Advanced Search

Hello everyone. This is the first time i'm using linuxcnc and i have a lot of questions. I've retrofited dozens of cnc machines with mach3, but none with linuxcnc. This time i need help. I've installed and configured ethercat with kollmorgen s700 drives. I've made a window to read input and output states. and it works. My problem is that i don't know how to display the position of the axes, the x,y and z positions are always at 0 in the main window. Any ideas? I've looked for information in the forums but i guess the answer is so simple that no one has written it down. Thank you in advance.

Translated with DeepL.com (free version)

spam removed

Thanks for sharing!

Seems to me that you are mixing two ways of setting overrides, ie direct-value / counts.

Hey all,

I ran in the following problem:

cnc@raspberrypi:~ $ designer -qt=5
Qtvcp python plugin found: /home/cnc/.designer/plugins/python/qtvcp_plugin.py
[DEFAULT][INFO]  Logging to: /home/cnc/default.log (logger.py:106)
tool_mmap_user(): tool mmap not available
poll(): continuing without tool mmap data
[DEFAULT.QTVCP.LIB.SYS_NOTIFY][WARNING]  Desktop Notify not available:: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Notifications was not provided by any .service files (sys_notify.py:71)
link (updating variable file): No such file or directory
link (updating variable file): No such file or directory
Segmentation fault

I've followed the QtVCP installation progress and linked the qtvcp_plugin.py but I get this error when starting the designer.
The designer loads without any problems when the qtvcp_plugin is not linked.

Did this occur to anyone before me? Or does anyone has an idea how to resolve this?
 

It is relatively simple to adjust axis limits during run time using the 'ini' hal pins. However this only allows adjusting the extents of the box that defines the overall work space of the machine. ie you will not be able to cut a cube out of a corner, let alone cut a cube out of the inside of the work space.
Axis gui has a feature that checks the extents of the loaded gcode for limit violations which could probably be modified to check for exclusion zones but this will not include jogging or mdi commands.

[edit]

As an alternative you could monitor the axis positions in hal and stop motion if they enter an exclusion zone. This would work for auto, manual and mdi modes but would not give you a warning before the machine actually reaches those limits.

ok, so I would have to look into the handwheel hal to find some accelleration vaues to play with?

Yes, you're right, the problem is with languages/localizations. I installed it in English, there are no problems, it works perfectly. Localization is not necessary for operation. Thanks a lot, Tommy.

.Trying again

Sorry, this photo didn't attach to the previous submission. It was a bit big.
Cheers,
David

OH My. How quickly I forget things.
Here are a couple of photos of how it connects. I had them in my archive. You need to take off the rear spindle motor covers. The incoming hydraulic pressure hose comes up the rolling conduit. Then you get the birds nest shown. You can see how it splits to the Y and Z tool holder retraction. The pipe you see sticking out of the casting when you have the hose disconnected is free to spin easily. You can see the drilling hole through the top slide is big enough for the pipe fitting to travel through. So I'm fairly sure that if you disconnect like this then you can just pull the whole quill assembly out through the front as I described previously, being careful not to break that pipe. It looks like the long length of pipe simply cantilevers off the rotary joint in the Y quill. I remember thinking it feels like it when I turned it. The hoses hanging around there are all that holds the pipe from spinning when the hoses are connected!
I don't know how to pull the Y quill out. There is nothing to grip on. I could fit a tool holder perhaps, but pulling on that pulls on the retraction claws. Maybe a gentle pull to see if it works.
The other small tube is a sight glass tube for the very front gear selector that engages the Z spindle. So it isn't anything to do with the hydraulics or the Vogel lube system. That gear case is filled via the front orange filler plug. On mine the very long drilling to the sight tube was clogged and it took a lot of rodding out to fix. It's hard to read through the sight hole on the cover when fitted, and a small tilt on the machine would make it misread. I would simply drain and refill the gearbox with the amount in the manual. If you take it's top cover off you can't see the oil. It's down below the gearset in a cavity, but the lower part of the gear dips into it.
Cheers,
David

The 7i96s  looses some inputs to run MPGs. I would go with a Mesa 7i76E or the EU version. It has two MPG inputs. Perhpas PCW will be able to add a third. With the 7i76E the machine will run as fast as you can wind the MPG. There is a parllel port example in the docs so its pretty easy to adapt to the mesa card as its just changing the pin names.

I'd probably just change:

        rtapi_print_msg(RTAPI_MSG_ERR, "No parport registered at 0x%x. "
                    "This is not always an error. Continuing.\n", base);

to

        rtapi_print_msg(RTAPI_MSG_WARN, "No parport registered at 0x%x. "
                    "This is not always an error. Continuing.\n", base);

 

Quicker than editing a post

Some great ideas here
github.com/KurtJacobson/RF45-config

I use a modified version of the mpg.comp in my mill setup.

And cos I'm not the biggest fan of running multi core cables I use a Mesa 7i73 for my pendant.

The Linuxcnc docs have some good information on setting up hand wheel encdoers (I think it deals with using the encoder module for the parallel port, but you can just ignore that bit and just copy the bits where the signals are sent), but you'll probably want to allow a couple of inputs to define the step size as well.

Not a bad read here:
www.anderswallin.net/2006/11/jogging-emc2/#more-107