2009/9/28 Gene Heskett <[email protected]> > On Monday 28 September 2009, Andy Pugh wrote: > >2009/9/28 Sven Wesley <[email protected]>: > >> I did as you suggested (I'm in the workshop right now) and you are > right! > >> They overshoot with no load at all. > > > >So, the good news is that they are probably big enough for the job, as > >they behave similarly under load and no-load, and have successfully > >routed wood already. > > > >The bad news is that we still have no idea what is wrong: > >It seems unlikely that both EMC and the tuning software would both > >produce incorrect pulse trains. > >All that seems to leave is corruption of the pulse-train between the > >computer and the drive, or that the drive is not making a good job of > >driving the servos. > > > >If you are in a hurry to have a working system: > > > http://cgi.ebay.co.uk/3-AXIS-CNC-Router-or-Mill-Stepper-Motor-complete-kit_ > > >W0QQitemZ280401285543QQcmdZViewItemQQptZUK_BOI_Electrical_Components_Suppli > >es_ET?hash=item41493811a7&_trksid=p3286.c0.m14#ht_1062wt_1172 > > > This one is similar to the xylotex kit, and looks to be more ready to go, > at > a competitive price. > > >Your servo system is better in principle, but perhaps you would be > >better getting a working system then fiddling with the servos when you > >don't need them? > > -- > Cheers, Gene >
I can cannot see any changes in speed even if I push put all my body weight on the Z-axis, it just runs super easy and the motors never gets warm. It doesn't _seem_ to be a force/power problem. I have put so much money and time in building a servo system. It's REALLY annoying if I have to go back to steppers. To me, these eBay-items looks pretty small too. Are they really going to make it? ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
