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Messages - MCONCEPTS

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1
Mach3 doesn't give any errors. Just loads the G code and stops on that line (line 304) out of several thousand lines and doesn't generate the visual toolpath screen. I have it resolved now, I found a tiny line segment so it was probably attempting to cut something that was less than .00001 so it had I0 J0 so I deleted it and created a new line segment. Strange that it doesn't have an issue with the mirrored reverse.

2
OK. I think I know why Mach3 is having an issue. The line the G code stops at is G17 G03 X2.787 Y1.167 I0. J0 F40. I don't fully understand the G code but the G03 should have something specified for I or J in order to do a CCW Arc Correct? I don't think Mach3 likes the I0. J0 being zero. I found that spot on the engraving and deleted the line segments in the area and created new line segments. I've generated the g code and I no longer see this bad entry so it's probably fixed. I'll test it on Mach and see in the morning.

3
I'm having a strange issue that I'm not sure how to fix. I'm doing an ingraving with G code generated by BobCAD/CAM. I've engraved and cut one part, and I'm now trying to do the mirrored reverse of that same engraving and part. I used the same CAD drawing, mirrored it across the Y axis and generated the G code. But Mach3 loads the code, doesn't generate the toolpath and stops at the first line that has a G17 in it. Two lines exist with G17's and when I click on the G code display in Mach3 it just jumps back and forth between the two G17 lines. I'm assuming it's indicating a problem but the same G17 lines exist in the mirrore reverse and that G code loads just fine. Anyone have any suggestions on what to look at?

4
General Mach Discussion / Re: Problem with XBOX 360 Pendant...?
« on: November 17, 2009, 01:52:24 PM »
Sorry, with the wired controller you don't need anything else. the same one that plugs into the XBOX 360 will work plugged directly into the USB port on the PC. I just went to Walmart, picked up a standard XBOX 360 wired controller and plugged it in, loaded the drivers and the pendant plug in and got everything working within minutes. I love this pendant and you can program the buttons to do just about anything you want. I have the X,Y and A buttons zero out the X,Y and Z dro's. I use the start button to run the program and programmed the right joystick for Z axis up/down and the left Joystick does the X/Y axis. Works Perfect, I couldn't be happier with it. Plus I impressed my boy's that think its really cool that Daddy can control his machine with an XBOX controller. You won't get that kind of excitement using other pendants.  :D

5
General Mach Discussion / Re: Problem with XBOX 360 Pendant...?
« on: November 17, 2009, 12:59:45 PM »
Dave,

To use the Wireless controller you have to buy a XBOX Wireless Receiver for Windows. This is a USB device that allows your wireless controller to communicate with your computer. I used a wired controller since my computer is only about 5 feet from my machine and it was cheaper than buying the controller and receiver.

6
General Mach Discussion / Re: Problem with XBOX 360 Pendant...?
« on: November 15, 2009, 11:30:25 AM »
Ok. I'm sure no one but me has replied to this thread because I'm a moron... One of those times where you wish you could delete a thread. Anyway, my ignorance in understanding Machine and DRO Coordinates caused this issue. I was in fact rasing the Z axis and resetting the DRO to zero so I did have a negative Machine Coordinate of less than zero. Learn something new everyday  :-[ Someone needs to add a dumba$$ icon but embarrassed works too.

7
General Mach Discussion / Re: Problem with XBOX 360 Pendant...?
« on: November 15, 2009, 10:24:57 AM »
I think I have this figured out, although I don't understand why I'm having this issue now and wasn't before  ??? . I figured out that a G53 is a Machine Coordinate move and not an axis DRO move so G53 Z0 should move to Machine Z0 and I think it has always done that but Machine Z0 is set when my machine and Mach3 are turned on and so machine Z0 is always above actual Z0. It appears now that a G53 Z0 is moving down below my DRO Z0 the amount of the machine offset that should be above actual Z0 and crashing into my work. How would this have gotten reversed?

8
General Mach Discussion / Re: Problem with XBOX 360 Pendant...?
« on: November 15, 2009, 09:21:02 AM »
OK, after getting a few hours of sleep, this is not an issue that is specifically with the XBOX 360 controller. I am having the same issues with the Mach3 Jog so I must have changed a setting somewhere. When I zero out the X,Y and Z axis, it is showing up on the G54 Offsets so when the system goes to G53 Z0, it goes negative the amount the DRO was before it was reset to zero apparently because of the offset being set. I'm looking at the Mach3 manual to try and find out what setting is doing this. If anyone knows how to fix this, let me know.

9
General Mach Discussion / Problem with XBOX 360 Pendant...?
« on: November 15, 2009, 01:29:29 AM »
I purchsed a wired Microsoft XBOX 360 controller, followed the instructions and installed the XBOX 360 Controller Pendant and it works great! However, now that I am using the controller to position X0,Y0 and Z0 and attempting to cut, I've found an issue that I'm not sure how to fix. My G code does a G53 Z0. then a G53 X0, Y0 at the beginning of the file and before each tool change. Strange thing is, when I postion Z using the Pendant, it appears to be saving the distance moved with the pendant as a offset of some kind on the Z axis because when I start the program and it goes to G53 Z0. It continues past Z0 to some random depth that seems to be realted to the amount I moved the Z axis with the controller, then moves back up to my Z rapid height of .1 and cuts. If I move the Z axis using Mach Jog, I don't seem to have the issue. Is there a setting somewhere that is causing the Z axis movements to be affecting offsets in Mach?

10
Had the issue again on another Job last night..... I haven't gotten a chance to test this yet but I think I might have figured out the issue. For the last two times I have had the compensation issue it has been right before a tool change, after finishing the final cut. I think even the time before that it was the same situation but I didn't notice it util it started cutting after the tool change. I started having the backlash problem reappear after I upgraded to BobCAD 23 although the code looks fine and I hadn't cut enough after thinking the issue was originally fixed to assume it had anything to do with the BobCAD upgrade from V21 but BobCAD 23's CAM Tree and Mill/Router post automatically turns on and off the router for me in between tool changes (I really like V23 CAM alot, so no complaints here).  I think I'm getting the bad movements in the table when backlash compensation is turned on and the router is being turned off after the last cut. The Mach Mill/Router post was setup to turn the router off immediatly after finishing the last cut on the tool change and then move to home X0,Y0. This is where it misses steps, it never properly makes it to X0,Y0. I've now modified the Mach Post file to have it turn the Router off after it reaches X0,Y0 and not before so I don't get any electrical surges/interference when the router gets shut off and backlash compensation is occuring after the final cut on it's movement to X0,Y0. I think this will solve my issues even though turning off the router at that point without backlash compensation turned on has never caused me an issue once it just seems to be a combination of the two that is causing the issues but I'll test and let you know. I have several posts that I can recreate the issues with.

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