Kirk Wallace wrote:
> [snip]
> What about,
> "halui.spindle-override.counts (s32, in) - counts from an encoder for
> example to change SO"
> http://www.linuxcnc.org/docview/html//gui_halui.html#r1_2_15
>    
I believe that's only used by looking at the difference between the old 
count value and the new to get a delta value.  That delta is then used 
to change the setpoint.
> (I suspect it was designed for an encoder that doesn't wrap)
>    
Yes, it's meant for a standard quadrature encoder.
> Since I have an override knob I would not need the slider in AXIS, or I
> could have a switch to enable one or the other, with an indicator for
> which one is active.
>    
If it were possible, a switch would have the bad side effect of suddenly 
snapping the setting from one value to another as the control point is 
changed.  This is a specific case that the NIST folks should be avoided 
also :)  It's not possible though, there's no way to prevent any user 
interface from sending commands to the EMC task controller.
> How would one remove the override setting feature from AXIS?
>    
You could remove the code that creates the slider, and any code that 
assigns keyboard shortcuts to move the slider (I don't know that there 
are keyboard shortcuts for this)
> Maybe an incremental encoder would be better?
>    
Yes.  Connect it to halui.spindle-override.counts.  If you have an 
absolute encoder that also outputs gray code, just connect the two 
lowest bits to the incremental encoder inputs.

- Steve


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