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hm2_eth: ERROR: Could not retrieve hardware address (MAC) of 10.10.10.1: Connection refused

Wrong IP address for the Mesa card (unless you changed it)

@Hi,

I just made a test for 5 axis. xyz abc.
Where a rotates around x, b rotates around y. The c axis is the cone symetric axis, like spindle orientation.

The tool direction line is 15mm of lenght.

The ping times are pretty bad.

If you have an intel Ethernet chip have you disabled IRQ coalescing?
This is described in the hm2_eth manual page:

man hm2_eth

gnipsel.com/linuxcnc/debian-12-eth.html

If you get the error right when the torch starts, that suggest a EMI 
or grounding issue . Do you have a flyback diode across the relay coil?

The L292 is listed as a DC motor driver. However a pair of them can be used to control a stepper motor.

If the motors have encoders on them, they may be DC servo motors. The drawing seems to show two L292's per motor, so they are likely steppers.

Jon

A runaway means positive feedback

Does the motor hold position with just the P term?
I would comment these lines out:

net encoder.02.vel -> pid.3.feedback-deriv
net motor.02.vel-cmd -> pid.3.command-deriv

and try again

Also note that raising the servo thread rate (to say 4 KHz)
will improve the PID loop performance, and also that
final tuning needs to be done under load.

Alpologies to Andy for jumping in.

3rd channel should read “channel number 3”
It’s actually “input number 10” not 3.

Sorry it’s late Down Under.

I got a runaway while following PCWs procedure and was adjusting D parameter.Is there something I should check about the config that could cause it?

Thanks very much.
You tell me severalnew things, esp re: spi.

My trusty pentium4 died recently,
after years of being on lifesupport.

luckily, I have an Rpi4 to try SPI remora MKS masahup.
(and a i686 that I can dictate this to)

(note for oother vision impairted, try nerd-dictation)

again, thanks!

The 7i73 connects to the Smart serial port on your Mesa card. Talking about the "kernel" in this instance can be a bit confusing. Basically its easier if you think about "talking" to Linuxcnc as that is basically the source & destination.
I think the 7i93 would require a suitable daughter card with the SSerial interface on it, something like a 7I44 (although there are other options it just depends how far you want to delve into DIY forum.linuxcnc.org/show-your-stuff/48185-m-e-s-s-i-board is an example whilst shown for a 7i92 the Mesa Infrastructure is great).
I see in your first post you mention 7i95T
Having a read of the 7i73 Mesa manual will help in understanding how it all goes together.

hm2_7i92.0.7i73.1.3.input-10-not

Input number 3 not (input 3 inverted)
connected to the 3rd channel on sserial port 1 (each port can have up to 8 channels)
connected via a 7i92 card

The 7i73 will have a bunch of other inputs, outputs, encoder pins exported, plus a few others depending on how you config the board on startup.

Data transfers happen in the hm2 read & write functions of your card in the servo thread, which is setup in your hal file.

The docs give a better explanation.
linuxcnc.org/docs/2.9/html/man/man9/sserial.9.html#7I73

This is what I think wold need doing.
To connect directly to a serial port of your computer it would have to be hardware port (not USB), you would be limited to 115200 baud unless you have an exotic hi speed card (smart serial operates at 2.5M), someone would have to write a realtime driver for the port that handles the comms to the 7i73, not the easiest of jobs, would require reading and understanding the protocol used and implementing it as well.

Hello Masi,
Have you already created a cicruit or device to convert the frequency signal to 0-10V or 4-20mA converter? This would make it a lot easier to control the height.

Andy,

Thanks for the input, I have a few questions. Keep in mind I'm not a software guy, I can write embedded C type stuff but have no clue about the Linux kernel or anything related to that. I did with some help interface a few pins to the 7i95t by tweaking a HAL file.

I hope you don't mind but I will ask specific questions so I can fill in the knowledge blanks I have at the moment, here goes:

Regarding the 7i73:
1) I guess that you connect the 7i73 RS-422 interface to a serial port of the Linux PC, and then enable some sort of 7i73 driver in LinuxCNC that magically establishes the communication link between the two?
2) With the link established data transfer then happens quickly and automatically, if for example a pin changes status on the 7i73 a register in the kernel is updated?
3) How does one map the various 7i73 inputs to the desired action in the kernel?
4) I guess the values in the kernel registers can also be mapped to drive the outputs of the 7i73?
5) I'm guessing the mapping (3-4) is done in a HAL file?

Regarding the matrix_kb9 approach:
6) If I don't use a 7i93, it's not obvious how I would get the integers into the kernel hardware wise?

Thanks,
Jeff

Ok I will do that, thank you..

Have you written your new M6 code yet? I think what you're trying to accomplish is taken care of by change_prolog and code you write into M6.

If I understand correctly, you have a rack toolchanger. To do a tool change, you naturally have to

1.) Move over the tool 2.) Lower over the tool 3.)clamp the tool.

There are a few more steps to a robust, successful M6, like checking for tool in spindle, etc.

I suggest reading up  HERE .  It feels like a lot (and it is), but it can be done.  I have an example of a carousel style changer that works (almost entirely), if you want to look at that.  

You will need to include stdglue.py if you want to use the standard prolog and epilog.  The Prolog prepares the tool number info I think.

Let me know if I'm off base.

Not quite, it's a little more complicated than that... From memory:

Run PNCCONF to get a base config. Test this config in Axis. IMPORTANT: Do everything   HERE  to convert your INI and HAL files.  There will likely be some bumps and bruises along the way, come back and post your problems and we'll do our best to get you up and running.

If you have a working config, jump to the hyperlink.
 

Can you screenshot and attach it? Need more info to be able to help.