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Author Topic: Travel speed  (Read 11509 times)

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Offline Hood

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Re: Travel speed
« Reply #20 on: September 06, 2010, 05:42:17 PM »
Do you see the green LED surrounding the CV Mode?

Hood

Offline Hood

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Re: Travel speed
« Reply #21 on: September 06, 2010, 05:45:00 PM »
Heres where I mean.
Hood
Re: Travel speed
« Reply #22 on: September 06, 2010, 05:48:31 PM »
Hood
No that is not green it's black like the dwell led

Dennis

Offline Hood

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Re: Travel speed
« Reply #23 on: September 06, 2010, 05:54:56 PM »
That is likely your problem.
When in exact Stop mode the axis has to accelerate and then slow to a stop for each line of code. If the moves are long then its not an issue but if they are short moves you would need very fast acceleration to get up to the commanded feedrate for each line.
Setting to CV (G64) will lilkely help a lot, setting a higher acceleration (if possible) in motor tuning may also help.

At the Velocity you have(750) in motor tuning 25KHz kernel will be more than enough.

Hood
Re: Travel speed
« Reply #24 on: September 06, 2010, 05:58:34 PM »
Hood
So i am not sure what i need to do should i increase the velocity and the acceleration both and change a mach setting or ?


Dennis

Offline Hood

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Re: Travel speed
« Reply #25 on: September 06, 2010, 06:01:08 PM »
What I would do for a start is use CV mode. To do that either MDI G64 or best is to have G64 at the start of your code. Also change to CV mode ( G64 )on General Config page so that Mach starts default as CV mode.
Hood
Re: Travel speed
« Reply #26 on: September 06, 2010, 06:05:41 PM »
Hood
OK i will do just that also i just found something i stop the file and then clicked on the feed rate line typed in 600 it took it and now the machine is moving like i thought it should all along funny how you find thing's like that huh i got it going now thanks for all your help you and others are what makes this a great site.

Dennis

Offline Hood

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Re: Travel speed
« Reply #27 on: September 06, 2010, 06:08:33 PM »
If you still get issues shout back and I am sure we can get things running sweet :)
Hood
Re: Travel speed
« Reply #28 on: September 07, 2010, 12:42:53 PM »
Hood
I got the machine through at least the test file so i could see what the code is doing and now i want to get a part actually cut in metal i was using a rigid foam for a test.
So first question how high can i go with the velocity setting i have Mach set at 3500 kernel speed i upped the velocity to 950 because i was not sure of how high to take it the other thing i need is to find a realistic speed and feed chart all your help is greatly appreciated oh and the machine works great it's the speed of maching a part that's the issue.

Dennis
Re: Travel speed
« Reply #29 on: September 07, 2010, 12:45:56 PM »
Hood
One more thing i would like to say is i am running an earlier version of Mach i am afraid of updating it to the latest version as when i have done this in the past it screws up and i have a hell of a time go back to a version that worked so should i wait until Brian has the version 4 done ?

Dennis