Well when you first started the thread I suspected a bad portion of
memory. But when you changed out the PC and still had the same problem
I sort-of scrap that idea. Unless you used the same memory?! Then I
remembered how much trouble that one machine was and thought it could
be a bad chip
Kirk,
Can you place a cooling fan or use a can of air on your controller at
about the time it is going to die ? Mainly on the chips responsible for
communicating with the PC.
I have seen something like this on a industrial automated sewing
machine. And it ended up being a chip that communicated
Kirk Wallace wrote:
In case anyone is interested, I have an .ngc file that I'll probably run
tomorrow, but if anyone finds anything that might improve it, I would
appreciate hearing from you. Thanks.
http://wallacecompany.com/machine_shop/EMC2/ngc/encoder-100ppr-4c.ngc
Without reverse
On Sat, 2009-06-13 at 08:17 -0700, Lawrence Glaister wrote:
Hi Kirk,
Looks like you have been having fun in gcode. One thing you might want
to consider for an encoder wheel is to make the cutouts the same size as
the solid areas to get as close to a 50% duty cycle on the detector(s)
as
I don't know about anyone else but I would think someone that could
design and build a wheel with slots and then install a device to read
the slots could then, without much problem, design a holding device
for all concerned items. :)
IMHO
Stuart
On Sat, Jun 13, 2009 at 10:36 AM, Kirk
Nice job, Lawrence.
When I get GWiz into good enough shape to release, I'd like to be able
to steal your code and make a wizard out of it. Would you consider
GPLing it? Or better yet, releasing it to the public domain. I say
better yet because then you can just add a single line comment:
2009/6/13 Kirk Wallace kwall...@wallacecompany.com:
I can never find the sensor I want with the mounting I like.
I have found these to be convenient.
http://www.optekinc.com/datasheets/OPB702.PDF
Because they are focussed-beam sensors there is no need for the flag
to be especially far from the
2009/6/13 Lawrence Glaister ve...@shaw.ca
Hi Kirk,
Looks like you have been having fun in gcode. One thing you might want
to consider for an encoder wheel is to make the cutouts the same size as
the solid areas to get as close to a 50% duty cycle on the detector(s)
as possible. You didnt say
Hi Sven,
The 3 sensors are used to give A,B and index pulses. This form of
encoder yields full direction and speed information from the 2
quadrature channels as well as a once per rev reference pulse.
For threading, you really only need the A channel and the index pulse,
but for rigid tapping, you
2009/6/13 Sven Wesley svenne.d...@gmail.com
2009/6/13 Lawrence Glaister ve...@shaw.ca
Hi Sven,
The 3 sensors are used to give A,B and index pulses.
...
...
Ah, I see. But shouldn't it be enough with two? One of A or B could be
index as well, or am I swimming deep here?
--S
Wait
-users] .ngc file RFReview
Reply-To: Enhanced Machine Controller \(EMC\) emc-
us...@lists.sourceforge.net
Nice job, Lawrence.
When I get GWiz into good enough shape to release, I'd like to be
able to steal your code and make a wizard out of it. Would you
consider GPLing it? Or better yet
My apologies to Ken. I got my files back to where the only difference
was the one had named o-words and the other didn't, and guess what,
neither would work anymore. So I must have changed something else in
the process of adding named o-words. I finally got it working with
named o-words
In case anyone is interested, I have an .ngc file that I'll probably run
tomorrow, but if anyone finds anything that might improve it, I would
appreciate hearing from you. Thanks.
http://wallacecompany.com/machine_shop/EMC2/ngc/encoder-100ppr-4c.ngc
--
Kirk Wallace
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