Re: [Emc-users] Hey Gene! Hand held O'scope for ya.

[Gene Heskett]

On Tuesday 14 August 2012 23:09:35 Jason Burton did opine:

> On Aug 14, 2012 9:08 AM, "Gene Heskett"  wrote:
> > On Tuesday 14 August 2012 10:00:30 Mark Wendt did opine:
> > > Ebay auction #160861790127
> > > 
> > > Mark
> > 
> > A bit rich ($330) for my budget.  I bought one of the DSO NANO's.  For
> 
> what
> 
> > I want to use it for its adequate.  Unplug the usb charging cable and
> > its fully isolated.
> > 
> > Cheers, Gene
> > --
> > "There are four boxes...
> 
> How do you like the DSO Nano? I've been eyeing them for a while.
> 
About the only thing I haven't mastered is getting the sweep trigger set so 
I can see the actual trigger.  Other than that, and a miss-match between 
the probe and its frequency comp that distorts a square wave somewhat, it 
Just Works(TM).

I didn't expect it to match my Hitachi V-1065, but at 5% of the cost ...

Cheers, Gene
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page:  is up!
The less a statesman amounts to, the more he loves the flag.
-- Kin Hubbard

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Re: [Emc-users] How to unlock a linear axis

[sam sokolik]

I just played with master.

It looks like if you add LOCKING_INDEXER = 1 to a linear axis - it 
doesn't create the pins.  (but does make it so you cannot jog it) So it 
'sort of' works.  :).  It probably should do all or nothing.

sam
On 08/14/2012 03:46 PM, Andrea Buono wrote:
> Yes it is,
>
> 2012/8/14 sam sokolik 
>
>> Was it axis 0 that you added the LOCKING_INDEXER = 1 to*?
>>
>> sam
>> *
>> On 8/14/2012 3:31 PM, Andrea Buono wrote:
>>> Hi,
>>>
>>> thanks to all,
>>>
>>> well I have made a test, I have add LOCKING_INDEXER = 1 in the linear
>> axis
>>> and then I had run linuxcnc, no error at startup and when I have tried to
>>> jog the axis an error "Can't jog a locking axis"..sounds
>>> good...after this I have modified the hm2-servo.hal to add the line
>> to
>>> controll the behavior but at startup linuxcnc give me an error  "Pin
>>> axis.0.is-unlocked doesn't exist 5990", I run the 2.6.0 pre0-3148 version
>>> of linuxcnc because I have read somewhere that only the new 2.6 will have
>>> this feature.
>>> Why I get this error? How you have made your code?
>>>
>>> Thanks.
>>>
>>>
>>>
>>> 2012/8/14 sam sokolik 
>>>
 To add - It doesn't seem like it cares if it is linear or not... (I use
 it on our table indexer and it works great (delays set for up/down in
 ladder that control the hal loopback.)

 http://www.youtube.com/watch?v=vLE4lzPcEo8&feature=plcp

 sam

 On 8/14/2012 12:12 PM, sam sokolik wrote:
> Someone may have to correct me.. But I think you could use Locking
> rotory.. A couple of thing to think about..
>
> The axis can only be moved by itself.
> The axis moves at rapid (G0)
>
> •LOCKING_INDEXER = 1 - When this is set to 1 a G0 move for this axis
> will initiate an unlock with axis.N.unlock pin then wait for the
> axis.N.is-unlocked pin then move the axis at the rapid rate for that
> axis. After the move the axis.N.unlock will be false and motion will
> wait for axis.N.is-unlocked to go false. Moving with other axes is not
> allowed when moving a locked rotary axis.
>
> That way you have a hal loop that can be used to control things like
>> amp
> enables and such..
>
> sam
>
>
> On 8/14/2012 11:50 AM, Stuart Stevenson wrote:
>> Andrea,
>>
>> If you hold the feed rate at zero with the motion.feed-hold until the
 brake
>> is released then no matter how long the brake takes to release the
>> slide
>> will not move.
>> Install a physical switch to trip when the brake is physically
>> unlocked.
>> Set up the motion.feed-hold to read the switch on the brake.
>>
>>
>> thanks
>> Stuart
>>
>>
>> On Tue, Aug 14, 2012 at 10:18 AM, John Kasunich <
>> jmkasun...@fastmail.fm
> wrote:
>>> There is a HAL pin on the motion controller called motion.feed-hold
>>>
>>> motion.feed-hold IN BIT
>>> When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
>>> the feed rate is set to 0.
>>>
>>> Set up your HAL config so that pin is driven TRUE whenever the brake
>>> is on.
>>>
>>>
>>>
>>> On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
 Hi,

 I'm setting up a drilling machine with a single axis controlled by
>> an
 inverter with encoder with a Mesa 7i43 card for the loop
 The axis has a brake which acts on a rack railway by a cylinder.
 Now to allow time for the cylinder to unlock, I gave a delaied
 command to
 the
 direction of inverter, but this causes a tracking error on the axis.
 How do I tell to the "motion" that has to wait to release the brake
 even
 in
 MDI or in jog mode?

 Sorry for my english and thank you.

 Andrea

>> --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond.
 Discussions
 will include endpoint security, mobile security and the latest in
 malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Emc-users mailing list
 Emc-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/emc-users
>>> --
>>>   John Kasunich
>>>   jmkasun...@fastmail.fm
>>>
>>>
>>>
>>>
>> --
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>>> threat landscape has changed and how IT managers can respond.
 Discussions
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 malware
>

Re: [Emc-users] CNC Grinder

[Jon Elson]

sam sokolik wrote:
> we have not played with them yet - But plan to when we get some time..
>
> http://electronicsam.com/images/KandT/conversion/accpinset1.jpg
>
> Top is the head and bottom is the pins.  They are 10 inch sections that 
> get pinned to the machine.
>
> Here is how they drove it.
>
> http://electronicsam.com/images/KandT/conversion/accu.pdf
>
> (remember - 1960's)
>
>   
This uses the two pulses at different times on the sin and cos windings, 
and observes
the time of the zero crossing on the 3rd winding.  The mess of resistors 
and pots
in the lower left (as the scan shows up) is to linearize it across the 
range.  Exactly
how you do this tuning I don't know.

A resolver converter ought to work, if it has enough drive current.  It 
will probably
also need a sense amplifier.

Jon

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Re: [Emc-users] Hey Gene! Hand held O'scope for ya.

[Jason Burton]

On Aug 14, 2012 9:08 AM, "Gene Heskett"  wrote:
>
> On Tuesday 14 August 2012 10:00:30 Mark Wendt did opine:
>
> > Ebay auction #160861790127
> >
> > Mark
>
> A bit rich ($330) for my budget.  I bought one of the DSO NANO's.  For
what
> I want to use it for its adequate.  Unplug the usb charging cable and its
> fully isolated.
>
> Cheers, Gene
> --
> "There are four boxes...

How do you like the DSO Nano? I've been eyeing them for a while.

Jason
--
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Re: [Emc-users] How to unlock a linear axis

[Ray Mitchell]

I would first check to make sure that your pneumatics are working
correctly.  I have found on machines I worked on that the silencer, on the
exhaust port was partially plugged up, and caused the cylinder to release
slowly.  A new silencer corrected the issue.

But I do like the suggestions from the others on using direct feedback to
notify the controller that the cylinder is in the released position before
motion can start.

--J. Ray Mitchell Jr.
jrmitche...@gmail.com
(818)324-7573


A foolish faith in authority is the worst enemy of truth.
 - Einstein





On Tue, Aug 14, 2012 at 8:08 AM, Andrea Buono wrote:

> Hi,
>
> I'm setting up a drilling machine with a single axis controlled by an
> inverter with encoder with a Mesa 7i43 card for the loop
> The axis has a brake which acts on a rack railway by a cylinder.
> Now to allow time for the cylinder to unlock, I gave a delaied command to
> the
> direction of inverter, but this causes a tracking error on the axis.
> How do I tell to the "motion" that has to wait to release the brake even in
> MDI or in jog mode?
>
> Sorry for my english and thank you.
>
> Andrea
>
> --
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> ___
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> https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] How to unlock a linear axis

[Andrea Buono]

Yes it is,

2012/8/14 sam sokolik 

> Was it axis 0 that you added the LOCKING_INDEXER = 1 to*?
>
> sam
> *
> On 8/14/2012 3:31 PM, Andrea Buono wrote:
> > Hi,
> >
> > thanks to all,
> >
> > well I have made a test, I have add LOCKING_INDEXER = 1 in the linear
> axis
> > and then I had run linuxcnc, no error at startup and when I have tried to
> > jog the axis an error "Can't jog a locking axis"..sounds
> > good...after this I have modified the hm2-servo.hal to add the line
> to
> > controll the behavior but at startup linuxcnc give me an error  "Pin
> > axis.0.is-unlocked doesn't exist 5990", I run the 2.6.0 pre0-3148 version
> > of linuxcnc because I have read somewhere that only the new 2.6 will have
> > this feature.
> > Why I get this error? How you have made your code?
> >
> > Thanks.
> >
> >
> >
> > 2012/8/14 sam sokolik 
> >
> >> To add - It doesn't seem like it cares if it is linear or not... (I use
> >> it on our table indexer and it works great (delays set for up/down in
> >> ladder that control the hal loopback.)
> >>
> >> http://www.youtube.com/watch?v=vLE4lzPcEo8&feature=plcp
> >>
> >> sam
> >>
> >> On 8/14/2012 12:12 PM, sam sokolik wrote:
> >>> Someone may have to correct me.. But I think you could use Locking
> >>> rotory.. A couple of thing to think about..
> >>>
> >>> The axis can only be moved by itself.
> >>> The axis moves at rapid (G0)
> >>>
> >>> •LOCKING_INDEXER = 1 - When this is set to 1 a G0 move for this axis
> >>> will initiate an unlock with axis.N.unlock pin then wait for the
> >>> axis.N.is-unlocked pin then move the axis at the rapid rate for that
> >>> axis. After the move the axis.N.unlock will be false and motion will
> >>> wait for axis.N.is-unlocked to go false. Moving with other axes is not
> >>> allowed when moving a locked rotary axis.
> >>>
> >>> That way you have a hal loop that can be used to control things like
> amp
> >>> enables and such..
> >>>
> >>> sam
> >>>
> >>>
> >>> On 8/14/2012 11:50 AM, Stuart Stevenson wrote:
>  Andrea,
> 
>  If you hold the feed rate at zero with the motion.feed-hold until the
> >> brake
>  is released then no matter how long the brake takes to release the
> slide
>  will not move.
>  Install a physical switch to trip when the brake is physically
> unlocked.
>  Set up the motion.feed-hold to read the switch on the brake.
> 
> 
>  thanks
>  Stuart
> 
> 
>  On Tue, Aug 14, 2012 at 10:18 AM, John Kasunich <
> jmkasun...@fastmail.fm
> >>> wrote:
> > There is a HAL pin on the motion controller called motion.feed-hold
> >
> > motion.feed-hold IN BIT
> > When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
> > the feed rate is set to 0.
> >
> > Set up your HAL config so that pin is driven TRUE whenever the brake
> > is on.
> >
> >
> >
> > On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
> >> Hi,
> >>
> >> I'm setting up a drilling machine with a single axis controlled by
> an
> >> inverter with encoder with a Mesa 7i43 card for the loop
> >> The axis has a brake which acts on a rack railway by a cylinder.
> >> Now to allow time for the cylinder to unlock, I gave a delaied
> >> command to
> >> the
> >> direction of inverter, but this causes a tracking error on the axis.
> >> How do I tell to the "motion" that has to wait to release the brake
> >> even
> >> in
> >> MDI or in jog mode?
> >>
> >> Sorry for my english and thank you.
> >>
> >> Andrea
> >>
> >>
> --
> >> Live Security Virtual Conference
> >> Exclusive live event will cover all the ways today's security and
> >> threat landscape has changed and how IT managers can respond.
> >> Discussions
> >> will include endpoint security, mobile security and the latest in
> >> malware
> >> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >> ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> > --
> >  John Kasunich
> >  jmkasun...@fastmail.fm
> >
> >
> >
> >
> >>
> --
> > Live Security Virtual Conference
> > Exclusive live event will cover all the ways today's security and
> > threat landscape has changed and how IT managers can respond.
> >> Discussions
> > will include endpoint security, mobile security and the latest in
> >> malware
> > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >>>
> >>
> --

Re: [Emc-users] How to unlock a linear axis

[sam sokolik]

Was it axis 0 that you added the LOCKING_INDEXER = 1 to*?

sam
*
On 8/14/2012 3:31 PM, Andrea Buono wrote:
> Hi,
>
> thanks to all,
>
> well I have made a test, I have add LOCKING_INDEXER = 1 in the linear axis
> and then I had run linuxcnc, no error at startup and when I have tried to
> jog the axis an error "Can't jog a locking axis"..sounds
> good...after this I have modified the hm2-servo.hal to add the line to
> controll the behavior but at startup linuxcnc give me an error  "Pin
> axis.0.is-unlocked doesn't exist 5990", I run the 2.6.0 pre0-3148 version
> of linuxcnc because I have read somewhere that only the new 2.6 will have
> this feature.
> Why I get this error? How you have made your code?
>
> Thanks.
>
>
>
> 2012/8/14 sam sokolik 
>
>> To add - It doesn't seem like it cares if it is linear or not... (I use
>> it on our table indexer and it works great (delays set for up/down in
>> ladder that control the hal loopback.)
>>
>> http://www.youtube.com/watch?v=vLE4lzPcEo8&feature=plcp
>>
>> sam
>>
>> On 8/14/2012 12:12 PM, sam sokolik wrote:
>>> Someone may have to correct me.. But I think you could use Locking
>>> rotory.. A couple of thing to think about..
>>>
>>> The axis can only be moved by itself.
>>> The axis moves at rapid (G0)
>>>
>>> •LOCKING_INDEXER = 1 - When this is set to 1 a G0 move for this axis
>>> will initiate an unlock with axis.N.unlock pin then wait for the
>>> axis.N.is-unlocked pin then move the axis at the rapid rate for that
>>> axis. After the move the axis.N.unlock will be false and motion will
>>> wait for axis.N.is-unlocked to go false. Moving with other axes is not
>>> allowed when moving a locked rotary axis.
>>>
>>> That way you have a hal loop that can be used to control things like amp
>>> enables and such..
>>>
>>> sam
>>>
>>>
>>> On 8/14/2012 11:50 AM, Stuart Stevenson wrote:
 Andrea,

 If you hold the feed rate at zero with the motion.feed-hold until the
>> brake
 is released then no matter how long the brake takes to release the slide
 will not move.
 Install a physical switch to trip when the brake is physically unlocked.
 Set up the motion.feed-hold to read the switch on the brake.


 thanks
 Stuart


 On Tue, Aug 14, 2012 at 10:18 AM, John Kasunich >> wrote:
> There is a HAL pin on the motion controller called motion.feed-hold
>
> motion.feed-hold IN BIT
> When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
> the feed rate is set to 0.
>
> Set up your HAL config so that pin is driven TRUE whenever the brake
> is on.
>
>
>
> On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
>> Hi,
>>
>> I'm setting up a drilling machine with a single axis controlled by an
>> inverter with encoder with a Mesa 7i43 card for the loop
>> The axis has a brake which acts on a rack railway by a cylinder.
>> Now to allow time for the cylinder to unlock, I gave a delaied
>> command to
>> the
>> direction of inverter, but this causes a tracking error on the axis.
>> How do I tell to the "motion" that has to wait to release the brake
>> even
>> in
>> MDI or in jog mode?
>>
>> Sorry for my english and thank you.
>>
>> Andrea
>>
>> --
>> Live Security Virtual Conference
>> Exclusive live event will cover all the ways today's security and
>> threat landscape has changed and how IT managers can respond.
>> Discussions
>> will include endpoint security, mobile security and the latest in
>> malware
>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
> --
>  John Kasunich
>  jmkasun...@fastmail.fm
>
>
>
>
>> --
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond.
>> Discussions
> will include endpoint security, mobile security and the latest in
>> malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> ___
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>>>
>> --
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>>> threat landscape has changed and how IT managers can respond. Discussions
>>> will include endpoint security, mobile security and the latest in malware
>>> threats. 

Re: [Emc-users] How to unlock a linear axis

[Andrea Buono]

Hi,

thanks to all,

well I have made a test, I have add LOCKING_INDEXER = 1 in the linear axis
and then I had run linuxcnc, no error at startup and when I have tried to
jog the axis an error "Can't jog a locking axis"..sounds
good...after this I have modified the hm2-servo.hal to add the line to
controll the behavior but at startup linuxcnc give me an error  "Pin
axis.0.is-unlocked doesn't exist 5990", I run the 2.6.0 pre0-3148 version
of linuxcnc because I have read somewhere that only the new 2.6 will have
this feature.
Why I get this error? How you have made your code?

Thanks.



2012/8/14 sam sokolik 

> To add - It doesn't seem like it cares if it is linear or not... (I use
> it on our table indexer and it works great (delays set for up/down in
> ladder that control the hal loopback.)
>
> http://www.youtube.com/watch?v=vLE4lzPcEo8&feature=plcp
>
> sam
>
> On 8/14/2012 12:12 PM, sam sokolik wrote:
> > Someone may have to correct me.. But I think you could use Locking
> > rotory.. A couple of thing to think about..
> >
> > The axis can only be moved by itself.
> > The axis moves at rapid (G0)
> >
> > •LOCKING_INDEXER = 1 - When this is set to 1 a G0 move for this axis
> > will initiate an unlock with axis.N.unlock pin then wait for the
> > axis.N.is-unlocked pin then move the axis at the rapid rate for that
> > axis. After the move the axis.N.unlock will be false and motion will
> > wait for axis.N.is-unlocked to go false. Moving with other axes is not
> > allowed when moving a locked rotary axis.
> >
> > That way you have a hal loop that can be used to control things like amp
> > enables and such..
> >
> > sam
> >
> >
> > On 8/14/2012 11:50 AM, Stuart Stevenson wrote:
> >> Andrea,
> >>
> >> If you hold the feed rate at zero with the motion.feed-hold until the
> brake
> >> is released then no matter how long the brake takes to release the slide
> >> will not move.
> >> Install a physical switch to trip when the brake is physically unlocked.
> >> Set up the motion.feed-hold to read the switch on the brake.
> >>
> >>
> >> thanks
> >> Stuart
> >>
> >>
> >> On Tue, Aug 14, 2012 at 10:18 AM, John Kasunich  >wrote:
> >>
> >>> There is a HAL pin on the motion controller called motion.feed-hold
> >>>
> >>> motion.feed-hold IN BIT
> >>> When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
> >>> the feed rate is set to 0.
> >>>
> >>> Set up your HAL config so that pin is driven TRUE whenever the brake
> >>> is on.
> >>>
> >>>
> >>>
> >>> On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
>  Hi,
> 
>  I'm setting up a drilling machine with a single axis controlled by an
>  inverter with encoder with a Mesa 7i43 card for the loop
>  The axis has a brake which acts on a rack railway by a cylinder.
>  Now to allow time for the cylinder to unlock, I gave a delaied
> command to
>  the
>  direction of inverter, but this causes a tracking error on the axis.
>  How do I tell to the "motion" that has to wait to release the brake
> even
>  in
>  MDI or in jog mode?
> 
>  Sorry for my english and thank you.
> 
>  Andrea
> 
> >>>
> --
>  Live Security Virtual Conference
>  Exclusive live event will cover all the ways today's security and
>  threat landscape has changed and how IT managers can respond.
> Discussions
>  will include endpoint security, mobile security and the latest in
> malware
>  threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>  ___
>  Emc-users mailing list
>  Emc-users@lists.sourceforge.net
>  https://lists.sourceforge.net/lists/listinfo/emc-users
> >>> --
> >>> John Kasunich
> >>> jmkasun...@fastmail.fm
> >>>
> >>>
> >>>
> >>>
> --
> >>> Live Security Virtual Conference
> >>> Exclusive live event will cover all the ways today's security and
> >>> threat landscape has changed and how IT managers can respond.
> Discussions
> >>> will include endpoint security, mobile security and the latest in
> malware
> >>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >>> ___
> >>> Emc-users mailing list
> >>> Emc-users@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>>
> >>
> >
> >
> --
> > Live Security Virtual Conference
> > Exclusive live event will cover all the ways today's security and
> > threat landscape has changed and how IT managers can respond. Discussions
> > will include endpoint security, mobile security and the latest in malware
> > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> > ___
> > Emc-users mailing list
> > E

Re: [Emc-users] How to unlock a linear axis

[sam sokolik]

To add - It doesn't seem like it cares if it is linear or not... (I use 
it on our table indexer and it works great (delays set for up/down in 
ladder that control the hal loopback.)

http://www.youtube.com/watch?v=vLE4lzPcEo8&feature=plcp

sam

On 8/14/2012 12:12 PM, sam sokolik wrote:
> Someone may have to correct me.. But I think you could use Locking
> rotory.. A couple of thing to think about..
>
> The axis can only be moved by itself.
> The axis moves at rapid (G0)
>
> •LOCKING_INDEXER = 1 - When this is set to 1 a G0 move for this axis
> will initiate an unlock with axis.N.unlock pin then wait for the
> axis.N.is-unlocked pin then move the axis at the rapid rate for that
> axis. After the move the axis.N.unlock will be false and motion will
> wait for axis.N.is-unlocked to go false. Moving with other axes is not
> allowed when moving a locked rotary axis.
>
> That way you have a hal loop that can be used to control things like amp
> enables and such..
>
> sam
>
>
> On 8/14/2012 11:50 AM, Stuart Stevenson wrote:
>> Andrea,
>>
>> If you hold the feed rate at zero with the motion.feed-hold until the brake
>> is released then no matter how long the brake takes to release the slide
>> will not move.
>> Install a physical switch to trip when the brake is physically unlocked.
>> Set up the motion.feed-hold to read the switch on the brake.
>>
>>
>> thanks
>> Stuart
>>
>>
>> On Tue, Aug 14, 2012 at 10:18 AM, John Kasunich 
>> wrote:
>>
>>> There is a HAL pin on the motion controller called motion.feed-hold
>>>
>>> motion.feed-hold IN BIT
>>> When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
>>> the feed rate is set to 0.
>>>
>>> Set up your HAL config so that pin is driven TRUE whenever the brake
>>> is on.
>>>
>>>
>>>
>>> On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
 Hi,

 I'm setting up a drilling machine with a single axis controlled by an
 inverter with encoder with a Mesa 7i43 card for the loop
 The axis has a brake which acts on a rack railway by a cylinder.
 Now to allow time for the cylinder to unlock, I gave a delaied command to
 the
 direction of inverter, but this causes a tracking error on the axis.
 How do I tell to the "motion" that has to wait to release the brake even
 in
 MDI or in jog mode?

 Sorry for my english and thank you.

 Andrea

>>> --
 Live Security Virtual Conference
 Exclusive live event will cover all the ways today's security and
 threat landscape has changed and how IT managers can respond. Discussions
 will include endpoint security, mobile security and the latest in malware
 threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
 ___
 Emc-users mailing list
 Emc-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/emc-users
>>> --
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>>> jmkasun...@fastmail.fm
>>>
>>>
>>>
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>>
>
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Re: [Emc-users] CNC Grinder

[sam sokolik]

we have not played with them yet - But plan to when we get some time..

http://electronicsam.com/images/KandT/conversion/accpinset1.jpg

Top is the head and bottom is the pins.  They are 10 inch sections that 
get pinned to the machine.

Here is how they drove it.

http://electronicsam.com/images/KandT/conversion/accu.pdf

(remember - 1960's)

sam


On 8/14/2012 6:30 AM, Roland Jollivet wrote:
> The original, AFAIK, is Newall.com  Apparently the patent has expired,
> that's why there are others now.
>
> Regards
> Roland
>
>
> On 14 August 2012 11:37,  wrote:
>
>> Andy,
>>
>> Do you know if the Accupin method is still patent protected?  Within the
>> last year I looked up the ball-in-tube patent and those guys are pretty
>> proud of their round balls.  To me, pins are just as viable.  Thanks for
>> the "Accupin" reference.
>>
>>
>> Dennis
>>
>>
>>>   I think that a multi-pole one would work. Such a device would not be
>>>   far in principle from the "Accupin" scales on Skunkwork's K&T or the
>>>   ball-in-tube scales.
>>>
>>>   --
>>>   atp
>>
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Re: [Emc-users] How to unlock a linear axis

[sam sokolik]

Someone may have to correct me.. But I think you could use Locking 
rotory.. A couple of thing to think about..

The axis can only be moved by itself.
The axis moves at rapid (G0)

•LOCKING_INDEXER = 1 - When this is set to 1 a G0 move for this axis 
will initiate an unlock with axis.N.unlock pin then wait for the 
axis.N.is-unlocked pin then move the axis at the rapid rate for that 
axis. After the move the axis.N.unlock will be false and motion will 
wait for axis.N.is-unlocked to go false. Moving with other axes is not 
allowed when moving a locked rotary axis.

That way you have a hal loop that can be used to control things like amp 
enables and such..

sam


On 8/14/2012 11:50 AM, Stuart Stevenson wrote:
> Andrea,
>
> If you hold the feed rate at zero with the motion.feed-hold until the brake
> is released then no matter how long the brake takes to release the slide
> will not move.
> Install a physical switch to trip when the brake is physically unlocked.
> Set up the motion.feed-hold to read the switch on the brake.
>
>
> thanks
> Stuart
>
>
> On Tue, Aug 14, 2012 at 10:18 AM, John Kasunich wrote:
>
>> There is a HAL pin on the motion controller called motion.feed-hold
>>
>> motion.feed-hold IN BIT
>> When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
>> the feed rate is set to 0.
>>
>> Set up your HAL config so that pin is driven TRUE whenever the brake
>> is on.
>>
>>
>>
>> On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
>>> Hi,
>>>
>>> I'm setting up a drilling machine with a single axis controlled by an
>>> inverter with encoder with a Mesa 7i43 card for the loop
>>> The axis has a brake which acts on a rack railway by a cylinder.
>>> Now to allow time for the cylinder to unlock, I gave a delaied command to
>>> the
>>> direction of inverter, but this causes a tracking error on the axis.
>>> How do I tell to the "motion" that has to wait to release the brake even
>>> in
>>> MDI or in jog mode?
>>>
>>> Sorry for my english and thank you.
>>>
>>> Andrea
>>>
>> --
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>>> threat landscape has changed and how IT managers can respond. Discussions
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>> --
>>John Kasunich
>>jmkasun...@fastmail.fm
>>
>>
>>
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>
>


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Re: [Emc-users] How to unlock a linear axis

[Stuart Stevenson]

Andrea,

If you hold the feed rate at zero with the motion.feed-hold until the brake
is released then no matter how long the brake takes to release the slide
will not move.
Install a physical switch to trip when the brake is physically unlocked.
Set up the motion.feed-hold to read the switch on the brake.


thanks
Stuart


On Tue, Aug 14, 2012 at 10:18 AM, John Kasunich wrote:

> There is a HAL pin on the motion controller called motion.feed-hold
>
> motion.feed-hold IN BIT
> When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
> the feed rate is set to 0.
>
> Set up your HAL config so that pin is driven TRUE whenever the brake
> is on.
>
>
>
> On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
> > Hi,
> >
> > I'm setting up a drilling machine with a single axis controlled by an
> > inverter with encoder with a Mesa 7i43 card for the loop
> > The axis has a brake which acts on a rack railway by a cylinder.
> > Now to allow time for the cylinder to unlock, I gave a delaied command to
> > the
> > direction of inverter, but this causes a tracking error on the axis.
> > How do I tell to the "motion" that has to wait to release the brake even
> > in
> > MDI or in jog mode?
> >
> > Sorry for my english and thank you.
> >
> > Andrea
> >
> --
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> > threat landscape has changed and how IT managers can respond. Discussions
> > will include endpoint security, mobile security and the latest in malware
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
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>   jmkasun...@fastmail.fm
>
>
>
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Re: [Emc-users] How to unlock a linear axis

[Kirk Wallace]

On Tue, 2012-08-14 at 17:40 +0200, Andrea Buono wrote:
> Hi,
> 
> I know this HAL pin but the problem is before, I mean I know that the axis
> have to move because the pid output is not zero and then with some net and
> delay I unlock the brake and set the direction output for the motor, if I
> take the feed-hold to true the command gone to zero and the axis will not
> move forever you know?
> What do you think of the behavior of the locking-indexer? Is possible to
> reproduce something like this for linear axis to?
> 
> Andrea

I have no experience with this but, my thinking is that one should read
the locked axis position and make that the commanded position, then when
the the axis is unlocked, with a small delay for the brake to become
fully unlocked, the axis will not move. Then the new position can be
commanded without worrying about the brake being on. Thinking a little
more, it seems the problem is in the sequence of g-code commands. When
the axis stops, the commanded and actual position should match, or at
least after a short time. The brake can be applied. Then when a new
position is needed, release the brake, wait a short time, then command
the new position.

Or, I could be completely wrong.

-- 
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/index.html
California, USA


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Re: [Emc-users] How to unlock a linear axis

[Andrea Buono]

Hi,

I know this HAL pin but the problem is before, I mean I know that the axis
have to move because the pid output is not zero and then with some net and
delay I unlock the brake and set the direction output for the motor, if I
take the feed-hold to true the command gone to zero and the axis will not
move forever you know?
What do you think of the behavior of the locking-indexer? Is possible to
reproduce something like this for linear axis to?

Andrea

2012/8/14 John Kasunich 

> There is a HAL pin on the motion controller called motion.feed-hold
>
> motion.feed-hold IN BIT
> When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
> the feed rate is set to 0.
>
> Set up your HAL config so that pin is driven TRUE whenever the brake
> is on.
>
>
>
> On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
> > Hi,
> >
> > I'm setting up a drilling machine with a single axis controlled by an
> > inverter with encoder with a Mesa 7i43 card for the loop
> > The axis has a brake which acts on a rack railway by a cylinder.
> > Now to allow time for the cylinder to unlock, I gave a delaied command to
> > the
> > direction of inverter, but this causes a tracking error on the axis.
> > How do I tell to the "motion" that has to wait to release the brake even
> > in
> > MDI or in jog mode?
> >
> > Sorry for my english and thank you.
> >
> > Andrea
> >
> --
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> > threat landscape has changed and how IT managers can respond. Discussions
> > will include endpoint security, mobile security and the latest in malware
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> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
> --
>   John Kasunich
>   jmkasun...@fastmail.fm
>
>
>
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Re: [Emc-users] How to unlock a linear axis

[John Kasunich]

There is a HAL pin on the motion controller called motion.feed-hold

motion.feed-hold IN BIT
When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
the feed rate is set to 0.

Set up your HAL config so that pin is driven TRUE whenever the brake
is on.



On Tue, Aug 14, 2012, at 11:08 AM, Andrea Buono wrote:
> Hi,
> 
> I'm setting up a drilling machine with a single axis controlled by an
> inverter with encoder with a Mesa 7i43 card for the loop
> The axis has a brake which acts on a rack railway by a cylinder.
> Now to allow time for the cylinder to unlock, I gave a delaied command to
> the
> direction of inverter, but this causes a tracking error on the axis.
> How do I tell to the "motion" that has to wait to release the brake even
> in
> MDI or in jog mode?
> 
> Sorry for my english and thank you.
> 
> Andrea
> --
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-- 
  John Kasunich
  jmkasun...@fastmail.fm


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[Emc-users] How to unlock a linear axis

[Andrea Buono]

Hi,

I'm setting up a drilling machine with a single axis controlled by an
inverter with encoder with a Mesa 7i43 card for the loop
The axis has a brake which acts on a rack railway by a cylinder.
Now to allow time for the cylinder to unlock, I gave a delaied command to the
direction of inverter, but this causes a tracking error on the axis.
How do I tell to the "motion" that has to wait to release the brake even in
MDI or in jog mode?

Sorry for my english and thank you.

Andrea
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Re: [Emc-users] Hey Gene! Hand held O'scope for ya.

[Mark Wendt]

Yeah, but it is a Fluke.  It's $2900 retail new.  ;-)

Mark

On Tue, Aug 14, 2012 at 10:03 AM, Gene Heskett  wrote:
> On Tuesday 14 August 2012 10:00:30 Mark Wendt did opine:
>
>> Ebay auction #160861790127
>>
>> Mark
>
> A bit rich ($330) for my budget.  I bought one of the DSO NANO's.  For what
> I want to use it for its adequate.  Unplug the usb charging cable and its
> fully isolated.
>
> Cheers, Gene
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> My web page:  is up!
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> you.
> -- Albert Einstein
>
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Re: [Emc-users] Hey Gene! Hand held O'scope for ya.

[Gene Heskett]

On Tuesday 14 August 2012 10:00:30 Mark Wendt did opine:

> Ebay auction #160861790127
> 
> Mark
 
A bit rich ($330) for my budget.  I bought one of the DSO NANO's.  For what 
I want to use it for its adequate.  Unplug the usb charging cable and its 
fully isolated.

Cheers, Gene
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
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My web page:  is up!
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you.
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[Emc-users] CNC Grinder

[Roland Jollivet]

The original, AFAIK, is Newall.com  Apparently the patent has expired,
that's why there are others now.

Regards
Roland


On 14 August 2012 11:37,  wrote:

> Andy,
>
> Do you know if the Accupin method is still patent protected?  Within the
> last year I looked up the ball-in-tube patent and those guys are pretty
> proud of their round balls.  To me, pins are just as viable.  Thanks for
> the "Accupin" reference.
>
>
> Dennis
>
>
> >
> >  I think that a multi-pole one would work. Such a device would not be
> >  far in principle from the "Accupin" scales on Skunkwork's K&T or the
> >  ball-in-tube scales.
> >
> >  --
> >  atp
>
>
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Re: [Emc-users] CNC Grinder

[ceenbot]

Andy,

Do you know if the Accupin method is still patent protected?  Within the last 
year I looked up the ball-in-tube patent and those guys are pretty proud of 
their round balls.  To me, pins are just as viable.  Thanks for the "Accupin" 
reference.


Dennis


>  
>  I think that a multi-pole one would work. Such a device would not be
>  far in principle from the "Accupin" scales on Skunkwork's K&T or the
>  ball-in-tube scales.
>  
>  --
>  atp

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[Emc-users] Hey Gene! Hand held O'scope for ya.

[Mark Wendt]

Ebay auction #160861790127

Mark

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threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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