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Here is some info I got from Peter Wallace at Mesa Electronics- (7-8-24)
1. We will not make the 5I25 anymore

2. The 5I25T is a drop in replacement for the 5I25 _if_ you upgrade to LinuxCNC 2.9.2 or greater and you use 5I25T firmware that matches the 5I25 firmware you are using.

3. Another option is a 6I25 (PCIE version of the 5I25) This is a drop in replacement for any LinuxCNC version that supports the 5I25.

4. There is complete compatibility of any Mesa FPGA card with a 25 pin interface and any 25 pin daughtercard

no hardware errors found so far,
but still need to test the modbus and adc

 

I followed with interest the initial discussion on the machining precision, with respect to the response delay of the motor position, via PDO to the LNCNC. In reality the numerical controls, for example Siemens 840d, have 2 parameters for each axis, which are the coarse stop and the 'precise stop. The problem arises, for example, when you finish one movement and start the next. Siemens at least waits for the axis interested in making the first movement to return to the precise stop control window.
Only after returning to the precise positioning window will the next line be executed.
LNCNC does not have this parameter, so in reality the passage between one movement and another does not take into account the real position of the axis, unless it is in the following error window.
Therefore, a tracking error that is too high, or an excessive delay in the information via ethercat, will lead to a premature transition to the next line of gcode and therefore a profile that is not perfectly equal to the programmed one, especially when you go faster.

I have really minimal expeirience tweaking HAL files, I hope someone can help.

I have an Arduino board communicating with HAL via the USB port.

Details if interested can be found here: forum.linuxcnc.org/10-advanced-configura...oard?start=10#304669
When I stimulate an Arduino input the target in HAL watch changes, when I change the status of an output from within HAL watch using the set and clear buttons, the output on the Arduino  changes as commanded by HAL.

I'm now thinking about the data I need to transfer and how I would go about that using HAL. If I can do the following I can probably figure out everything else I need to do.

Questions:
1) At the moment I need to execute "loadusr arduino-connector" in HALshow to start the python program that receives the serial data and then passes it to HAL, How would I do this automatically every time LinuxCNC starts?

2) I would like to run a single bit loop timing test, and see how fast or slow a round-trip message takes. So assume I will activate Arduino input 7 and then I want HAL to activate Arduino output 8 when and while input 7 is active. I will then scope the response.

3) How would I activate output 9 when
a) machine power is on
b) when say the MDI screen is selected

Much appreciated

Jeff
 

Ok, sounds very legit, I definitely can try that. How does the "q" mode work? Bldc man page is not very descriptive on this. I guess I have to disconnect index-enable pin and observe bldc.0.offset-measured. Anything else?

With runaway I mean fast motion in the opposite direction until following error is triggered, so I guess that does correspond to "continuous motion". Yes, I am sure that encoder signal is good because I have old servo drives still in the cabinet that export the signal to LinuxCNC and this machine was introduced to LinuxCNC 3-4 years ago and never have been issues with encoder feedback (there have been no changes so far how the encoder signal is delivered to LinuxCNC).

Well I booted to the other HD running uspace and no menu or panel there.

I turned it off and walked away and now both RTAI and Uspace "seem" normal.

JT

Aciera wrote:

I gather that traditionally there is a motor with belt drive for the spindle mode and a different motor on a worm gear that is mechanically engaged for the rotary mode. Although I would be somewhat surprised if that was still the case on modern machines.

That's what I'm familiar with, although I've only seen spur and helical gears - not worm gears on the C-axis aux motor.

I think the 2nd motor for C-axis is still common, perhaps becoming less so as integral spindle motors with very high-res encoders become more frequent.

OP-
Although my lathe project has lately stalled (outside time pressures), I am using a custom component originally written by Andy Pugh to dynamically switch between spindle mode and C-axis mode.  A search for my posts over the past year should uncover some tedious fiddling I've gone through.  Perhaps more important to you, my (non-Ethercat) configs were posted a number of times.

Simplified, Andy's component treats the spindle as a C-axis which has a spindle mode.  This means that at rest the C-axis is locked.  And when the spindle mode is stopped (M5), the C-axis takes over automatically returns to the last position  - within 360 degrees - before spindle mode was engaged.

Unlike the motor configuration Aciera & I discussed above, my lathe has a single servo motor performing double-duty.  With a 1.5:1 belt ratio, I do not expect it to be stiff enough to handle any sort of 'real' milling.  But engraving, light milling, threadmilling, and orientation for drill/tap should be fine.  A 2:1 ratio would have been better, but since it's a small diameter (5C) lathe I valued higher speeds for small diameter work vs. low-end torque and C-axis holding power.

-S

Sometimes it takes a few minutes for the panel and menu to load, I'm not sure why but I've noticed this with custom kernels on Debian.

As for the segfaults, I have an idea but it'd require new kernel debs..

So neue Infos aber keine guten.
Hab’s jetzt mal auf meinem Gaming pc mit 13700k 3070ti probiert. Es ist immer das gleiche. Ich habe das Gefühl das ich irgendwas vergesse oder falsch mache.
Hat schon jemand die 2.9.2 direkt runtergeladen, auf usb kopiert, installiert und ausprobiert?

Haha jetzt kommst !!!!!!!

Ich habe bisher immer Advanced install option Graphical installer benutzt und da ist das problem bisher gewesen.
Jetzt habe ich einmal Live (amd64) benutzt und da funktionierts
So wie ich das gesehen habe wird da direkt vom usb gestartet.

Was macht den unterschied aus das es nicht funktioniert?

So weiterer EDIT

Ich habe es jetzt auf englisch installiert und hier geht die sim. Werde später noch alles richtig konfigurieren und dann weiter berichten

So weiter gehts!
Diesmal gute neuigkeiten es funktioniert. Habe ich die möglichkeit es auf deutsch zu ändern oder muss ich mit englisch leben?

UND VIELEN VIELEN HERZLICHEN DANK NOCHMAL FÜR EURE HILFE!!!

I just rebooted and no menu or panel, I can get a terminal using Ctrl Alt t and LinuxCNC from the terminal.

I left the PC running and when I came back I lost menu, mouse and LinuxCNC. I installed Debian 12 and used the Mate desktop if that makes any difference.

This is what Tom got.

paste.debian.net/1322599/
paste.debian.net/1322600/
paste.debian.net/1322601/

Can I see the error messages Tom was running into or whatever the issue was? Any kind of trace or something?

The 7I96S analog output is a potentiometer replacement.
if you supply 9VDC to SPINDLE+ and SPINDLE- the output
will vary between 0 and +9VDC for PWM values of 0 to 100%.

It is expected that the potentiometer connections on the drive
supply this 9VDC.

Hallo Norbert,

Entschuldigung, ich habe ein neues Laptop, da habe ich einiges
installieren müssen. Morgen schaue ich mir das alles an.
Vielen Dank für Deine Bemühungen.
Dieter Heinrich

Tom on the IRC had some issues running LinuxCNC until he isolcpus, I just installed Debian 12 then the debs and used grub customizer to add the isolcpu and everything seems to work well. Latency is insane low!

JT