On Mon, 2012-08-06 at 22:40 -0400, Ron Ginger wrote:
> Matt Shaver wrote:
> 
> > I spoke with Brian Barker at the CNC Workshop and I
> > think he said that the Mac & Linux versions would use external pulse
> > generators like the SmoothStepper _only_, at least initially. Perhaps
> > they'll go back and port their parallel port step generator module
> > later.
> 
> I have never heard any discussion of adding parallel port to Linux. In 
> these days when everyone is worried about the end of the parallel port 
> it would seem foolish to try. There are now abut a dozen hardware motion 
> controllers supported on mach, with more in the works.

A few things come to my mind.

In my opinion, motherboard and add-on parallel ports are still common
enough to not have to worry about this issue for quite a while. It seems
most people who complain about the missing ports are trying to use ITX
and smaller boards, but to me, worrying about a few square inches of
motherboard space for a machine that often weighs over a ton borders on
noise. I think it's best to consider what one wants the machine to do,
then buy the hardware that best fits the need, rather than buy what's
trendy, then try to make it work.

On the other hand, hardware step generators for LinuxCNC are getting
inexpensive enough to make them often, _overall_, cheaper than many
parallel port setups.

I suspect the Mach hardware generators are, or will be, closed and so
would not be popular with the Linux crowd. 
(If you can't fix it, you don't own it, 
http://www.treehugger.com/clean-technology/if-you-cant-fix-it-you-dont-own-it-ifixits-new-self-repair-manifesto.html
 )

... snip
> I dont mean to keep pushing mach here, but I will answer questions when 
> I know the answers.
> 
> ron ginger

If Mach comes up or can provide insight, I think anyone has the right to
defend or explore it here on the list, especially if one has first hand
experience with it. LinuxCNC users should be as open (minded) as the
software.

-- 
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/index.html
California, USA


------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Reply via email to