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I have flashed the 2x7i77 file to my 7c81 and made a config based vaguely on this tecnique:
i made the config using 5i25 and the single 7i77 template.
when i try to start linuxcnc fails and says that it cant find the first pin (like there was no field power).
Could there be a problem with my config?
7i77 is connected to p1, pncconf shows the the 7i77 tabs at SS#0 and SS#1 and p2 p3 are free to configure. do i have to edit the hal manually (except the rpspi and the name of the card of course, I have already done that)?

Hi

I also could use some index inputs for my Emco lathe. Is it possible to make a firmware for 7i96S with 2 index inputs in isolated I/O?

Hello,
I do apologise for delay. I managed to get out the relevant files. I sure hope they will reveal what am i doing wrong.
Thank you for replying, I greatly appreciate it!

I have a problem with my milling machine because it is not accurate

Below is the part I'm making to test my machine.

 


I have a difference of -0.6 mm / 0.023622 in on the X axis
                                   -0.3 mm / 0.011811 in on the Y axis
                                   -0.1 mm / 0.00393701 in on the Z axis

no excess thickness on my program

I tested with a probe the 3 axes, and about the same location as the machining of my part when I jog 1 mm I have 1mm and I jog 5 mm I have 5mm. the problem is that I have a backlash of 0.05mm (wear of the screw).

for me my PID is good.

This is the 3rd piece I have tested and I have the same dimensions.

 

Thaks, I was about to answer that I checked it 3 times, but i went in workshop and checked it a fourth time, and guess what, someone has has plugged the cables in the multimeter reversed...

Sounds like reversed polarity on the field power connector.

another question regarding the 7i77:
i have hooked up the field power to the secondary output of my power supply, but the voltage breaks down. So i have hooked it up to a separate 12V Power supply delivering max. 1A, but same behavior, the voltage breaks down even if I separate vin and field power
I have checked field power and Gnd, they are not shorted, like in another thread mentioned.
The manual says "Field power must have a ramp up rate of less than 10V/Millisecond", I am no expert, but plugging a switching supply in the mains should not not exceed that!?

2.9.3 I believe. I just installed it a few weeks ago.

No the W5500 works, initiating (ip addrr and other such stuff) is done via the FPGA via the SPI interface.
You'll have to setup your config to use the W5500 so that the correct bitfile is generated.

Examples and docs are supplied on the github project page.

Thanks for confirming. I hope I get around it soon to test it. New W5500 are at home.

> tooltip on the GUI:
it depends on where exactly you want the tooltip

 

Everywhere, where acronyms are used. For Example in the binin Plugin. LVTTL, LVCMOS33,... I have no clue what that means... LVTTL = Low Voltage Transistor Transistor Logic?
 

I'll have to dig into Python, I've never worked with it directly. 


Yes, my goal would be mappable io pins via mx px gcode convention.


I already wrote a coolant control hal component, might be time to start adding to it

Cute machine!
Since you have 6i25, Mesa 7i76 would be the preffered choice, and it has full spindle control, even with encoder feedback.
Keep in mind that you have to power the machine after LinuxCNC starts and power off before shuting the PC down, while using 6i25 in parallel port mode.
I would make the machine work as is first, then get the 7i76.

Regarding crashing, check what video codec is causing it, usually that is the reason, although when recording from a mobile phone there is no choice of cedec.

What version of LinuxCNC?
2.10 has tandem limits so it should have tandem joints also.

Depends on what system is used on Z, steppers can not do torque sensing (even TMC drives miss that a lot), servos can do that but in most cases they would require opening the drive and soldering extra wires as not all have monitoring outputs.
The easiest way, floating head, and it does not miss.

Check encoder PPR, make sure the scaling is correct, then we can move to tuning.
In the meantime, upload the config files here so we can have a look, just in case something is off.