Re: [Emc-users] Pid saturated, was: Servo error

2013-01-05 Thread Viesturs Lācis 
2012/12/30 Viesturs Lācis :
>
> What is left is the pid saturation as soon as I jog the motor.
> Acceleration is extremely low, pid parameters as well.
> I would appreciate any tips from where to start.
>

Taking a small break on New Year apparently was needed. Unfortunately
I have no idea why, but now I can jog all the motors back and forth. I
did work out lead angle value for each motor to provide best max speed
 and then somehow also pid started to behave normally. Anyway, I would
like to thank Peter once again for the patience and provided support!

Now I have 2 another questions:
1) is it safe to test THCAD-10 card by providing input voltage from
usual AA or AAA battery?
I want to test, if I have configured the encoder module correctly and
some other related stuff.

2) I created gladevcp panel for plasma signals and other stuff, but
the thing is that all the buttons are inactive.
I looked at gladevcp sample config and I saw that there is a signal
for each table or h-box, in which widgets are placed in. And that
these signals are connected either to e-stop loop or
halui.machine-is-on or even permanently set "true" to link them to
appropriate machine state, when they should be available to user. I
find it very nice feature, so I did the same, but I somehow have
managed to fail. In HalShow I see that those pins of tables or
h-boxes, in which I have some buttons, are true, but buttons are not
available.
What else am I missing?

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Re: [Emc-users] Milling arbor adaptor

2013-01-05 Thread andy pugh 
On 5 January 2013 21:20, Jason Burton  wrote:

> Nice. Maybe I missed it, but what taper is that?

30 INT.

(Which seems to be unknown in the US, but is very similar to NMTB 30)

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Re: [Emc-users] Milling arbor adaptor

2013-01-05 Thread Jason Burton 
On Sat, Jan 5, 2013 at 1:59 PM, andy pugh  wrote:

> On 5 January 2013 17:02, Jason Burton  wrote:
> > How about silver brazing key stubs onto the inner and outer faces of a
> > sleeve?
>
> In the end, I did this:
>
> https://picasaweb.google.com/lh/photo/1rMJccMQo6Q9Vfxi0Fq33tMTjNZETYmyPJy0liipFm0?feat=directlink
> ie, I made a whole new arbor specifically for the job.
>
> --
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> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
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Nice. Maybe I missed it, but what taper is that?

Jason
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Re: [Emc-users] Milling arbor adaptor

2013-01-05 Thread andy pugh 
On 5 January 2013 17:02, Jason Burton  wrote:
> How about silver brazing key stubs onto the inner and outer faces of a
> sleeve?

In the end, I did this:
https://picasaweb.google.com/lh/photo/1rMJccMQo6Q9Vfxi0Fq33tMTjNZETYmyPJy0liipFm0?feat=directlink
ie, I made a whole new arbor specifically for the job.

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Re: [Emc-users] a bit of New Year levity

2013-01-05 Thread Kent A. Reed 
On 1/5/2013 6:37 AM, Bruce Layne wrote:
> That was great.  It's great marketing too.  I had been buying metal from
> a number of places but had somehow misplaced Online Metals, but after
> laughing at their joke products for metalworkers, I checked their prices
> and they looked easier to shop and/or cheaper than my other prototype
> and small run sources.  Plastics, too.  I'll give them a try next time I
> need to place an order, which will be soon. That bit of clever humor
> might lead to several hundred dollars in new business from me this year.

Yep. I found them several years ago and have placed several orders. All 
were fulfilled promptly and at decent prices.

> Hey, if you liked that, you'll probably love this video.  I laugh out
> loud every time I watch it.  I guess if you don't like robots or rock,
> you might give it a miss, but I'd wager most of you will enjoy it.
>
> http://www.youtube.com/watch?v=3RBSkq-_St8
>
> (Compressorhead - Ace of Spades)
>

I loved it. Who says roboticists don't have style, humor, lots of time 
on their hands:-)

Maybe there's a movie in this. Watching t it I hear a slogan forming in 
my head---a cross between "Number Five is Alive" (from Short Circuit) 
and "We're getting the band back together" (from The Blues Brothers).

Thanks,
Regards,
Kent

PS - I have to fess up. I had noticed but not paid any attention to the 
"Cut Away" blurb on the OnlineMetals website because I was concentrating 
on buying some metal. Then it was called out in a post to a local 
metalworking email list just a few days ago. So props to the original 
poster.

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Re: [Emc-users] Seasons Greetings and Xmas gift

2013-01-05 Thread Jason Burton 
Merry Christmas Yann, and happy new year!
On Dec 26, 2012 2:05 AM, "yann jautard"  wrote:

> Hi everybody
>
> Merry Christmas and happy new year from France.
>
> And for the ones that have a router capable of doing 800x600mm work in
> 10mm wood panel , there is a bonus :
> Make a educational christmas present to your child or grand child : a
> birdhouse :)
> Nail and glue free design.
>
> http://imagebin.org/240634
>
> Here is the NGC file :
>
> http://filebin.ca/RJdr6qHEoCt/ok_COMPLET_trous_larges_1passe_0001.ngc
>
>
>
> Le 25/12/2012 14:25, Jim Wilkin a écrit :
> > Merry Christmas and a Happy New Year
> > from Canada.
> >   James wilkin
> >
> >
> --
> > LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial
> > Remotely access PCs and mobile devices and provide instant support
> > Improve your efficiency, and focus on delivering more value-add services
> > Discover what IT Professionals Know. Rescue delivers
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>
>
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Re: [Emc-users] Milling arbor adaptor

2013-01-05 Thread Jason Burton 
How about silver brazing key stubs onto the inner and outer faces of a
sleeve?

Surfaces that contact the sleeve could be radius matched if necessary for
strength.

Silver braze with correct gap fit can be _very_ strong.

Jason
On Jan 3, 2013 5:49 AM, "andy pugh"  wrote:

> I have a 1.25" bore gear hob, and a 1" bore horizontal milling arbor
> for my milling machine.
>
> I am trying to figure out how to make an adaptor. The ideal thing
> would have an internal keyway and an external key, but I can't
> off-hand think of a way to make that with sufficient guarantee of
> concentricity.
>
> The "Plan B" is a machined sleeve with holes for pegs which can engage
> both keyways.
>
> Not having ever used a horizontal milling arbor, should there be a
> full-length key? Mine appears to only have one very short key.
>
> --
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> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
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Re: [Emc-users] LinuxCNC and Mach3

2013-01-05 Thread Dave 
On 1/4/2013 11:20 AM, Andrey wrote:
>
>
>   2013, 13:46 UTC от andy pugh:
>
>> On 3 January 2013 13:36, Andrew<  parallel.kinemat...@gmail.com>  wrote:
>>
>>  
>>> There are PWM outputs and encoder inputs in KFLOP
>>>   http://dynomotion.com/Help/SchematicsKFLOP/ConnectorsKFLOP.htm
>>>
>> I seem to have managed to overlook that, despite looking at that page.
>>
>> Does the servo PID run in Mach or on the Kflop in that situation?
>> (And why would you use Mach and not Kmotion at that point?)
>>
>>
>> -- 
>> atp
>>  
>   KFLOP accepts commands in the form of parametric polynomials from a 
> software  such as Mach3,
> and produce  pulse trains that drive step&  direction motors
> or analog +- 10 in use KFLOP analog.
> Much has  not PID control block so PID control is exercised chip KFLOP
> Similarly work boards Smooth Stepper and  DSPMC/IP
>
>
>Andrew
>
>>  
>
Mach3 only has a time/position movement buffer available for a 
connection to external motion devices in the form of a circular buffer.
The Mach3 planner loads the buffer with movement data.

I suppose it could be viewed as a parametric polynomial.  ;-)

That type of motion interface is surprisingly common between PCs and 
intelligent motion devices, such as the Galil cards and I believe the 
Delta Tau cards, among others.

I wrote a motion plug in for Mach3 a few years ago.

Long ago Art, of Mach3, wrote up a long paper on how Mach3 functions 
internally and it is quite accurate.

If anyone would like a copy of it, here it is:  
https://rapidshare.com/files/2310194634/Mach3Mysteries.pdf

Dave

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Re: [Emc-users] a bit of New Year levity

2013-01-05 Thread Bruce Layne 
That was great.  It's great marketing too.  I had been buying metal from 
a number of places but had somehow misplaced Online Metals, but after 
laughing at their joke products for metalworkers, I checked their prices 
and they looked easier to shop and/or cheaper than my other prototype 
and small run sources.  Plastics, too.  I'll give them a try next time I 
need to place an order, which will be soon. That bit of clever humor 
might lead to several hundred dollars in new business from me this year.

Hey, if you liked that, you'll probably love this video.  I laugh out 
loud every time I watch it.  I guess if you don't like robots or rock, 
you might give it a miss, but I'd wager most of you will enjoy it.

http://www.youtube.com/watch?v=3RBSkq-_St8

(Compressorhead - Ace of Spades)


Speaking of laughing out loud, I'm heading out now to pick up the kitted 
mechanical parts to build my beefy little 24" X 48" CNC router (with 
ball screws and linear rail).  I'm positively giddy. The 1090 ounce inch 
NEMA 34 motors, motor drives, power supplies and optoisolated breakout 
board are all in state and FedEx says they'll be here Monday.  I may buy 
a 24" X 48" X .25" thick  or thicker aluminum top plate from Online 
Metals to go under the MDF spoil board, and some .25" polycarbonate 
sheets for the enclosure / dust collection / sound proofing.  Happy New 
Year!



> Too bad this was an April Fool's joke (I know, me it took a while to
> notice it, but I've been kind of busy). I could really use a case of
> "Cut Away!", not to mention their "MetalDhruker".
>
> http://www.onlinemetals.com/cutaway.cfm


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Re: [Emc-users] a bit of New Year levity

2013-01-05 Thread Marcus Bowman 
Nerves grow back too.
My brother severed the tip of his little finger and it was stitched back on. No 
feeling for a long time, but the nerves grew back eventually.
That's probably cheaper than the Cut Away Spray, but not as instant.
Mind you; lack of feeling in the little finger might be useful if you were 
doing karate chops. No need to worry if the brick you were hitting was a bit 
too hard.
Then again - No Pain: No Gain (?)

Marcus

On 4 Jan 2013, at 22:06, Gene Heskett wrote:

On Friday 04 January 2013 16:45:54 dave did opine:
Message additions Copyright Friday 04 January 2013 by Gene Heskett

> On Fri, 2013-01-04 at 10:43 -0800, Rafael Skodlar wrote:
>> On 01/04/2013 08:59 AM, Kent A. Reed wrote:
>>> Gentle persons:
>>> 
>>> Too bad this was an April Fool's joke (I know, me it took a while to
>>> notice it, but I've been kind of busy). I could really use a case of
>>> "Cut Away!", not to mention their "MetalDhruker".
>>> 
>>> http://www.onlinemetals.com/cutaway.cfm
>>> 
>>> Regards,
>>> Kent
>> 
>> If it's good for metal rods it should be good for fingers too. Ordered
>> it right away.
> 
> Oh! That just too funny. April Fool's ... New Year ... what the heck.
> Still good for a laugh.
> 
> All kidding aside there are cases of human regeneration of fingers but
> the age limit is something like  6-7 years old.
> 
> D

I'd like to point out that there is one other area where humans can 
regenerate, fairly effectively in my case up to nearly 40 years old.

Teeth.  The percentage in the population as a whole who have this trait is 
about 2/100,000 and I was one of them.  I drank my coffee with cream & 
sugar up until my mid 40's when I bit into a big mac and broke part of a 
tooth away.  That was my wakeup call that I needed to start taking care of 
my teeth.  When I was in my 20's, a curious dentist in Iowa City noted that 
it appeared that my cavities appeared to be rising on the side of the tooth 
in between semi-annual cleanings and offered to take a set of xrays every 6 
months as part of a research project for a paper he was writing on the 
subject.  A year later we had 3 sets of pix that confirmed my teeth were 
wearing away on top as expected but were growing from the bottom so that 
any cavities were actually carried to the top of the tooth before they 
could get deep enough to be a problem.

When I was about 21 I got into a scrap one night and caught a wrench in the 
mouth that cleaned the 2 upper front teeth off level with the gum line.  By 
the time I turned 23, they were almost back to normal height.  And at 78YO, 
I still have them.  Missing some molars though.  FWIW, I did return the 
favor putting the wrench swinger in the shop for a long week.  Since he had 
a wife & two kids and wasn't drawing a check, I took his wife half my check 
so she could buy groceries two weeks in a row.  His stupidity when full of 
7 & 7 wasn't their fault according to my reasoning.

Cheers, Gene
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