4th Axis Rotary Limit
23 Nov 2017 12:20 #102255
by timmert
4th Axis Rotary Limit was created by timmert
Hello
I have a question about the limit on a rotary axis.
I'm using a 4th axis that's setup as Angular. After some machining the axis wouldn't go forward (only reverse) without a warning. When I checked the limits of this axis it was setup at 3600.
So that means 10 full rotations. I can increase it to 9999 but that would only delay the problem.
At the moment I removed the limits for this axis in the INI file.
But will it remove any limit, or is there a default limit?
And how do I set it up to have a unlimited rotations?
I have a question about the limit on a rotary axis.
I'm using a 4th axis that's setup as Angular. After some machining the axis wouldn't go forward (only reverse) without a warning. When I checked the limits of this axis it was setup at 3600.
So that means 10 full rotations. I can increase it to 9999 but that would only delay the problem.
At the moment I removed the limits for this axis in the INI file.
But will it remove any limit, or is there a default limit?
And how do I set it up to have a unlimited rotations?
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23 Nov 2017 17:32 #102265
by Todd Zuercher
Replied by Todd Zuercher on topic 4th Axis Rotary Limit
I believe that if you remove the limits the limit will be the number that a 64-bit float can handle. (Someone please correct me if I'm wrong.)
It might be advantageous for you to configure the rotary as a "wrapped rotary"
linuxcnc.org/docs/html/config/ini-config...s__lt_num_gt_section
It might be advantageous for you to configure the rotary as a "wrapped rotary"
linuxcnc.org/docs/html/config/ini-config...s__lt_num_gt_section
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24 Nov 2017 18:12 #102306
by andypugh
Replied by andypugh on topic 4th Axis Rotary Limit
9999 delays the problem a little while.
99999 delays it for 10x as long.
10E300 delays it for the lifetime of the universe and beyond.
99999 delays it for 10x as long.
10E300 delays it for the lifetime of the universe and beyond.
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