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  • ihavenofish
  • ihavenofish
Today 04:50
Replied by ihavenofish on topic Ethercat random jitter fix

Ethercat random jitter fix

Category: EtherCAT

Did a bit of digging. not related to my issue, but a trend did seem to crop up and Id like to see if it holds as it might start to narrow down the search for a solution.

What network interface are you using? Beckhoff only really supports a few intel select chips for ethercat. They flat out block realtek in twincat for real time motion.

So I want to know if there is a strong indication people with these issues are on unsupported network interfaces, or it's happening across all of them including the intel 210/211

Thanks.
  • ihavenofish
  • ihavenofish
Yesterday 02:13
Replied by ihavenofish on topic Ethercat random jitter fix

Ethercat random jitter fix

Category: EtherCAT

I've never experienced any form of gravelly sound in my servos.

I do get the servos resonating under linuxcnc, when they are stable in the omron software. Is this the same core problem, or is it unrelated (a different bug)? The resonance goes away when moving above a few inches a minute.

My only other issue is sometimes there is a timing issue on start up where the drives will repeatedly cycle op states. happens on in 10 starts maybe.
  • Dave3891
  • Dave3891
Yesterday 02:12

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

Category: Computers and Hardware

I still have to port it to the main branch, but it already works in dev.

www.youtube.com/shorts/7ieYCgcRN9Q
 

Do you have an example config for this setup? I just installed the dev branch and wanted to try out the modbus spindle control with buttons like that video but I wasn't sure what plugin to use and how to connect the hal. Dev branch is looking really good btw, I am really excited to try out the remote devices over rs422, I was thinking of building a plasma controller for a THC to start with
 
  • cmorley
  • cmorley
Yesterday 02:10
Replied by cmorley on topic qtdragon_hd updated handler issue

qtdragon_hd updated handler issue

Category: Qtvcp

Fix was entered into 2.9 and master on Jan 9th

github.com/LinuxCNC/linuxcnc/commit/f0e3...fdb6f4768798b4bf4be2

Chris
  • mooser
  • mooser
Yesterday 02:04
Replied by mooser on topic 7i84u - Mode 2, MPG and power connections

7i84u - Mode 2, MPG and power connections

Category: Driver Boards

I'm just using the default x1 for this but good to know for down the road.

I've finished moving all the other inputs over and they are all working again. Tomorrow I'll get the outputs moved over and then I can work on getting the spindle and it's encoder connected which is what started all of this in the first place.
Simulating a VFD / encoder on the bench is proving to be a lot more work than I originally thought.
M
  • PCW
  • PCW's Avatar
Yesterday 02:01
Replied by PCW on topic pin locations

pin locations

Category: General LinuxCNC Questions

To get the variable voltage, you set up the TB2 PWM output for spindle use in pncconf
The 7I96S manual shows the TB2 pinout of the analog output

7I96S Spindle + goes to a 10 or 12V supply (on a VFD this comes from the VFD itself)
7I96S Spindle out is the 0--10V analog voltage that goes to the Drives VIN
7I96S Spindle- goes to the drives COM pin and the negative pin of the 10 or 12V supply
  • ihavenofish
  • ihavenofish
Yesterday 01:54
Replied by ihavenofish on topic Brother carousel encoders

Brother carousel encoders

Category: CNC Machines

unfortunately i dont have that info hand. it is probably in the tc229 thread.
  • PCW
  • PCW's Avatar
Yesterday 01:48

7i84u - Mode 2, MPG and power connections

Category: Driver Boards

These are parameters that apply to normal high speed encoders:

#setp hm2_7i96s.0.7i84.0.0.enc0.counter-mode 0
#setp hm2_7i96s.0.7i84.0.0.enc0.filter 1

Not sserial devices

There is a count mode parameter for sserial MPG counters so you can choose 1x mode or 4X mode
  • grandixximo
  • grandixximo's Avatar
Yesterday 01:15 - Yesterday 01:53
Replied by grandixximo on topic Ethercat random jitter fix

Ethercat random jitter fix

Category: EtherCAT

@TAKUYA
@Atsu

please check the value of the parameters lcec.0.pll-step
You can do so with this command

halcmd show param lcec.0.pll-step 

This parameter will be set at 1000 automatically if you have RTAPI_TASK_PLL_SUPPORT

also I have updated again the repo

if you could be so kind as to download, build and test again, thank you

github.com/grandixximo/linuxcnc-ethercat
  • tommylight
  • tommylight's Avatar
Yesterday 00:22

Rufus found problem with linuxcnc_2.9.8-amd64.hybrid.iso -- missing files

Category: General LinuxCNC Questions

I might have not been clear on my previous post, Ventoy and Rufus are not the same thing nor do they serve the same purpose"
Ventoy = bootable USB drives, install once, use as you see fit just by copying and ISO files to it, multipe ISO and IMG files supported, all on the same USB and all bootable from a menu
Rufus = Balena etcher = tools to write an ISO/IMG file to a USB = single ISO/IMG
  • tommylight
  • tommylight's Avatar
Yesterday 00:16
Replied by tommylight on topic Inaccurate milling - what could it be?

Inaccurate milling - what could it be?

Category: Basic Configuration

Upload the pictures here on the forum, not on third party websites, way to many scripts running on those websites.
  • vetsin
  • vetsin
Yesterday 23:30

Inaccurate milling - what could it be?

Category: Basic Configuration

I went to make what should have been a 29.534mm hex bolt, however it came out very off spec. I've no real idea why.  I did go through the process of checking backlash and ensuring my velocity was alright a long time ago -- but honestly it's been a very slow project and I forget what I did. Any ideas what the reason for the problem could be? What should I check first?
 
  • rodw
  • rodw's Avatar
Yesterday 23:25

Rufus found problem with linuxcnc_2.9.8-amd64.hybrid.iso -- missing files

Category: General LinuxCNC Questions

@RODW,

Have you tried Ventoy?

I've tried a number of tools and the only one that has never let me down is balena etcher. It even works with raspberry pi images!
  • tommylight
  • tommylight's Avatar
Yesterday 22:45
Replied by tommylight on topic 7i84u - Mode 2, MPG and power connections

7i84u - Mode 2, MPG and power connections

Category: Driver Boards

(Just realized I posted this into general instead of under boards, maybe I can get someone to move it.)

Done.
Thank you.
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