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  • Jensner
  • Jensner
24 Oct 2024 18:08
  • Jensner
  • Jensner
24 Oct 2024 18:06

Unexpected realtime delay on task 0 with period 1000000

Category: QtPyVCP

OK, i hope it is done...

--- 10.10.10.10 ping statistics ---
54124 packets transmitted, 54124 received, 0% packet loss, time 54165ms
rtt min/avg/max/mdev = 0.050/0.109/2.531/0.048 ms
  • The Egyptian
  • The Egyptian
24 Oct 2024 18:05
Replied by The Egyptian on topic About lathe spindle encoder

About lathe spindle encoder

Category: General LinuxCNC Questions

i'm trying to do my best but i hope to find some help here
all i want is to read encoder away of pc becouse parallel port is too slow
i'm trying to use arduino becouse it's the only hardware available in my country , i built a cnc lathe it works very good but when i do some thread the encoder read well in slow speed under 500rpm but when speed up the encoder out of rang and the machine stops
any help on this case
  • Lcvette
  • Lcvette's Avatar
24 Oct 2024 17:59

Unexpected realtime delay on task 0 with period 1000000

Category: QtPyVCP

@PCW who would be the person group best suited to fixing it, and do they know about it? is this a linuxcnc thing or a debian thing?
  • mylastpolo
  • mylastpolo
24 Oct 2024 17:54 - 24 Oct 2024 17:59
Fanuc Servos Single Phase was created by mylastpolo

Fanuc Servos Single Phase

Category: Computers and Hardware

Hello everyone.
I am in the early stages of undertaking a CNC conversion on a manual lathe.
I have a Raspberry Pi 5 with Linux CNC installed, I have a pair of Fanuc servos with matching amplifiers removed from a suitably sized lathe and a manual lathe running it’s original 3 phase motor via a Jaguar VFD on a single phase UK supply.
I am quite familiar with motor control but servos are new to me, my question is would it be possible to run my servos/amplifiers on single phase?
I am aware of rotary phase converters but there must be other options, what type of servo are other people using?
The spindle motor is 3hp so that gives you an idea of the size of the lathe.
Thanks in advance.
  • PCW
  • PCW's Avatar
24 Oct 2024 17:52

Could use some help with a tandem axis homing issue

Category: Basic Configuration

I guess it could also be that the switch was overrun if this is possible.
Contact bounce could also be an issue (you could check this easily by setting
the "slow" parameter of the inm bits used for the home switches)
  • tiagounderground
  • tiagounderground
24 Oct 2024 17:34
Replied by tiagounderground on topic linuxcnc trajectory planner

linuxcnc trajectory planner

Category: General LinuxCNC Questions

it seens to be working now

gcode loaded items: 14
gcode ready to be processed in thread.
set your gui maxvel to zero. Then the machine won't move when saving the gcode.
init curves done.
trim curves done.
added inbetween segments:10
Gcode file ready, filename:../../../cmake/validate_1142171910.ngc
thread completed.
  • Stran_ge
  • Stran_ge
24 Oct 2024 17:32 - 24 Oct 2024 17:48
Spindle servo step/dir Problems was created by Stran_ge

Spindle servo step/dir Problems

Category: Advanced Configuration

Hello People,i have a 3,7kw Servo from szgh that i would like to use as my Spindle Servo via step/dir(external pulse control).
To be more precise i am using a original Mesa 7i95 and the SZGH Servo is SZGH09-2-24-3,7/5,5-4-1500 with a max speed of 15000 rpm.
I can send  the manual for the spindle servo if s1 feels very motivated to read that.

I am a novice with linuxcnc but i watched a video from talla83 and suprisingly got the spindle to turn. I am able to adjust speeds/direction with the according commands.

There is some stuff that does not work.
First vmc_2.halof all using M3 turns the spindle ccw and m4 turns it cw. It should be the other way around. I checked the wiring first and everything seems to be correct as seen in the table for the encoder.
SZGH-ServoMesa 7i950A


0A+ QA3
0A- /QA3
0B+ QB3
0B- /QB3
0Z+ IDX3
0Z- /IDX3

I also checked if the step/dir was correct and it is(polarity too).
If i run the spindle via mdi M3 s200 i get this in halshow (attached picture M3 S200 with positive rps)
If i run the spindle via mdi M4 S200 i get this in halshow (attached picture M4S200 with negative rps)

What i also noticed in Halshow is that whenever i command the rpm to go over 300 the spindle at speed signal does not go true anymore.

I really hope someone can help me here or give me some tipps, i have checked and tried many things but nothing really helped.

Best regards
Nils 

 

File Attachment:

File Name: vmc_2.ini
File Size:7 KB

 

File Attachment:

File Name: vmc_2.hal
File Size:11 KB

 
 
  • tommylight
  • tommylight's Avatar
24 Oct 2024 17:26

Russian machine tool company that uses LinuxCNC with Probe Basic

Category: QtPyVCP

Tormach's PathPilot CNC controller software is built on top of LinuxCNC.

Tormach also used Mesa boards for everything, they still do but i think they started making copies of them in some china factory, has to be confirmed though.
-
A big china company that manufactures automation stuff like robotic paletizers use modified LinuxCNC with a simple GUI for a small touchscreen. I dived into the inner workings and sure there where the hal and the ini and examples, all from probably 5-7 years ago. Had very limited time so could not get more info.
  • Aciera
  • Aciera's Avatar
24 Oct 2024 17:20
Replied by Aciera on topic linuxcnc trajectory planner

linuxcnc trajectory planner

Category: General LinuxCNC Questions

USRMOT: ERROR: command 30 timeout


This error message can be ignored.
  • tommylight
  • tommylight's Avatar
24 Oct 2024 17:18

Could use some help with a tandem axis homing issue

Category: Basic Configuration

Start over, do NOT change stuff at random in the wizard, like:
-servo period, leave it at is,
-input values for your machine for microsteping, type of reduction, etc etc
-input values for distance to suit your machine
-Z axis should be the first to home so it does not hit something when other axis home, almost always should be home sequence 0
-default values will most probably not work as you have them now
-I am pretty sure you have the tandem axis with one motor spinning in the wrong direction, if that is the actual ini you are using.
When you run the new config, press home Y for the tandem axis and KEEP your hand above the ESC key in case one side moves in the wrong direction.
  • tommylight
  • tommylight's Avatar
24 Oct 2024 17:01
Replied by tommylight on topic Base Thread Over 100k

Base Thread Over 100k

Category: General LinuxCNC Questions

RX480 and RX580, both 8GB versions, and both work for me, made by XFX and Sapphire, but they are not cheap as they can still play AAA games due to big amount of memory.
  • Lcvette
  • Lcvette's Avatar
24 Oct 2024 17:00

Question on Step 4 of the APT install instructions

Category: QtPyVCP

the hardware may or may not be able to run the correct version, impossible to know until you check. this is pc hardware for graphics. qtpyvcp uses VTK for the back plotter which is different than the stock linuxcnc plotter. if the hardware isn't compatible, a graphics card can often times resolve if you want to use PB, otherwise QTDragon may be a better fit.
  • tiagounderground
  • tiagounderground
24 Oct 2024 16:58 - 24 Oct 2024 17:14
Replied by tiagounderground on topic linuxcnc trajectory planner

linuxcnc trajectory planner

Category: General LinuxCNC Questions

halui (62639) halui: machine 'LinuxCNC-HAL-SIM-AXIS'  version '1.1'
Found file(lib): /home/cnc/linuxcnc_trajectory_planner/lib/hallib/core_sim.hal
Found file(lib): /home/cnc/linuxcnc_trajectory_planner/lib/hallib/sim_spindle_encoder.hal
Found file(lib): /home/cnc/linuxcnc_trajectory_planner/lib/hallib/axis_manualtoolchange.hal
Found file(lib): /home/cnc/linuxcnc_trajectory_planner/lib/hallib/simulated_home.hal
Found file(lib): /home/cnc/linuxcnc_trajectory_planner/lib/hallib/check_xyz_constraints.hal
Found file(REL): ./cooling.hal
./cooling.hal:7: Pin 'iocontrol.0.lube' does not exist
Shutting down and cleaning up LinuxCNC...


USRMOT: ERROR: command 30 timeout
emcMotionInit: emcTrajInit failed
Note: Using POSIX realtime
LinuxCNC terminated with an error.  You can find more information in the log:
    /home/cnc/linuxcnc_debug.txt
and
    /home/cnc/linuxcnc_print.txt


now it shows this error
./cooling.hal:7: Pin 'iocontrol.0.lube' does not exist


maybe in conflict with my old configs? i see the ini file is in the same location from my stable linuxcnc config


edit2
deleting the old files made it work but now there is a new error, but linuxcnc started

USRMOT: ERROR: command 30 timeout
emcMotionInit: emcTrajInit failed
link (updating variable file): No such file or directory


edit 3
another error
Reading state information... Done
E: Unable to locate package libbrotlicommon1
-- Configuring done
-- Generating done
-- Build files have been written to: /home/cnc/linuxcnc_trajectory_planner/cmake/libclothoids/build


 
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