Advanced Search

Ill give it a try. Thank You for the step by step.

Good evening gentleman,
I am almost done with my new setup (printnc "pro", mesa 7i76eu, probe basic, jianken ATC) and everything seems to be working now, except the tool length measurement.
When I start a measurement with G38.2.... and then press the toolsetter with a finger (just to test it), the system errors out with "probe tripped during non-probe movement".
So it recognizes that the toolsetter is triggered, but for some reason it thinks its the 3d probe...  

This is how my probe and tls signals are linked:

# --- PROBE-IN ---
net probe-in     <=  hm2_7i76e.0.7i76.0.0.input-08
# --- TLS-Normal-IN ---
net tls-in       <=  hm2_7i76e.0.7i76.0.0.input-09-not

addf or.probeortls servo-thread
net probe-in or.probeortls.in0
net tls-in or.probeortls.in1
net probe-tool or.probeortls.out
net probe-tool motion.probe-input

What am I doing wrong ?

Here is my full config...
github.com/SebastianMusser/LinuxCNC/tree/main

regards
Sebastian

Long story short.

The current machine is really not suitable for the most recent version.
Maybe if you elaborate on the issues we maybe able to provide a solution.
Usually if the machine is operating fine and doing the job without any issues there is no real need to upgrade.
There are many machines out there still running early versions of Linuxcnc without any issues.

if my math is right and I am reading ferror right, I am running 36000mm/m which works out to 600mm/s and an ferror of 5 (well 4.94ish, but close enough).

5/600 = .008333333 But I am running my loop at 500000 if I have configured things right so 2 round trips should be .001ish... makes me think that something else is up in that lag....

Does EtherCat time code movements so that multiple axis would all move at the right time to each other and be at the right place regardless of what LinuxCNC sees back as the time delay?

Thanks

Hi everyone,

I’ve read through a lot of forum threads and would like a sanity-check before I start converting a large manual lathe (≈ 7 m between centres, three controlled axes: X, Z and spindle) to CNC.

Outline: IPC running LinuxCNC  →  Beckhoff EK1100 EtherCAT coupler.

1) Spindle (big induction motor that must stay)
   • Ideal: EtherCAT-ready VFD.  
   • Fallback: keep the old VFD and drive it with ±10 V from an EL413x analogue-out.  
   • Right now I only need the spindle to reach the commanded RPM.  
     Do I really need extra feedback (index pulse or full encoder), or is open-loop ±10 V enough for a first-cut retrofit?
     I can add an EL5101 / EL5042 later if it saves headaches.

2) Linear axes (X, Z)
   • Replace the old drives with EtherCAT servo drives; current & velocity stay inside the drives, LinuxCNC closes the position loop.  
   • New linear scales will be fitted. Where should their signals go?
       – straight into the servo drives, or  
       – through a Beckhoff encoder terminal (EL50xx) so LinuxCNC sees raw position, or maybe both.  
   • I’m after whatever gives the most reliable closed loop without over-complicating wiring.

3) Limit switches
   • Where do people usually land these in an EtherCAT setup?  
       – dedicated digital-input terminal (EL1004 / EL1008),  
       – directly into the drive I/O and pass the state via PDOs,  
       – or something else?

4) Still unsure about
   • Pitfalls when driving an older VFD from a Beckhoff analogue-out terminal.  
   • Best practice for scale feedback on a long machine: drive only, EL50xx only, or split to both.  
   • EtherCAT servo brands that work well for retrofits (good low-speed torque, reasonable cost, easy integration).  
   • Cleanest way to wire limit switches in an EtherCAT chain.

Thanks a lot for reading. I’m grateful for any advice, success stories or warnings you can share!

Kind regards,
vformi

Hello, we have a machine with a rotary axis, in some corners the cutter does not reach the corner completely and makes a rapid movement on the rotary axis. I tried to reduce the error with G64 but lowering the P value makes it worse.

Machine is running analog servos, old yellow cap fanuc.

The error is consistent int the same place.
Attached a pic.

Thanks
 

Things I noticed in stable version .


Would it be possible to add a confirmation dialog box prompting the user before initiating another homing cycle .

When I run the program and want to pause it midway through the G-code execution to clean the machine from chips, it doesn't allow me to manually move the axis.
I believe the program should allow pausing, during which I should be able to manually move or return the axis. When I choose to resume the program, the machine should automatically return to the position it was in before the pause and continue execution from that point.
Also, if I stop the spindle and start it again, the speed is much lower than before.

When you're in the G-code editor, it's possible to start the program execution, but if you exit the editor, the program stops .