Tomaz, Here's a link to a short (really short) video showing the 400W motor on the X axis. https://youtu.be/43liAVILgHY
I only ever made a video of the system running with the Z axis Knee changed to the 750W motor. In that video you can see the X still has the brushed DC Servo which ultimately gave so much trouble I switched over to the 400W AC servos. Even a 1200 oz-in stepper motor with Gecko Drive could not do more that 25 ipm on the knee. The Bergerda gives me over 120 ipm which is way too fast for me if something goes wrong. I've not yet gotten to the ESTOP in time. https://youtu.be/I6lvnYhlez4 I'll see what I've got in my LCNC G-Code folder and make a video of all 4 Bergerda AC motor/drives doing something. Oh. And Donald Chen once told me the difference between their AC servos and some of the others sold on Aliexpress etc. was the encoder. They used an expensive Japanese one and he implied some of their cheaper competition used Chinese ones that weren't great. So of course the first thing I did was remove the back cover on the motor to look for labels. Sure enough. Japanese and I think in the $80 range and up IIRC. John > -----Original Message----- > From: Tomaz T. [mailto:[email protected]] > Sent: December-16-21 11:28 AM > To: emc-users > Subject: [Emc-users] Chinese 400W AC servo + driver selection > > Anyone here has experience with cheap Chinese 400W AC servos (and drivers) > from aliexpress. Which combination to choose for on > "non commercial" cnc router!? There are so many of them and not much reviews > to find ... > > > > _______________________________________________ > 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
