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  • SwitchWitch
  • SwitchWitch
Today 19:11

please help five Axis with Vismach simulation and Mesa 7i96S

Category: General LinuxCNC Questions

Most important: You have to modify the postprocessor to enable tcp.
With 5 Axis you really want to use tcp.
  • SwitchWitch
  • SwitchWitch
Today 19:05
Rotary Axis was created by SwitchWitch

Rotary Axis

Category: General LinuxCNC Questions

Looking for some community advice:
I’m planning to add a 4th axis (rotary A-axis) to my milling machine. In principle, that’s not a problem. What I’m wondering is how to best handle situations where the stock isn’t clamped perfectly centered in the chuck/vise.I think it’s unrealistic to expect the workpiece to be mounted absolutely concentric every single time.I’m using the Probe Basic interface. I checked the probing functions to see if I could probe and compensate with G52, but that doesn’t seem to be possible.
How would you approach this? Would you probe the offset somehow, use a different work coordinate system, or handle it another way?I’d appreciate any tips or suggestions!
  • djdelorie
  • djdelorie
Today 19:00
Post-M6 - restore X,Y ? was created by djdelorie

Post-M6 - restore X,Y ?

Category: Advanced Configuration

I have a rack-based toolchanger/toolsetter at the back of my CNC router.  My custom M6 gcode saves the X,Y location at the start, and moves back there at the end (at max Z, of course).  Often the next thing that happens is a rapid to a different X,Y.  I'm wondering if there's a safe way to not restore the position after the M6, or if there's some magic to restore it only if the next move is anything other than a G0XnYn move (i.e. G1 or G0Zn)?
  • PCW
  • PCW's Avatar
Today 17:40

Mesa 7i96s with 7i74 and additional pwmgen

Category: Driver Boards

Not sure, works for me:

mesaflash --device 7i96s --addr 10.10.10.10 --write 7i96s2p_7i74d.bin --reload

md5sum 7i96s2p_7i74d.bin
b77b9faf82730e3acf82c2cdcba6e022  7i96s2p_7i74d.bin

mesaflash --device 7i96s --addr 10.10.10.10 --readhmid > 7i96s2p_7i74d.txt

gives me:


 

File Attachment:

File Name: 7i96s2p_7i74d.txt
File Size:7 KB
  • Aciera
  • Aciera's Avatar
Today 17:37 - Today 17:48
Replied by Aciera on topic potential bug in version 2.9.8

potential bug in version 2.9.8

Category: General LinuxCNC Questions

Thanks for reporting.
Given that you could actually run the gcode after getting the 'Radius to end of arc differs from radius to start' message on load would point to a bug in the arc checking done on load which might be connected to a bug fix:

There was a bug that had made the preview use the RS274NGC_STARTUP_CODE in the ini file whenever a new gcode was loaded. This could lead to the preview not matching the currently set machine state. Eg if the gcode did not contain the WCS system (eg G54 or G55) and the controller was currently in, say, G56 but the ini startup_code contained G54 the preview would show the tool path with reference to G54 when the machine would actually run the program with reference to G56 (ie possibly somewhere entirely different).

Could you post your gcode file ?
  • Lennart
  • Lennart
Today 17:21
Replied by Lennart on topic Mesa 7i96s with 7i74 and additional pwmgen

Mesa 7i96s with 7i74 and additional pwmgen

Category: Driver Boards

Hello again,Somehow I'm struggling to flash the configuration:
mesaflash --write
returns a success message, but running
--readhmid
afterwards shows absolutely no change.I've tried it with my newly generated bin file (
7i96s2p_7i74d.bin
), but also with various other configurations. I made sure to execute
--reload
and also did several hard power cycles (power resets). I checked the board status using
--verbose
, and it looks like fallback is not active.Does anyone have an idea what could be blocking the update, or what I might be missing?

I attached my terminal outputs.Thanks in advance!
  • depronman
  • depronman
Today 16:27
potential bug in version 2.9.8 was created by depronman

potential bug in version 2.9.8

Category: General LinuxCNC Questions

I have recently upgraded both my lathes from 2.8.4 and parallel ports to 2.9.8 and MESA cards
All is running well over the last 6 to 8 weeks and is all stable
However I loaded up a Gcode that I wrote some years ago today and linuxcnc was throwing an error related to the G02 / G03 lines stating that the arc would not meet up or words to that effect

Checking the G03 line all seemed correct, I work in Diameter mode G07 and metric units, the previous X and Z position where correct and a radius of 0.6mm was called for, the finished X was start X + Rx2 and the finished Z was start Z - R
As stated already this Gcode had been written some years ago and used many times without issue

I have amongst others G07 set in the INI files, and as such I do not normall include G07 in my Gcode files (I had always assumed that the INI files would set the machine to G07 and therefore setting G07 in every Gcode was not necessary, I do the same with metric units and never set G21 in my Gcode files as it is set in the INI file)

Running the Gcode all went well appart from the nag message about the ARC but other than that the Gcode ran and produced the correct component, Howerver the graphic on screen display was NOT correct, the white lines (tool path) where drawn at twice the distance from the centre line. When the Gcode was executed the red lines where drawn in the correct place which was NOT over the top of the white lines)
The digital readout on screen was all displayed in Dia mode having the black background and Radius mode the green background
When the Gcode was started the on screen display was moved to show the origin position, this could be moved to show the component being machined.

I found that adding G07 to the start of the Gcode fixed the display problem and the nag message about the ARC
My assumption is that the on screen display is generated from the Gcode file but is NOT utilising the G07 from the INI file
The machine interpeter is using the G07 from the INI files and set the machine to Dia mode and correctly machines the component.

As stated previous versions, at least 2.8.4, did not work like this, and if I'm honest this feels like a bug in 2.9.8
There is a work around to add the G07 to each and every Gcode file but in my eyes this should not be required as it is already set to G07 in the INI file

lower left hand bottom corner of Gmoccapy screen shows active G code and G7 is there even without the G07 in the Gcode
its very repeatable, remove the G07 from the Gcode and save the Gcode and the ARC error message is displayed, add the G07 to the Gcode and save the file and no ARC message
MY lathe is a slant bed, tooling on the back of the machines just in case that could be relavent

Whats your thoughts 

 
  • eraserhd
  • eraserhd
Today 14:56
Replied by eraserhd on topic Remora for RP2040

Remora for RP2040

Category: Computers and Hardware

Nice!

I did get PIO working and made a pull request . I hadn't announced it yet because I want to stress the heck out of it, and I just ordered a PCB that will form a hardware test harness for it. It seems like it will work well, but I want to make sure that when six axes are chugging along full speed, the scheduling doesn't slip or lock up.

It theoretically should be capable of 200KHz stepping, but again, I haven't stressed it yet.

I bought the WIZNet RP2350 board as well. One of my pull requests should in fact work on it, but I haven't tried it.   I'll check out this code soon!

Hey @scotta , any chance we can get some of the other PRs merged?  They are starting to stack.  #12, #14, #15, and #17 should all be good to merge, and #11 could be closed if #15 is merged.  (The forum won't let me link the PRs.)
  • meister
  • meister
Today 07:40
Replied by meister on topic Jog speed

Jog speed

Category: AXIS

a usefull commandline to check changes in hal
# halcmd show | grep -v "time\|period\|,\|ready$" > /tmp/t1 ; while sleep .1; do halcmd show | grep -v "time\|period\|,\|ready$" > /tmp/t2; diff /tmp/t1 /tmp/t2 | grep "^>\s*[1-9]" | sort -u ; mv /tmp/t2 /tmp/t1 ; done

>     23  float OUT                  3.97  halui.feed-override.value
>     23  float OUT                  4.71  halui.feed-override.value
>     23  float OUT                     5  halui.feed-override.value
>     23  float OUT                  0.57  halui.rapid-override.value
>     23  float OUT                  0.38  halui.rapid-override.value
>     23  float OUT                  0.15  halui.rapid-override.value
  • meister
  • meister
Today 07:30
Replied by meister on topic Jog speed

Jog speed

Category: AXIS

You can read the values for any of these controls, except for the jog speed control. :(
  • RMJ fabrication
  • RMJ fabrication
Today 07:02

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

I just ordered two Mesa 7I76EUs, two Mesa THCAD2s, two Hp elitedesk 800 G1 USDT with i5 2.9ghz 16gb ram 512gb ssd, and two cat 8 ethernet cables. So I really want to keep trying until I have a working system. This is my third attempt at trying to achieve a working plasma table and so far I have only got to use my machine for five minutes at a time at most. I really appreciate the amazing support from you all
  • grossm5000
  • grossm5000
Yesterday 00:44
Replied by grossm5000 on topic Differential encoder hard crashes the PC MESA7i77

Differential encoder hard crashes the PC MESA7i77

Category: Driver Boards

i am full speed ahead on the dell optiplex 5050...i will mess with the Asus later, probably with a different machine, Right now, I just need this thing to be operational to boost morale a bit :)

I am thinking ill probably get another 7i77 because i already have a 6i25 and I am eyeing up a fadal VMC40
  • ALS
  • ALS
Yesterday 22:13
Jog speed was created by ALS

Jog speed

Category: AXIS

Hi guys, I'd like to know how to read the value of the jog speed component as shown in the attached image.   
  • rodw
  • rodw's Avatar
Yesterday 19:56

LinuxCNC 2.9 / Debian 12 RT – EtherCAT Master Setup für 750W Servo gesucht

Category: Deutsch

Hi Rodw, 

Your link to the page is gone. 

Wasn't me. Search for @MrRodW on youtube
  • justincase79
  • justincase79
Yesterday 16:26
Kollmorgen AKD option code was created by justincase79

Kollmorgen AKD option code

Category: EtherCAT

Hi all

I have found a Kollmorgen servo drive with ethercat that seems to match my requirements, the part number is AKD-P00606-NBEC-0051. But I am not able to find any info on the option code -0051, anyone knows?
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