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  • meister
  • meister
10 Feb 2025 08:53
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

i have released a new version (dev->main),

but remember, never change a running system :)

If you update you also have to rebuild the gateware.

if you use i2c devices you probably have to change your config, it no longer runs individually but really as a bus (or several).

github.com/multigcs/riocore/blob/main/CHANGELOG.md
  • partec
  • partec
10 Feb 2025 08:41 - 10 Feb 2025 08:54
Replied by partec on topic Welding CNC-Touch sensing

Welding CNC-Touch sensing

Category: General LinuxCNC Questions

forum.linuxcnc.org/show-your-stuff/49100...routines-for-probing

Maybe illustrate your system a little? 
 
  • automata
  • automata
10 Feb 2025 08:35
Replied by automata on topic scurve trajectory planner

scurve trajectory planner

Category: General LinuxCNC Questions

Hi Grotius,
I feel that for 3 axis Gcode, your earlier method of applying 2D bi-clothoids by considering them in the plane holding the two lines should be sufficient for line-line, line-arc and arc-line cases. Only in arc-arc case, you may run into this 3D clothoid / torsion scenario.
-automata
  • Martin.L
  • Martin.L
10 Feb 2025 06:50
Replied by Martin.L on topic EtherCAT + lcec + cia402 + PID on A6-1000EC in velocity control mode

EtherCAT + lcec + cia402 + PID on A6-1000EC in velocity control mode

Category: EtherCAT

Have you guys figured out how to auto tune this servos?
  • beauxnez
  • beauxnez
10 Feb 2025 05:18 - 10 Feb 2025 05:19
Replied by beauxnez on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

same error when modifying the .ini file

 
  • cakeslob
  • cakeslob
10 Feb 2025 05:06
Replied by cakeslob on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

add this to [TRAJ] in your ini file
SPINDLES                = 3
  • akg1904
  • akg1904
10 Feb 2025 04:34
Replied by akg1904 on topic Pitch Error Compensation explanation

Pitch Error Compensation explanation

Category: General LinuxCNC Questions

Hi,Thank you for your explanation.
File Attachment:
However, I'm struggling to understand the compensation behavior in my configuration file. For example, if I specify the following compensations:10  10.1 10.08
20  20.1 20.08
30  30.1 30.08
...

When I move my machine to 30 mm, will the compensations for 10 mm and 20 mm accumulate, causing the machine to move to 30.3 mm instead of 30.1 mm? Or will the machine only apply the 30 mm compensation and move to 30.1 mm?

Regards
Abhishek
  • beauxnez
  • beauxnez
10 Feb 2025 04:13
Replied by beauxnez on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

thanks but I'm really sorry but I don't know what I'm doing (it's Chinese to me)
 I see in the qtplasmac_comp.hal file the line "net plasmac:scribe-start spindle.1.on => plasmac.scribe-start"
 should I copy it into my NVEM.hal file?
  • Lcvette
  • Lcvette's Avatar
10 Feb 2025 02:18
Replied by Lcvette on topic ProbeBasic and sidemount, retractable 3D Probe

ProbeBasic and sidemount, retractable 3D Probe

Category: QtPyVCP

I think you misinterpreted my design meaning, I mean put the tools outside along the y axis.

 
  • Grotius
  • Grotius's Avatar
10 Feb 2025 01:43
Replied by Grotius on topic scurve trajectory planner

scurve trajectory planner

Category: General LinuxCNC Questions

Hi,

I thought, mabye just start coding a clothoid lib. And try to
understand how 3d clothoids work.

I followed this paper, the same as Andrew used : 2d clothoid
Then coded chapter 4 into c code.
Was also able to look into Andrews clothoid code from where i
borrowed the gaus legendre.

With a little assistance of DeepSeek i was able to get a single 2d clothoid
running and plotted with gnu plot.

Then i turned on my experimental mode and tried to expand the signle 2d clothoid
to a single 3d clothoid.

The 3d clothoid uses torsion. To keep it simple i used simple names in the c code.

theta0 & kappa0 -> xy
theta1 & kappa1 -> z

I think the hard part is really the bi-clothoid fitting, wich has to be coded yet.

Code so far:
libclothoid

Gnu plot of single 3d clothoid:
 
  • PCW
  • PCW's Avatar
09 Feb 2025 23:37
Replied by PCW on topic Trouble tuning axis for first time, ferror doesn't go to zero after move

Trouble tuning axis for first time, ferror doesn't go to zero after move

Category: General LinuxCNC Questions

The scaling of I  is such that you need pretty large numbers
to make any visible difference
  • unknown
  • unknown
09 Feb 2025 23:30
Replied by unknown on topic From Grbl to linuxcnc

From Grbl to linuxcnc

Category: General LinuxCNC Questions

RPi5 will need to have hm2_spix driver loaded
RPi4 will need to have hm2_rpspi driver loaded
  • unknown
  • unknown
09 Feb 2025 23:24
Replied by unknown on topic LinuxCNC on Raspberry Pi 5

LinuxCNC on Raspberry Pi 5

Category: Installing LinuxCNC

sudo ping -i 0.001 -c 1000000 -f 192.168.1.1

This was pinging my router, for about 15 minutes, and I did not get a failed packet, no lockups.
  • unknown
  • unknown
09 Feb 2025 23:02 - 09 Feb 2025 23:19
Replied by unknown on topic unable to get gpio to work on Raspberry Pi 5 using latest image

unable to get gpio to work on Raspberry Pi 5 using latest image

Category: Advanced Configuration

It does work, 2 users have had a couple of users have confirmed it.
I've also confirmed myself that loading of the driver as given in the docs also works.

Taking GPIO8 out of the input list allows the driver to load correctly. Which makes sense as GPIO08 as well as GPIO07 seemed to be claimed.

section lifted from gpioinfo
"GPIO7"   "spi0 CS1"  output   active-low [used]
"GPIO8"   "spi0 CS0"  output   active-low [used]

Commenting out spi out in /boot/broadcom/config.txt "fixes" the issue.
 
halcmd: loadrt hal_gpio inputs=GPIO18,GPIO23,GPIO24,GPIO25,GPIO8 outputs=GPIO4,GPIO17,GPIO27,GPIO22,GPIO10,GPIO9,GPIO26
Note: Using POSIX realtime
halcmd: show pin
Component Pins:
Owner   Type  Dir         Value  Name
     4  bit   IN          FALSE  hal_gpio.GPIO10-out
     4  bit   IN          FALSE  hal_gpio.GPIO17-out
     4  bit   OUT         FALSE  hal_gpio.GPIO18-in
     4  bit   OUT         FALSE  hal_gpio.GPIO18-in-not
     4  bit   IN          FALSE  hal_gpio.GPIO22-out
     4  bit   OUT         FALSE  hal_gpio.GPIO23-in
     4  bit   OUT         FALSE  hal_gpio.GPIO23-in-not
     4  bit   OUT         FALSE  hal_gpio.GPIO24-in
     4  bit   OUT         FALSE  hal_gpio.GPIO24-in-not
     4  bit   OUT         FALSE  hal_gpio.GPIO25-in
     4  bit   OUT         FALSE  hal_gpio.GPIO25-in-not
     4  bit   IN          FALSE  hal_gpio.GPIO26-out
     4  bit   IN          FALSE  hal_gpio.GPIO27-out
     4  bit   IN          FALSE  hal_gpio.GPIO4-out
     4  bit   OUT         FALSE  hal_gpio.GPIO8-in
     4  bit   OUT         FALSE  hal_gpio.GPIO8-in-not
     4  bit   IN          FALSE  hal_gpio.GPIO9-out
     4  s32   OUT             0  hal_gpio.read.time
     4  s32   OUT             0  hal_gpio.write.time
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