Hi Sergey I've set up both here for testing and have gotten a Sherline to rapid at 125 IPM. The little leadscrews become a problem with whipping and rather fast wearout. For my money I'd set up steppers. That will get you into the world of CNC. You shouldn't loose steps as long as you keep the speeds below 80% of the speed at which you first see lost steps.
I'm with you about wanting servos so if you've got the space look for an older cnc machine with a dead control or retrofit one of the available benchtop machines. Rayh On Mon, 2008-07-28 at 01:14 -0400, Sergey Izvoztchikov wrote: > 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 ------------------------------------------------------------------------- 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
