CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations

Posted by Jon Elson
on 2007-05-28 21:33:00 UTC
Mark Vaughan wrote:
>
> As to EMC2, I have spent a long time getting all the rest of the machine
> configured to work with Mach, I don’t really want to get into another
> package, I also have a massive array of programs prewritten for mach.
>
> I have friends at University, research colleagues that use linux and some of
> them EMC a lot, their initial presentation is that it’s brilliantly stable,
> never falls over unlike windows, just what you want to hear, then you get to
> hear about the inefficiencies, the bugs etc etc., and you really wonder
> whether it is just having to learn something else full of bugs. I know mach
> and I like it.
Well, there are plenty of bugs in the development version of
EMC, but they usually last no longer than 2 weeks from discovery
to fix. But, the stable versions made for distribution rarely
have anything serious.

As for stability, EMC has been unmatched. I use it to produce
instrument panels, housings, etc. for my products. I have been
using it since 1998, and have not had one crash, failure,
malfunction, etc. since early 1999. So, that is over 8 years,
now! I do not run the development version on my production mill
because I'd like someone else to find any bugs first, and I have
real work to do. (I do run the development version on my
minimill, but that machine is for testing and demo purposes.)

So, 8 years without a SINGLE crash! Yes, there might be some
things that could be documented a little better, we are always
working on improving that. Inefficiencies? I don't know what
you mean by that. Inefficient execution of code on the CPU?
Inefficient motion planning? I think not! (Yes, there were
some problems with the trajectory planner on EMC1 when run above
400 IPM, but I believe we have corrected that in EMC2. I don't
have a machine tool that is fast enough to ever see the difference.)

As for Mach programs, the interpreters are very similar (Mach
started with the EMC G-code interpreter) so your Mach programs
will likely run with little or no changes in EMC.

As for OS reliability, I routinely have my Linux systems run 70+
days, and my desktop Linux machine at work ran over 400 days
before a power failure got it. My power at home is much less
reliable, but the machine I'm writing this email from has been
up 59 days so far.

Jon
Jon

Discussion Thread

Zafar Salam 2007-05-26 08:18:08 UTC Big servo motors drive recommendations Mark Vaughan 2007-05-26 11:14:20 UTC RE: [CAD_CAM_EDM_DRO] Big servo motors drive recommendations vrsculptor 2007-05-26 13:26:48 UTC Re: Big servo motors drive recommendations Mark Vaughan 2007-05-26 16:33:39 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Patrick J 2007-05-26 20:06:38 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Zafar Salam 2007-05-26 23:31:10 UTC Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 01:48:00 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 02:04:07 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Steve Blackmore 2007-05-27 03:19:22 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Patrick J 2007-05-27 04:29:46 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 08:33:00 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Steve Blackmore 2007-05-27 08:35:24 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 08:37:52 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 08:42:25 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations thecalfees 2007-05-27 09:39:31 UTC Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 11:01:28 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Jon Elson 2007-05-27 11:49:02 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Jon Elson 2007-05-27 11:55:43 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Jon Elson 2007-05-27 12:03:23 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 12:36:04 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 12:37:15 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations David G. LeVine 2007-05-27 13:42:49 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations David G. LeVine 2007-05-27 13:44:57 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Jon Elson 2007-05-27 14:22:58 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-27 14:49:29 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Steve Blackmore 2007-05-27 17:56:14 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-28 01:18:09 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Steve Blackmore 2007-05-28 02:49:19 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations John Stevenson 2007-05-28 04:27:24 UTC Re: Big servo motors drive recommendations John Stevenson 2007-05-28 04:35:34 UTC Re: Big servo motors drive recommendations Mark Vaughan 2007-05-28 07:10:32 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Jon Elson 2007-05-28 21:33:00 UTC Re: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-29 00:11:18 UTC RE: [CAD_CAM_EDM_DRO] Re: Big servo motors drive recommendations Mark Vaughan 2007-05-29 00:14:09 UTC RE: [CAD_CAM_EDM_DRO] Re: EMC / Linux Anders Wallin 2007-05-29 03:07:19 UTC Re: [CAD_CAM_EDM_DRO] Re: EMC / Linux Jon Elson 2007-05-29 11:18:32 UTC Re: [CAD_CAM_EDM_DRO] Re: EMC / Linux Polaraligned 2007-07-06 10:02:10 UTC Big servo motors drive recommendations Mark Vaughan 2007-07-06 12:00:33 UTC RE: [CAD_CAM_EDM_DRO] Big servo motors drive recommendations Polaraligned 2007-07-06 18:49:32 UTC servo motors drives (Or Steppers?) Mark Vaughan 2007-07-07 00:49:58 UTC RE: [CAD_CAM_EDM_DRO] servo motors drives (Or Steppers?)