> > I also have a slant bed cnc lathe here that I am going to retrofit next. I > will need at least 2 axis of stepgens and a 0-10 volt spindle output. I > will want to bring the encoders back to the control on this also so need at > least 2 encoder counters plus spindle encoder. The reason I go for the > step-dir servos is that it costs a extra 80usd per axis to get the analog > control option from the servo supplier and that adds up when you start > getting lots of servos. also step and dir is really easy to get started > with open loop. >
Andrew, What brand of servos and drives are you using? Because I'm about to install the new control on a slant bed Mazak and I'm using these servos: https://www.ebay.com/itm/Delta-1KW-3-18Nm-AC-Servo-Motor-Drive-Kit-ASD-B2-1021-B-ECMA-C21010RS-Shaft-22mm/162717987619?epid=7007485014&_trkparms=ispr%3D1&hash=item25e2bf7323:g:BdgAAOSwSpxZ6Bw1&enc=AQAEAAACYBPxNw%2BVj6nta7CKEs3N0qUmWz426WDr%2B5Bq8tSbuMRoBFn3PL9wnIFWXvJSK8BW3IiUvFesCjNT6kqPq8OBSNR2Vu5HvqRS389wbKy%2BPWlnfFko23%2BzttmtaYgoO%2BvZklheCAvifK%2Bn51CWAKOpJ4pTXSyjT831NM3H83g5PEMTYIQqR5vTK4OlN1F0a%2FOcAimLjhFIZzwBpBVHzw00NbEdt%2BfAIofkYP3RyzMLC%2F9QNTAyH%2FDoxCgwILfdcFU9hM6W%2FkZ5YpcNUkZAhkkNnnafWfg7Czb05zvFepSBaucBdQrrZKouEnGZ0VGhb8RS0HBTGeChkcQxr1hxkTp1lWcXf9iifZpUb04r2Y%2Br54lUssdq4Jyiy3rPT87hrMx0LXACRc4%2F99pBvdWrMZXPOF7AveWFlJ9CjxhVQBfxDNUiH4sHlErU%2FTtsDsqW5uR9G3i2TG1D76wO9eWPMxCP%2BcqTsdealSXIxvzyLJ1Lss42x46L%2FJTiM7VmHfuzcUS2XOdgHu2nm2yZ4ZcHLdidkQdsW85pyhdjb88lX2YWHBWPxzVoklCcCPV4KiiNK1vuzSYEzeziKVB%2BfmO2k8jfQa%2BXRieL9eot0Afxk5chrPC0ldmY9Gf2d8VdRBpTuM%2B23F7KjRco4w3GKP1G1v0JY0%2BoLkkCVb0sTYfT4uexz%2BK96XT7QB4jtxuXbCCij4XviykKJOXnb%2FhygEvCf3%2FQnhD%2BBn%2FRyxj%2BWY7f8MCApazEgxWygL6CIoB08skRjujvScF2ovh0RDLfHBc5cB7NY1QcDRfRSrqSBag07wUuqCQh&checksum=16271798761957f6ee515acc46db9f2447a1b8bbfaf1 Chinesse, but pretty good chinesse. These work in torque, speed and step mode. El dom., 5 abr. 2020 a las 21:21, andrew beck (<andrewbeck0...@gmail.com>) escribió: > thanks for the replies guys. I am currently seeing what cards JT has that > I can get. > > I have another question though. > > I also have a slant bed cnc lathe here that I am going to retrofit next. I > will need at least 2 axis of stepgens and a 0-10 volt spindle output. I > will want to bring the encoders back to the control on this also so need at > least 2 encoder counters plus spindle encoder. The reason I go for the > step-dir servos is that it costs a extra 80usd per axis to get the analog > control option from the servo supplier and that adds up when you start > getting lots of servos. also step and dir is really easy to get started > with open loop. > > If I started from scratch and didn't have any mesa cards available what > would you guys recommend? > > I am quite happy to chop and change cards with my cnc mill if that helps. > Just want the cheapest and easiest option to set up. probably ease of > setup is more important than saving a little money. > > Regards > > Andrew > > On Mon, Apr 6, 2020 at 12:41 AM Peter C. Wallace <p...@mesanet.com> wrote: > > > On Sun, 5 Apr 2020, andy pugh wrote: > > > > > Date: Sun, 5 Apr 2020 13:14:46 +0100 > > > From: andy pugh <bodge...@gmail.com> > > > Reply-To: "Enhanced Machine Controller (EMC)" > > > <emc-users@lists.sourceforge.net> > > > To: "Enhanced Machine Controller (EMC)" < > emc-users@lists.sourceforge.net > > > > > > Subject: Re: [Emc-users] closing the loop in linuxcnc with a 7i76 mesa > > card > > > and step direction control > > > > > > On Sun, 5 Apr 2020 at 09:40, andrew beck <andrewbeck0...@gmail.com> > > wrote: > > > > > So I have a 5i25 and 7i76 currently connected I'm running out of io, so > > am > > > thinking of getting a 7i73 for the console buttons eg cycle start so > > that I > > > can free up my 7i76 io for the toolchanger. > > > > If you have 5I25 and 7I76 and need more encoders, there are a few > > options available from Mesa: > > > > > > 7I85 = 4 encoder inputs + 5 RS-422 serial ports > > > > 7I85S = 4 encoder inputs + 4 step/dir outputs + 1 RS-422 serial port > > > > 7I89 = 8 encoder inputs or 7 encoder inputs and 1 RS-422/RS-485 serial > port > > > > Peter Wallace > > Mesa Electronics > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
