that?
Thanks guys for your help.
Len
-Original Message-
From: John Thornton [mailto:jet1...@semo.net]
Sent: Sunday, April 12, 2009 6:35 AM
To: Enhanced Machine Controller EEMC
Subject: Re: [Emc-users] syncing two motors to one axis
On 11 Apr 2009 at 5:45, Len Shelton wrote:
I am
[mailto:l...@probotix.com]
Sent: Wednesday, April 15, 2009 10:03 PM
To: 'Enhanced Machine Controller (EMC)'
Cc: 'Rob Tilton'
Subject: Re: [Emc-users] syncing two motors to one axis
Gentlemen,
This works! I have had it running for the past week, but I was hoping to
have time to get the rest
On Wed, Apr 15, 2009 at 10:13:12PM -0600, Len Shelton wrote:
After taking the time to actually study the HAL manual, I have to say that
HAL ROCKS!
It's really neat to see it in action with an intentionally skewed gantry.
Can you make a video of this somehow? I would love to see it!
I'd
On Wed, 2009-04-15 at 22:03 -0600, Len Shelton wrote:
Gentlemen,
This works! I have had it running for the past week, but I was hoping to
have time to get the rest of the limit/home switches installed before I
posted this.
Congratulations Len. I'm glad you persevered. I'm looking
Message-
From: Stephen Wille Padnos [mailto:spad...@sover.net]
Sent: Friday, April 10, 2009 10:32 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] syncing two motors to one axis
Len Shelton wrote:
Jon and Rob,
You guys obviously know a lot more about the inner
(EMC)
Subject: Re: [Emc-users] syncing two motors to one axis
Len Shelton wrote:
Jon and Rob,
You guys obviously know a lot more about the inner working of HAL than I. I
am still no closer to understanding what lines of code I need to put into
my
HAL file.
Can you please translate this simple
(EMC)'
Subject: Re: [Emc-users] syncing two motors to one axis
Thanks for the help so far. I did some studying of the manual last night and
this is what I have come up with based upon your logic:
loadrt and2 count=3
loadrt or2 count=2
addf and2.0 base-thread
addf or2.0 base-thread
net home1
Len Shelton wrote:
Jon and Rob,
You guys obviously know a lot more about the inner working of HAL than I. I
am still no closer to understanding what lines of code I need to put into my
HAL file.
Can you please translate this simple boolean text notation...
home_en1 = dir OR NOT home1
: Wednesday, April 01, 2009 8:30 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] syncing two motors to one axis
Len Shelton wrote:
So, are you saying that it can't presently be done because no one has
written the hal components to do it?
No, actually I do not believe any new HAL
Len,
you give me too much credits.
I don't know that much about the HAL and to be honest, I am just able to
understand the HAL files that I got as samples.
Did this all with a bit of standard logic gates since my PC does not have
enough I/O to capture all the signals.
But my 5i20 and 7i43 Mesa
Len Shelton wrote:
So let's say you have two drives, two motors, and two home switches on the
same axis (gantry type machine). The problem with this arrangement is
synchronization. The control needs to be aware of the two motors and needs
to home both at the same time. While homing, we need to
]
Sent: Wednesday, April 01, 2009 11:28 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] syncing two motors to one axis
Len Shelton wrote:
So let's say you have two drives, two motors, and two home switches on the
same axis (gantry type machine). The problem with this arrangement
Len,
steppers makes this problem very easy and it has indeed been discussed
before.
Searching on the term two motors I was able to retrieve a number of my
own posts about this.
http://article.gmane.org/gmane.linux.distributions.emc.user/8147/match=two+motors
is an older post describing a
Len Shelton wrote:
So, are you saying that it can't presently be done because no one has
written the hal components to do it?
No, actually I do not believe any new HAL components are needed. You
need an and gate to detect when both home switches have been tripped.
This AND output sets a
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