Jogging at a certain angle (lathe mode)?

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3 years 1 month ago #280429 by Cant do this anymore bye all
I’m working on the Raspberry Pi so probably won’t be any good to you unless you’re using one as well.

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2 years 10 months ago #287772 by TurboStreetCar
Had a chance to work on this a little bit.

I installed 2.9.1 and have access to the sample that works now. I guess it wasn’t included on the older version of LinuxCNC I was using.

Anyway, in my application, I have a lathe with two hand wheels.

In the “JOG” page the axis.jog-enable pins are true so the hand wheels are enabled to jog the axis.

I’d like to be able to press a button to enable the angle jog, but I believe I’ll have an issue with the axis.jog.enable.

If axis.jog-enable remains active, and I use a MUX to switch between the anglejog counts, and the handwheel regular jog counts, it will reposition the axis when the count change takes place.

The axis.jog-enable would need to be pulled false before the change from angle counts to straight handwheel counts occurs and re-enabled after.

Is there a good way to cycle the axis.jog-enable pin when switching between standard MPG movement and anglejog movement?

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2 years 9 months ago #290080 by vmihalca
I have the same issue as you're describing. I have a lathe with 2 handwheels, I am using two angle jog components with the second one's angle being offset at 90 deg from the first one. This way I make sure that the movement of the X mpg is perpendicular to the movement of Z mpg.
However, when switching from normal jog to angle jog, the axes jump to a different position due to different jog counts. Have you managed address this issue?
The only idea that I have is to create a custom component based on the original anglejog, that takes two mpg inputs and handles internally this difference in the counts. But for now I don't feel comfortable in writing a new component, especially one that's this complex.
Let me know your thoughts and your latest findings.
Cheers,
Vasi

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2 years 9 months ago - 2 years 9 months ago #290081 by vmihalca
How about when having two MPG's with movements shifted at 90deg from the other one? Would it make sense to use two angle jog components or to create a new component for that case? 
Last edit: 2 years 9 months ago by vmihalca.

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2 years 9 months ago #290082 by vmihalca
First of all, thanks for your awesome work!
I tried using your component but I am facing some issues, I would be grateful if you could give some directions.

I have a lathe with 2 handwheels, I am using two angle jog components with the second one's angle being offset at 90 deg from the first one. This way I make sure that the movement of the X mpg is perpendicular to the movement of Z mpg.
However, when switching from normal jog to angle jog, the axes jump to a different position due to different jog counts.

The only idea that I have is to create a custom component based on the original anglejog, that takes two mpg inputs and handles internally this difference in the counts. But for now I don't feel comfortable in writing a new component, especially one that's this complex.
Let me know your thoughts on this matter.

Cheers,
Vasi

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