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Why bring in Twincat?

Be careful because it is configurable for twincat Nc task axis setup is axis lag watching possible to disable and there are any running speed possible to get... I think they have 7phase generator to control to axis movement which is probably more powerfull then lcnc trajectory generator ... They have native ec drivers for they native hardware .. but I am not specialist, I have just 15y of experiences which is nothing...

I know just about the single cycle lagging but there is possibility of having the DC timing problem which can cause the f error during high speed .. therefore is great practice to take DC config of slave take directly from the TC3...

I have problems with ferror too but they were caused by servo setup, dc config and slave timing setup... I have ran at 250us well 4axis 

It's a conclusion from the work done here

start from maybe two minutes in.
I did a lot of measurements, not reported here.
 

Set W5 jumper to normal operation = down, power cycle the PC, and the run

sudo mesaflash --device 5i25t --readhmid 

and post the results here

I'm interested in this as well.  I have spent many hours trying to get > 11-12 m/min smooth motion on a large format router without joint following errors and/or jerky motion.  Using the old control or TwinCAT CNC with the same servo driver config works fine at 30 m/min.

I'm no expert on LCNC internals but if RTAPI_TASK_PLL_SUPPORT is defined in linuxcnc-ethercat lcec_main.c then it appears that syncronization is attempted between the ethercat application cycle and LCNC with a max error of one app period...maybe this is where Hakan is getting the potential extra cycle delay.

Since you have the ethercat master running outside LCNC it seems like it would be difficult for those to be perfectly syncronized but perhaps that does not matter in application. I know TwinCAT is running in hard realtime on one or more dedicated cpu cores outside of operating system and with their tools you can see how much time is being used in each cycle.  It would be nice if there were a tool for LCNC where you could see that info but I'm not sure it's even possible in the current architecture.

I fixed an old system with a PMDX-122 at my high school.

It's a good board.

(not phenomenal, but good enough)

Mach 3 runs on Windows 10?

I couldn't get it to run on Windows 7 x86!

I thought XP was the newest OS that actually works 100%.

after moving the jumper I was able to get the computer to see the device again and I thought I had it programmed but moving the jumper causes it to be not seen again... Not sure where I am messing this up but I will keep reading forums and manuals

Used old Dell Optiplex 980 in Tower version has a built in parallel port, plenty can be found for very cheap, you can probaly just yank the old hard drive and put it in the new PC and everything should work. Granted the hard drive works.

tommylight wrote:

Topic separated, finally.

... start a new topic next time.

It was for next time, not for this one, this one is fixed already.
Continue here.
Thank you.

Hakan wrote:

Linuxcnc servo cycle is not synchronized with the ethercat cycle. That adds an extra cycle delay.

Okey this is new for me ... why is there the timing setup or else ? Can you explain us more about your knowledge please?

After changes in the master version it does not start, error as in the screenshot. In the compiled version some configurations work and some do not, but maybe it is only my problem. 

I am sending a corrected ui file of qtdragon hd vertical.


I do not know if the new sim directory for vert. I have tested almost all ini configurations and they work with the vert.ui version, so it is probably not necessary.

Hmm I worked it out, I don't really want to talk about it but I was trying to add outputs on pins that were already assigned to inputs, and strangely enough that didn't work...been a long weekend 

Thanks for the hint.
I will try to find out how these pins can be set TRUE when starting Linuxcnc.
Ok, the y-axis I do not need for the lathe, but X and Z. So some homework to do.

Thanks PCW
Sigi

Thank you. The spindle is now working.

I really appreciate the help.

Thank you,

Dan

I've just created this topic:
"homing with Phase Z encoder on MESA 7i96s".