On Thu, 15 Nov 2012, Ralph Stirling wrote: > The AS5306 magnetic encoder module A and B outputs > will certainly connect to the the parallel port fine. You > can configure Hal to do quadrature decoding from the > parallel port, but your linear stage can't go very fast. > The AS5306 has 40 pulses / 2.4mm = 16.7 pulses/mm. > If I recall correctly, LinuxCNC can typically read maybe > a couple thousand pulses per second from a quadrature > encoder via the parallel port, so you would be limited to > ~100-200mm/sec in speed. > > -- Ralph
Is there hardware to go between the encoder and the parallel port to improve the resolution and speed I see some break out boards have inputs for encoders > ________________________________________ > From: Richard Ray [[email protected]] > Sent: Thursday, November 15, 2012 11:36 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] howto linear encoder > > On Thu, 15 Nov 2012, andy pugh wrote: > >> On 15 November 2012 19:13, <[email protected]> wrote: >>> How might I connect this, or something similar, via a parallel port >>> inexpensively, no MESA, to provide feedback for a stepper all running >>> linuxcnc >> >> Is it quadrature output? >> > > Yes > The "this" above was suposed to be http://wiki.makerbot.com/mle > Had a brain fart > > ------------------------------------------------------------------------------ > Monitor your physical, virtual and cloud infrastructure from a single > web console. Get in-depth insight into apps, servers, databases, vmware, > SAP, cloud infrastructure, etc. Download 30-day Free Trial. > Pricing starts from $795 for 25 servers or applications! > http://p.sf.net/sfu/zoho_dev2dev_nov > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ > Monitor your physical, virtual and cloud infrastructure from a single > web console. Get in-depth insight into apps, servers, databases, vmware, > SAP, cloud infrastructure, etc. Download 30-day Free Trial. > Pricing starts from $795 for 25 servers or applications! > http://p.sf.net/sfu/zoho_dev2dev_nov > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
