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I could repeat that.
It was MaxAcceleration that had a too low value 1e6, now 1e8.
This only matters if one gets gravel sound from the motors.
Setting MaxAcceleration slightly above real max acceleration reduces that significantly.
Otherwise, there is no harm to set it very high. Set too low and it can't accelerate up to speed fast enough.
Pushed a commit, please update the eeprom. Firmware is the same.

I also added an axis_mm.ini config for metric units for testing. 

Jianken has a servo driver they recommend (pre-program) for this type of spindle. Just ask them for it and if they can offer it with an EtherCAT interface.

Subroutines 'may only be called after they are defined'.
linuxcnc.org/docs/html/gcode/o-code.html

For now, I think I'll test it this way.
Later, I can make a support from cut aluminum plates.

I've also ordered the plasma source.
Any other tips and tricks? 

 

 

statusword is 4647, means the bit4 (Voltage enabled) is 0.
therefore your opmode is not set to be 8.

try remove sdoconfig lines in xml. I'm not sure if that's the reason.

the both ways have the same statusword, but their execution timing may not be the same, I'm not sure ^_^

RPI 4B 4GB with Gmoccapy 2.9.4

First efforts at using G10 L2, and subroutines.

The attached code produces two arbitrary short curves.
Simulation only, steppers off.

1) Spent hours chasing down anomalous z value when this code executed.
  It seemed like G10 needed full population of values to avoid ambiguous DRO:
   - G10 L2 P1 x0 y0 z0 R0 to get sensible G54 datum point.
  Is this always the case ?
  Eventually I discovered persistent parameters that had incorrect values.
  Cleared them, and now all good.
  I will ensure in future that the start-up procedure includes a check on parameters.
   
2) My O100 subroutine must be located prior to what I call the "main".
  The main short x20 y20 move checks that the main executed before the subroutine.
  If I position O100 after main, the Gmoccapy editor refuses to save the file.
  This seems odd to me, but I cannot see my error.
  What is the correct way to use subroutines ?
  
John. 

@mBender

You can simply copy the directory and use it, then enter the updates. It's the same as a ‘do not overwrite’ switch.

If you send me your configuration and your edited files, I can see if there is a way to integrate this into the json-configuration.

with these settings, axis moves perfectly,
control word is 1111 = 15
status word is 1001000100111 = 4647,
so they are same

1. they are all in OP state,


2. when I move X axis target position is increasing or decreasing, but actual position is not,
all motors waiting in enabled state

Hi Giovanni,
I went back to this... and now turning works!
The issue before was it wouldn't allow negative values for E_Z.

I did do the following:
sudo apt update
sudo apt upgrade
dpkg -i  linuxcnc-uspace_2.9.4_amd64.dev
added from ncam import NCam to /usr/lib/python3/dist-packages/gladevcp/hal_pythonplugin.py

So in upgrading from 2.9.3 to 2.9.4 I have no idea what changed, but something did. Sorry for the bum steer.

Thanks for your help. Cheers!

What do you mean "imports" ?
I would think that a more modern approach to parsing could be a good thing to get more people interested in working on the code.

Chris

Hey, I need some help.
   I have configured a machine  using LinuxCNC, and the joints are equipped with absolute encoders. Now, I want to achieve the following: Point A is the zero-count position of the encoder, but I would like to set Point B, which is offset 200mm from Point A, as the G53 origin. How should I configure this?

Here is my ini configure:
[JOINT_1]
TYPE = LINEAR
MAX_VELOCITY = 1200
MAX_ACCELERATION = 2000
#       MIN_LIMIT = -10.0
#       MAX_LIMIT = 10.0
HOME = -10
HOME_ABSOLUTE_ENCODER = 2
HOME_OFFSET = 35
HOME_SEARCH_VEL = 0
HOME_LATCH_VEL = 0
HOME_IGNORE_LIMITS = NO
HOME_USE_INDEX = NO
HOME_SEQUENCE = 1
VOLATILE_HOME = 0

But the problem is when I homing the axis, the joint->motor_pos_cmd whill change suddenly.  which cause the joint move suddenly. It is particularly dangerous.

Thank you for ur help!
    

So, Jianken has a permanent magnet spindle with an encoder, and I am trying to figure out what drive I can try with it so I can rigid tap with linuxcnc.

Specs:

4 poles
800hz / 24000rpm base speed
384 pulse ABZ quadrature encoder.
3.7kw S1

Ideally id like an ethercat drive, and tap at up to 2000-6000rpm for tiny threads. Basically this is an AC servo drive as opposed to a VFD needed although there some hybrid ish drives I've seen that might work.

Note most drives in north america will be 599hz restricted, so that's not going to be too helpful.

budget is in the $500 or less range ideally.

Anyone got an idea for what to look at?
 

Two days ago i noticed this happening, but i thought the uploaders were doing it, apparently not.

BaxEDM uses LinuxCNC for the EDM machine he builds and sells and as far as i know everything except the power source he makes readily available, although i never checked.
There are many other using it, but usually hard to find, try youtube.

see the description it has a link to a lengthy forum thread.