Bill
I looked at your files but I could see nothing obviously wrong with
them. Did you ever edit these files with a widows based editor?
It sometime helps to restart the terminal session if you get funnies
that just happen without explanation.
Please explain the other strange files in your
Sorry about the double posts my mail client said the message was not
sent and it could not save it so I redid the message.
On 2014-03-30 08:09, Marius Liebenberg wrote:
Bill
I looked at your files but I could see nothing obviously wrong with
them. Did you ever edit these files with a widows
Hi,
after your help my torque problems improved. I think I have enough
torque for now, but I'm facing another problem:
I need to improvise rudimentary control of a small DC motor.
What I want:
Set speed and direction of the motor from G-Code. I don't need encoder
feedback, it would be nice, but
On 30 Mar 2014, at 12:40, Florian Rist fr...@fs.tum.de wrote:
Spare Mesa 7i39 channel
Is there any change I could utilise this unused BLDC driver to power my
DC motor? Like use one Phase against ground and set the PWM rate of this
phase somehow?
Yes. The 7i39 has Hal pins for each phase
Hi Andy,
thank you so much for your help.
Yes.
Cool. :-)
The 7i39 has Hal pins for each phase
amplitude. Set A to 1 and B to -1 for one direction,
and the other way for the other.
Hmm, could you explain this a little?
I guess I have to set-up a pwm generator and pins and signals and
On 30 Mar 2014, at 13:04, Florian Rist fr...@fs.tum.de wrote:
Hmm, could you explain this a little?
I guess I have to set-up a pwm generator and pins and signals and nets...
The 7i39 does the hard work.
You just need to drive the 3-phase PWM pins in the right way. Basically set up
the
On Sun, 30 Mar 2014, Andy Pugh wrote:
Date: Sun, 30 Mar 2014 13:39:08 +0100
From: Andy Pugh bodge...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users]
Charles, from my (German) point of view, the power at 480 Volt three
phase times 5 Amperes (each) times sqrt. of 3 makes some 15 HP. That's
what the machine label wold mean to me at the power supply standards in
our house. look at the power label right at the spindle motors body.
Peter
Am
Located near Chicago
Let me know
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Damn where is this when I need it close by LOL which model is it?
Pete
On Sun, Mar 30, 2014 at 12:01 PM, Igor Chudov ichu...@gmail.com wrote:
Located near Chicago
Let me know
--
On 03/30/2014 08:53 AM, Peter Blodow wrote:
Charles, from my (German) point of view, the power at 480 Volt three
phase times 5 Amperes (each) times sqrt. of 3 makes some 15 HP. That's
what the machine label wold mean to me at the power supply standards in
our house. look at the power label
Hi Andy
You just need to drive the 3-phase PWM pins in the right
way. Basically set up the DC motor exactly the same as the
other motors, but don't use the bldc component. You need a
scale component to create a negative copy of the PID output.
Then drive two of the 7i39 phases with the
On Sun, 30 Mar 2014, Florian Rist wrote:
Date: Sun, 30 Mar 2014 18:42:57 +0200
From: Florian Rist fr...@fs.tum.de
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users]
On 30 March 2014 17:42, Florian Rist fr...@fs.tum.de wrote:
Sounds difficult (for me)...
It's mainly just copy and paste of the configuration you have already
written for the other motors. Just a bit _simpler_.
Would leaving the encoder feedback and the PID away simplify things.
Not really,
Hi Andy
It's mainly just copy and paste of the configuration you have already
written for the other motors. Just a bit _simpler_.
Hmm, I didn't write the configuration for the other motors, I copy
pasted it. I think from a plasma cutter example that you provided.
Would leaving the encoder
...oh and I need to add the new PID to the servo threads:
addf pid.3.do-pid-calcs servo-thread
Right?
cu
Flo
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On 30 March 2014 22:15, Florian Rist fr...@fs.tum.de wrote:
Right?
Aye, right.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
--
___
Hi Andy
Right?
Aye, right.
I'm working on it. Encoder input is already working.
See you
Flo
PS: I'm working on the 2nd generation of this art installation:
https://vimeo.com/72114655 (The head is unrolling thing blue sewing
thread, the motions are generated only from feedback data gathered
I wouldnt mind a Bridgeport. I live in Peoria Illinois Ron N
From: Igor Chudov ichu...@gmail.com
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Sunday, March 30, 2014 11:01 AM
Subject: [Emc-users] Anyone wants a working Bridgeport
I will pick it up tomorrow and will let you guys know for sure. It will be
under power in my warehouse.
On Sun, Mar 30, 2014 at 5:36 PM, Rondal Nannie rl...@sbcglobal.net wrote:
I wouldnt mind a Bridgeport. I live in Peoria Illinois Ron N
From: Igor
On Sat, 29 Mar 2014 19:45:56 -0500, you wrote:
I'm wondering if this mill would make a good retrofit candidate for
LinuxCNC:
http://kansascity.craigslist.org/tls/4397110377.html
The price seems right for a CNC capable machine, I'm just wondering if
anyone knows of gotchas for this particular
Hi Andy and Peter,
I did it. :-)
It works. My configuration is still a total mess, but I'll clean up
tomorrow.
The strange thing is, that the tiny DC motor feels to have more torque
than the much bigger BLDCs. I think there is still something wrong with
my setup. The BLDCs are 75W, 0.28Nm at
On Mon, 31 Mar 2014, Florian Rist wrote:
Date: Mon, 31 Mar 2014 03:23:37 +0200
From: Florian Rist fr...@fs.tum.de
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re: [Emc-users]
I resold something very similar. It is a great retrofit candidate. I also
have some parts for those machines. It will not be a fast machine, just
like my Interact is not a fast machine, but it is a great machine and a
very nice retrofit experience, DC servos, etc.
On Sat, Mar 29, 2014 at 7:45
Your math is way off. A three phase motor uses about 1.75 amps per HP at
480v. So it is a 3 HP machine.
On Sun, Mar 30, 2014 at 8:53 AM, Peter Blodow p.blo...@dreki.de wrote:
Charles, from my (German) point of view, the power at 480 Volt three
phase times 5 Amperes (each) times sqrt. of 3
I'd be very surprised if the motor was 480 volts only.
They are almost always at least dual voltage.
To me, the big things to look for are, not much abuse, very little
mechanical slop in anything, good motors,
working drives if possible or if not, then reasonably priced drives
available, a
On 3/29/2014 8:48 PM, Jon Elson wrote:
On 03/29/2014 01:37 PM, Dave Cole wrote:
Are you familiar with Optical benches/tables? I bought a
5'x8' ground cast iron optical table that is supported by
air bellows although a couple of them are missing. It was
made in three sections and then pinned
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