Rotary Encoder

Hi @all,
it's WinterTime im trying to build something from my CNC for my CNC
My Question: Is it possible to use this cheap Rotary Encoder www.ebay.de/itm/Drehregler-Drehgeber-Rot...e:g:pIYAAOSwn25aD28N
with LinuxCNC with a extra ParPort Card, to move my X or Y or Z Axis in diffrent Speeds like 1 / 10 / 100 seperatly?

Thanks for replys,

Fritz

If you mean use this for a jog control, yes you can.
They are quadrature encoders and can be read by the encoder module in LinuxCNC

Since they also have a built in push button, you could perhaps use a single one for X,Y,Z
and use the pushbutton for axis select.

Note that like all mechanical encoders these have noisy output signals and may require
filtering the quadrature signals through a RC network or using the "debounce" component
in your hal file to clean up the signals.

Probably (if the output of it is an A-B quadrature signal, it should be pretty simple)

Thanks PCW, thanks Todd, nice to read your Posts.
Do you have an example?

For the very low level parts the hal wiring would be something like:

loadrt encoder
loadrt debounce cfg=3

addf debounce.0 base-thread
addf encoder encoder.capture-position servo-thread
addf encoder.update-counters base-thread

net rawquada parport.0.pin-10-in debounce.0.0.in
net rawquadb parport.0.pin-11-in debounce.0.1.in
net rawjogbutton parport.0.pin-12-in debounce.0.2.in

net cleanquada debounce.0.0.out encoder.0.phase-A
net cleanquadb debounce.0.1.out encoder.0.phase-B
net jogbutton debounce.0.2.out

@PCW i don't know how to handle this :/
I tried out this example from andypugh forum.linuxcnc.org/24-hal-components/637...for-my-mill-how#6377
it works but only with one Phase, don't understand why.
it also works only in one direction, The Button works also not.
When i test it with an Arduino it works all fine...

I have TB6560 4-Axis red Board where the Pins 10-13 are available, so i tought this must work... hmmmm...

Some fixes done.
I found, under a lot other things, thsi Panasonic Encoder
www.digikey.com/product-detail/en/panaso...16B/P12423-ND/637160

Following steps are working:
Push Button to select the Axis to move and Movement in + Direction but not - Direction

If you setp encoder.N.counter-mode 1, would explain your problems, set that to 0 (or leave that line out entirely as 0 is the default setting).

Here is what the man page for the software encoder says:
linuxcnc.org/docs/html/man/man9/encoder.9.html
encoder.N.counter-mode bit i/o Enables counter mode. When true, the counter counts each rising edge of the phase-A input, ignoring the value on phase-B. This is useful for counting the output of a single channel (non-quadrature) sensor. When false (the default), it counts in quadrature mode.

coool now it works fine, thanks Todd.

Now i have my second parallel card on the run *lucky . Is it possible to run an encoder on the first card, say with me on the controller, and run the second encoder on the second card? I would like to work with the first encoder as the stand is now and with the second encoder enter the step size, for example: 1/10/100
How do I combine the two encoders? I tried to read in the docs, but as a beginner I'm not really right there. are there any examples for this?

Regards Fritz