Author Topic: Finial switching over to Mach4 amd Ihave a few question.  (Read 156 times)

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Offline lab auto man

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Finial switching over to Mach4 amd Ihave a few question.
« on: January 21, 2019, 08:00:46 PM »
Hi,
I gave up waiting for a Mach 4 USBSS plugin and bought a ESS to switch over to Mach 4.  I first got Mach 3 running with the ESS with little trouble but I did notice that homing my X axis sounded a little different.  My X axis has a slave motor and I could not tell if they were both homing.  I did not know it this was a difference between the USBSS and ESS or if only one motor was homing.  I went a head and got Mach 4 up and running with the ESS and my X axis homing is the same.  In Mach 3 their was a check box in the configuration page where you could check to say if you want both motors homed.  It squares up the gantry.  Is there something I am missing in Mach 4 to tell it to do the same thing?

My second question has to do with the rotary tool path display. So far it is much better the Mach 3 but is there way to adjust the diameter of what is displayed?   I did very little rotor stuff on my cnc router in Mach 3 but want to do more with mach 4.  The tool path look correct but the proportion is not correct.  In CAM it is long and thin but when I load the G code it is short and fat?  I think it may run ok if I ran it. 
Thanks for any help,
regards,
Todd

Offline joeaverage

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Re: Finial switching over to Mach4 amd Ihave a few question.
« Reply #1 on: January 26, 2019, 08:59:58 PM »
Hi,
I don't have slaved axes so I can't answer definitively.

Slave motors are assigned to each axis on Configure/Control/Axis Mapping.

Each assigned slave motor will require its own Step and Direction pins and if you want to square the gantry each slave
will require its own home switch to complement the master home switch.

The gantry squaring routine is carried out by the ESS not Mach. Further details on how it works are probably best found
on the Warp9 site.

Craig
My wife left with my best friend...
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Offline joeaverage

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My wife left with my best friend...
     and I miss him!

Offline lab auto man

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Re: Finial switching over to Mach4 amd Ihave a few question.
« Reply #3 on: January 29, 2019, 05:42:51 PM »
Thanks Craig,

Now I have a rotary axis question for mach 4. I created some G code  in V carve to test the rotary axis.  My feed rate for my tool was 60 inch/min in v carve.  Mach 4 thinks it is 60 degree/min, to slow.

In mach 3 there was setting where you could tell mach it was a rotary job and it would compensate or adjust the speed.  Can I set that up in Mach 4?   Did I miss something in my setup?
I could make rotary tool in V carve software and crank the speed way up.
Thanks,
Todd

Offline joeaverage

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Re: Finial switching over to Mach4 amd Ihave a few question.
« Reply #4 on: January 30, 2019, 12:45:02 AM »
Hi,
I don't use a fourth axis as so can't answer your question definitely.

I have heard that many have had success with using inverse time mode, this is a modal Gcode setting,
not a Mach4 setting.

Look up G93 page 54 in "Mill GCode Programming" manual in the Mcah4 Docs folder.

Craig
My wife left with my best friend...
     and I miss him!