On Sat, May 27, 2017 at 1:58 PM, Gene Heskett <[email protected]> wrote:
> On Saturday 27 May 2017 15:52:54 Chris Albertson wrote: > > I'm sure of it. That posted price is about $65 less than when I checked > last. So the switchover will be considerably speeded up unless the > freight eats the difference. And it does eat much of it at $38 freight > from HongKong. That brings the per axis cost up to $126 for the 3Nm > unit. > It might cost less. With normal open loop steppers and analog drives like the Gekko or Leadshine we need to over specify the motors or run them considerable under their maximum rating so we are SURE not to skip steps even in the worst case. But with closed loop servos we can push the limit and buy a smaller motor for the same job. So you can't compare motors of the same power, less power is needed for closed loop. That said. With no experience with these, I'd buy the larger size first Yes, until an importer buys these in bulk we will have to pay to ship them one at a time at much higher price. -- Chris Albertson Redondo Beach, California ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
