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  • BlownCorona
  • BlownCorona
07 Jun 2025 04:40 - 07 Jun 2025 07:22
Replied by BlownCorona on topic Mesa 7i97T & LinuxCNC setup struggles

Mesa 7i97T & LinuxCNC setup struggles

Category: Installing LinuxCNC

im starting to think i might have something else going on.

with your point in the right direction and reading the documentation again, this time having had more exposure to terminology, i can find the modes and how to switch them. ive looked into the above three options and i think for now atleast i will run them as is, in torque mode.

Ive since double checked the servo drive settings and balanced it all so there is no movement when enabled. the drives also have a handy test option which internally feeds a +/-10v signal into the input for testing, this confirms the drive is set well and the motor functions very nicely. in fact the settings I landed on are near enough exactly the same as the remaining two untouched, as delivered, pulled from working machine (which much have been setup to run torque mode.

however when it comes time to have linuxcnc command movements, nothing is really behaving as i would expect, and i cant even begin to work through your above torque mode tuning process, because if i put even a 1 in the D field i get instant following error and a blip on the motor (P & I - 0), FF1 tried several 0 thru 1 ect), deadband 0.0001

ive confirmed its not runaway, because changing the sign on the scale makes that blip noticeable worse, presumably this is runway before the following error cuts it off.

the servo drive is now back in the same configuration it was when i began trying to incorrectly tune with tommys velocity mode guide so all info with reguard to some unstable movements with low P value, is still relevant, nothing useable though. Ive attached hal and ini files incase relevant.

given my struggles have quickly moved on from software installation into the seemingly typical noob hardware problems, if the mods would prefer to move this into a more appropriate channel that's fine by me. 

as always, thanks for everyones help, as a try DIYer, please know how much it hurts to ask for help and how needed that help is, if im asking 
File Attachment:
  • Kieran
  • Kieran
07 Jun 2025 04:13
Replied by Kieran on topic weird behavior: homing X messes up Y

weird behavior: homing X messes up Y

Category: EtherCAT

DUH...... I think i fixed it.

COORDINATES = X
changed to
COORDINATES = XY


KINEMATICS = trivkins coordinates=X
changed to
KINEMATICS = trivkins coordinates=XY

oops.

weird how it didnt error out.
  • Kieran
  • Kieran
07 Jun 2025 04:05
Replied by Kieran on topic weird behavior: homing X messes up Y

weird behavior: homing X messes up Y

Category: EtherCAT

Warning: Spoiler!




Warning: Spoiler!


Warning: Spoiler!
  • Kieran
  • Kieran
07 Jun 2025 04:01
weird behavior: homing X messes up Y was created by Kieran

weird behavior: homing X messes up Y

Category: EtherCAT

Hey Guys. Im working on my A6 stepperonline servos on the bench currently. I got one axis going. Im trying to get a second axis involved. I got it working and linuxcnc launches without fault. I can jog both axis slowly before homing. I can home joint1 (Y) and still able to slowly jog. once I home X, I can jog it quickly, but cant jog Y at all. and if I fight the Y servo (its holding position), there doesn't appear to be any encoder feedback either once x is homed.
  • epineh
  • epineh
07 Jun 2025 03:42
Replied by epineh on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

Hmm I am usually more of a bad influence than inspiring but I'll take it haha.

That sounds awesome, are you aiming at using this for faster inputs/outputs that aren't suitable for shift registers/modbus/I2C ?

So theoretically if someone had a 6 axis closed loop to the controller milling machine the second FPGA could be used for the encoder feedback and maybe some extra IO?
  • kworm
  • kworm
07 Jun 2025 02:50
QTPlasmac pierce delay handling was created by kworm

QTPlasmac pierce delay handling

Category: Plasmac

Hi,

I just got QTPlasmac (2.10 using buildbot instructions) going and starting to make some test cuts.  My plasma cutter (Thermal Dynamics Cutmaster 60i) has a ~2 second delay for gas purge before the pilot starts.  That means I have to add whatever actual pierce delay I need to the two seconds making it, for example, something like 2.5 seconds. After the cut is made there is post flow for 20 seconds and if you start a cut while post flow is active there is no delay and the pilot lights immediately making the pierce delay too long.  When the post flow stops after 20 seconds then the 2 second delay is back.  I know I could have two different materials... one for first cut and one for additional cuts and have my Fusion 360 post processor change materials but that seems like a bit of a hack.  Is there a way I could handle this in hal/script/component?
  • tommylight
  • tommylight's Avatar
07 Jun 2025 02:39 - 07 Jun 2025 02:41
Replied by tommylight on topic Position: relative expected

Position: relative expected

Category: General LinuxCNC Questions

MaHa, why you up so early? :)
4:40AM here, going to bed right now.
And whatever the reason you are up so early, i hope it's a good one.
  • MaHa
  • MaHa
07 Jun 2025 02:16
Replied by MaHa on topic Position: relative expected

Position: relative expected

Category: General LinuxCNC Questions

HP 800 G2 SFF and HP 800 G3 SFF with Intel network are perfect with Mesa cards. No issues, except replacing a noisy CPU fan
  • Dave2024
  • Dave2024's Avatar
07 Jun 2025 02:00
Custom timed notifications was created by Dave2024

Custom timed notifications

Category: General LinuxCNC Questions

How’s it going.  So I recently switched over to GMOCCAPY from the traditional Axis interface.  I have to say it looks much nicer and I like how tool touchoff and setting g54 home positions is much more intuitive.  In Axis I always made the mistake of not selecting the correct joint when doing touchoff and accidentally set my tool length offset as a X or Y offset shift then go crash the machine during a run.  Anyways besides all that, I’m now wanting to go to the next level and start customizing the GMOCCAPY interface.  I want to start out with something simple like a machine running timer alert.  This would be an alert that tells me to oil the ways after 10hrs of runtime.  This way the oiling is perfect and scheduled saving on way oil.  Stuffs not cheap lol What I’m trying to make happen is a function that’s tied to the run button that then activates a timer and stores the time running in a file on the hard drive.  When the total time running = 10hrs reset the time and display a message saying: “The machine has been running for 10hrs now.  It is time to Oil the ways.”  Where should I start on this?  I know there’s a hal.program-is-run and a time.N.start.  Then what do I do?  time.N.start <= hal.program-is-run?  Sorry I’ve never programed python much but have some C#, Java, VB, SQL, C++,and XLM skills.  My collage sucked and never let us program in Python.
  • tommylight
  • tommylight's Avatar
07 Jun 2025 01:13
Replied by tommylight on topic IO Questions around mixing IO between Ethercat and Pi 5?

IO Questions around mixing IO between Ethercat and Pi 5?

Category: EtherCAT

Or using "voltage dividers" made from 2 resistors for each input also works fine, but care must be taken to prevent the lower side resistor from disconnecting.
It does induce more current draw from outputs though, but i know for sure in most cases all is OK.
  • tommylight
  • tommylight's Avatar
07 Jun 2025 01:10
Replied by tommylight on topic Position: relative expected

Position: relative expected

Category: General LinuxCNC Questions

Oh yes, i did disagree with that statement, silently, as he might have experience with "Home" or "Office" types of HP computers and those are frankly cr@p, but "Enterprise" HP computers and workstations are magnificent in every way and some have 700W or 1000W power supplies despite no way of cramming stuff in it to require that kind of power. Same goes for Dell and Lenovo and Fujitsu and older Fujitsu-Siemens, all of those in the "Enterprise" edition work perfectly, no matter how old, and using them 24/7 is a given.
And yes, there are many of us here using HP even on industrial machines, as again, they never fail.
  • tommylight
  • tommylight's Avatar
07 Jun 2025 01:02
Replied by tommylight on topic W5100S-EVB-PICO stepgenerator and encoder driver

W5100S-EVB-PICO stepgenerator and encoder driver

Category: Driver Boards

Usually connecting +Z or -Z from encoder to Z input should work fine.
Also, depending on + or - you get active low or active high.
Might have issues with "open collector" type outputs from encoder, can be easily fixed with a resistor between +V encoder power and input/encoder output.
  • Lcvette
  • Lcvette's Avatar
06 Jun 2025 23:45
Replied by Lcvette on topic New "BIG" Probe Basic Release for Develop Branch Incoming!

New "BIG" Probe Basic Release for Develop Branch Incoming!

Category: QtPyVCP

not sure what you are referring too with G43, it changes here but you must have a tool called with it to set the offset. no tool in the spindle will give no g43. here with tool in the spindle g43 works as expected and can swap back and forth between G43 and G49 and it shows as expected in the machine status column on the right side.

as for the probe question, im not sure what you are meaning? all probing in probe basic is predicated on using a wired probe or tool setter that can sent a signal to linuxcnc letting it know a probe move and event have occurred and been recorded.

can you elaborate on both above topics so i can better test and answer?
  • COFHAL
  • COFHAL
06 Jun 2025 23:45
Replied by COFHAL on topic W5100S-EVB-PICO stepgenerator and encoder driver

W5100S-EVB-PICO stepgenerator and encoder driver

Category: Driver Boards

That's what I thought, the problem is that many drivers have differential feedback encoder outputs and I would have to use another IC to convert +Z - Z to Z.
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