On Apr 9, 2012, at 3:16 AM, Viesturs Lācis wrote: > 2012/4/9 Jeshua Lacock <jes...@3dtopo.com>: >> >> How is that possible? The encoders are connected to the Geckos, not through >> the parallel port…. > > I do not understand, what exactly is not clear to You :) > AFAIK Gecko drives will need the encoder signal for them to function, > so each encoder signal will have to be splitted/doubled/copied to both > PC and Gecko drive.
Hi Viesturs, Well OK, that was never explained to me. You were saying that perhaps no rewiring would be required, and Peter was saying that the encoders would be wired to the pins of the 5i22, but no one ever told me that they would have to be wired to *booth*. I have stated this already, but it would have been immensely helpful if I could see a simple schematic. I am a bit surprised Peter or Mesa hasn't provided one. > I guess that currently we have a basic misunderstanding due to things > not explicitly explained. And I see that You have not explicitly > explained, what exactly do You currently have in Your machine. Sorry if I wasn't clear. >> From the way You wrote Your first message I understand that You > already have a working system with encoder signal going also to PC: > 2012/4/6 Jeshua Lacock <jes...@3dtopo.com>: >> >> My Z axis is about 10,000 lines per inch, so it uses up my available >> bandwidth really fast. Right now I have the Z's max speed set to a mere 3 >> inches per sec. My Y is 24 inches per sec, and X is 10 inches per sec. That >> uses up my available 71khz. >> >> So, I understand that something like Mesa's 4I30 4 channel quadrature >> counter card will allow me much more bandwidth to run my servos faster. >> > > What kind of "10,000 lines per inch" are You talking about, if that is > not encoder signal? It could be also step signal, but encoders were > the only thing discussed in that message... > > Could You, please, expand on what exactly You have there? Where are > encoders currently connected? As I have stated, the encoders are currently connected to the Geckos. I am just using a standard setup as far as I know. I have two wires from my power source connected to the Geckos, two wires from the geckos to power the motor, the common wire, 5v and ground for the encoder, then encoder A/B going to the Gecko, and step/dir coming from the parallel port. Please let me know if anything else would be helpful. Best, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated <http://3DTOPO.com> Phone: 208.462.4171 ------------------------------------------------------------------------------ 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
