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Hello,


With the help of @Hakan, I will try to make a SinCos encoder input ethercat compatible board.
I'm a beginner so please don't give credit to my post, this is a learning project.
chip used: STM32F407VE and LAN9252

Here is the git project: 
github.com/paulsvc/Firmware

Done:
Step 1: Quadrature Encoder input 

Ongoing:
Step 2: Ethernet layer

@Hakan, I struggle to setup the ethernet part. I use the following pins:
SPI2_MISO: PC2
SPI2_MOSI: PC3
SPI_IRQ: PA8
SPI2_SCK: PB10
SPI_NSS: PB8
SYNC0:PC6
SYNC1: PB15

I went through the EASERCAT7000 project but I'm not sure when do you setup these previous pins

Thank you in advance for your help

Sandro wrote:

Is there a way to manually apply the Monokrom filter plasma_gcode_preprocessor to a G-code file outside of Monokrom, just to see what the output looks like?

Does Monokrom have an option to save the current G-code file? (I can see that it might well not have, as you can't typically change the file in the GUI, so there is no point). 
You might be able to view the file-as-run in the GUI though, and see something odd around (I stress "around" as the reported line number can be off by several lines) 

Unary operators are things like SIN[] COS[] etc so I would be looking for unexpected square brackets. 
 

mooser wrote:

While waiting I've got to find a better solution to using these fine wires from the sensors and pendant into the terminal blocks.

Maybe bootlace ferrules? Effective at stopping stray strands bridging between channels. 

(And some of the crimpers are fun - there is a little video of a 6-segment one here, though the 4-segment ones work better in cage clamps, I feel. 
www.amazon.co.uk/s?k=ferrule+crimper&crid=284PIPYNNE1CT ) 
 

Masiwood123 wrote:

how do i upgrade linuxcnc only, without losing the configs and leaving bookworm? apt upgrade only adds office and some other things..

Your configs are in your ~/linuxcnc folder so keep it. If you used the linuxcnc ISO
sudo apt upgrade might do it.

I just published a video on how to upgrade to 2.9.7 on Trixie because it has 2.9.4 available in the Debian repos.
The apt pinning method I describe could be used on Bookworm as well. In fact uninstalling linuxcnc and removing the linuxcnc.list file in the APT folders would let you follow my Trixie method on Bookworm just keep the sources files pointing to bookworm
 

how do i upgrade linuxcnc only, without losing the configs and leaving bookworm? apt upgrade only adds office and some other things..

Thanks a lot for this information. Currently I will stay with the sourcing Outputs. I just started with LinuxCNC and don't plan to modify the Hal-File by hand at the moment (Pncconf is currently my approach).
If I'm more experienced with LinuxCNC I will do this modification or maybe a new LinuxCNC version is available which fully supports the 7i76EU.

I saw this thread and went down a similar road trying to get a user tab set up for surface compensation. The linked repo was indeed incomplete, but I was able to use it as a starting point and get this working with some trial, error, and LLM assistance.

Hopefully someone will find this useful: github.com/Blair-Johnson/surfacemap_usertab

I see you  suggested these servo drives:  www.aliexpress.us/item/3256808075045002.html  I like the idea, but the only ethercat products I have experience using with LinuxCNC so far, is Beckhoff products. If these drives are compatible with LinuxCNC, I say go for it. I bought a similar ethercat servo last year. It is still patiently waiting for me to try it out. For the weight of your machine, if you use the 1000W size, I am sure you will not be sorry you went with that. It will help increase the acceleration/deceleration speeds when jumping from one cut to the next. Can make a huge difference when you get to cutting lots of small parts. Tomorrow I might have a chance to look at a Messer plasma table about this size when I'm out on another project, I will see if I can check what size motors it has.

You will probably want to power the Plasma table control cabinet using 240 volts AC (220).

I looked at your long list again. My opinion is a.i. bots frequently over engineer a lot of insignificant points.

I might be able to help some, if I can find the time. I can't provide a comprehensive package like your list asks for, but here is a start.

For the limit switches I suggest Automation Direct part number AAM2F43Z11, I like to set them up in a drive-by configuration, where if the axis over-runs its hard stops a bit you're not crushing the switch. If any of these will be used as homing switches you should replace their snap action contact blocks with the teasable version: Automation Direct part number AGX11-SWITCH, I used that in a project a while back and it worked great.

You probably need 6 limit switches for the X and Y axis total. How about the Z axis? What does that one look like? I might suggest just one upper limit switch for that. The bottom limit is going to vary depending on your table height and workpiece thickness. Does your torch holder have a collision sensor to detect when it runs into a protruding edge, like when a smaller piece tips sideways?

For the cords from limit switch to control cabinet I would suggest something like:

Automation Direct part number CC600-16-3S-1 You don't want to use this for circuits that need to flex all the time. I would use this wherever it can be strapped to the frame, etc.

For any limit switch cords that have any flex points or travel through a flexing cable tray I would use something like Automation Direct part number A3131603-1

Both cords are shielded. I would probably use only the second one on the entire project. In applications like this, I like to route the low voltage signal wires through a separate conduit, not the same one as your h.f. power cables. If strapping to the frame, bundle them separate and keep the two bundles separated by several inches, and don't cross them directly over each other. Ground the shields only at the computer end and isolate them at the switch end.

You don't have to get everything from Automation Direct. It is a supplier I use a lot, so I will end up referring to them frequently.

Drawing wiring diagrams is fun. Mostly I sketch them up using paper and pen. Maybe sometime I'll find time to learn how to do it in Qelectrotech.

That's where I tried putting it but it didn't seem to work. I might have the format of the entry wrong, I'll play around with it again
Thanks

Thanks that clears up most of it. On the 1.4 board there's pin p1.31. What would that connect to on the w5500 board? In the video there's a power supply going to the w5500 board. Does it need 5v, 3.3v, or both? The documentation shows that it's possible to power a raspberry pi with the 1.4 board. Is it possible to do the same with the w5500 board? Looks like there's 5v there.

   

A VFD is normally not a very good servo system because it has such limited control bandwidth.
It may be workable if orientation is run very slowly, you have a good spindle encoder and do not expect
perfection in the orient angle.

Sim works here but i am on 2.10/Master version.

That's what I expected, its the output scale.
(analog scale for analog out, stepgen scale for step/dir out)