>> Question on the system mechanics. How accurate do you need to be with a >> Spray system? Why spend the money for servos in this application? I would >> think the accuracy levels needed for spraying would be well served (cost >> and >> operationally) by a stepper system? >> >> BG >> >> > I agree on the argument leading the question above. Servo's are fun but it's > overkill for your application. Well, if you get them for free why not, if > you pay - use steppers and spend the budget on the sprayer instead. >
You are right, servos seems to be an overkill here. But there are two reason for us to use them: 1. It's an experimenting system where we want to try different speeds - also higher speeds like 2m/min. Yes theoretically possible with stepper motors, but... 2. We also want to get experience for a bigger project we are planing. There we want to build a complete milling machine with a higher dynamic and accuracy. So servos are definitely needed there. > But to return to the original question, I run servo's with 6 m cables with > no problem. But you need good cables and good encoders. If you do have > quality cables (and encoders) the cables can be much longer than that. My > friend has a servo based system big enough to mill a complete boat hull, I > would estimate the cable length to more than 15 m. > Thank you for your hints. -Kai -- Schaeffer AG Dipl.-Phys. Kai Schaeffer Vorstand Nahmitzer Damm 32 Tel. +49-30-8058695-25 12277 Berlin FAX: +49-30-8058695-33 http://www.schaeffer-ag.de HRB 93611 B, Amtsgericht Berlin Charlottenburg Vorstand: Jörg Schaeffer, Kai Schaeffer Aufsichtsrat: Dieter Kersten (Vorsitzender) ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
