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Not important, it just does not belong here, only Open Source stuff does.
I allowed it at my own risk, to help you till you set up your own website and forum.
I have yet to figure out if it would be OK to present it in the "CAD/CAM" section after your site is up and running. Either way, support must be on your side, not on ours.

Todd wrote:

I'm also NE Ohio (Wayne Co.) and I didn't think most of the farmers right around me had 3ph. But maybe that has more to do with the fact I'm on the edge of Amish country.

They got the 0ph power.

I'm in Ashtabula, and our Amish have F350's, $10k kick-scooters, and 3 phase power that seems to be disconnected only when the Elders are around.

You can connect single ended NPN encoder outputs to the 7I97T
Worst case you might need a stiffer pullup resistor on the inputs
than the built in 2K ohm encoder input pullups on the 7I97T

A 7I84U (32 inputs 16 outputs)  or a 7I70 (48 inputs) can be used to expand the inputs on a 7I97T

I just wrote half a page and had to delete and start over:
-Use pins 14, 15, 16 on C2
-Set mesa for single ended encoders
-do not touch the wiring between drives and motors.

Hello.I have a cnc sharpener with motors and Italian analog servo drivers -10V Phase AX-V 06094. I want to upgrade to linuxcnc since the controller is an old PROMAX system that has an old SD card reader, it does not support modern sc cards. Some cards I have have errors and there are no spare parts. I think the phase drives are connected to SINCOS encoders, the driver has encoder outputs Ch A, Ch. B and Ch. C (Ch C seems to be index) the outputs are NPN open collector 30 V, 100 mA. Is it possible to connect these drivers to a 7i97T table card?, and also advice to expand the inputs since the 7i97T only has 16, I had thought about a 7i84U card.


Sorry if it's not right in English, my language is Spanish.  

I'm also NE Ohio (Wayne Co.) and I didn't think most of the farmers right around me had 3ph. But maybe that has more to do with the fact I'm on the edge of Amish country.

hermann1976 wrote:

It makes it possible to successfully retrofit older machines—such as complete Homag woodworking centers with multiple table zones—using LinuxCNC.

I am pretty sure that can be done already, see G55, G56, etc.

@retrofitcenter...

Hi , I gathered that you’re from Austria. I am too.
I think what you’re aiming to implement in LinuxCNC is great and exciting.
The multi-channel control option is definitely a real asset to the LinuxCNC project.
It makes it possible to successfully retrofit older machines—such as complete Homag woodworking centers with multiple table zones—using LinuxCNC. I work in the woodworking industry myself.
I also took a look around your website—you’re working on some great projects there.
What kind of training or education did you complete? Mechanical engineering?

Why? Cant you just lock it?

absolutely. I agree that exchanging files through the forum would get cumbersome very quickly once we start iterating.

I’m using GitLab for the development, so I think that would be the easiest solution. I can set up a dedicated repository/project for the testing where you can upload your LinuxCNC configuration, HAL/INI files, custom components, machine documentation, etc. We can then track changes through Git and use issues for individual problems or features.

If you don’t want your machine configuration to be public, that’s no problem, I can make the repository private and give you access directly.

A video call would also be very useful. Especially at the beginning, it would probably save quite a bit of back-and-forth if you could show me the machine architecture, channels, spindles, axes and what you want to achieve.

And yes, the 32 mm Swiss-type machine is exactly the kind of machine I’m looking for. For around $5–6k it could be a very interesting test platform for the multichannel system.

I’ll prepare the GitLab structure and send you access/details.

retrofitcenter wrote:

Yes, it will be open source.

Thank you.

OK, let me know when can i delete this topic.

Todd wrote:

Much of the USA is very rural, and in many places it can be more economical to buy and install a large generator than to get a large 3ph service from a utility.

All the farms around here can get 3ph drops pretty easily - or already have it.  It's really the suburbs and cities/towns that have an issue in this region (NE Ohio).

But I've no idea if those farms have "large" services or just enough amps to run some irrigation pumps and conveyors/fans/elevators.

@retrofitcenter...

This forum has no PM functionality.  Do you have a github repo or similar location where I could provide my config and related files?

I have no issues posting files here, but the inevitable back-and-forth with file transfers during iteration gets really clumsy when done through a forum.

I'd be happy to discuss whatever you'd like during a video call.

This is the sort of thing I'm talking about:  $6k for a 32mm swiss.  Probably get it for 5.

hgrinc.com/productDetail/CNC/Used-Star-M...C-Lathe/11240360356/

Much of the USA is very rural, and in many places it can be more economical to buy and install a large generator than to get a large 3ph service from a utility.