons of other test equipment... Have I left anything out? ;-) I'm really beginning to wonder if it's worth the expense. Mark ------------------------------------------------------------------------------ Fulfilling the Lean Software Promise Lean software platforms are now widely adopted and the benefits have been demonstrated beyond question. Learn why your peers are replacing JEE containers with lightweight application servers - and what you can gain from the move. http://p.sf.net/sfu/vmware-sfemails _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
