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Today I was sitting with a frequency generator
my notes, if you enter only channel A in txt, the counter counts 0,1,0,1,0,1 instead of 0,1,2,3,4,5, there is no acceleration, and velocity = 0
if you connect A and B to the same pin, then at a low frequency the counter is 0, apparently the board understands that the pulse comes at the same time, if you increase the frequency above 1 kHz, errors begin, and the counter begins to increase or decrease non-linearly, well, it seems the simplest thing is to exclude channel B from the calculation, but I don't have the knowledge at all to write such a commit...

and I also need to use the PRU encoder module, not just an encoder, right?

@nhanpan You probably need to pin the ethernet irq to another core, preferably an isolated core. The irq you can get by entering the command: cat /proc/interrupts and find your ethernet adapters. In case yours also start with "enP" you could enter:
grep enP /proc/interrupts
To pin them to cpu5 with the above result as example you could add to /etc/rc.local in a line above "exit 0"
sleep 15 && echo 20 > /proc/irq/185/smp_affinity & echo 20 > /proc/irq/186/smp_affinity

It seems that the error tells that the kernel doesn't support that, perhaps a missing module? But with the irqs pinned you can ignore the message.

If you have used the PnC-Configurator to create the config then its called 'STEP_SCALE' , in the relevant [JOINT_n] section. (Presumably [JOINT_3])

Well  today I measured temperature readings with Infrared thermometer as follows:

Ambient 32 degree C.
7i92 on FPGA chip(black/square shape)= 45~47 degree C.
7i76, 7i84= 39~42 degree C.
 Stepper drivers=40~43 degree C.
SMPS=39~42 degree C.

Note-1)  I had intentionally kept the cooling fan of the panels off to check the maximum temperature rise pattern.
Note-2) ambient temp easily goes upto 45 Degree C in summer (Now Autum here) and considering its application i.e oxyfuel cutting for intended 12~16 hour per day in Industrial environment, ambient will reach upto 50 degreeC.

Now, is such temperature are suitable for Mesa and computer hardwares? What shall be the maximum allowable limit as I am planning to install temperature switch in Panel.
 

great do i put this in the ini file under scale ??

if i say 'already have all the components', i mean, i already used it or tested it,
and i think it is save to use it again

in the end i would like to have it so that you can have it completely manufactured by jlcpcb.
so it is completely independent of what parts I have

NTULINUX wrote:

PhilipME,

Are you using a vanilla Debian install from their website? If so, LinuxCNC is not installed by default so you should be safe to proceed and skip that step.

If LinuxCNC is already installed (not run-in-place) then I'm not sure what's going on.

If you're ONLY using run-in-place, you can also skip the purge command as well, but do not try to use the run-in-place instance as it will not work with RTAI unless you've built it against the RTAI kernel debs that are listed in the first post of this thread.
 

I installed fresh copy of bookworm

We're right on the verge of releasing Flex GUI version 1.0.0.

The video play list is here .

JT
 

Hello, so I would first define if this something for you or something for a wider audience? I mean, making the pcb from parts you already have is probably good for you, but might not be "good" for everyone else. So while it might be tempting to base your design around the parts its not necessarily a good thing for the rest of the people.

After you have decided on this, then "map" out what you actually need in terms of #I/O, type etc. and decide your major parts based on price, availability and so on.

For the outputs I would use FET's instead of BJT's, but I assume the ULN2003 is also something you already have?

As for the KiCad maybe you can use one of these designs as a "base":
Orangecrab
Butterstick
Basic ECP5
 

Take a screenshot of the whole screen so we can see what G/M codes are active also if this happens when running gcode then please attach that as well. We're just poking around in the dark like this.

tommylight,

Thanks much appreciated.

Seems to be working with no drama and compiles and downloads what seems like 10x faster than on my Win based machine.

I think I have Windows based PTSD;-)

Dear Colleagues,
I got issue with Inputs 1-4 on my MX4660. F.ex. GND is connected to Input 1 thru relay NO contact, OPTO1 is connected to +12VDCout on board (that voltage to GND is ok). When I drive relay, input not get active (at all 4 inputs) nor change current state. I've checked cable between motion control card and DB25 connector few times and its look fine. I've not drive directly my 7c81 card on that inputs (31-34), but it have same configuration like for inputs 5-8 where wiring inside look the same. Inputs on 26pin Low Profile working fine, one of them had issue (probably weak joint on pcb or something, after moving plug around it start to work and for today is no problem). Motors connected to that DB25 working properly. I tried measure voltage between GND and pin 10-13 at DB25 but there is only residual voltage (when relay is not driven showing 0.0mV when driven 2.6mV but I,m not really sure it is good way for check). One of outputs also working well (enable spindle). Blue lines on picture showing my current wiring, instead of NC there is NO relay contact, proximity switch drive the relay coil and for all proximity I'm using separate PSU, second PSU is dedicated to MX.
Thank You in advance for help.
Best regards

I did have a 1.5" offset added to tool 12, but took it off. Had the same issue still.

There was a fairly long discussion about 3d splines/clothoids here:
forum.linuxcnc.org/38-general-linuxcnc-q...lib?start=500#305223

If you don't need to log the points and calculate the interpolation in the same gcode then a filter is likely easier. The other thing is that your python script is for a planar curve (eg XY) but you want to interpolate in 3D. I'm not familiar with cubic interpolation for a 3d curve so I'm not sure if it would require interpolating XY and XZ separately and then combine the two.
If you had a clear description of how to calculate the way points for the interpolated curve (even if it's just in words) I might be able to put something together but I don't have the time to research the math right now.