Hi Flo, I try not to say bad things about Mach, as one isn't supposed to say about any competitors. I'll try to say good things about emc2 though ;) I think (after trying some plasma cutting on Mach today for the first time) that emc2 should definately work better than that on a file with short segments. I don't exclude this machine to be horribly out of tune, but I saw cutting speeds of 3000 mm/min going down to maybe 3-400 mm/min on segments about 2-3mm long. I would assume it should do better than that. Anyways, get a LiveCD, try it yourself - if you don't have any complex things set up, then you can see what happens. Maybe even limit the config to just get your motors tuned up and try a dry run. Be sure to use G64 Pxx to set max deviation (I use something like G64 P0.1 for mm). This allows some corner cutting, to keep velocity high enough, with the loss of some precision. The more loss, the faster it goes. To find the right balance is up to you.
Regards, Alex ----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Friday, January 23, 2009 22:16 Subject: [Emc-users] Replacing Mach 3 by EMC? Performace? Hallo, I new to EMC and before I start to work my self through the documentation and try to get it running with my machine I'd like here your opinions: I'm looking for a solution to control a 4 axis CNC mill (3 axis router + rotator axis). At the moment the mill is controlled using Mach 3 running Windows XP. The mill is controlled by simple step and direction signals, it is connect to the PC by using two LPT ports. So I think it should be rather easy to setup EMC, right? The reason I'd like to change the soft CNC is that Mach 3 slows down the machine dramatically on complex fine cuts with a large number of short G1 movements. Can I expect an improvement of the cutting speed by utilizing EMC? I think it depends on how good the tool path look ahead is. What can I expect from EMC running on a standard PC (3 Ghz Core 2 Duo, 2GB RAM, 2 PCI LPT cards)? I hope you can comment on my quite unspecific questions. Greetings Flo ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
