Re: [Emc-users] Jog behavior in EMCrsh

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Eric,

Thanks for looking into it.  I think i've figured it out.  

SET_WAIT ON + SET JOG == crashing your machine.

It seems that when EMC is set to SET_WAIT on it stops listening for any other commands until the given command completes.  Since a jog doesn't complete, it just goes until it crashes or you stop it manually.  

This explains the problem I was having the other day, and may be useful to others in the future.  If your telnet interface is going to have a jog mode, make sure you send SET SET_WAIT NONE before jogging.

Owen 

--- On Thu, 9/2/10, emc...@li... <emc...@li...> wrote:

> From: emc...@li... <emc...@li...>
> Subject: Emc-users Digest, Vol 53, Issue 7
> To: emc...@li...
> Date: Thursday, September 2, 2010, 6:07 PM
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> Today's Topics:
> 
>    1. Re: Jog behavior in EMCrsh (Eric H.
> Johnson)
>    2. Re: Can I make my joystick control its
> own feedrate? (rng3)
>    3. Re: Can I make my joystick control its
> own feedrate? (Igor Chudov)
>    4. rtai_shm.ko not found (Pavol Li?ka)
>    5. Gantrykins + 5axiskins (Lars Levin)
>    6. Two Z-Axes? (IOW, can I motorize the
> knee) (Igor Chudov)
>    7. Re: Two Z-Axes? (IOW, can I motorize
> the knee)
>       (Stephen Wille Padnos)
>    8. Re: Can I make my joystick control its
> own feedrate? (rng3)
>    9. Re: Two Z-Axes? (IOW, can I motorize
> the knee) (Stuart Stevenson)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 1 Sep 2010 20:16:57 -0400
> From: "Eric H. Johnson" <ejo...@ca...>
> Subject: Re: [Emc-users] Jog behavior in EMCrsh
> To: "'Enhanced Machine Controller \(EMC\)'"
>     <emc...@li...>
> Message-ID: <007b01cb4a34$2857ab20$79070160$@com>
> Content-Type: text/plain;   
> charset="us-ascii"
> 
> Owen,
> 
> I have been on vacation and am just catching up with my
> email. I won't
> actually be back until after Labor Day (That's Sept 6 for
> those not from the
> colonies <g>).
> 
> Set jog stop 
> 
> Should be the correct command, but I will check it when I
> get back.
> 
> Regards,
> Eric
> 
> 
> I was playing around tonight with EMCrsh, simply typing
> commands into a
> telnet window and thinking about potential remote
> interfaces, when I came
> across an odd behavior.  
> 
> When I issue:
> 
> SET JOG 0 10
> 
> the X axis begins moving at 10 ipm in the negative(?)
> direction.  When I
> then issue:
> 
> SET JOG_STOP 0
> 
> I don't get an immediate response.  If I allow it to
> run into the limit
> switch I get
> 
> SET JOG_STOP ACK
> 
> but only once the switch is tripped.  If I append a
> third arguement
> (increment, according to the docs), it is ignored.  If
> I send SET ESTOP ON
> while the jog is happening, the machine continues moving.
> 
> Am I doing something wrong, or is this a bug in EMCrsh?
> 
> I'm running EMC 2.3.5 to drive a 4-axis machine configured
> solely with the
> stepconf wizard.  I've only modified to the hal file
> to enable emcrsh.
> 
> Any thoughts much appreciated,
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Thu, 02 Sep 2010 06:25:50 -0500
> From: "rng3" <rn...@ve...>
> Subject: Re: [Emc-users] Can I make my joystick control its
> own
>     feedrate?
> To: "Enhanced Machine Controller \(EMC\)"
>     <emc...@li...>
> Message-ID: <000601cb4a91$9e4c6070$0201a8c0@OFFICE>
> Content-Type: text/plain; format=flowed;
> charset=iso-8859-1;
>     reply-type=original
> 
> Hello Igor,
> 
> To make the joypad even more useful you can add incremental
> jog moves.
> 
> You can also add deadzones to the joystick to prevent
> accidentally moving 
> two axis at one time when you only want to move one.
> 
> By using button combinations to make moves, turn spindle
> on, etc. you add 
> safety to the machine. With Hal you can really do a lot
> with a simple 
> joypad.
> 
> Rick G
> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Thu, 2 Sep 2010 07:55:35 -0500
> From: Igor Chudov <ic...@gm...>
> Subject: Re: [Emc-users] Can I make my joystick control its
> own
>     feedrate?
> To: "Enhanced Machine Controller (EMC)"
>     <emc...@li...>
> Message-ID:
>     <AANLkTi=N0WjRW08PzeMkNNZF-gY79Qi7=mvv...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> On Thu, Sep 2, 2010 at 6:25 AM, rng3 <rn...@ve...>
> wrote:
> > Hello Igor,
> >
> > To make the joypad even more useful you can add
> incremental jog moves.
> >
> > You can also add deadzones to the joystick to prevent
> accidentally moving
> > two axis at one time when you only want to move one.
> >
> > By using button combinations to make moves, turn
> spindle on, etc. you add
> > safety to the machine. With Hal you can really do a
> lot with a simple
> > joypad.
> 
> Any idea how I can do incremental? (say 0.001"
> increments).
> 
> i
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Thu, 2 Sep 2010 18:08:46 +0200
> From: Pavol Li?ka <pal...@gm...>
> Subject: [Emc-users] rtai_shm.ko not found
> To: emc...@li...
> Message-ID:
>     <AAN...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> My question is about "rtai_shm.ko".
> Im using Ubuntu10.04 from http://www.linuxcnc.org/mozmck/
> 
> When I tried to resolve some latency issues I found out
> that in "rtapi.conf"
> is missing path for rtai_shm as you can see:
>     MODPATH_rtai_shm=
> Is this correct or bug.
> 
> palo
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Thu, 2 Sep 2010 22:20:55 +0200
> From: "Lars Levin" <la...@le...>
> Subject: [Emc-users] Gantrykins + 5axiskins
> To: <emc...@li...>
> Message-ID:
>     <58AB509330A0074E941F906F77F0EFD0C5C3@sbs-ld.levindesign.local>
> Content-Type: text/plain;   
> charset="iso-8859-1"
> 
> Hi Group!
> 
> I am trying to set up a 5 axis router with double servos on
> x,y and z.
> I have a Mesa 3x20 with 3 7i33 servo cards.
> 
> I have looked at the example file 5axiskins that uses 9
> joints xyzabcuvw,
> but y2 seems to be linked to joint 7,u.
> 
> Can I make a variant of this with x1y1z1abcx2y2z2, or is
> uvw needed for
> calculating the kinematics?
> 
> Does this 5axiskins setup use gantrykins, or is y just fed
> to 2 joints in another way?
> 
> Can a version of 5axiskins be used together with
> gantrykins, or how should
> I proceed to get it right?
> 
> Best Regards!
> Lars Levin
> 
> 
> ------------------------------
> 
> Message: 6
> Date: Thu, 2 Sep 2010 16:45:00 -0500
> From: Igor Chudov <ic...@gm...>
> Subject: [Emc-users] Two Z-Axes? (IOW, can I motorize the
> knee)
> To: "Enhanced Machine Controller (EMC)"
>     <emc...@li...>
> Message-ID:
>     <AAN...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> My Bridgeport Series II Interact 2 CNC mill has a Z axis in
> the quill.
> 
> http://igor.chudov.com/projects/Bridgeport-Series-II-Interact-2-CNC-Mill/
> 
> It has Z travel of only about 4.8 inches. Which is actually
> adequate
> for most of what I do.
> 
> But, the other nice thing that it has is air assisted knee.
> So the
> knee is very easy to move if supported by air. And I
> started
> wondering, what if I put a servo drive on the knee? Then I
> would have,
> perhaps, 20 total inches of vertical travel and I could do
> big stuff,
> bore or drill big holes, etc. Life would be much more fun.
> It would
> not need to be fast.
> 
> So, my question is, does EMC2 support "two Z axes" and if
> so, what
> sorts of EMC2 facilities would I need for this. Different
> kinematics?
> etc
> 
> thanks guys. It is a very fun ride so far.
> 
> - Igor
> 
> 
> 
> ------------------------------
> 
> Message: 7
> Date: Thu, 02 Sep 2010 17:53:44 -0400
> From: Stephen Wille Padnos <sp...@so...>
> Subject: Re: [Emc-users] Two Z-Axes? (IOW, can I motorize
> the knee)
> To: "Enhanced Machine Controller (EMC)"
>     <emc...@li...>
> Message-ID: <4C8...@so...>
> Content-Type: text/plain; charset=ISO-8859-1;
> format=flowed
> 
> Igor Chudov wrote:
> > My Bridgeport Series II Interact 2 CNC mill has a Z
> axis in the quill.
> >
> > http://igor.chudov.com/projects/Bridgeport-Series-II-Interact-2-CNC-Mill/
> >
> > It has Z travel of only about 4.8 inches. Which is
> actually adequate
> > for most of what I do.
> >
> > But, the other nice thing that it has is air assisted
> knee. So the
> > knee is very easy to move if supported by air. And I
> started
> > wondering, what if I put a servo drive on the knee?
> Then I would have,
> > perhaps, 20 total inches of vertical travel and I
> could do big stuff,
> > bore or drill big holes, etc. Life would be much more
> fun. It would
> > not need to be fast.
> >    
> There are people who use the knee for Z, and lock the
> quill.
> > So, my question is, does EMC2 support "two Z axes" and
> if so, what
> > sorts of EMC2 facilities would I need for this.
> Different kinematics?
> > etc
> >    
> No, but there is the "W" axis, which is defined as a linear
> axis 
> parallel to Z.  You could position W to get the right
> "range", and still 
> use the quill for Z.
> 
> - Steve
> 
> 
> 
> 
> ------------------------------
> 
> Message: 8
> Date: Thu, 02 Sep 2010 17:54:54 -0500
> From: "rng3" <rn...@ve...>
> Subject: Re: [Emc-users] Can I make my joystick control its
> own
>     feedrate?
> To: "Enhanced Machine Controller \(EMC\)"
>     <emc...@li...>
> Message-ID: <000a01cb4af1$dffec2a0$0201a8c0@OFFICE>
> Content-Type: text/plain; format=flowed;
> charset=iso-8859-1;
>     reply-type=original
> 
> 
> Hello Igor,
> 
> 
> For a way to add incremental moves take a look here...
> 
> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Adding_More_Controls_To_Simple_Remote_Pendant
> 
> I use the number 4 button with a joystick combination to
> make  incremental 
> jog moves.
> 
> >From the article...
> 
> 
> We decided to make our incremental jog mode by way of a MDI
> command. Seems 
> simple enough all we need to do is switch from absolute
> mode G90 to 
> Incremental mode G91, make our move G0 X.001 then switch
> back to G90 when we 
> return. The problem is you cannot have both G90 and G91 on
> the same line. So 
> in order to make this move we issue a MDI command G0 X.001
> M102. We program 
> the M102 to change the hal pin tristate to TRUE which
> allows EMC to process 
> the MDI command G90 when we release the joypad button 4. So
> the signal goes 
> from the joypad to MDI command one to an external program
> to the joypad to a 
> hal pin to MDI command two and back. We are using oneshot
> here so we are not 
> constantly sending a MDI command.
> 
> Rick G
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 9
> Date: Thu, 2 Sep 2010 17:07:11 -0500
> From: Stuart Stevenson <st...@gm...>
> Subject: Re: [Emc-users] Two Z-Axes? (IOW, can I motorize
> the knee)
> To: "Enhanced Machine Controller (EMC)"
>     <emc...@li...>
> Message-ID:
>    
> <AANLkTi=vi6...@ma...>
> Content-Type: text/plain; charset=UTF-8
> 
> Igor,
>   You have options with EMC2. You can use two
> different configuration files.
> One configuration file to position the knee and use the
> quill as the Z axis
> as Stephan suggests. Another configuration file to use the
> knee as the Z
> axis and the quill as the W axis.
>   You can use the tool length compensation along the Z
> axis or the W axis.
>   You would even be able to move both the Z and W at
> the same time during a
> program.
> Stuart
> 
> 
> -- 
> dos centavos
> 
> 
> ------------------------------
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