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  • rodw
  • rodw's Avatar
01 Nov 2025 09:27

New ethercat / probe basic control for minimonster

Category: CNC Machines

Sounds like you are set for internal homing. If you want to do Linuxcnc homing, use generic pin types which you can set in your XML and don't load a homemod. This still works well.
  • ihavenofish
  • ihavenofish
01 Nov 2025 09:19
Replied by ihavenofish on topic New ethercat / probe basic control for minimonster

New ethercat / probe basic control for minimonster

Category: CNC Machines

ok, so

machine off:
controlword = 4
statusword = 2672
opmode = 8

machine on:
15
6711
8

press home all and instant crash and fault

saw something about forcing opmode 8, however this changes nothing. still full speed into the end stops.

another suggestion is to just inhibit motion, but that seems not right either. Need to find out WHY it is moving.

so if i home and crash, is there something in the controlword and statusword i should see? it happens in a few ms.
  • Hakan
  • Hakan
01 Nov 2025 08:49

New ethercat / probe basic control for minimonster

Category: CNC Machines

halscope and record statusword and controlword.
  • ihavenofish
  • ihavenofish
01 Nov 2025 08:19
Replied by ihavenofish on topic New ethercat / probe basic control for minimonster

New ethercat / probe basic control for minimonster

Category: CNC Machines

well we sorta already did that. there is no setting that doesnt either flicker the drives or slam the axis. like it does't respect search or latch vel at all.

that has to be a clue. something ELSE is making it home. maybe it IS doing internal drive homing?
  • Hakan
  • Hakan
01 Nov 2025 08:14

New ethercat / probe basic control for minimonster

Category: CNC Machines

"Divide and conquer".
Comment out everything except one single axis and try until you find it.
  • ihavenofish
  • ihavenofish
01 Nov 2025 08:13
Replied by ihavenofish on topic New ethercat / probe basic control for minimonster

New ethercat / probe basic control for minimonster

Category: CNC Machines

Yes it does have ethercat drives. And modbus nonsense as well.

 

bah!
haha. clearly i've botched something somewhere. i just cant see it.
  • ihavenofish
  • ihavenofish
01 Nov 2025 08:11
Replied by ihavenofish on topic New ethercat / probe basic control for minimonster

New ethercat / probe basic control for minimonster

Category: CNC Machines

I don't think it is a good idea to combine homing on current position with HOME_OFFSET.
That means is set's zero exactly where it is and immediately after moves to HOME_OFFSET.

ive removed that now, now, no change. also that offset is + direction and it is slamming the thing full speed into the table.
  • Hakan
  • Hakan
01 Nov 2025 08:11

New ethercat / probe basic control for minimonster

Category: CNC Machines

Yes it does have ethercat drives. And modbus nonsense as well.
 
  • ihavenofish
  • ihavenofish
01 Nov 2025 08:10
Replied by ihavenofish on topic New ethercat / probe basic control for minimonster

New ethercat / probe basic control for minimonster

Category: CNC Machines

does your lathe use ethercat drives?

this is what i had before with the pulse drives. everything was fine. And i could have sworn in my first ethercat program *before* all this modbus nonsense it was fine as well.
  • Hakan
  • Hakan
01 Nov 2025 08:10

New ethercat / probe basic control for minimonster

Category: CNC Machines

I don't think it is a good idea to combine homing on current position with HOME_OFFSET.
That means is set's zero exactly where it is and immediately after moves to HOME_OFFSET.
  • Hakan
  • Hakan
01 Nov 2025 08:06

New ethercat / probe basic control for minimonster

Category: CNC Machines

That's odd. Here is what I have in my lathe where it homes on current position.
[JOINT_0]

TYPE = LINEAR
HOME = 0.0
FERROR = 0.5
MIN_FERROR = 1
MAX_VELOCITY = 20.0
MAX_ACCELERATION = 500.0
MAX_OUTPUT = 0.0
MIN_LIMIT = -106
MAX_LIMIT = 106
HOME_SEARCH_VEL = 0
HOME_LATCH_VEL = 0
HOME_SEQUENCE = 0
  • ihavenofish
  • ihavenofish
01 Nov 2025 08:00 - 01 Nov 2025 08:01
Replied by ihavenofish on topic New ethercat / probe basic control for minimonster

New ethercat / probe basic control for minimonster

Category: CNC Machines

If I set like the table in your posts, it still moves and slams the axis into the end stops.
If I set homing sequence to -1 it flickers the drive.

I do not want any internal homing on the drive. I want no motion whatsoever.

What "normally" works is not here.
  • Hakan
  • Hakan
01 Nov 2025 07:53

New ethercat / probe basic control for minimonster

Category: CNC Machines

The docs at linuxcnc.org/docs/html/config/ini-homing.html says it
 

The cia402 component says

 For using the servo drives internal homing procedure configure your
joint homing to Home on Index Pulse only and connect the components
home Input to the index-enable Pin:


I don't see you have connected that pin.

To debug, use halscope and record controlword and statusword to and from the drive.
  • abs32
  • abs32
01 Nov 2025 07:53

[SOLVED] How to properly connect LASER and control its power?

Category: Advanced Configuration

Later I will summarize and correct the first message of the topic.
First, it turned out that it was pointless to consider the topic without taking into account the electrical component and connection diagram.
Then it turned out that neither the Snnnnn parameter nor the M68 Qnnn control the laser power as it should (the hypothesis from the message www.forum.linuxcnc.org/10-advanced-confi...-laser?start=0#92752 is not correct in part 50%).
  • abs32
  • abs32
01 Nov 2025 07:49
Replied by abs32 on topic Secondary PWM Output for LASER

Secondary PWM Output for LASER

Category: Advanced Configuration

Colleagues, here we are trying to use the Snnnnn or M68 E0 Q 0.nn commands to turn the laser on and off.

What is known about the time of their execution and delays? What is the point of using M68?
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