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I just purchased 1N4148 diodes , 0,1μF capacitors , and 12-position switches , to build some multiplexed rotary switches. I have no idea if this is going to work, but this is where I will start.

Unfortunately, the information needed to accomplish this is scattered all over the internet, with no solid how-to guide for LinuxCNC. If I am successful, and I have the patience, I may make such a thing when the time comes.

Once I have that part figured out, I will move on to rotary encoders for feed and speed overrides. And then after that, matrix keyboards. Hopefully the 7i73 has enough inputs for all of this, because I do not want any HMI inputs connected to the 7i96s board - only sensors.

I have also read about Arduinos being used for this kind of thing. I have an R4 Minima that is capable of emulating a keyboard through its type-c port, so I may use that for buttons. I don't know yet if that's a good idea or a bad idea.

Hi Chris,
I noticed that my screen included a scroll button in the DRO section which I didn't want/need and this appears as if it maybe part of this change?

I was looking for "MACHINE_TYPE_HINT" in the documentation and via GIT, found a few references but none that indicated
acceptable values.
 

Salve,
Thank you so much for this new resource. I think i'll start playing around with it as soon as i get a Raspberry Pi. i wonder what is the maximum control frequency using this solution.
I see you are a professor. I'm currently a computer engineering student at UniCal. i wish there would be a similar project at my university .
Hope you do well. Thanks again.

Thanks for the reply, I do have a servo with feedback to control on the spindle so accuracy should be ok.

If you have a simple example of the INI/Hal file which can switch between velocity and orient that would be very helpful. I'm also trying to use orient for probing where the spindle rotates 90* for each touch.

Parameters can be changed with a hal setp command
 Note that dynamically changing the stepgen position scale
will result in following errors.

for the issue with second y and z axis being mixed up, this is because the ini axis numbering is off when it adds in the second y axis as axis 2, to fix this, also change the axis number in the properties editor. in your situation it should be set as follows to account for your second Y axis motor:

axisNumber 0 = X
axisNumber 1 = Y
axisNumber 2 = Y2
axisNumber 3 = Z
axisNumber 4 = B

like this below in the images:

   

   

   

   

   

   

yes there is not currently a preconfigured display option setup for xyzb.


however, you could run:

sudo editvcp probe_basic in terminal and make any edits on the apt installed version. if you are on the stable branch the changes will remain, if you are on the develop branch any changes will be overwritten when updates are pushed and you you subsequently run apt update.

if you would like to change the opening screen to the main tab, you can change it by doing the following:

open a terminal and enter the following:

enter your password and enter

Qtdesigner will open, if you wish to delete the status message label, simply click inside the white area anywhere and press the delete key.  This will delete the message label and its contents.

 


Alternatively if you would like to keep the message there but change the tab that is seen when starting probe basic, click the main tab button to change the display page, and save.  Close Qtdesigner and start probe basic as you normally would, this will now startup the program on the main tab and if opted to delete the status page message label widget it will also be gone.  this will reappear if you are on the develop version after any updates have been pushed but should remain edited if on the stable version as no new changes are pushed to the stable version branch.

Hope this helps!

Chris

Grotius, we should chat by email

timo

Thank you

Hi
The thing I want is being able to do some calibration on axes using hm2_7i90.0.stepgen.00.position-scale parameter dynamically.
How can I access to this parameter?
I tried to define a new halpin in my hal file by writing:
net stepScale_Axis_X hm2_7i90.0.stepgen.00.position-scale
But I get the following error:
./my_LinuxCNC_machine.hal:616: Pin 'hm2_7i90.0.stepgen.00.position-scale' does not exist

so if its pin is not available what can I do to access this parameter for example in my python code for qt designer.

Stepper system

3000 rpm is not all that high for Al, but still better than no torque .
( don*t ask! ; 1000 W, no gearbox and max. 6000 rpm )
Makes an 8mm cutter a good choice for my old benchtop machine.

The 16 mm endmill would be "happy" at approx. 3000 rpm , but some machines are not happy with a 16 mm endmill.

Is this a servo system or stepper system?

We need more info.