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Should be done in CAM, not in LinuxCNC.
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Seems strange to do that on every cut, although i had a Hypertherm that would need a bit of a pause only on short cuts, but 3 sec. max. so i added that to Inkscape.

It is almost certainly pssible, but probably not particularly easy to set up.

Why did you decide to switch from Mach 3 to LinuxCNC?

Set the HOME_FINAL_VELOCITY to something smaller.
If they are not in the ini file, add them for each joint.

I'm not sure if you were asking me to upload a video to YouTube showing what is happening - but that's what I did. The video link is here:

youtube.com/shorts/D5WTf5WWpfo

It's very hard to 'see' or hear - but as part of the homing function, the axis slowly approaches the limit switch, then moves away, then back and finally 'jumps' away from the switch.

I tried changing the MAX_ACCELERATION setting in the .INI - in both the AXIS_X and JOINT_0 sections. I halved them but it made no difference. I also attempted to move the sliders at the bottom of the LinuxCNC screen (below the jog section) way down one at a time - but that made now changes.

If I try to run even a simple shape (gcode for a small rectangle) it just 'locks up' like you see in the video when I attempt to press the 'SHIFT-(any arrow).

I'm just buffalo'd - I cannot figure it out.

Arden

Hi All,

I am in the process of converting our workshop homebuilt plasma table from MACH3 to LinuxCNC.
So far all the basic things work except for the plasma torch timing. The particular torch & inverter we have
needs a minimum of 15 second delay from the end of one cut to the start of the next. In MACH3 we have a
M3 macro that takes care of that. Is there a feature in QtPlasmaC / plasmac that can do something similar.?
I can do it using the retry logic - but that usually wastes a lot of time between cuts.

Scott.

The expansion board is "plan to sell it" but the prototypes is in making, so its need more time.

Well, you were right. I had to use the modified parameters in the DH method.

What version of linuxcnc are you using?
Can you post your config files?

Nein, bei der Y achse ist die HOME_SEARCH_VELOCITY negativ:

Das Problem mit den Limiten wird aber erst sichtbar werden, wenn die Achsen erfolgreich referenziert sind.
Für das eigenliche Referenzieren ist wichtig, dass 'joint.n.home-sw-in' False ist wenn der Referenzschalter nicht aktiviert ist.

Verstehe ich nicht bei der Y Achse habe ich die selben Einstellungen

Deine Einstellungen widersprechen sich.


bedeuten, dass der Referenzschalter am positiven Ende der X Achse angebracht ist.

Wenn das so ist dann müssten aber

When I open the axis sim the units are inch, when I open the axis_mm sim the units are mm.

In the [TRAJ] section of axis the LINEAR_UNITS are inch and in the axis_mm the LINEAR_UNITS are mm.

JT

I was able to get the spindle torque figured out. This is how I did it:

loadrt scale names=spindle_load_scale,spindle_rpm_scale
setp spindle_load_scale.gain 10
setp spindle_load_scale.offset 0
net spindle-torque nyx.0.servo-05.trq-fb => spindle_load_scale.in
net spindle-load spindle_load_scale.out => qtpyvcp.spindle-load-indicator.in-f
setp qtpyvcp.spindle-load-indicator.max-val 150
setp qtpyvcp.spindle-load-indicator.min-val 0

HalloIch habe eine Problem mit  der Referenzierung meiner X Achse.Z und Y fahren richtig , die X-Achse fährt auf den Schalter bleibt kurz stehen und fährt dann in die selbe Richtung.   Egal ob die Vorzeichen bei Home_latch_vel   in minus oder plus mache . Wenn ich Manuel  in die richtige Richtung fahre  ich ins Minus.Anbei meine Einstellungen in der ini.
[AXIS_X]
MAX_VELOCITY = 166.666666667
MAX_ACCELERATION = 1000.0
MIN_LIMIT = 0.1
MAX_LIMIT = 315

[JOINT_0]
TYPE = LINEAR
HOME = 10.0
FERROR = 10.0
MIN_FERROR = 1.0
MAX_VELOCITY = 166.666666667
MAX_ACCELERATION = 1000.0
# The values below should be 25% larger than MAX_VELOCITY and MAX_ACCELERATION
# If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger.
STEPGEN_MAXVEL = 180
STEPGEN_MAXACCEL = 1500
# these are in nanoseconds
DIRSETUP   = 2500
DIRHOLD    = 2500
STEPLEN    = 2500
STEPSPACE  = 2500
STEP_SCALE = 640
MIN_LIMIT = 0.1
MAX_LIMIT = 315
HOME_OFFSET = 0.000000
HOME_SEARCH_VEL = 3.0000000
HOME_LATCH_VEL = -0.500000
HOME_FINAL_VEL = 2.000000
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS=yes
HOME_SEQUENCE = 1
 mfg 
Hilton
 

Hello, friend. First of all, congratulations on successfully using NVEM V5 on linuxcnc.
I have the same control card as yours, but I read scotta's reply and read the 230 pages, but still can't find a solution, and I don't see a complete process. Can I ask for your help?