On Mon, 14 Dec 2020 at 15:06, Matthew Herd <[email protected]> wrote:
> I’ve had a chance to do some reading. In particular, I’ve been contemplating
> Jon’s approach and the spindle component. The manual is very interesting
> because the spindle component seems to include most of the functionality I
> need.
I have found that the "Spindle" manpage is wrong in some details, I
will attempt to fix it.
Also there is a real risk of a namespace clash with motion hal pins
since the 2.8 update, so it is probably worth using the "names"
parameter to rename the comp pins.
I suggest playing with it in an interactive hal session. See if the
inputs and outputs do what you want.
Open a terminal, and with linuxcnc not running:
halrun
loadrt spindle names=spindlegear numgears=2
loadrt threads
addf spindlegear.0 thread1
start
{You now have a very basic HAL system running realtime, and containing
only the spindle component.
Now you can experiment with the behaviour}
show pin
{Will show all the pins)
{Let's load a halmeter to look at the output}
loadusr halmeter pin spindlegear.0.output
{Now fiddle with inputs and outputs to see what happens. You can use
tab-completion to save typing}
setp spindlegear.0.scale.0 1
setp spindlegear.0.scale.1 8.3
setp spindlegear.0.select.1 1
setp spindlegear.0.commanded-speed 100
show pin spindlegear.0.forward
{and so on}
{when finished, or to start again}
exit
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912
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