Fred,
coil winder ... then indeed you want these multiple revs/s
I agree with Steve, this is a cool application.
His remarks sound usefull. But then, should stepconf not prevent us to
do this?
I configured my system using stepconf and it will just not allow me to
increase the speed above a
Hi Rob,
The computer is plenty fast enough. This is a physics problem, something
like possibility #3.
If my memory serves correctly, EMC will try to make every little corner to
within 0.001mm unless you tell it not to. Try adding this to the top of
the program:
G64 P0.01
This tells EMC it's
With your settings it will take 20 mm to reach max speed. So 20mm to ramp up
and
20mm to ramp down. Do a 60mm move and you sould see max speed in Axis.
Don't forget that Axis does not update in realtime so it lags a bit behind. If
your
moves are short you don't have time to reach max speed.
Ian,
Do a test with a G1 at max speed. You should get the same results as a G0.
If you have a Gecko drive you can tune the low range for smooth operation with
the
trim pot. Is your drive a micro step drive? or are you running whole steps?
John
On 9 Feb 2008 at 18:51, [EMAIL PROTECTED]
John, Ben,
thanks for the explanations.
Meanwhile I fiddled around a bit more with my system and spent quite
some time air milling and after playing around with different
settings I discovered that , as John suggested, higher accelaration
gets faster results. I now got the acceleration up
Kirk-
I've usd View Master a little bit in the past. Good for minor changes, not
major ones. It's not open source, but it is not expensive-$49.
Here's the link.
http://www.pentalogix.com/
I'm surprised you had trouble doing what you wanted in Eagle, although it
can take some futzing (no
Kirk Wallace wrote:
For my own education, I am used to stepper systems not having feedback
which would be required for EMC2 to fault on following errors. How are
these errors being indicated?
EMC's internal step generator keeps track of the number of steps that
have been issued, and uses
Stephen Wille Padnos wrote:
Stepconf sets up the fast thread based on your max velocity settings,
within limits. Your BASE_PERIOD is probably too high to generate steps
fast enough for 144000 deg/min. at 2400 degrees/second * 13.8
steps/degree means you need 3 steps/second.
Kirk Wallace wrote:
On Sat, 2008-02-09 at 18:51 -0800, f m wrote:
Rob,
Let me clarify a bit. The application is for a coil
winder on a non round form. The form will be directly
attached to the motor shaft. I need to velocity
modulate the speed of the A axis as it goes around
corners in order
I just sent my serial DAC gerber files to a fab house. I had to hack the
silk screen file to include an outline and a couple of features that the
Eagle CAM refused to pick up as silk screen features. What I did was
find the Gerber code of the features in the other files a pasted it into
the
Thanks for the reply Javid.
On Sun, 2008-02-10 at 11:34 -0600, Javid Butler wrote:
Kirk-
I've usd View Master a little bit in the past. Good for minor changes, not
major ones. It's not open source, but it is not expensive-$49.
Here's the link.
http://www.pentalogix.com/
The (my)
Thanks Brian (and others).
I now have more speed and I now know much more about how TRAJ works I
think, however, I still have one little problem which probably didn't
occur at the low speed and which I don't seem able to get rid of. When
the motor starts to move, it does two or three steps and
Stuart Brorson wrote:
* Thirdly, Eagle evidently doesn't fulfill your needs, so I'd suggest
you try a different package. I don't know why you aren't using an
open-source design suite. The cannonical electronic design suite for
Linux is gEDA/gaf for schematics and netlisting:
On Sun, 2008-02-10 at 13:00 -0500, Stuart Brorson wrote:
... snip
* On the open-source side of things, a decent Gerber *viewer* is
gerbv:
http://gerbv.sourceforge.net/
An interesting, new feature of gerbv is that it will re-export Gerbers
which have been read in. Currently, this
Thanks for the reply Javid.
The (my) problem with View Master is that it is a Windows program.
Yeah, I'm not a fan of the MS Virus either, but have too much specialized
software (mostly development tools) that is only available for Windows. Some
vendors are starting to catch on, but not
Stuart Brorson wrote:
Disclaimer: I am also a gEDA developer too.
Cool - we got you to de-lurk
*chuckle*
I've been lurking here for two or three years. Someday, when I have
scads of time, I want to get a mill and fiddle around with EMC. Right
now, however, I have too many other
John Kasunich wrote:
Stuart Brorson wrote:
One of gEDA's big strengths is that the netlister, gnetlist,
was architected so that users may write their own back-ends which
translate their designs (expressed graphically) into netlists of their
own choice. Right now, gnetlist supports about 20
Hi Stuart
I do not know how difficult it will be to te code for 3D compensation in 5
axis world.
I want to say how it looks to me.
1. On solid model need to identify equal size triangle with 3in each a side.
2. Machine should move ahead and heat part in designated area of part or
fixture.
3.
Is it possible that the reason that I see such violent jerking when leaving the
home
switch (much greater acceleration than a G0 move) is because of this?
In theory EMC will never ask for more accel or velocity than the limits
specify, but there are some very difficult cases. One of
Doh! Of course, a link to my site would help:
http://www.theblossers.net/index.php?section=15
Stan Blosser wrote:
I just posted a blog article on my site regarding my recent stepper
torque measurement project. Not directly relating to EMC, but I felt
it relevant enough to share here. :-)
On Sat, Feb 09, 2008 at 10:44:17PM -0800, Kirk Wallace wrote:
I just sent my serial DAC gerber files to a fab house. I had to hack the
silk screen file to include an outline and a couple of features that the
Eagle CAM refused to pick up as silk screen features.
Tried just now, so should
IIRC - some years ago there was some talk about limiting force on
each axis or the x,y vector.
I don't think it is easy to do but something to think about. I have
no idea how much difference there
is between the forces for a 'good' cutter and a cutter on the edge
of going bad.
Something
I'm not an expert on AC servos (or servos at all for that matter) but I
suppose the same tecnique could be used to measure torque on nearly any
motor, but keep in mind it is an offline process. This is not something
done directly by EMC or the motor controller.
The setup for my
Paul,
I am about ready to start on the mac port :)
I am trying to decide onwhich way to go.
1. install xcode and try to get rtai to work on a 10.4 10.5 kernel. I
have done a bit of digging into this and havent had much luck in finding
anyone who has don it. downfall as i dont know
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