actually better add in the price of the 4th axis servo lol forgot about that one.
I would love to reuse the heidenhain servo motors and in fact I plan to try again on my small 4th axis motor with the help of their sales rep to save some money. I have 7 of the heidenhain motors now lol. But it is almost not worth the time to play with them. regards Andrew On Sat, Jul 4, 2020 at 9:27 PM andrew beck <[email protected]> wrote: > hey chris > > I have been using these servo drives for 2 years now. yes just email them > and they will get in touch with you. I keep in touch with bill who is > their sale rep. on whatsapp and we chat. Bill has basically taught me all > about servos lol. and I knew nothing at the start so to say he has been > patient is a understatement. > > btw the expensive prices in the document I linked at the start are for > 400v servos which I need in new zealand. I have a Japanese cnc lathe here > that runs on 220v three phase through a step down transformer and the > prices for 220v servo drives are significantly cheaper. I was quoted 290 > usd for a 2.4 kw matching servo drive and motor. that includes all cables > a braking resistor and everything else needed to run it. so I will be > buying two of these asap. > > Modbus and canbus are a bit complicated you guys might be able to use that > but I can't get it to work. and I have also given up on using their tuning > software. I have spent so much time trying to get that to work. > > another thing is you can't have pulse control (step dir) and analog 0-10v > at the same time. they use separate boards. it costs a extra 15 usd to > spec analog control. which is what I will do next time as it is much > simpler I think. just get a 7i77 and you are away. though the step > direction method is good for easier set up even if the default tuning is > pretty loose. then you can tune it later if needed. I documented it a bit > on my build thread. also I bought better encoders last time. they are 13 > bit I think 130107 PPR. I was sending about 25000 ppr to the mesa card I > think. you need to times it by 4 for quadrature also. so it is a very > high resolution. (encoders come from tiawan) > > > so step direction needs their tuning software or else you can close the > loop in linuxcnc and use halscope to just graph the position error and > velocity error. Then make changes in the servo drive and see the changes > in halscope. I used the spindle encoder counter on the 7i76 which is nice > as you don't need any more mesa cards. this is only while tuning one axis > at a time. afterward you can use the spindle encoder counter for the > spindle. that worked a treat but was pretty hard to set up. > > > So currently I have two cnc machines that need to be retrofit. One is a > 4.2 ton slant bed cnc lathe. with a fanuc controller.( what a pain ) and > the other is a 5.8 ton chevalier VMC with a Heidenhain controller on it > also a pain to fix lol. I have given up trying to interface with the > existing stuff on both machines and will just buy new servos and drives. > It is not worth the hassle. anyway here is what I am paying for everything > > for the cnc lathe > > 2.4 kw servo drives 220v three phase 305 USD per axis so 610 usd total > > for the cnc mill > > 2.5 kw option 400v three phase 490 USD per axis > > 3 kw option 400v three phase 520 USD per axis > > 4th axis extra motor 400v three phase 1kw motor 320 USD I think for servo > drive and motor > > and I will have second hand schiender vfd for the spindle. > > so all up total is should cost 610 usd for the cnc lathe > > and say 1500 usd for the cnc mill > > plus shipping which I will combine with a order of tooling on the same > pallet load. > > anyway just wanted to let people know the options.. > > Regards > > Andrew > > > > On Sat, Jul 4, 2020 at 8:55 PM Chris Albertson <[email protected]> > wrote: > >> I tracked down the specs. The model numbers in the price list are clearly >> servo motors not steppers. THey have attached 2500 PPR encoders >> >> THe servo driver can be controlled by either a 10 volt analog signal, CAN >> bus or Serial RS485. It also looks like the driver can send some >> digital outputs giving status like, current, positions and such. >> >> THey do also make three phase stepper motors and drivers for them. >> >> Their web site does not say how you can buy their products. Nor is there >> is link I can find to detailed documentation But they have an email >> address, you could ask. >> >> The prices look to be very good for what you get. >> >> On Fri, Jul 3, 2020 at 9:55 PM theman whosoldtheworld < >> [email protected]> >> wrote: >> >> > justa a warm .... these is stepper motor ... for that price or little >> more >> > you can buy servo brushless motor .... consider china stepper with >> encoder >> > is not so good for retrofit or build a good mill or late normally have >> not >> > "intelligent" drive .... for some hobbyist router or 3dprinter can be >> ok. >> > >> > Il giorno gio 2 lug 2020 alle ore 23:53 andrew beck < >> > [email protected]> ha scritto: >> > >> > > hey everyone >> > > >> > > sorry for the mess up. I changed the permissions now. never normally >> > have >> > > trouble so I don't know why they changed the default permissions >> > > >> > > and here is the link again just in case >> > > >> > > >> > > >> > >> https://drive.google.com/file/d/1f90Jhh6oEA_5jervfwnMoePqwHrX6tKN/view?usp=sharing >> > > >> > > >> > > >> > > here is the sellers website >> > > >> > > if this fails you can search for yuhai servos and they come straight >> up >> > > >> > > http://www.zjyuhai.cn/en/ >> > > >> > > >> > > >> > > On Fri, Jul 3, 2020 at 9:45 AM Ralph Stirling < >> > > [email protected]> >> > > wrote: >> > > >> > > > Still no identity of the mystery seller, Andrew. >> > > > Got a link to the supplier's website? >> > > > >> > > > Thanks, >> > > > -- Ralph >> > > > ________________________________________ >> > > > From: andrew beck [[email protected]] >> > > > Sent: Thursday, July 2, 2020 2:09 PM >> > > > To: Enhanced Machine Controller (EMC) >> > > > Subject: Re: [Emc-users] Cheap servo drives from China. >> > > > >> > > > CAUTION: This email originated from outside the Walla Walla >> University >> > > > email system. >> > > > >> > > > >> > > > sorry guys! I forgot to make it a open link >> > > > >> > > > >> > > > >> > > >> > >> https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1f90Jhh6oEA_5jervfwnMoePqwHrX6tKN%2Fview%3Fusp%3Dsharing&data=02%7C01%7Cralph.stirling%40wallawalla.edu%7Cb8a715036e6e44f2d9eb08d81ecc579e%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C637293210275591153&sdata=AeW0L3oO6kifz%2FmiWbKvWqJpb8iPuJghg8f5vUQpMnA%3D&reserved=0 >> > > > >> > > > >> > > > try this >> > > > >> > > > On Fri, Jul 3, 2020 at 8:32 AM andrew beck < >> [email protected]> >> > > > wrote: >> > > > >> > > > > Hey guys just so people know. >> > > > > >> > > > > You can buy a 240 v single phase 1kw motor and servo drive for 208 >> > usd >> > > > > now. Which is so cheap. Here is a price list. >> > > > > >> > > > > >> > > > > Of course I just buy from these guys not connected otherwise >> > > > > >> > > > > >> > > > > >> > > > > >> > > > >> > > >> > >> https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1f90Jhh6oEA_5jervfwnMoePqwHrX6tKN%2Fview%3Fusp%3Ddrivesdk&data=02%7C01%7Cralph.stirling%40wallawalla.edu%7Cb8a715036e6e44f2d9eb08d81ecc579e%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C637293210275601146&sdata=pZWbVsxUXaXHA445s55fB%2B3fNypyxhThsANAjjE3llg%3D&reserved=0 >> > > > > >> > > > > >> > > > >> > > > _______________________________________________ >> > > > Emc-users mailing list >> > > > [email protected] >> > > > >> > > > >> > > >> > >> https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=02%7C01%7Cralph.stirling%40wallawalla.edu%7Cb8a715036e6e44f2d9eb08d81ecc579e%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C637293210275601146&sdata=%2BJLKIlsI2DFnvudSSbzwTYkh8EJLj7U2pbyxB2DvKqY%3D&reserved=0 >> > > > >> > > > >> > > > _______________________________________________ >> > > > Emc-users mailing list >> > > > [email protected] >> > > > https://lists.sourceforge.net/lists/listinfo/emc-users >> > > > >> > > >> > > _______________________________________________ >> > > Emc-users mailing list >> > > [email protected] >> > > https://lists.sourceforge.net/lists/listinfo/emc-users >> > > >> > >> > _______________________________________________ >> > Emc-users mailing list >> > [email protected] >> > https://lists.sourceforge.net/lists/listinfo/emc-users >> > >> >> >> -- >> >> Chris Albertson >> Redondo Beach, California >> >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
