You have asked the age old question servo vs stepper I wont tell you what to spend your money on I will just tell you what I have learned. I own 3 servo machines and one stepper. The servos are faster, period. As far as setting them up there are people here who know how and are willing to help. The other things you mentioned are relative. I have made thousands and thousands of parts on my Bridgeport stepper and only missed steps when I had a crash. Pepole will tell you that you cant trust the microsteps between the full steps.All I know is that mine dont miss steps. As far as the speed goes how much time will 50 ipm more rapid save on a machine that has 12 in or so total travel? Unless you are planning on going into some kind of production with your Sherline I dont think servos will do you any good. Some encoders on your motors for manual work is nice though but you could add them to the steppers. Im sure this didnt help with your choice Its really about the cost.
Terry On Mon Jul 28 1:14 , Sergey Izvoztchikov <[EMAIL PROTECTED]> sent: >I'm faced with dilemma, which has no obvious answer for me at the >moment. I was set to buy Xylotex steppers based kit for my CNC Sherline >Mill. After reading more about servo based systems I'm divided, I could >appreciate number of advantages of servo based systems > >- no missed steps, corrections via closed loop >- faster movement speeds, more IPS >- positions display (DRO) > >However, stepper systems are cheaper and basically ready out of the box >compare to DIY servo based system, which would require significant >build and setup time. Note, I don't have funds for commercial out of the >box servo based kit. So, DIY is preferred option. > >I don't know exactly what kind of work I will do on my CNC Mill in the >future, so it's also hard to target setup to future work. I guess I'm >trying to decide is it worth the effort and money to build a "better" >system (servo based that is) or should I not bother for such a small >Mill as Sherline and go with steppers just fine ? > >Any pros and cons of both type of systems are welcome, especially in >relation to usage on Sherline Mills/Lathes. > > > >------------------------------------------------------------------------- >This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >Build the coolest Linux based applications with Moblin SDK & win great prizes >Grand prize is a trip for two to an Open Source event anywhere in the world >http://moblin-contest.org/redirect.php\?banner_id=100&url=/ >_______________________________________________ >Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users ---- Msg sent via CableONE.net MyMail - http://www.cableone.net ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
