How to add more axes to axis gui?

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20 Oct 2020 19:08 #186729 by aleksamc
I want to add one more axis to GUI Axis. I have x,y,z,a but I need one more f (fore example), which coordinated will be displayed in DRO window.

And also I wonder, how to operate it from keyboard))))

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24 Oct 2020 21:21 #187135 by tommylight
You can add axis as usual by editing the hal and ini files, a simple copy/paste will do just fine and editing the AXIS and JOINT numbers, also adding that axis to GEOMETRY and DISPLAY and TRAJ sections in the ini file.

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10 Dec 2020 21:33 #191606 by aleksamc
I tried to add axis "L" but got error

trivkins: ERROR: Invalid character 'L' in coordinates


I want to add some axis that will move separetly from X axis but on the same rails.
X axis will move milling and L axis (name could be default) will move laser.
There will be also rotary axis A.

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10 Dec 2020 21:43 #191607 by Todd Zuercher
The Axis UI will support up to 9 axis. Possible axis letters are X,Y,Z,A,B,C,U,V,W. A,B,C are normally rotary, but U,V,W are normally parallel axis to X,Y,Z respectively. So a best choice for your extra axis would be U.

Are you using Linuxcnc v2.8 or later? There were some changes in how axis are configured since the intro. of v.2.8.

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11 Dec 2020 06:36 #191644 by aleksamc
Yes, I have last linuxcnc update. Thank's for your unswer, Todd, I will try today.

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11 Dec 2020 15:16 #191668 by aleksamc
I've succesfully added one more axis U to hal and ini files but I doesn't see it in gui axis, only axes x,y,z,a.

How to add it to gui "axis"?

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11 Dec 2020 16:37 #191673 by tommylight
Display section and traj section in the ini file.

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11 Dec 2020 17:26 - 11 Dec 2020 17:28 #191680 by aleksamc
I found mistake in [TRAJ]
COORDINATES = XYZAL, L is not used now.

But in [DISPLAY] section I don't see anything useful, except
GEOMETRY = xyz

I should use
GEOMETRY = XYZAU instead.
I will try tomorow one more time with this.
Last edit: 11 Dec 2020 17:28 by aleksamc.

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11 Dec 2020 18:02 #191685 by tommylight


I should use
GEOMETRY = XYZAU instead.
I will try tomorow one more time with this.

Yes.

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12 Feb 2021 11:37 - 12 Feb 2021 23:17 #198518 by aleksamc
I successfully added U (linear) axis to GUI that is on one rail as Y and it can move much faster than other axes. I will use it for laser.

But unfortunatly I have problem with feed/speed processing using this axis.
When I make motion with it and Y axis simultaneously I get very slow motion. At the evening I hope to load some video. But without U axis movement is as given.

I got such problem with A (rotary) axis in previous.
Does it's problem of inverse kinematics?

Does it's possible to edit trivkins kinematics without recompiling files. Where is this kinematic located on Debian?
I found trivking on github
What is difference and what does it's mean (In CASE logic from line 61:
joints[i] = pos->tran.x;
and
joints[i] = pos->u;

Also when I moved XYU axes simultaneously (they are moved with feed 1300mm/min) I got ferror of axis X (joint 0). I don't anderstand why because X can move much faster.
I use servomotors and 7i77 mesa board.


After some research:
I've changed U axis to V (as it possibly somehow corresponds to Y) but it doesn't change anything. Feeds are 850 from added 30000.

Also I tried how this axis work in junction with X axis. It also very and very slow! It can't be used for laser and more over it brakes all my supposing about 5 axis movements on this machine(((( How this can be solved?

My postprocessor can work only in G90 mode, so G93 will be hard to use
Last edit: 12 Feb 2021 23:17 by aleksamc.

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