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pause button
« on: July 13, 2010, 04:56:18 AM »
i have small problem
in feedrate about 1500~2000 mm/Min ,When I press the pause button ,malfunctioning  and should do it again.
In other words ,i must press twice.
Where is the problem ?
my version is R3.042.020


Amir
**Even a clock that does not work is right twice a day**

Offline Hood

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Re: pause button
« Reply #1 on: July 13, 2010, 05:41:31 PM »
There have been times in the past that a double press was needed but I have not heard of any recent revisions with that issue.
Do you definitely have to press twice or could it just be it is taking a bit longer to feedhold due to the higher feedrate and you pressing twice makes it seem its needing the double press?
Hood

Offline BR549

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Re: pause button
« Reply #2 on: July 13, 2010, 09:23:54 PM »
Amir you may have to drop your look ahead down to 1 to get a faster pause.
Re: pause button
« Reply #3 on: July 14, 2010, 03:05:03 AM »
yes Hood. i need press twice in high feedrate, i dont have problem in low feedrate.

hi Terry
is it possible explain about "Look Ahead" ?

Amir
**Even a clock that does not work is right twice a day**

Offline Hood

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Re: pause button
« Reply #4 on: July 14, 2010, 03:33:50 AM »
Look ahead is on General Config page, set it to 2 or so and see if it helps.

Hood
Re: pause button
« Reply #5 on: July 14, 2010, 04:00:30 AM »
i know position for look ahead. but i dont know What does it do?
**Even a clock that does not work is right twice a day**

Offline Hood

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Re: pause button
« Reply #6 on: July 14, 2010, 04:41:42 AM »
Exactly as it says, it looks ahead in the code and takes it into account for planning.
I doubt that it will help for you though if you are certain that you have to press twice to get the feedhold to work.
Hood
Re: pause button
« Reply #7 on: July 14, 2010, 02:34:50 PM »
Quote
and takes it into account for planning
i dont understand your mean.

Amir
**Even a clock that does not work is right twice a day**

Offline Hood

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Re: pause button
« Reply #8 on: July 14, 2010, 02:46:37 PM »
The manual has a short explanation.
Hood

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Re: pause button
« Reply #9 on: July 14, 2010, 07:39:43 PM »
The look ahead also stacks the ouput buffer based partly on the look ahead size. The more look ahead the larger the buffer load to a point. That is why a large look ahead may take longer to respond to a feedhold. Where as a short look ahead responds faster.

(;-)