a simple rotary encoder for my mill. How?
02 Jan 2011 16:51 #6371
by mike303
a simple rotary encoder for my mill. How? was created by mike303
hi,
i have a simple rotary encoder with phase A/B and a integrated switch. the encoder has 32 steps per round.
i connected it to parport0 pin 10,11,12 and GND. in MACH3 under windows all works but with EMC i have no luck with HAL.
also i can't find a documentation about this (or i can't understand this)
my plan:
switch pressing => axsis select (x,y,z,x,y,z...)
turn the encoder => actual axsis is moving
can any one explain/show how this simple setup is done in custom.hal
i have a simple rotary encoder with phase A/B and a integrated switch. the encoder has 32 steps per round.
i connected it to parport0 pin 10,11,12 and GND. in MACH3 under windows all works but with EMC i have no luck with HAL.
also i can't find a documentation about this (or i can't understand this)
my plan:
switch pressing => axsis select (x,y,z,x,y,z...)
turn the encoder => actual axsis is moving
can any one explain/show how this simple setup is done in custom.hal
Please Log in or Create an account to join the conversation.
02 Jan 2011 18:10 #6373
by PCW
Replied by PCW on topic Re:a simple rotary encoder for my mill. How?
wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Hooking_Up_A_MPG_Pendant
is similar but looks like it uses a selector switch connected to three parallel port input bits for
axis selection
is similar but looks like it uses a selector switch connected to three parallel port input bits for
axis selection
Please Log in or Create an account to join the conversation.
02 Jan 2011 18:33 #6374
by mike303
Replied by mike303 on topic Re:a simple rotary encoder for my mill. How?
i known this docu site but i don't understand it complete. i use it like described but no axis is moving:
loadrt encoder num_chan=1
loadrt mux4 count=1
addf encoder.capture-position servo-thread
addf encoder.update-counters base-thread
addf mux4.0 servo-thread
setp axis.0.jog-vel-mode 0
setp axis.1.jog-vel-mode 0
setp axis.2.jog-vel-mode 0
setp axis.0.jog-vel-mode 1
setp axis.1.jog-vel-mode 1
setp axis.2.jog-vel-mode 1
setp encoder.0.x4-mode 0
setp mux4.0.in0 0.1
setp mux4.0.in1 0.01
setp mux4.0.in2 0.001
setp axis.0.jog-enable TRUE
setp axis.1.jog-enable TRUE
setp axis.2.jog-enable TRUE
net pend-scale axis.0.jog-scale <= mux4.0.out
net pend-scale axis.1.jog-scale
net pend-scale axis.2.jog-scale
net mpg-a encoder.0.phase-A <= parport.0.pin-10-in
net mpg-b encoder.0.phase-B <= parport.0.pin-11-in
net pend-counts axis.0.jog-counts <= encoder.0.counts
net pend-counts axis.1.jog-counts
net pend-counts axis.2.jog-counts
also i can't find a hint to simple select the 3 axis with one button (each press step to the next)
loadrt encoder num_chan=1
loadrt mux4 count=1
addf encoder.capture-position servo-thread
addf encoder.update-counters base-thread
addf mux4.0 servo-thread
setp axis.0.jog-vel-mode 0
setp axis.1.jog-vel-mode 0
setp axis.2.jog-vel-mode 0
setp axis.0.jog-vel-mode 1
setp axis.1.jog-vel-mode 1
setp axis.2.jog-vel-mode 1
setp encoder.0.x4-mode 0
setp mux4.0.in0 0.1
setp mux4.0.in1 0.01
setp mux4.0.in2 0.001
setp axis.0.jog-enable TRUE
setp axis.1.jog-enable TRUE
setp axis.2.jog-enable TRUE
net pend-scale axis.0.jog-scale <= mux4.0.out
net pend-scale axis.1.jog-scale
net pend-scale axis.2.jog-scale
net mpg-a encoder.0.phase-A <= parport.0.pin-10-in
net mpg-b encoder.0.phase-B <= parport.0.pin-11-in
net pend-counts axis.0.jog-counts <= encoder.0.counts
net pend-counts axis.1.jog-counts
net pend-counts axis.2.jog-counts
also i can't find a hint to simple select the 3 axis with one button (each press step to the next)
Please Log in or Create an account to join the conversation.
02 Jan 2011 18:59 #6376
by PCW
Replied by PCW on topic Re:a simple rotary encoder for my mill. How?
It may not work if you dont have the jog scale set correctly (the mux inputs right). For example if the mux select pins were both high, I bet you get 0 for the jog increment
You can back-trace through the operation with HAL meter (I'd look at encoder.0.counts first)
For selecting axis by pushbutton , maybe some HAl guru can suggest an elegant method
You can back-trace through the operation with HAL meter (I'd look at encoder.0.counts first)
For selecting axis by pushbutton , maybe some HAl guru can suggest an elegant method
Please Log in or Create an account to join the conversation.
02 Jan 2011 19:25 #6377
by andypugh
Replied by andypugh on topic Re:a simple rotary encoder for my mill. How?
mike303 wrote:
I spent about half an hour writing an annotated hal file for you, to do what you want. Unfortunately the forum logged me out half way through, and lost it.![:angry: :angry:](/media/kunena/emoticons/angry.png)
So, here it is, probably full of errors, and without the annotation. Sorry but my enthusiasm has dwindled.
You might want to add a oneshot component between the button input pin and the updown component.
www.linuxcnc.org/docview/html/man/man9/oneshot.9.html
also i can't find a hint to simple select the 3 axis with one button (each press step to the next)
I spent about half an hour writing an annotated hal file for you, to do what you want. Unfortunately the forum logged me out half way through, and lost it.
![:angry: :angry:](/media/kunena/emoticons/angry.png)
So, here it is, probably full of errors, and without the annotation. Sorry but my enthusiasm has dwindled.
loadrt encoder num_chan=1
loadrt select8 count=1
loadrt updown count=1
addf encoder.update-counters base-thread
addf encoder.capture-position servo-thread
addf select8.0 servo-thread
addf updown.0 servo-thread
net encA encoder.0.phase-A <= parport.0.pin-10-in
net encB encoder.0.phase-B <= parport.0.pin-11-in
net enc-counts encoder.0.counts => axis.0.jog-counts axis.1.jog-counts axis.2.jog-counts
net jog-button updown.0.countup <= parport.0.pin-12-in
net jog-choice updown.0.count => select8.0.sel
net jogX axis.0.jog-enable <= select.8.0.out0
net jogY axis.1.jog-enable <= select.8.0.out1
net jogZ axis.2.jog-enable <= select8.0.out2
setp encoder.0.counter-mode 1
setp updown.0.max 2
setp updown.0.min 0
setp updown.0.wrap 1
setp axis.0.jog-scale 0.1
setp axis.1.jog-scale 0.1
setp axis.2.jog-scale 0.1
You might want to add a oneshot component between the button input pin and the updown component.
www.linuxcnc.org/docview/html/man/man9/oneshot.9.html
Please Log in or Create an account to join the conversation.
02 Jan 2011 20:22 #6379
by mike303
Replied by mike303 on topic Re:a simple rotary encoder for my mill. How?
Thank You!
Thats was a really helpful post! Now it's working.
Where can i find how to write a HAL-file like this?
'updown' , 'select8', 'net' ore 'setp' are HAL-components?
It looks like a electronic circuit.
Without knowing about the word, you can't learn the language...
Thats was a really helpful post! Now it's working.
Where can i find how to write a HAL-file like this?
'updown' , 'select8', 'net' ore 'setp' are HAL-components?
It looks like a electronic circuit.
Without knowing about the word, you can't learn the language...
Please Log in or Create an account to join the conversation.
02 Jan 2011 21:36 #6381
by andypugh
Replied by andypugh on topic Re:a simple rotary encoder for my mill. How?
mike303 wrote:
www.linuxcnc.org/docview/html/
Some basic instructions on how to put them together are here:
www.linuxcnc.org/docview/html/hal_basic_hal.html
If you want a more complicated or special function it is quite easy to write them if you know some C:
linuxcnc.org/docs/html/hal_comp.html
wiki.linuxcnc.org/emcinfo.pl?Eagle2HAL
(I am not sure that is currently useful, though).
You can find a list of all the hal components in the "Realtime components and kernel modules" section of this page:Where can i find how to write a HAL-file like this?
'updown' , 'select8', 'net' ore 'setp' are HAL-components?
www.linuxcnc.org/docview/html/
Some basic instructions on how to put them together are here:
www.linuxcnc.org/docview/html/hal_basic_hal.html
If you want a more complicated or special function it is quite easy to write them if you know some C:
linuxcnc.org/docs/html/hal_comp.html
It is very similar, in fact it is so similar that people have found ways to convert HAL files into Eagle schematics to visualise them:It looks like a electronic circuit.
wiki.linuxcnc.org/emcinfo.pl?Eagle2HAL
(I am not sure that is currently useful, though).
Please Log in or Create an account to join the conversation.
Time to create page: 0.143 seconds