It would be nice if you also implemented a callibration table, as my microstepping unit is able of extreme amounts of microsteps, but they are not exact, so that you could run one axis at a time at various speeds and remember what the sagging behind the assumed position was and compensate for that. Ideal controller would be one which would be a servo drive, so that the EMC would only command position and controller would catch /do whatever necessary to be in that position in time specified etc..
Why don't you make a mail-list where you would send mail to people interested as you make changes to the project. On Dec 19, 2007 8:02 PM, Anton Buzinski <[EMAIL PROTECTED]> wrote: > > > > hi Mario, > > we are hoping to have the pci board in beta testing in the next couple of > months. will know the pricing then. keep in touch as we will be looking for > potential beta testers. > > thank you > Anton > > > > > > > > ----- Original Message ---- > From: Mario. <[EMAIL PROTECTED]> > To: EMC developers <emc-developers@lists.sourceforge.net> > Sent: Wednesday, December 19, 2007 11:45:29 AM > Subject: Re: [Emc-developers] Stepper Controller > > Currently the step resolution and encoder resolution are independent (but > stepper use with encoder is not that used much). > When you are going to make the board, could you please post the pricing and > availability too? The other guy who made similar board for PCI (USB is > useless due to unpredictable latencies) was not able to post about pricing or > sale for months after the announcement that they have it ready :(. > > > On Dec 19, 2007 7:41 PM, Anton Buzinski <[EMAIL PROTECTED]> wrote: > > > > > > > > > hello EMC team, > > > > we are working on a stepper controller board in pci and usb format that > > will provide high step rates (upto 5mhz or so). we are trying to figure > > out how the driver might work. could you tell us what api or global > > variables we can use to findout the axis command position for the current > > cycle and the configured number of pulses per unit? > > > > if we use an encoder interface for feedback to emc (instead of just a step > > pulse counter), the encoder resolution may or may not match the motor steps > > per rev. how do we deal with this discrepency? will emc allow user to > > enter both encoder resolution as well as motor step resolution? > > > > thank you > > Anton B. > > www.vitalsystem.com > > > > > > ------------------------------------------------------------------------- > > SF.Net email is sponsored by: > > Check out the new SourceForge.net Marketplace. > > It's the best place to buy or sell services > > for just about anything Open Source. > > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > > > > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services > for just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
