Slavko Kocjancic wrote: > > > I had 3axis machine and work happy with 1000mm/min. But if I drive same > motor/driver/machine with 555 timer and translator I can get over > 2500mm/min. So EMC2 probably has too much jitter. I think you would find the hardware step generator boards help greatly with this. I also don't think the step-wise acceleration is the problem, as that doesn't change when I put in one of my universal stepper controller boards. but, the plain pulse-pulse jitter does improve. > I looking to mesa for $79 and I can live with that but they doesn't > support quadrature output as all my drives are not STEP/DIR but are > phase drives or quadrature. > The Universal Stepper Controller does have a quadrature (phase drive) output, by flipping a DIP switch. > And I like to complete EMC2 in way as is. FREE! Emc is Free so the some > board should be free too. > Oh, sure, I should combine $97 in parts (plus the shipping to get those parts to me), assemble them onto a PCB with my $7000 used pick and place machine, then visually inspect the board and run tests on it, and then ship it to you, all at my cost! That makes a lot of sense. > The one parallel port is just on limit for many machines. there are no > schematics for some expander on EMC2 pages. Just commercial one. That is > not right. > If I complete the board then will be available with least a hex code if > not source. > I also have thousands of hours in design and development on my firmware, I should also give that away, too.
Geckodrive and others should also be giving away their drives as well. The computers should also be sent to your door free of charge, whenever a new model comes out! Uhhh, what planet are you living on? Jon ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
