Dynomotion

Group: DynoMotion Message: 12924 From: cnc_machines Date: 3/8/2016
Subject: System Stability

Greetings,


We have 11 CNC machines in our factory using KFlops running on two shifts. The issue that we are having is with system stability. Often times one of the computer locks up. In some cases I question the stability of the OS, but in other circumstances it is only KMotionCNC that is frozen. After several reboots it starts working again, but is causing downtime. I am looking for ways to solve these problems.


  1. OS Stability - Is there a way to have KMotion CNC work on Linux? I am wondering if this will ever be a supported platform?
  2. KMotion Freezing - Anyone have ideas on what could be causing this to freeze? Are there known bugs with fixes?
Thanks,

Scott
Group: DynoMotion Message: 12925 From: Tom Kerekes Date: 3/8/2016
Subject: Re: System Stability
Hi Scott,

Sorry to hear this.  Can you provide any more clues? When does it happen?  While idle?  Only during a long Job?  Anything special about your Jobs?  What Version are you using?  What is your machine configuration?  What OS are you using?  How many systems have the issue?  Are they all the same configuration?  Does Task Manager indicate anything unusual (ie lots of memory used?).  Can you kill KMotionCNC and restart it from Task Manager?

We hope to support Linux at some point but this would be in the distant future.

Regards
TK

On 3/8/2016 12:10 PM, cnc_machines@... [DynoMotion] wrote:
 

Greetings,


We have 11 CNC machines in our factory using KFlops running on two shifts. The issue that we are having is with system stability. Often times one of the computer locks up. In some cases I question the stability of the OS, but in other circumstances it is only KMotionCNC that is frozen. After several reboots it starts working again, but is causing downtime. I am looking for ways to solve these problems.


  1. OS Stability - Is there a way to have KMotion CNC work on Linux? I am wondering if this will ever be a supported platform?
  2. KMotion Freezing - Anyone have ideas on what could be causing this to freeze? Are there known bugs with fixes?
Thanks,

Scott
Group: DynoMotion Message: 12929 From: Andy Sontag Date: 3/8/2016
Subject: System Stability
Hi Scott,

I'm not sure if you're having the same issue that I was having with Kmotion and/or KmotionCNC locking up. The solution that worked for me was to add ferrite cores to the USB cable that connects the computer to the KFLOP. I always thought ferrite cores didn't really do anything until it completely solved an intermittent issue we had been experiencing for years.

A good core that will allow you to loop the USB cable a couple times can be purchased from Monoprice (potentially other places that I'm not aware of) for $2.44/pair. 

Andy

On Tue, Mar 8, 2016 at 12:26 PM, Tom Kerekes tk@... [DynoMotion] <DynoMotion@yahoogroups.com> wrote:
 

Hi Scott,

Sorry to hear this.  Can you provide any more clues? When does it happen?  While idle?  Only during a long Job?  Anything special about your Jobs?  What Version are you using?  What is your machine configuration?  What OS are you using?  How many systems have the issue?  Are they all the same configuration?  Does Task Manager indicate anything unusual (ie lots of memory used?).  Can you kill KMotionCNC and restart it from Task Manager?

We hope to support Linux at some point but this would be in the distant future.

Regards
TK

On 3/8/2016 12:10 PM, cnc_machines@... [DynoMotion] wrote:
 

Greetings,


We have 11 CNC machines in our factory using KFlops running on two shifts. The issue that we are having is with system stability. Often times one of the computer locks up. In some cases I question the stability of the OS, but in other circumstances it is only KMotionCNC that is frozen. After several reboots it starts working again, but is causing downtime. I am looking for ways to solve these problems.


  1. OS Stability - Is there a way to have KMotion CNC work on Linux? I am wondering if this will ever be a supported platform?
  2. KMotion Freezing - Anyone have ideas on what could be causing this to freeze? Are there known bugs with fixes?
Thanks,

Scott
Group: DynoMotion Message: 12930 From: Russ Larson Date: 3/9/2016
Subject: Re: System Stability

Scott,

 

I agree with Andy, the Ferrite cores on both ends of the USB cable where you loop the cable at least twice through the cable will block a great deal of EMI which causes instability.  As the load on a spindle increases the amount of EMI increases so give this a shot and I think you will probably have stable systems.  I also have the USB isolators but that alone would not eliminate the issues on my machine.

 

Russ

 

 

From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com]
Sent: Tuesday, March 08, 2016 9:13 PM
To: DynoMotion@yahoogroups.com
Subject: [DynoMotion] System Stability

 

 

Hi Scott,

 

I'm not sure if you're having the same issue that I was having with Kmotion and/or KmotionCNC locking up. The solution that worked for me was to add ferrite cores to the USB cable that connects the computer to the KFLOP. I always thought ferrite cores didn't really do anything until it completely solved an intermittent issue we had been experiencing for years.

 

A good core that will allow you to loop the USB cable a couple times can be purchased from Monoprice (potentially other places that I'm not aware of) for $2.44/pair. 

 

Andy

 

On Tue, Mar 8, 2016 at 12:26 PM, Tom Kerekes tk@... [DynoMotion] <DynoMotion@yahoogroups.com> wrote:

 

Hi Scott,

Sorry to hear this.  Can you provide any more clues? When does it happen?  While idle?  Only during a long Job?  Anything special about your Jobs?  What Version are you using?  What is your machine configuration?  What OS are you using?  How many systems have the issue?  Are they all the same configuration?  Does Task Manager indicate anything unusual (ie lots of memory used?).  Can you kill KMotionCNC and restart it from Task Manager?

We hope to support Linux at some point but this would be in the distant future.

Regards
TK

On 3/8/2016 12:10 PM, cnc_machines@... [DynoMotion] wrote:

 

Greetings,

 

We have 11 CNC machines in our factory using KFlops running on two shifts. The issue that we are having is with system stability. Often times one of the computer locks up. In some cases I question the stability of the OS, but in other circumstances it is only KMotionCNC that is frozen. After several reboots it starts working again, but is causing downtime. I am looking for ways to solve these problems.

 

  1. OS Stability - Is there a way to have KMotion CNC work on Linux? I am wondering if this will ever be a supported platform?
  2. KMotion Freezing - Anyone have ideas on what could be causing this to freeze? Are there known bugs with fixes?

Thanks,

 

Scott

 

 


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