Hi Matt,
yes, pretty much. since if I use it as a "homing device", it won't go
past there anyway.
So yes, I think that is what I'd want it to do, use it as home input
On 11/6/20 1:48 PM, Matthew Herd wrote:
I think the question you’re asking is how to use the limit switch as a home
input. On my bridgeport mill, a single limit switch trips on the min and max
limits. I also use this for home. I do this by assigning the same hardware
pin to axis.0.home-sw-in (or axis.1, axis.2, etc) axis.0.neg-lim-sw-in, and
axis.0.pos-lim-sw-in. So you just need to assign the same hardware pin as your
limit switch to home as well as the limit switch input for axis.
Hope this helps!
Matt
On Nov 6, 2020, at 3:23 PM, R C <cjv...@gmail.com> wrote:
Hello Leonardo,
On 11/6/20 1:01 PM, Leonardo Marsaglia wrote:
Hello Ron,
If I understand correctly you are using your limit switches only without
any soft limit (hardware limit). Whenever a limit switch is triggered the
motion will stop immediately and the only way to recover from that is to
turn on the override limits option.
ah, yes, I have not set any soft limits in the new configuration yet. Also
wonder how to do that.
For example, I have a mill, also a sherline, without limit switches which I "return
home" every time I am done, and then home the axes when I start.
I thought I could use the limit switches also as homing switches.
I'll try that, set them as close to the hard limit as possible. (However, it seems that
the "hard limit" doesn't seem that useful then.)
(tha is why I thought those switches could be used to actually home the machine, use them as a
reference, sort of a "go to" feature... thinking when the switches get triggered,
linuxcnc would "think", ok I am home now.
thanks,
Ron
I don't know if understand you right, but you would never want the machine
to trigger a hard limit in normal conditions, you need to set up your soft
limits as close as possible (given your machine's necessities) of the hard
limit.
Leonardo Marsaglia
El vie., 6 nov. 2020 16:03, R C <cjv...@gmail.com> escribió:
Hello,
I am trying to configure the limit switches in linuxcnc, I think I can
use them as home switches too.
The switches get tripped, when teh cross slide is as close to the chuck
as it can be and as close to the user/operator as possible.
I have it setup so that for example the x-axis limit switch will stop
the stepper, but I'd expect to be able to jog in the opposite direction,
which
it doesn't seem to do.
How do I set up the limit switches so that theydo stop the movement of
the axis but still will allow to move an axis in the opposite direction
as the one that triggered the switch?
thanks,
Ron
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