On 12/10/16 22:30, Sag ich Dir nich
wrote:
is there a way to tell the program to automatically
stop feed(or the program) if the spindle stalls? (or if it is a
specific value rpm under target RPM)
When the PSU is overloaded, it shuts off for a second and
that could cost me an endmill
also:
is there a PID value/pin i can send to a pyvcp module to
create a spindle load meter?
The commonly used solution is the 'spindle-at-speed' one
https://github.com/machinekit/machinekit/search?utf8=%E2%9C%93&q=spindle-at-speed&type=Code
It has some problems if your spindle only has a crude Z index,
fluctuations in the read speed can cause it to
remain untriggered unless you use a large margin value, but even
then it would protect against a stall.
Make sure the output is filtered and averaged as far as possible to
remove the spikes
The xml files will show examples of the speed meter and
spindle-at-speed LED commonly used in pyVCP panels
(especially on lathes)
Am Sonntag, 9. Oktober 2016 19:07:54 UTC+2 schrieb Sag ich Dir
nich:
thank you, that worked :)
Am Samstag, 8. Oktober 2016 14:01:07 UTC+2 schrieb Sag ich
Dir nich:
thanks ill try that
Make sure none
of the motor drivers are enabled until the
software is
configured and running. There is an ESTOP chain
and machine power
output available on the CRAMPS board already, and
you can use any of the
available GPIO to drive an enable output wired to
the appropriate axis
enable pin in HAL.
no i mean when the spindle is running it
stutters sometimes, i think it may be because the
encoder is not 100% working or some electrical
interferences.
the real problem is when i power the machine
on, the spindle is at maximum speed until i start
the software (i am going to solve this with a
relay board and gpio pins)
Am Samstag, 8. Oktober 2016 13:18:16 UTC+2 schrieb
Charles Steinkuehler:
On 10/7/2016 2:35 PM, Sag ich Dir nich wrote:
> Hello,
>
> i got my closed loop spindle kinda working
but everytime i start the machine i
> have to re-set the pins to input and qep, how
do i better start optimizing P,I
> and D?
I usually make a shell script to configure pin
modes (setup.sh) , and
call it early on in the HAL file.
> Also sometimes the motor stutters for a split
second
Make sure none of the motor drivers are enabled
until the software is
configured and running. There is an ESTOP chain
and machine power
output available on the CRAMPS board already, and
you can use any of the
available GPIO to drive an enable output wired to
the appropriate axis
enable pin in HAL.
--
Charles Steinkuehler
[email protected]
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