First WOW these AC servos are amazing. The resolution, torque, and individual steps (131072) per rev is just awesome! Proud to own such great technology and I have only just jogged these things around in Mitu’s PC Config software. Anyways I could use some feedback/advice on how hard I should push the servos in terms of loading. I know you can get closer to their peak power output than steppers because of the encoder feedback/error detection but how close would you go?


Some numbers, I have 184oz/inches of continuous torque and 3000rpm nominal per servo. Building a dual drive gantry, thinking of about something between like a 6 to 9 to 1 reduction. So tell me if I have the engineering right, going rack and pinion. 184.10oz/in x 6(reduction) x 2(radius) because I have a one inch diametrical pitch pinion thus the radius is the lever arm which in my case is .5 . So almost 140 pounds of force per motor sound right???? My gantry weighs around 100 pounds, 10' x 4' table for routing and plasma. Seems more than sufficient to me, especially if you look at peak torque and rpm that is available. Peak torque is almost triple this for 10 seconds and peak rpm can hit 5000. So maybe even more reduction would be necessary to take advantage of this reserve punch.


Also does anyone know how to hook up a smooth stepper card to use Quadrature pulses? I guess you need the right breakout board or maybe it is simpler than that. Quadrature would really allow me to utilize the full resolution of the drives. Thanks to all posters in advance. See my website for pics of my setup to be. Must type in your browser PhiladelphiaMachineWorks.com