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Ok seems Yuken LSV Series servo valves are most common used

And can be +/-10v in or 4-20ma commands

Seems run at 450hz so would require a fast loop than 1khz I would think to get smooth motion

Rest of the phnc just set stroke length as set sheet thickness on it and other things too so ram only retracts for needed stroke giving you faster punch rate

The hit rate on the machine I'm.doimg is 520 I believe , king version is 1200 hits on a nibble rate this is

1" spec not sure will check spec sheet

So this does not seem that hard to interface to

The Hostmot2 Stepgen/LinuxCNC does not increase the time between steps. What you are seeing is that
the actual direction change may be some distance from the step pulse  time because
the actual step direction logic depends on the sign of the velocity command and at slow speeds
this velocity change may occur at a time determined by the _fractional_ position count. The hostmot2 stepgen
hardware position is a 16.16 bit number so has a resolution of 1/65536th of an external step.

The setup and hold timings set the minimum timings, but not the maximums.
 

Hi tom

90% of machine is no brainer done many limuxcnc before check out my posts in build section from years back , and YouTube

Only I was interested know how someone solved the punch hydraulic part , but if machine is servo or fly wheel driven then punch part is easy


Current control has a full on control with a special hydraulic servo controller for punch ram , and id like to replace it as very old now

I'll post some photos up next time I am at the machine

7i96_inmd.bit firmware supports up to 4 MPGs on TB3
no additional cards are needed for this.

Typically a watchdog failure indicates a real time issue with the host computer.

What is the result of:

sudo chrt 99 ping -i .001 -c 60000 -q 10.10.10.10

This should run 1 minute and then print out timing statistics

(replace the 10.10.10.10 with 192.168.1.121 if your 7I96 is jumpered that way))

Die ganze fehler, bitte.

Ich weiß jetzt nicht ob ich die Installation von den 2 Handrädern über die Standarteingänge hinbekomme. Die 7I96 hat ja einen
Expansionsport, gibt es ev. eine Expansionskarte die speziell für den Anschluß von MPGs vorgesehen ist?
MfG
Hans 

Yes, you can use this widget in LinuxCNC.
It's now in a newer version.It has its own QSS, so you can customize its appearance.
If anything needs to be changed, let me know, or change it yourself.
Marek

edit: I'm uploading a new directory with minor corrections

Hallo,
wenn ich Lcnc starte kommt irgendwann die Meldung:
"hm2/hm2_7i96.0: set the.has-bit pin to False to resume"
Was könnte man da Machen? Ich benutze Axis und die Mesa 7I96, Maschinenart = Drehmaschine.
MfG
Hans

When I use pncconf to configure the MESA7i92 card, I set the dirhold to 10us, but the actual measurement is about 1ms. It automatically increases the value when executing linuxcnc. This is why I previously mentioned it works correctly on the dm542 (dir use pc817).

mesa7i92 step/dir
 
 

MarkoPolo wrote:

I used your formulas for calculating the center of a circle and created a widget for qtdragon that does it.
(There's also a Python function that calculates the center from three coordinates.)
You're using axis, so it probably won't be useful to you.

 

 

If your willing to donate the code, I'll add it to linuxcnc.

spumco wrote:

I haven't read deeply in to lcec component, but I wonder if there's a polling process to check for changes.  I'd be interested if drives change state on some parameter if they're disconnected.

Looking at the ethercat documentation, the main parameter I can see is lcec.<m>.slaves-responding, which does what it says.
It doesn't appear to refresh that quickly, although that may just be that Halshow is slow to update.
I'd guess should a slave disappear during motion, a joint following error is likely to be triggered quicker.

Installation is dead nuts simple, download the deb, use sneaker net to copy to your pc and install it...

JT

Still can't get halpins to show up, but I used the widget rules to cook up a workaround...

DRO is now sorted.  Red = unhomed, black = homed

Personal preference is not to have anything that can zero out my DRO with one click.  And since I've got a physical 'home-all' button and no need for a 'go-to-zero' function, those could leave the chat, too.

 

I can keep going for now, but I'd still like to figure out the missing hal pins if anyone's got an idea.

I think you will have to do this by editing the hal file

You can use pncconfs "Discover" mode to make it aware of the installed firmware
but I don't think pncconf knows about inm MPG encoders