Re: [Emc-users] 5 axis cinci ball test

2008-09-03 Thread Stuart Stevenson
 Message: 1
 Date: Tue, 02 Sep 2008 20:42:10 -0500
 From: Karl Schmidt [EMAIL PROTECTED]
 Subject: Re: [Emc-users] 5 axis cinci ball test
 To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
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 What interfaces are you using?

 Are the PID loops within EMC2?



 
 Karl Schmidt EMail [EMAIL PROTECTED]
 Transtronics, Inc. WEB http://xtronics.com
 3209 West 9th StreetPh (785) 841-3089
 Lawrence, KS 66049 FAX (785) 841-0434

 Truth is mighty and will prevail.
 There is nothing wrong with this, except that it ain't so.  --Mark Twain

Karl,
   The the tach on the end of the motor feeds back to the amps. These
are the original SCR amps. I am working to replace them with amps that
need no feedback from the motors. The encoders on the motors feed back
to EMC. The tuning is a combination of the tuning in the SCR amps
(have done no tuning on the amps) and EMC's pid. EMC is able to tune
the motion nicely. This is limited by the SCR amps but works pretty
good.
Stuart

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Re: [Emc-users] 5 axis cinci ball test

2008-09-02 Thread Dirk

On 2 sep 2008, at 20:27, Stuart Stevenson wrote:

 Gentlemen,
   for your consideration

 cinci ball test on youtube: http://www.youtube.com/watch?v=Nn1bJ3YAQdI

Wow, what a beast. I am more from the precision engineering  
department. I guess I can make a product from chips coming off such a  
machine. But a nice test.

Dirk

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Re: [Emc-users] 5 axis cinci ball test

2008-09-02 Thread Steve Stallings
I know you posted this to illustrate the problems you are
working with, but it is a GREAT demonstration of what
kinematics are about, even if you are not running a
hexapod! Thanks.

Steve Stallings

 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] Behalf Of Stuart
 Stevenson
 Sent: Tuesday, September 02, 2008 2:27 PM
 To: EMC2-Users-List
 Subject: [Emc-users] 5 axis cinci ball test
 
 
 Gentlemen,
for your consideration
 
 cinci ball test on youtube: http://www.youtube.com/watch?v=Nn1bJ3YAQdI
 
 thank you very much for your help
 Stuart
 
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 Developer's challenge
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Re: [Emc-users] 5 axis cinci ball test

2008-09-02 Thread Greg Michalski
Stuart - That is just awesome.  I wish I had toys like that :D (Even with the 
investment that would obviously be aimed at making money from it's use, the 
conversion would be really really fun!  Therefore to me it's a toy ;)

I posted a link to that video on my website - hope you don't mind :)  It fits 
nicely with the link to my EMC2 simple stepper setup tutorial to encourage 
newcomers.

Greg
www.distinctperspectives.com

  - Original Message - 
  From: Stuart Stevenson 
  To: EMC2-Users-List 
  Sent: Tuesday, September 02, 2008 2:27 PM
  Subject: [Emc-users] 5 axis cinci ball test


  Gentlemen,
 for your consideration

  cinci ball test on youtube: http://www.youtube.com/watch?v=Nn1bJ3YAQdI

  thank you very much for your help
  Stuart

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Re: [Emc-users] 5 axis cinci ball test

2008-09-02 Thread Jon Elson
Greg Michalski wrote:
 Stuart - That is just awesome.  I wish I had toys like that :D (Even 
 with the investment that would obviously be aimed at making money from 
 it's use, the conversion would be really really fun!  Therefore to me 
 it's a toy ;)
Yeah, getting paid to play with incredibly neat toys!  It can't 
get much better than that!

Jon

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Re: [Emc-users] 5 axis cinci ball test

2008-09-02 Thread Jon Elson
Karl Schmidt wrote:
 What interfaces are you using?
 
 Are the PID loops within EMC2?
Well, not to answer for Stuart, but the interfaces are the Pico 
Systems PPMC board set, which is a modular set of boards that 
plug into a motherboard.  There is a 4-axis encoder counter, 
4-axis 16-bit DAC and a digital I/O card with 17 inputs and 8 
SSR outputs.  Up to 8 boards fit into the motherboard, which can 
be daisy-chained together.  This all connects to the PC through 
one parallel port.  All the boards are connected together for 
simultaneous position sampling, DAC update and E-stop.

Jon

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