1 Attachment(s)
Re: Auto squaring Problem
Oops. forgot the XML. Here it is.I have had to zip it, the XML wasn't attaching directly.
Regards,
Seshadri
Re: Auto squaring Problem
Use :
DoButton(24)
DoButton(22)
RefCombination(10)
Are you using a motion controller? If so, it may not support slaved homing.
Re: Auto squaring Problem
Are you using the parallel port then? What version of Mach3?
Uncheck A axis is Angular in General Config.
Re: Auto squaring Problem
I think that's only used for rotaional feedrates.
I'd try using version 3.043.062.
The latest one from the website is known to be buggy.
Re: Auto squaring Problem
Hi Gerry,
fresh setup of MAch3 version 3.043.062.
Unchecked A is angular,
Ref all code is
DoOEMButton(1024)
DoOEMButton(1022)
RefCombination(10)
All other settings same as before.
For checking, I first tried with 'home slave with master', and all is fine.
When I uncheck 'home slave with master',
No Luck, the behavior has not changed. Y triggers and A continues going ..
Re: Auto squaring Problem
Check the diagnostics and make sure that Mach3 is seeing both the Y and A home switches.
If it is, then I'd try an older version of Mach3. I use 3.042.020 or .028, and it works fine for me.
Re: Auto squaring Problem
Quote:
Check the diagnostics and make sure that Mach3 is seeing both the Y and A home switches.
So I went ahead an dug in.
I was watching the diagnostics screen, where Y and A are M2 HOME and M4 HOME respectively
When I hold a screwdriver to the Y home switch, the M2 light triggers.
Alternately,
When I hold a screwdriver to the A home switch, the M4 light triggers
While the screwdriver is on Y, if I hold another screwdriver to the A home switch, then the M2 light goes off, and thats it. The M4 light does not come on at all.
Same happens in the inverse. The behavior is the same with the homing switches on other axes. It doesn't seem to be capable of reading any two home switches at the same time!!!!!
When I check the voltage on the g540 pins, The is voltage is normally 11.4v. When triggered, it drops to 7.6. At this time, the voltage on all the other axes has gone up to 13.5!!!
So what is happening is, Y is triggered, voltage on that pin drops to 7.6, but at the same time, A has gone to 13.5. Then A triggers, and the voltage on A falls only to 9.5!
I have all my homing switches sharing input power, so I thought I would try isolation. I kept everything else the same, and gave a separate 12v power to the A sensor. Now, It does not trigger at all.
I have a feeling this is a wiring problem :-(
Do you remember seeing anything about this kind of a problem?
Regards,
Seshadri
Re: Auto squaring Problem
No, I don't use a G540, so can't help you. But now you know why it's not working.
Re: Auto squaring Problem
That's Cool, Gerry. Really appreciate your help, though. Thanks a ton!
Regards,
Seshadri
Re: Auto squaring Problem
Just Putting in an update here, for those who come later
the solution was to have a wire connecting the proximity sensor -ve terminals to the gecko ground..
and it worked perfectly.
Once I realized the problem was electrical, the correct links were easy to find:
Again, John comes to my rescue:-)
http://www.cnczone.com/forums/<wbr>gecko-drives/318750-cnc-2.html
http://www.cncrouterparts.com/<wbr>g540-nema-23-wiring-<wbr>instructions-p-144.html#<wbr>n23proxwiring
Once more, thanks a ton Gerry for all the help
Regards,
Seshadri
Re: Auto squaring Problem
As an add to Seshadri's update for those who come later...
I had the same problem as described in the original post, and also found that it was a wiring problem. Thanks Seshadri and Gerry. I corrected the problem and my system was then auto squaring great. I changed my homing speed from 20 percent to 10 percent to see what effect it would have. It then duplicated another problem that was discussed in this series of posts. At 10 %, the homing didn't back off the limit switches enough, and after the A axis homing stopped, the Y moved close to the final position and would keep going on and off resetting the limit switch fault in Mach3. I put the homing speed back to 20 % and the problem went away.