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Author Topic: Plasma Anti-dive function. Seems not to work  (Read 1888 times)

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Plasma Anti-dive function. Seems not to work
« on: August 29, 2013, 05:51:22 PM »
Hello,

Recently read a post about the Mach3 Anti-dive function. http://www.machsupport.com/forum/index.php/topic,16169.0.html

But it seems not to work just like BR549 said. Even programming it to 100% of the actual feedrate, the machine still move the Z axis up and down during the cut by the THC.

Someone with experiencie with this command?

Added it to my Plasma Screen, seems to be a nice feature to have if it works. Attached the screen for convenience.

Thank you,

Offline BR549

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Re: Plasma Anti-dive function. Seems not to work
« Reply #1 on: January 02, 2016, 03:46:57 PM »

(;-) TP
« Last Edit: January 02, 2016, 03:48:56 PM by BR549 »

Offline Davek0974

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Re: Plasma Anti-dive function. Seems not to work
« Reply #2 on: January 02, 2016, 04:26:26 PM »
Even programming it to 100% of the actual feedrate, the machine still move the Z axis up and down during the cut by the THC.



It would do that - setting 100% is telling it you are ok at any speed.

Mine is set at 70% i think - if my code commands a feed rate of 4000mm/min but Mach3 computes it needs say 2000mm/min or 50% of my commanded rate for a corner it will stop the THC for that contour and resume it as soon as the machine accelerates to more than 70% again.
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives

Offline BR549

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Re: Plasma Anti-dive function. Seems not to work
« Reply #3 on: January 02, 2016, 05:40:47 PM »
Hiya Dave My bad I accidently activated a very old post from 2013.

Offline Davek0974

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Re: Plasma Anti-dive function. Seems not to work
« Reply #4 on: January 03, 2016, 04:17:33 AM »
Oops ;)

Ah well, needed answering :)
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives