Dynomotion

Group: DynoMotion Message: 2208 From: himykabibble Date: 11/13/2011
Subject: Jog Modes
Mach3 provides a number of different MPG jog modes, which are very handy. One that is very handy is "velocity mode", in which the faster you turn the MPG, the faster the axis moves. Is something like that supported in KMotion/KMotionCNC, or would it take a custom DSP program to implement it?

Regards,
Ray L.
Group: DynoMotion Message: 2210 From: Tom Kerekes Date: 11/13/2011
Subject: Re: Jog Modes
Hi Ray,
 
You description is a bit strange.  Did you mean to say what you said?  The normal way an MPG works is that as you move the MPG the axis moves tracking the position of the MPG.  In that case the faster you move the MPG the faster the axis would move.  If you meant to have the encoder act more like a Speed Potentiometer that would also be possible but yes you would need to write a few lines of code to set the Jog velocity as a function of the MPG position.
 
Regards
TK

Group: DynoMotion Message: 2211 From: himykabibble Date: 11/13/2011
Subject: Re: Jog Modes
Tom,

Yeah, I meant what I said. It's not moving in steps, it's jogging at a continuous rate, and that rate is determined by how fast you spin the MPG. I believe it may do steps if you turn it very slowly. What you describe is pretty much the way it works in step mode.

I just spent a really frustrating couple of hours trying to get things working on the PC on the machine, rather than my laptop. Everything seems to work fine on my laptop. I installed KMotion (v426)on the PC, copied over my C programs, went through all the menus making sure all the settings are the same in KMotion, KMotionCNC and Mach3. Everything seems to be OK in KMotion, but in KMotionCNC, as soon as I run Init, ALL axes take off and head for, near as I can tell, somewhere in the Aleutians. They just keep going forever. All works perfectly using my laptop.

I'm also surprised to find the MPG in my pendant, which is interfaced through Modbus, does not seem to work at all in Mach3. The other functions on the pendant work just fine. It's controlled by a Mach3 macropump, which monitors the MPG inputs, and issues the same Mach3 jog commands the on-screen buttons use. I don't see any reason it *shouldn't* work, but it doesn't.

Similar situation with the PROBE input. I have an on-screen LED that shows the PROBE input status, and it does properly reflect the probe state, but probe operations just run to the end, without ever triggering. The NotifyHandler IS seeing the trigger (I added a printf to make sure), but it appears the plug-in is never seeing it. Again, it works perfectly using my laptop.

I seem to be having far too many days like this lately....

Regards,
Ray L.

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Ray,
>  
> You description is a bit strange.  Did you mean to say what you said?  The normal way an MPG works is that as you move the MPG the axis moves tracking the position of the MPG.  In that case the faster you move the MPG the faster the axis would move.  If you meant to have the encoder act more like a Speed Potentiometer that would also be possible but yes you would need to write a few lines of code to set the Jog velocity as a function of the MPG position.
>  
> Regards
> TK
>
> From: himykabibble <jagboy@...>
> To: DynoMotion@yahoogroups.com
> Sent: Sunday, November 13, 2011 11:02 AM
> Subject: [DynoMotion] Jog Modes
>
>
>  
> Mach3 provides a number of different MPG jog modes, which are very handy. One that is very handy is "velocity mode", in which the faster you turn the MPG, the faster the axis moves. Is something like that supported in KMotion/KMotionCNC, or would it take a custom DSP program to implement it?
>
> Regards,
> Ray L.
>
Group: DynoMotion Message: 2212 From: Tom Kerekes Date: 11/13/2011
Subject: Re: Jog Modes
Hi Ray,
 
There is a MPG example called MPGSmooth.c that might be more to your liking.
 
Don't have much to add regarding the other issues.  What if you run Init from KMotion?  When switching computers if you copy over the <install>\KMotion\Data directory then all the screen settings should be the same, but actually running the Init.c program has nothing to do with screen settings it is totally self contained.
 
Don't know about ModBus.  Maybe it somehow goes directly to the Parallel Port Driver for some reason?
 
Hang in there :}
TK

Group: DynoMotion Message: 2213 From: himykabibble Date: 11/13/2011
Subject: Re: Jog Modes
Tom,

Running Init from KMotion works fine - it's only KMotionCNC that's acting weird. I'll try copying over the Data directory.

Not running any parallel port driver. I made a copy of my existing Mach3 install (with a SmoothStepper) and replaced the SS plug-in with the KM plug-in, then re-configured I/Os as required. The one thing that's different about the MPG inputs, is they do get specifically configured as MPG inputs in Mach3, so they're not exactly just normal inputs. But I have no idea how they're handled internally. Seems like there must be something about the KM plug-in making it not work, because it works perfectly with both the PP or SmoothStepper. I'll see if Brian has any ideas.

Regards,
Ray L.

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Ray,
>  
> There is a MPG example called MPGSmooth.c that might be more to your liking.
>  
> Don't have much to add regarding the other issues.  What if you run Init from KMotion?  When switching computers if you copy over the <install>\KMotion\Data directory then all the screen settings should be the same, but actually running the Init.c program has nothing to do with screen settings it is totally self contained.
>  
> Don't know about ModBus.  Maybe it somehow goes directly to the Parallel Port Driver for some reason?
>  
> Hang in there :}
> TK
>
> From: himykabibble <jagboy@...>
> To: DynoMotion@yahoogroups.com
> Sent: Sunday, November 13, 2011 2:57 PM
> Subject: [DynoMotion] Re: Jog Modes
>
>
>  
> Tom,
>
> Yeah, I meant what I said. It's not moving in steps, it's jogging at a continuous rate, and that rate is determined by how fast you spin the MPG. I believe it may do steps if you turn it very slowly. What you describe is pretty much the way it works in step mode.
>
> I just spent a really frustrating couple of hours trying to get things working on the PC on the machine, rather than my laptop. Everything seems to work fine on my laptop. I installed KMotion (v426)on the PC, copied over my C programs, went through all the menus making sure all the settings are the same in KMotion, KMotionCNC and Mach3. Everything seems to be OK in KMotion, but in KMotionCNC, as soon as I run Init, ALL axes take off and head for, near as I can tell, somewhere in the Aleutians. They just keep going forever. All works perfectly using my laptop.
>
> I'm also surprised to find the MPG in my pendant, which is interfaced through Modbus, does not seem to work at all in Mach3. The other functions on the pendant work just fine. It's controlled by a Mach3 macropump, which monitors the MPG inputs, and issues the same Mach3 jog commands the on-screen buttons use. I don't see any reason it *shouldn't* work, but it doesn't.
>
> Similar situation with the PROBE input. I have an on-screen LED that shows the PROBE input status, and it does properly reflect the probe state, but probe operations just run to the end, without ever triggering. The NotifyHandler IS seeing the trigger (I added a printf to make sure), but it appears the plug-in is never seeing it. Again, it works perfectly using my laptop.
>
> I seem to be having far too many days like this lately....
>
> Regards,
> Ray L.
>
> --- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@> wrote:
> >
> > Hi Ray,
> >  
> > You description is a bit strange.  Did you mean to say what you said?  The normal way an MPG works is that as you move the MPG the axis moves tracking the position of the MPG.  In that case the faster you move the MPG the faster the axis would move.  If you meant to have the encoder act more like a Speed Potentiometer that would also be possible but yes you would need to write a few lines of code to set the Jog velocity as a function of the MPG position.
> >  
> > Regards
> > TK
> >
> > From: himykabibble <jagboy@>
> > To: DynoMotion@yahoogroups.com
> > Sent: Sunday, November 13, 2011 11:02 AM
> > Subject: [DynoMotion] Jog Modes
> >
> >
> >  
> > Mach3 provides a number of different MPG jog modes, which are very handy. One that is very handy is "velocity mode", in which the faster you turn the MPG, the faster the axis moves. Is something like that supported in KMotion/KMotionCNC, or would it take a custom DSP program to implement it?
> >
> > Regards,
> > Ray L.
> >
>