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If you go the parallel port route, you will probably find you need to run at least two parallel ports. Encoder inputs can eat up a lot of input pins (3 axis would require 6 input pins.) But when you start to look at multiple parallel ports and buying add on parallel port cards, Mesa starts to look much more appealing. For example a Mesa 5i25/6i25 doesn't cost much more than a 2 port parallel port card, but is much more capable, and you know it is going to work with Linuxcnc, vs the crapshoot compatibility of buying a multi parallel port PCIe card. For example the last PCIe parallel port card I used only sort of half worked until I modified the breakout board by adding some external pull up resistors to some of the pins.

OK, thank you very much.

Your drives appear to be cia402 compatible devices.
If you start here
forum.linuxcnc.org/ethercat/45336-etherc...-how-to-step-by-step
clone the cia402.comp and follow the cia402 examples and be sure to set the scale in pulses per device units.
Eg I use metric units and have a drive with 4000 encoder pulses per revolution on a 5mm pitch ball screw so my scale is 800 (pulses per mm)
Also check the notes about what is said about ini file settings for the joints.
The pin for the encoder Is joint.N.pos-fb  which is documented here linuxcnc.org/docs/stable/html/man/man9/motion.9.html
but you should see the DRO's move if you lean on your motor.

Thanks for the reply,  I didn't have x on center , that sorted the direction issue. The speed fluctuations iv noticed when I am manually changing the spindle speed in the axis gui the 10v analog input is rock solid. Once the machine is in CSS and every time it changes speed the voltage drops before coming up to the correct voltage. This seems to be my issue. The more speed corrections when the axis is moving , the spindle goes so low it nearly stops. But obviously once the voltage goes back up it goes to the correct speed. Any ideas why the 10v signal drops so low on every speed change in CSS ?

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.

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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