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Messages - ART

601
Mach4 General Discussion / Re: Mach4 Printer Port Discussions
« on: June 01, 2014, 10:04:20 AM »
Just a note that I finally have my robotic arm running under Darwin, its fast and solid here so far.
Im in the process of building an engraver out of my arm, so Ill use it to test darwin on a fairly good machine.
Ill report in future as to how it goes..

Art

602
Mach4 General Discussion / Re: Mach4 Printer Port Discussions
« on: May 18, 2014, 09:08:56 PM »
Had to call it something... :)

Art

603
Mach4 General Discussion / Re: Mach4 Printer Port Discussions
« on: May 09, 2014, 07:08:46 AM »
Hi Guys:

    Ive tried the driver with a few of you, I suspect though that my development version is incompatible with
what you are using. Testing of Darwin will have to wait until it can be included in the release demo files.
Hopefully not too long..

Thx
Art

604
Mach4 General Discussion / Re: Mach4 Printer Port Discussions
« on: May 08, 2014, 09:39:27 PM »
Terry:

 there is nothing fancy like THC in it, not that it couldnt be added. You can use up to 4 ports with 2-9 as input, and it can multiplex the inputs so theres a fair amount of IO capability, though probably far more than can actually used.

  Cant promise anything, but it should load under 32 bit systems, so far its doing well on mine.

Art



605
Mach4 General Discussion / Re: Mach4 Printer Port Discussions
« on: May 08, 2014, 06:32:27 PM »
Terry

  Pretty much. The video shows me setting it up to run a basic system..but it can do much more...

Art

606
Mach4 General Discussion / Re: Mach4 Printer Port Discussions
« on: May 08, 2014, 04:47:30 PM »
Terry:

   There is one, I just finished it today, so very few have it. Ill be discussing with Brian this week how
best to get it out for testing.

Art

607
Mach4 General Discussion / Mach4 Printer Port Discussions
« on: May 08, 2014, 12:21:58 PM »
Hello Everyone:

   In this thread I will post any information or bugs with the Darwin Printer Port driver for Mach4.

A video for configuration Darwin in Mach4 can be seen here for those testing the driver.

Darwin Config. Tutor

http://youtu.be/f2IzaLQ85YA

https://www.youtube.com/watch?v=B6SU5JVTpik

https://www.youtube.com/watch?v=f2IzaLQ85YA

Thx
Art


Link to post containing the latest plugin 10/23/2015 http://www.machsupport.com/forum/index.php/topic,27194.msg215746.html#msg215746

Latest plugin 5/20/2015  http://www.machsupport.com/forum/index.php?action=dlattach;topic=27194.0;attach=41004

Link to post containing the latest plugin 5/20/2015 http://www.machsupport.com/forum/index.php/topic,27194.msg209393.html#msg209393

A special license test plugin can be found here. 10/10/2014 http://www.machsupport.com/forum/index.php?action=dlattach;topic=27194.0;attach=38841

Link to the Arduino Panels construction. http://gearotic.com/ESW/FavIcons/index.php?topic=1086.0

608
General Mach Discussion / Re: Spindle Lock Error G76 Thread Cycle
« on: February 11, 2014, 07:52:15 PM »
good luck. :)

Art

609
General Mach Discussion / Re: Spindle Lock Error G76 Thread Cycle
« on: February 11, 2014, 06:08:38 PM »
LP:

  Lastrot is the int's of the last rotation counted.

NOTE:  I recommend if threading that you do not allow Mach3 to pwm control the spindle. The reason for this is that most spindles these
days have their own internal regulator so Mach tries to control the speed at the same time and it can create instabiility as the twp controls
fight each other. Most will find stability in threading increases drastically if you set a static speed in the invertor alone.,

  I recommend allowing the operator to dial in a speed for the spindle, and not to let MAch3 control anything other than on/off.

Art

610
General Mach Discussion / Re: Spindle Lock Error G76 Thread Cycle
« on: February 11, 2014, 03:13:58 PM »
Hi Guys:

 Well, lets see what it says..

>>Mon - 22:31:31 ---Spindle Lock: 4721 , Total Ints: 0, Total Spindle Ints: 0, Error: 728, Adder: 0 LastRot: 5830
Mon - 22:31:31 ---Spindle Lock: 4721 , Total Ints: 5221, Total Spindle Ints: 4721, Error: 500, Adder: 0 LastRot: 5964
Mon - 22:31:31 ---Spindle Lock: 4721 , Total Ints: 10606, Total Spindle Ints: 9442, Error: 1164, Adder: 0 LastRot: 5876
Mon - 22:31:31 ---Spindle Lock: 4721 , Total Ints: 15426, Total Spindle Ints: 14163, Error: 1263, Adder: 0 LastRot: 6009
Mon - 22:31:31 ---Spindle Lock: 4721 , Total Ints: 20116, Total Spindle Ints: 18884, Error: 1232, Adder: 0 LastRot: 5937
.....

  Ok, so the spindle was seen to be running at 4721 interrupts per rotation with no load just prior to threading..( thats what the spindle lock means). Not sure of your interrupt freq., assume its 25K so you have
40us per int so .188 seconds per rot for 5.29 per second or approx 320RPM. ( again, assuming 25K interrupt time, always use the lowest interrupt freq you can get away with for stabilities sake..).

  Then you started the trhead. Amazingly it ran slow even before it hit the material.. it took 5221 on the first pass, so Mach likely slowed the axis to compensate..it kept slowing every rotation as the
error kept building. It never really catches up to the expected time. Really, the Total Ints number should try to stay near the Total Spindle Ints. Mach tries to slow things down to make that so. The number
under Error: is the actual number Mach uses to slow down. So its slowing every rotation and by a variable amount.

  Try running a thread in the air, the numbers should be much closer.( Total Ints: *********, Total Spindle Ints: yyy, ) If they are not , then you probably have either noise ( because of a 3..5 volt port maybe being ore sensitive?), or the interrupt
on that pc isnt very stable. Your driver test should display spikes or other patterns instead of a straight line if thats so. The printout seems to simply show that Mach doesnt seem to be able to track very
closely though it IS trying to. The problem seems to be there is too much variation. Id suspect noise or PC interrupt stability as the root issue if the threads wander..

Art