2011/4/3 andy pugh <[email protected]> > I am glad that somebody has tried those, the pricing looks very good :-) >
This is exactly why I purchased them. Much better than steppers and just a little more expensive. > Is there any option to run them in PWM mode and close the loop in EMC2? Yes, the drives itself can run in servo mode, and it is planned for the future. But I guess, some pricy card like MOTENC-100 is needed for that. > The main thing I couldn't work out reading the specs was whether > the encoder positions are available in a format that EMC2 can > understand. > "Absolute encoder is using a synchronous peripheral interface(SPI), the same as clock serial interface(CSI) to send position information to the drive". I guess, other encoders needed for servo mode. Or some converters. > As for the axis limits in cartesian space, it seems you should be able > to add them to your hexkins module. You could add some HAL pins to the > kinematics code (have a look at gantrykins to see how you can do that, > but don't get confused by the fact that gantrykins also lets you set > the parameters in the module declaration line) > > The kinematics module "knows" both the joint and cartesian positions, > so should be able to set a pin to indicate imminent table crash. > Thank you, I also thought about kins module. But I'm not a programmer at all, and it may take time to implement this. Andrew ------------------------------------------------------------------------------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
