Hello,

there are already some threads about this, but most of them never continued the topic or vanished. So I wanted to start another (that hopefully not has the same fate). The topic would be homemade sinker edm machine with a pulse generator. Is it possible? I just had some thoughts:

- Using the pulse generator based on Ben Flemings book (Build a pulse edm machine), but replace all the knobs and pots (if possible have not checked yet) with software and/or relais and control them via a gui.

- For simple jobs use a G1 Z-??? F??? and then somehow measure the spark gap and use motion.adaptive-feed to adjust it. The feedrate could be trial & error. Add a timer that every x seconds sets motion.adaptive-feed to -1 (or more than 1, have not tested that function yet) to lift the ram up and flush. Then use the spark gap value again to move down.

- With a XYZ(C) machine maybe even orbiting the electrode?

- Has anyone here build the Ben Fleming pulse generator?

Just trying to gather information before jumping deeper into this topic.

Thank you.

OK, after 2 hours of testing, the error appeares again...
Someone who can help me..

Best regards
Jens

I'd thought I'd add samba and windows can be a PITA to setup.
As the underlying OS is Debian bookworm, any guides or how-tos that cover installing samba on Debian will be far far better than asking here.
I would also install gvfs-backends and gvfs-fuse as well. Samba-vfs-modules might be an idea as well.

You only need the Ethercat repos if you are going to use Ethercat .
Debian sources
gist.github.com/hakerdefo/5e1f51fa93ff37871b9ff738b05ba30f

Installing samba
serverspace.io/support/help/configuring-samba-on-debian/

Thank you for the link.

I set up the software limits and homes. I assumed the hardware limits wouldn’t be necessary to get it running.

What I don’t understand at this point is how I get the gantry, which is currently at the midway point of the machine, 24” from the desired home location, jogged to the home location, in this software, so I *can* home it. I don’t see how wiring in the physical switches allows me to do that.

Hopefully the docs will get me there. Thanks.

Thanks. I’ll order the switches.

Having a blast is not my goal here. I need a working tool.

To be clear, when I set up the limit switches the software will treat the two Y motors as one? Currently they are being treated as separate axes, which makes it impossible to move the gantry to a home position.

hello, since there is no default configuration for 7i96s+7i77 in pnccfg, I'm trying to use mesact, but I get an error, I can't enter values ​​in the specified fields at all. thanks

Colleagues, does this apply for version 2.8.4?

Yes this is my goal, everything on a same board.
IC-NV part is not easy but one from PEdpex is working so I should use the same.
There is not much chip that can do this as good as IC-NV so I might stick to this one.
And STM32F4 works good for encoders so it should be a good match.
I will try to start from your E7000 then thank you

I want to install samba, but apt install samba gives "Package 'samba' has no installation candidate", I did apt update but it didn't help. I checked repositories and there is only linuxcnc.org. Should I have also Debian repositories or not? How to install samba?

Also do I need: " download.opensuse.org/repositories/science:/EtherLab/Debian_12/ "? What is it for? It gives an error on apt update:
"Get:1 download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease [1,575 B]
Err:1 download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease
  The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project <science:EtherLab@build.opensuse.org>
Hit:2 repository.qtpyvcp.com/apt develop InRelease                                              
Hit:3 www.linuxcnc.org bookworm InRelease                                                       
Reading package lists... Done                      
W: GPG error: download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease: The following signatures were invalid: EXPKEYSIG A94819A7CB97A204 science:EtherLab OBS Project <science:EtherLab@build.opensuse.org>
E: The repository ' download.opensuse.org/repositories/science:/EtherLab/Debian_12 ./ InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure( manpage for repository creation and user configuration details."

 

I found Pedpex's work, awesome.
Maybe that is what you have in mind, but I would put his circuitry on the same board as ethercat
to have it neatly packaged.
One thought I got is if one can skip the quadrature part in some way. Are there sin cos chips
that can deliver a value over spi or i2c for example?
The built-in quadrature encoder in stm32f4 can read with at least 3 MHz so maybe not a big problem.
I have code to extend numbers over the 16-bit and 32-bit boundary.
Code for encoder counting is in E3000 project. 
Best to base HW on E7000 project, clear out pins and I2C and add encoder inputs.
 

IC-NV are here for the conversion, not easy to setup but Pedpex, a member from the forum did the stuff.
My goal is to merge his project to yours basically.

I will prepare all the work environment and when the schematic will be done or almost I will open a thread. Maybe i should start with a prototype PCB from you as I already get a pcb from pedpex and when everything is running, I do the merge

I Installed the  WIll have a look at it.

Best regards
Jens

Here is a screenshot from the Latency Test of the old configuration. Only for the Kernel-Infos.
The latency was horrible at this time (without irq-optimisation at this time)