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Does it include the speed controller or just the spindle?

I succeeded LC10E driver homing with incremental encoder + origin, limit switch with my own homing codes.

I added HOME_FINAL_VELOCITY to the AXIS_X / JOINT_0 section(s). I set it to match the value for the HOME_SEARCH_VEL and HOME_LATCH_VEL. I also increased the HOME_OFFSET to -.500000 to make sure there was some visible movement. Nothing changed - it locked up trying to move the axis.

Here is that section of the INI file - in case any of the other entries look odd.

#*** AXIS_X *******************************
[AXIS_X]
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0

[JOINT_0]
TYPE = LINEAR
HOME = 0.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
STEPGEN_MAXACCEL = 37.5
SCALE = 8000.0
FERROR = 0.05
MIN_FERROR = 0.01
HOME_OFFSET = -.500000
HOME_SEARCH_VEL = -0.050000
HOME_LATCH_VEL = -0.050000
HOME_FINAL_VELOCITY = -0.050000
HOME_IGNORE_LIMITS = YES
#******************************************

Should be done in CAM, not in LinuxCNC.
-
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.

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