SheetCAM: Linear "A" axis >>

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05 Mar 2021 20:26 #201126 by robertspark
I am guessing the answer to this one, but I thought I'd ask

I have a 4 axis plasma....
X, Y, Y', Z and A

sheetcam treats rotary axis as linear axis.... so.... should I be setting the A axis as one of the other letters, such as UV or W?

I presume so, and then changing sheetcams postprocessor accordingly.

Thanks Rob

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05 Mar 2021 21:58 #201136 by newbynobi
No, do not do that.
XYZ and UVW are linear axis, ABC are rotary axis.

You need to adapt sheet am or the postprocessor or you will have a machine not conform to international and well known conventions.

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05 Mar 2021 22:30 #201141 by robertspark
sheetcam rotary axis works as a linear axis. it ain't going to change....


explained around 4:10

if the mountain won't go to Mohammed, Mohammad will need to go to the mountain...

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05 Mar 2021 22:54 #201145 by pippin88
Brief look at video:

It talks about not resetting to zero when it wraps around 360 degrees.

I think their phrasing is poor. A axis is not linear.

forum.linuxcnc.org/10-advanced-configura...4-rotary-axis-limits


What have you actually tried?

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06 Mar 2021 09:14 #201164 by newbynobi
I have taken also a look, As far as I do see it, SheetCam is using A axis as rotary, like it should be!
The say in the video, that you need to set your units per Revolution in the video is is set to 360 per revolution.

I am not able to follow your problem.

Norbert

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07 Mar 2021 01:07 #201243 by andypugh
I moved this, there is a chance that Les (Mr SheetCAM) might see it here.

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07 Mar 2021 07:01 #201260 by robertspark

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