Jon, The mill is larger than a Bridgeport. Its a 7,000# Tree Journeyman 300 with a 12X26X6 envelope and a 500# part capacity. The motors, reduction (about 2.5:1), ball screws and encoder counts were not changed in the conversion to Mach3. The original amps, servo dynamics, were rated for 20 amps continuous and 45 amps surge. The machine works OK with Gecko's but is dreadfully slow. Mach3 has an excellent CV algorithm that almost entirely eliminates corner rounding even for slow axis and acceleration.
John, Thanks for the input. "The answer to 'is anyone using' is probably 'not yet'" is good feedback. I will probably play around a bit on a bench top implementation as I already have the 7I43, 50 pin breakout boards and cables, spare servo and PC's. All I'm missing is a suitable PWM amp. I don't want to distract developers by getting them involved in supporting an EMC2 newbie on a "play" installation as its not a good use of resources. I'll look around linuxcnc and see if there is documentation and a sample configuration that I could use as a starting point. =========================================================================== Does anyone have any suggestions for an inexpensive PWM amplifier to use for testing? Thanks again, Roger ------------------------------------------------------------------------- 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
