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Realizing now I might have misinterpreted the above posts as meaning a useable version was available.
If that's not the case I'm curious how long it will be till it might be ready?
Not trying to rush things if it's not done, just trying to get a gauge on ETA after realizing maybe it's not already in the repo or ready for release.

So the answer is 

5.2.1 Initialization parameters
Set P02-31 to 1 to initialize the drive parameters, and the drive needs to be restarted after the setting is completed.

P02.31
0: No operation 1: Restore factory values (except P00/P01 group) 2: Clear fault records

So NO that does not tune the drive.
. 

7I96 + 7I85 configuration with step/dir index on 7I85
and PWM on STEP04 pin. DIR04 pin is left as GPIO
so it can be used as enable, direction, or whatever.

Hi RodW

Thanks so much for your effort.

What I have done so far to get my gantry moving is just tie the home markers for the 2 X axes together

net mydigitalinx lcec.0.0.mydigitalin => cia402.0.mydigitalin cia402.1.mydigitalin

I then modified the cia402.comp file to accommodate. I Use the index pulse from each axis for the final position. I am away from the machine until Friday, I will upload the files then.

I just loosen the coupler once homed to adjust the squareness. It seems to be working. (only need to adjust once)

Yes this is awesome. I hope to get around to setting it up in the next few days.
Is this on the stable repo now or should I switch to dev?

When following the video on setup, and using stepconfig wizard i get this error. Linuxcnc PI 5. When looking at my configurations and selecting my config there are not any details and i get the attached error.
Im a newbie, but do have Arduino experience. Please be gentle, lol..

Judging from other builds, there will be lots of questions, so best to start your own thread and keep it there.
I'll look here daily I would say. You can also contact me by creating an issue on github. I'll get notified then, even if I happen to not be here for a while.

Hi Hakan,
you are right, stealing the thread was not my intension. Sorry I'm an old man... 
Should I open a new thread?
I'll look through the Aliexpress links, there will be something useful there, thanks.
I hope that everything will work out. It would be a great success for me if I could get your EaserCat 3000 up and running.
I hope I can contact you if I have any further questions (which I'm sure will come).

Best greetings from Bavaria
Peter
 

Two network interfaces and you can have both Mesa and EtherCAT.

Hi Arciera,

Thanks.

I wrote a email to "Min Wan" University in China.
He or she is one of the abstract creators of the 3d clothoid.
I asked for any source code. Or any code they have used for testing their algo that can help us.
Fingers crossed.

To me it looks like " means second derivate?
And the sign above the z and x i don't know.
 
 





 

Whilst using hm2 over Ethercat should  improve network latency issues with Mesa cards due to the more efficient transport layer, adding the additional complexity of Ethercat just for this does not make sense to me.

The point is not so much to improve latency but to have open, extensible I/O that interworks with Ethercat servos.
Say you want a BISS absolute encoder interface, MODBUS and RCPWMgens on one low cost EtherCAT compatible card...

LCR wrote:

Also, what are people doing for gantry (dual servos on a single axis) systems? 

If I can get internal homing working, there is a setting in the drive for home offset so you would just adjust for squareness using it.

Hello JT, I hope to be able to respond promptly to your email. Why don't you use LinuxCNC?
Will I be able to see your machine online, running with your Ubuntu?
I think, LinuxCNC 32 Bits, isn't it more complete than your Ubuntu with LinuxCNC? I made a small mess of talk, because I wanted to use my 32-bit HP Mini, but it does not offer me a parallel port, and it is the one that distorts my image when booting LinuxCNC 32, it did boot Ubuntu correctly and hence my talk.
But I have forgotten the parallel port that the School's LinuxCNC 32-bit cpu offers me, which I have installed on the old 32-bit cpus, with 512 megabytes of ram, IDE mechanical disk, and I loved how fast they were, fluid, that I even installed games on them, to stimulate my students. So, if the 512 megabytes of ram work very well in your Ubuntu, in the 32-bit LinuxCNC, do they also work well? Or do you need more hardware? Thank you very much!... Congratulations!...
 

As the OP said, the missing piece in an Ethercat build is affordable encoder inputs for spindles. There are very few options outside of Beckhoff. I have some Beckhoff I/O but have not bought an encoder module.

There are a few I/O modules generally with 16 inputs and 16 outputs. There must be a cheap Ethercat chip they use. Examples from Deiwu and Rtelligent (I have both). Rtelligent includes some PWM outputs.

But lets face it, the main reason one goes with Ethercat is to use Ethercat servo and stepper drives so the Mesa cards with analog and step/dir interfaces are not particularly useful any more.

Using Ethercat drives reduces the need for I/O because most drives have some included I/O for home and limit switches and brakes etc. These can also be used for general I/O.

Whilst using hm2 over Ethercat should  improve network latency issues with Mesa cards due to the more efficient transport layer, adding the additional complexity of Ethercat just for this does not make sense to me.

Perhaps Mesa could look at an Ethercat 7i92 equivalent that supported some existing daughter cards to give I/O, encoder, counters for MPG and analog voltage by adding a THCAD2 with its Calibration data stored in Ethercat registers? Perhaps this card would include some  smart serial interfaces too?

Anyway, I'm gonna go back to fiddling with Ethercat internal homing now...  After a long hiatus, I got my homing lab working last night and homing commenced as it should. I just have to work out why it didn't respond to the homing switch when it came on...

vizavadsky wrote:

Thanks again! Now I can start LinuxCNC and motor start to make sound on start. Also Encoder shows position in DRO tab. Looks like I have communication with the servo motor now. When I trying to Jog or turn motor shaft I got Error: joint 0 following error. Same thing as  bananun described at the end of page one of this thread but his solution doesn't work for me. Now I'm not sure is this is Servo related error or I still need to do tweaking LinuxCNC settings. I seriously underestimate complexity of this project

 

Try to increase the ferror and min_ferror a lot, like 1000 for each, if that works then bring it down to a reasonable level