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Messages - Sam

581
General Mach Discussion / Re: Tool probe strange behavior.
« on: September 11, 2009, 12:52:31 PM »
Im using script number 1089 (haha Greg) with Mach 42.02

CurrentFeed = GetOemDRO(818) 'Get the current feedrate to return to later
CurrentAbsInc = GetOemLED(48) 'Get the current G90/G91 state
CurrentGmode = GetOemDRO(819) 'Get the current G0/G1 state
PlateThickness = GetUserDRO(1151) 'Z-plate thickness DRO

If GetOemLed (825)=0 Then          'Check to see if the probe is already grounded or faulty
   DoOEMButton (1010)             'zero the Z axis so the probe move will start from here
   Code "G4 P1"                ' this delay gives me time to get from computer to hold probe in place
   Code "G90 G31Z-4.0 F50"          'probing move, can set the feed rate here as well as how far to move
   While IsMoving()                     'wait while it happens
   Wend
   ZProbePos = GetVar(2002)          'get the axact point the probe was hit
   Code "G0 Z" &ZProbePos          'go back to that point, always a very small amount of overrun
   While IsMoving ()
   Wend
   Call SetDro (2, PlateThickness)       'set the Z axis DRO to whatever is set as plate thickness
   Code "G4 P0.25"             'Pause for Dro to update.
   Code "G1 Z1.0 F50"             'put the Z retract height you want here
   While IsMoving ()
   Wend
   Code "(Z axis is now zeroed)"          'puts this message in the status bar
   Code "F" &CurrentFeed             'Returns to prior feed rate
Else
   Code "(Z-Plate is grounded, check connection and try again)" 'this goes in the status bar if aplicable
End If
If CurrentAbsInc = 0 Then          'if G91 was in effect before then return to it
   Code "G91"
End If
If CurrentGMode = 0 Then          'if G0 was in effect before then return to it
   Code "G0"
End If
Exit Sub

582
General Mach Discussion / Tool probe strange behavior.
« on: September 10, 2009, 09:09:25 PM »
So, I finally got around to making me one of those nifty tool setters. Dunno how I got along without it for so long now. It's kinda like indoor plumbing. Anyhow, I have some strange behavior with it. I have the feed set way up in the macro (using Scott and Gregs code) , say 50 or 75 ipm. When I first start up Mach, it works flawlessly. Then I open up a file, run the file, and then, somehow, the probing routine takes the acceleration settings from the X axis to drive the Z axis. This results in a massive over-travel, and a tool crunch. After a lengthy period of trying to troubleshoot, I decide to delete everything and re-install Mach. So I get all the pins set, axis set, screens installed, script modified, ready to rock 'n roll. As soon as I hit the zero button, it once again took the X axis accel. So I load up a file, run it, and low and behold the probe function works as its supposed to. That's exactly the OPPOSITE of the way it didn't work before the re-install. Strange indeed. So, I mucked around with a gazillion different things, and it appears that some times it works one way, and other times it works another way. One thing did remain constant, however....A probe command from a fresh start-up is different from a probe command after a g-code file has been ran. Obviously, if the feed rate is set to something very slow, it works, or at least it appears to work, as the accel is really not an issue. Any ideas??

583
That looks really nice, Gerry. I need me one of those.

584
Sorry they had to disappoint you Scott, but at least now you know. It's still a great looking mustang, anyhow. Post some more stuff when you get a chance. We would love to see them.

585
Wow, that's pretty neat. Thanks for sharing pics. We thrive on pics around here. One of my first projects was a busted safety glass in the door of a lathe. I didn't post any pics of it, as it wasn't cool looking like yours. Anybody could do it with no practice at all. :)

586
General Mach Discussion / Re: Cambam / gMax
« on: September 06, 2009, 03:08:02 PM »
There is a plugin for gmax called cnc toolkit, I believe. I would suspect that unless you already have experience with polygonal modeling, there would be a steep learning curve associated with it, and that might be time that's better invested in another more capable or user friendly program. It's been a few years since I've messed with it, so it may have advanced by leaps and bounds as far as I know.

587
Show"N"Tell ( Your Machines) / Re: New Project for the shop.
« on: September 04, 2009, 11:56:20 AM »
Now that's something I've never seen before... A used buffing wheel that's clean! Good luck on the build.

588
Show"N"Tell ( Your Machines) / Re: The Laser Project.
« on: September 03, 2009, 05:12:14 PM »
HAHAHA!!! Good one Tweak. I guess super kitty ain't to super, hugh.

589
General Mach Discussion / Re: Stepper Motors Heating Up
« on: September 03, 2009, 01:30:43 AM »
Usually this is a feature of the motor drives, I do believe. The gecko 203 drives, for example, have an "auto current reduction" and is stated in the manual as such...

AUTO CURRENT REDUCTION: The G203V reduces motor phase current to 71% of the set current value 1 second after the last step pulse is sent. The G203V also changes to a special recirculating current mode to nearly eliminate motor heating.


590
Show"N"Tell ( Your Machines) / Re: The Laser Project.
« on: September 02, 2009, 03:21:12 PM »
Quote
did you know that CO2 lasers are, apparently, better at burning corneas than they are at retinas

I don't believe you. Now, I know your going to stick to your beliefs, and I'm set in stone on mine. So I guess were just going to have to settle it once and for all......We need an idiot brave volunteer.  >:D  >:D