Messages

41

General Mach Discussion / Re: Soft limits warning

« on: September 09, 2011, 03:58:14 PM »

Forgot to include the g-code in the zip file, but if you look back at my third post in this thread you'll see the .nc file attached.

42

General Mach Discussion / Re: Soft limits warning

« on: September 09, 2011, 03:51:31 PM »

Here's the attachments. I tired using the home offsets, see picture attached of the settings I used. It still didn't fix the warning message, the only way I can get rid of the message besides turning soft limits off is move the Z max to say 3, it just doesn't appear to be calculating tool offsets when reading the program before running it.

43

General Mach Discussion / Re: Soft limits warning

« on: September 09, 2011, 03:22:38 PM »

Doing that means I would have to adjust all the locations in my tool change change script and touch off, right? And then I would also have to edit my post because the Z0 moves would be at the soft limit, through the safe zone. I had just test run a few programs before reading this and nothing in the standard g-code in every file causes the machine to go near the soft limits yet I get the warning every time.

44

General Mach Discussion / Re: Soft limits warning

« on: September 09, 2011, 02:45:36 PM »

I'm not quite sure what you're suggesting to change. The home switches are all 0 in the machine coords, on the Z that's almost the very top of the ball screw, .65 is the exact end of the Z axis in machine coords. The only time the machine homes to Z0 besides homing is in the very beginning or end of a program, during a tool change, but it goes to Z0 in G53, never going any higher than Z0 in the machine coords.

There is no physical limit switch on any of the axis, at least not yet, I plan on hooking them up eventually this is just home the machine came. The rest of the coords I've entered for soft limits work as well, slowing and finally stopping right up to the hard stop, unless the machine is really lost then it shouldn't have a problem homing with the soft limits on, it works with them on now.

I don't quite understand what you guys are suggesting I change - the home offsets where there is all zeros now or physically moving the switch?...

45

General Mach Discussion / Re: Soft limits warning

« on: September 09, 2011, 11:02:54 AM »

I don't think I do, if I reverse them soft limits won't turn on. I have run the machine to the end of all the axis and they work as expected. I've attached a picture of the limits setting screen and also what code looks like. My tools are touched off to my vacuum table and the Z work offset is used to define pod or spoilboard height (.5"-2").

Is it not calculating the work offset in the program? Soft limits stay on when I run the program after the warning, but are they now disregarded? If the program is actually going to move past the softlimits will the soft limits stop it?            

46

General Mach Discussion / Re: Soft limits warning

« on: September 09, 2011, 10:09:29 AM »

The safe max is .4; safe min is -7.5; slow zone is .25 - the machine never leaves that range or goes into the slow zone but I still get the warning.

47

General Mach Discussion / Re: Tweaking constant velocity mode (laguna smartshop)

« on: September 08, 2011, 10:18:27 PM »

I read some more posts and figured out where the problem was: the CV Dist Tolerance setting. It was set at 180, I had experimented in the past all the way down to 1 and saw no change. I read a post where someone indicated that the value was how much it deviates from the programmed path and was using a much lower number. At .05 there was still a little bit of jerkiness is a 12" long bezier segment, at .15 it cuts the curve at the set speed and leaves the corners on the part square. I haven't looked into the acceleration settings, but now I'm getting the results I was hoping for. Thanks for the help.

48

General Mach Discussion / Soft limits warning

« on: September 08, 2011, 10:08:43 PM »

I am using a 3 axis router, and the Z zero is at the top of the Z axis, I have the soft limit set at .4". The tools are offset to the spoilboard, so all the Z moves in the g-code are -.005 or more, rapiding between 1"-2" depending on material. I'm getting a warning before running every program that the Z is out of soft limit and if I want to continue, the programs run fine. How do you keep the soft limit enabled on the Z axis without getting this warning every time?

49

VB and the development of wizards / Re: Turning on soft limit with home button

« on: September 08, 2011, 07:32:35 PM »

Thanks for the help, much appreciated.

50

VB and the development of wizards / Re: Turning on soft limit with home button

« on: September 08, 2011, 07:31:27 PM »

Ok, got it working, wierd thing is that now soft limits are on when I power up and during the homing process, the never go off unless I click them off. Here is what the script looks like now:


DoButton( 24 )
While Ismoving()
Wend
DoButton( 23 )
While Ismoving()
Wend
DoButton( 22 )
While Ismoving()
Wend
DoButton( 25 )
While Ismoving()
Wend
DoOEMButton(133)
While Ismoving()
Wend
DoOEMButton(134)
While Ismoving()
Wend
DoOEMButton(135)
While Ismoving()
Wend
If GetOEMled (23) Then
DoOEMButton(119)
End If
DoOEMButton(119)
While Ismoving()
Sleep(1000)
Wend