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Ok, so I sorta understand what is going on. searchvel set to 0 is supposed to work. It was in my file before, HOWEVER it causes my ethercat drives to reset repeatedly, apparently cause the home routine toggles enable. This is basically what was happing with the M3 pins, some manner of conflict.

So how do we get around this?

config files

hrm...

So i have no limit switches yet. i with the old servos and with these id just move the machine to the home position, then press the home all button in axis, and it would mark everything 0 and call it homed.

Now, I pressed home and the machine moved, at full rapid, into the end stops....

Because I didn't change anything at all in the ini since last time, I am confused.

What is the correct way to have the machine home without actually moving?

Also the machine z home offset is set to 110 at the top of the axis, but it slams down into the table. It also goes full rapid even if the rapid overide is 1% and the home approach speed is 1mm/m.

Clearly something is screwwy but i cant see it. I will add my INI and hall files in a moment.

You have a probe diameter set in the tool table?

Does your probe calibration correctly measure the calibration ring/pin used?

Are you correctly setting up your cam post processor?

Have you verified using mdi commanded moves to rule out based cam settings?

Is your axis calibration correct?

Perhaps this is the wrong place to post this but I am doing so incase someone thinks it may be within probe basic as the issue.

Problem: When I probe a corner of my 6-sided precision ground stock, and then run the tool path, the cuts are offset. At the probed Y side, the endmill is a few mm AWAY from the side not cutting and on the opposite side it is digging in a few mm causing a crash. It appears something similar is happening on the X side as well.

Machine: Taig CNC with linuxcnc 2.9.4 using probe-basic

Here is what I have done to debug:
1. Indicated my vise jaws, confirmed vise is in line with X and Y
2. Indicated my probe tip, made sure it is straight
3. redid probe basic probe tip calibration which results in a number in line with my other machines (I use the same aliexpress 3 axis probe)
4. confirmed the table is trammed, column is perpendicular to the table
5. Tested axis travel with a dial indicator mounted in-line with each axis. When I command movement of 12.7mm the indicator reads 0.5 inches so it appears the axis are travelling the correct amount (both X and Y)
6. Using fusion360, verified my endmill dimensions are correct (9.525mm), toolpath seems as usual, simulation looks correct

Additional information:
1. I added a screenshot of my 3/8 endmill on the side I probed, it is hard to tell but the endmill is about 2mm away from actually touching the side whereas it should be digging in 0.2mm into the side and cutting
2. added the start of my gcode file

Question: Do you all have any other suggestions on what I can try to do to debug the issue further? This is the only machine I have issues with. I have a linuxcnc lathe and tormach mill with pathpilot and both work correctly.

thank you. sorry don't see this thread. too difficult for me but i will try

What are the following error limits set for?

Do you lose packets?

That is, what is hm2_7i76e.0.packet-error-total?

Can you post your hal / ini files?

Do you have the usual optimizations:

isolcpus = last cpu in grub (isocpus=3 for a 4 core CPU for example)

IRQ coalescing off with Intel MACS

DKMS driver installed with RealTek MACs

Ethernet IRQ pinned to last processor
 

Can you try removing the "0x" part from the pdo entries in the xml file?

For example
"<pdoEntry idx="6040" subIdx="00" bitLen="16" halPin="cia-controlword" halType="u32"/>"
is working for my A6 servo driver

I reinstalled the full Linux, because I probably already messed everything up.
Now the configuration wizard worked right away and everything works fine.
Thanks again for your help.

I agree, but pretty good, non the less.
I am adding this one from our forum by Mozmck as i looked for it several times and could not find it, i am thinking this should be in the "computers and hardware" section, not in the "general LinuxCNC questions".
forum.linuxcnc.org/38-general-linuxcnc-q...ead-and-irq-affinity

Changing the PC would be my first choice as i can find used ones cheap, the "Enterprise edition" Dell or HP or Lenovo or Fujitsu have worked nicely for me, and so have some laptops like Lenovo T470, X1 yoga, Y370, but these are not guarantied to always work.
For now you can try isolating CPU's as plenty of members here had good results with it and it's easy to do
forum.linuxcnc.org/38-general-linuxcnc-q...idiot-s-guide#334498
Or if you want to dig even deeper:
forum.linuxcnc.org/18-computer/57219-lin...nel-parameter-tuning

Found another one
blog.loriowar.com/how-to-reduce-jitter-on-linuxcnc

Still, the counterweight would solve your existing issue, and not hard to implement.

Hello from Slovenia

I built a 3 axis CNC milling machine. To run it I use a PC and mesa 7i76eu. They work well but every now and then I get an following error. To minimize this I increased latency from 1000000 to 1500000. Following errors are now less common (sey aonce per two hours of running). It is not critical but still it is anoying to rehome the machine. Is there anything I can do to optimize the computer and mesa comunication so there will not be any following errors.

thank you,
Leon Dolničar

I dont think the weight is the problem maybe more that the ball screw is fast. 20mm per turn. I got a good quality rexroth ballscrew so I used it. Because of the faster screw I used a stronger stepper motor 12Nm nema34.