Thanks for that, so far, and for clarifying that #5420 is not absolute. This is
a big step forward.
Now you have me intrigued...
so how do I get absolute?
I had imagined everything would be absolute internally, then offsets would be
added to get current workspace co-ordinates, but if G28 and G30
On 9 October 2012 07:17, Marcus Bowman marcus.thebowm...@virgin.net wrote:
Now you have me intrigued...
so how do I get absolute?
The easiest way I have found is something that I think you have
already spotted (store into G28 or G30 and read back). Otherwise I
think you need to take the
I have a CNC related problem.
I am making small decorative personal gifts using thin wood (5-6mm - 1/4
inch thick) and 6mm diameter colored glass balls (small marbles).
A pattern of shaped holes is cut in the wood with a small cnc router
using 2 tools. A 1/4 ball nose mill cuts to
On 9 October 2012 10:52, craig cr...@facework.com wrote:
I can automate the pick and placement of the balls. ( spheres may be
the easiest item to pick and place)
This sounds like just plunging a tube into a bucket of balls and
turning on vacuum, then retracting when the vacuum increases
Of course you can. I have a machine set-up running like this now. But as some
others have already said, the speed of software step generation will be your
limiting factor. If I had to do it over I would have taken a different route
with my set-up, and used hardware step generation (probably
suggestion: consider alternate method of celebration.
--- On Tue, 10/9/12, craig cr...@facework.com wrote:
From: craig cr...@facework.com
Subject: [Emc-users] Gluing little balls
To: emc-users@lists.sourceforge.net
Date: Tuesday, October 9, 2012, 2:52 AM
I have a CNC related problem.
I
On 10/8/2012 10:29 PM, emc-users-requ...@lists.sourceforge.net wrote:
have a machine that runs latency tests just fine and then gives me a
real-time error when I start LCNC. Never really tracked it down because I
always intended just to move on to a new machine. It can be frustrating.
I
if you have done pick and place then just put something like cotton swab
(but more durable) and brush hole to spread glue. Maybe Hot glue is
alternative too? Then you can use something like reprap extrudor to
apply glue.
On 9.10.2012 13:41, charles green wrote:
suggestion: consider
On 09.10.12 13:54, Slavko Kocjancic wrote:
if you have done pick and place then just put something like cotton swab
(but more durable) and brush hole to spread glue. Maybe Hot glue is
alternative too? Then you can use something like reprap extrudor to
apply glue.
With a tweak: Maybe fixed
I have a suggestion that's maybe not quite as snarky as Charles'
suggestion, but still in the direction of maybe you're optimizing the
wrong problem.
If I were placing approximately 10,000 marbles or less, I probably
wouldn't try to develop a method of having the machine do it. I'd make
If you mount a plastic vacuum tube onto the machine as a pick and place,
then pick up ball, dip in pot of glude, and press into hole. If it's a
press fit, then no need to release the vacuum, just pull off.
Regards
Roland
On 9 October 2012 13:54, Slavko Kocjancic esla...@gmail.com wrote:
if
This is how my CNC PC is done. It has a dedicated CPU for CNC real time
work and another CPU for everything else, like watching youtube, GUI, etc
etc. Never a latency problem that I could detect.
i
On Tue, Oct 9, 2012 at 6:52 AM, Ron Ginger rongin...@roadrunner.com wrote:
On 10/8/2012 10:29
Why not push a stick into a rubber ball of approximately the same diameter as
the glass balls.
Dip it into a pot (or dish) of glue, then dab onto the recess.
Then its the usual cycle of
repeat
Dip, dab, place
until tired
Manually.
Regards,
Marcus
On 9 Oct 2012, at 13:25, Roland
On 9 October 2012 13:24, Bruce Layne linux...@thinkingdevices.com wrote:
If I were placing approximately 10,000 marbles or less, I probably
wouldn't try to develop a method of having the machine do it. I'd make
relatively minor changes to optimize the operation for manual assembly.
However,
On 10/09/2012 08:58 AM, andy pugh wrote:
That is what EMC was conceived as. The whole underlying idea was to
use cheap, off the shelf, PC hardware for machine control, rather than
use expensive dedicated hardware.
Does it need to be an exclusive OR function? Can't we have both?
LinuxCNC was
I agree, Bruce. This would be a very nice option to have.
I've thought something like this:
http://www.embeddedarm.com/products/board-detail.php?product=TS-7350
could be made to work, but I'm not sure the CPU is fast enough
(may not have hardware floating point).
Peter should make a single board
Craig,
You need to give some more detail on your adhesive. Lots of
responses are assuming either your glue is a liquid in a pot,
or is in a syringe. I'm not sure I have a clear idea of what
thinned caulking compound is like.
-- Ralph
The balls are then glued into the holes with a clear
andy pugh wrote:
Why are some people so hung up on the idea that one box (even a box full
of micros) must be used as the machine control?
That is what EMC was conceived as. The whole underlying idea was to
use cheap, off the shelf, PC hardware for machine control, rather than
use expensive
On 9 October 2012 14:19, Bruce Layne linux...@thinkingdevices.com wrote:
I think it'd also be great if there was a small, low
cost commercially available PC that is pretty much guaranteed to work as
a LinuxCNC controller.
There is:
http://www.roboard.com/ncbox-189.html
It took a bit of work
On Tue, Oct 9, 2012 at 9:19 AM, Bruce Layne linux...@thinkingdevices.comwrote:
LinuxCNC was initially conceived to directly control machine motion in
realtime using a parallel port, and it does a very good job of that, but
it now supports a number of commercially available I/O and motion
On Tuesday 09 October 2012 11:14:43 Eric Keller did opine:
[...]
I see no reason to trade the ease of development of a pc environment for
some sort of embedded system hanging off the pc just because some people
want to use old, cheap PCs. The truth is, a new, cheap PC will do the
job all
On Tue, 9 Oct 2012, Ron Ginger wrote:
Date: Tue, 09 Oct 2012 07:52:16 -0400
From: Ron Ginger rongin...@roadrunner.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Mach on Linux
On 10/8/2012
On 10/09/2012 10:05 AM, andy pugh wrote:
There is: http://www.roboard.com/ncbox-189.html It took a bit of work
to get a kernel that worked well, but that is done now.
http://www.linuxcnc.org/index.php/english/component/kunena/?func=viewcatid=18id=20692limit=6
I followed that NCbox-189
On Tue, Oct 9, 2012 at 12:05 PM, Bruce Layne
linux...@thinkingdevices.comwrote:
For me, that begs the question: Is the user interface so burdensome
that the realtime operating system can't allocate top priority to the
realtime job and have enough left over for the user interface?
The reason I
On Tue, 2012-10-09 at 08:24 -0400, Bruce Layne wrote:
I have a suggestion that's maybe not quite as snarky as Charles'
suggestion, but still in the direction of maybe you're optimizing the
wrong problem.
If I were placing approximately 10,000 marbles or less, I probably
wouldn't try to
Gentlemen,
I also coudn't find the NC Box 189 on the internet site of the
manufacturer or his distributors. I sent them a mail asking for price
and availability and got no answer, so far.
Peter Blodow
Ehrenberg
Bruce Layne schrieb:
On 10/09/2012 10:05 AM, andy pugh wrote:
There is:
Bruce Layne wrote:
LinuxCNC was initially conceived to directly control machine motion in
realtime using a parallel port,
No, not really true. The original EMC (1) was conceived to control a
servo machine
with a dumb motion interface board such as the Servo-to-Go. A board with
encoder
On 10/9/2012 9:02 AM, emc-users-requ...@lists.sourceforge.net wrote:
Why are some people so hung up on the idea that one box (even a box full
of micros) must be used as the machine control?
That is what EMC was conceived as. The whole underlying idea was to
use cheap, off the shelf, PC
On Tue, 2012-10-09 at 14:12 +0100, andy pugh wrote:
On 9 October 2012 13:24, Bruce Layne linux...@thinkingdevices.com wrote:
If I were placing approximately 10,000 marbles or less, I probably
wouldn't try to develop a method of having the machine do it. I'd make
relatively minor changes
On Tue, 2012-10-09 at 12:09 -0500, Jon Elson wrote:
Bruce Layne wrote:
LinuxCNC was initially conceived to directly control machine motion in
realtime using a parallel port.
Ah, if my memory serves me correctly we get to blame Matt Shaver for the
stepper interface. ;-)
IIRC he mentioned to
Ron;
I appreciate what you are saying, and, everyone should have a voice.
As someone fairly new to CNC, but not to computers in general, I'm really glad
that:
1) LinuxCNC exists;
2) It has parallel port stepper control.
It allowed me to start really easily, and, it works.
Is it optimal?
The kflop looks interesting... But again - you are stuck with what
bells and whistles are programed into it. Plus for the mach people that
say you need to be a programmer to run linuxcnc - How about this quote
from kflop...
http://www.dynomotion.com/faq.html
-Do I need to be a C Programmer
Thanks all for several interesting ideas. I am currently reviewing
responses.
most of the equipment and the control software for ball pick and place
from several bins of balls has been designed and built and tested, but
is not yet mounted on the machine or tested all together. I think the
On Tue, Oct 9, 2012, at 03:03 PM, craig wrote:
Thanks all for several interesting ideas. I am currently reviewing
responses.
3. dipping the marbles
How can one remove the glue from the top surface of protruding
marbles without causing problems to the surrounding wood surfaces?
On Tue, Oct 9, 2012 at 3:23 PM, John Kasunich jmkasun...@fastmail.fm wrote:
dip only the lower 1/4 or 1/3 of it into the glue, then immediately
place it into the recess in the wood. Glue never gets on top of
the marble, thus never needs removed.
The marbles partly protrude though the bottom
Why not make the holes tight enough that the marbles are a press fit, therefore
not needing any glue.
- Original Message -
I have a CNC related problem.
I am making small decorative personal gifts using thin wood (5-6mm - 1/4
inch thick) and 6mm diameter colored glass balls (small
On Tue, 2012-10-09 at 12:03 -0700, craig wrote:
Thanks all for several interesting ideas. I am currently reviewing
responses.
most of the equipment and the control software for ball pick and place
from several bins of balls has been designed and built and tested, but
is not yet mounted
What if you used something that had like an annulus opening that the glue was
pumped through? Imagine two tubes one inside the other and the glue coming out
in the gap between the two. Maybe you could blow air through the center of the
inner tube to keep glue out of it and there fore off the
On Tue, 2012-10-09 at 16:00 -0400, Todd Zuercher wrote:
Why not make the holes tight enough that the marbles are a press fit,
therefore not needing any glue.
- Original Message -
I have a CNC related problem.
I am making small decorative personal gifts using thin wood (5-6mm -
How about a light/UV cure adhesive? Look up Loctite 5055 or 5056. Drop the
ball in, give a little squirt of one of these, then hit it with the light from
a bunch of UV LEDs in the 320 nm - 420 nm range. These sorts of LEDs are
readily available now for just over a buck each.
N. Christopher
Clarification:
Automation note:
The pick and place equipment does not pick up balls. It simply gates
one one out of the selected bin and drops it down plastic tubing to the
spindle replacement where it is dropped into place. Flexible plastic
tubing permits the placement of the bins
off the
The reality is that a modern dual core mini itx PC board has plenty of
power to drive a 3+ axis cnc machine while displaying a GUI in high res.
I've done it, it works, no issues.
So I don't think there is a speed problem at all regarding PC
horsepower. I think there used to be one when we
Another way you can do the glue application is to use a glue
fountain.. use a pump to push the glue into a vertical tube that flows
back on itself via gravity. Then raise the fountain or lower the board
onto
the fountain to just touch the glue to the surface. I have seen a
number of
I always surf the net while the CNC programs are running, I see nothing
wrong with that.
I play music and watch youtube videos also.
What is the hourly rate for watching ytube?
I need to know so I can tell my customers.This sounds like more
fun than running another machine.
Just kidding
Terry
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