On Wednesday 24 February 2010 01:06:05 Kirk Wallace wrote:
Would anyone have code for an Attiny2313 that can check for an EMC2
watchdog? Or thoughts on what a program might look like? Maybe run a
pair of counters that trigger on the up and down edge of the watchdog,
count an internal clock
On Saturday 20 February 2010 04:39:59 Flying Electron wrote:
Hi,
I was using one of the inputs to read my E-STOP button which shorts to
ground when triggered, but I kept on getting false positives. I looked
at the input pin in halscope and saw a square wave that goes high for
2ms then
On Friday 12 February 2010 21:07:57 Ries van Twisk wrote:
I was wondering about the GPL license. Let's say a company modifies
EMC2 to
better suit its needs. According to the GPL, the modified version
has to be
GPLed. Is this causing some manufacturers to abandon EMC2 for trade
On Friday 12 February 2010 23:14:49 Ries van Twisk wrote:
with customer I did mean the one who is buying a machine running EMC or
a modified version of.
I agree on : 'You do _not_ have to release the sources, if you modify
and
use a GPL project inside of your company'
Ah right.
On Saturday 21 November 2009 11:03:23 Erik Christiansen wrote:
If the cutting operation is hot enough to dissociate CO2, then there'd
better not be any oil about, especially as mist, unless Gene has his
detonation-deadening earmuffs on tight. ;-)
If the heat produced by the cutting operation
On Friday 20 November 2009 18:10:18 Leslie Newell wrote:
Carbon dioxide is 66% oxygen (CO2). As aluminum is very active it will
strip oxygen out of the CO2. That is also the reason why you should
never use a CO2 fire extinguisher on magnesium fires.
Uhm, at work we machine about 80%
On Sunday 15 November 2009 23:59:26 Bryan Mumford wrote:
Be aware that some laptops cannot be used due to power management so
do the latency test before you buy anything
Can't do a latency test on a mail order Dell. How likely am I to have
this problem, and is there no work-around?
I'd say
Hi,
Some time ago I did a quick'n'dirty python script to calculate
a table of SCALE values for linear joints on a stepper system.
It calculates the SCALE depending on the degree-per-fullstep
and units-per-revolution parameters. See --help for more info.
Might also be useful to others, so I
Hi,
I think the following new tool might be useful for some people here.
It's a tool to measure hardware latency. That's latency _not_ caused by linux,
but by the BIOS or something else.
So if you observe latencies beyond acceptable limits with this detector, you
can pretty much go and buy new
On Thursday 30 July 2009 17:03:23 Douglas Pollard wrote:
Hi all, Have just lost my shop cnc computer motherboard gone as best I
can tell. Have been looking on line a new computers and there are a
couple cheap ones with an atom processor 1.6 ghtz a couple gigs of
ram am wondering if
On Tuesday 02 June 2009 19:43:20 Kirk Wallace wrote:
Sorry, I know this was answered recently, but what is the preferred
micro-controller, PIC, AVR, etcetera? My only requirement is that I can
(try to) program it with Linux, preferably with C. I'm looking at
controlling a DC motor (PWM) and a
On Thursday 14 May 2009 03:02:28 Michael Buesch wrote:
Here's a small script that conveniently converts BRL-CAD databases
into gcode. The commandline looks like this:
./brlcad2gcode.sh brlcad_database.g brlcad_object_to_pick file.ngc
brlcad_object_to_pick should be a region or something
Here's a small script that conveniently converts BRL-CAD databases
into gcode. The commandline looks like this:
./brlcad2gcode.sh brlcad_database.g brlcad_object_to_pick file.ngc
brlcad_object_to_pick should be a region or something like this in the
database
that you want to pick for
On Sunday 03 May 2009 14:19:41 C wrote:
insmod: error inserting 'motmod.ko': -1 Unknown symbol in module
Can you please provide the output of the dmesg command after emc start
failure?
--
Greetings, Michael.
--
On Monday 16 March 2009 13:12:23 aaron moore wrote:
I don't understand this stuff, but I am using 2 power supply units...does
that make it any better?
Well, this depends on how your steppers are rated.
If you have 3A steppers, you should have a PSU of at _least_ 10A (3 * 3A + 1A).
You should
Hi,
I've got an interesting problem with my software-stepping desktop mill.
It works fine if I move one or two axis at the same time. But if I move 3 axis
at
the same time, the Z axis (which is the slowest) gains additional steps when it
accelerates.
I notice that the stepper motor makes
On Sunday 01 March 2009 14:59:40 Alex Joni wrote:
I notice you have compensation tables for each axis,
maybe that's where the extra 0.1 mm come from?
No it's clearly additional steps being injected from somewhere.
You can hear that from the motor noise.
And it _only_ happens when all three axis
On Sunday 01 March 2009 14:37:30 Michael Dark wrote:
what happens when you swap drives z/y
You mean swap the electronics parts that drive the axis (not swap
Z and Y on the machine)? Sure, I can try that next. Just need to
swap the HAL pins and the high current connectors to the motors.
--
On Sunday 01 March 2009 14:35:54 Dave Caroline wrote:
Scope the signals, test using Stepconf on repeated reversals.
coupled noise could be on the power supply when all are running.
I had to add pull-ups and buffers to guarantee driving the stepper I use.
Yeah well. I experimented with buffers
On Sunday 01 March 2009 15:17:34 Michael Buesch wrote:
On Sunday 01 March 2009 14:37:30 Michael Dark wrote:
what happens when you swap drives z/y
You mean swap the electronics parts that drive the axis (not swap
Z and Y on the machine)? Sure, I can try that next. Just need to
swap the HAL
On Sunday 01 March 2009 15:53:07 Michael Buesch wrote:
On Sunday 01 March 2009 15:17:34 Michael Buesch wrote:
On Sunday 01 March 2009 14:37:30 Michael Dark wrote:
what happens when you swap drives z/y
You mean swap the electronics parts that drive the axis (not swap
Z and Y
On Monday 01 December 2008 18:57:50 Chris Radek wrote:
On Mon, Dec 01, 2008 at 05:46:48PM +, Leslie Newell wrote:
Is it possible to use EMC with multi-core processors? I see that by
default the kernel is compiled to only support one processor but what
would happen if SMP support was
On Sunday 30 November 2008 10:37:02 Ian W. Wright wrote:
I have just installed a new twin parallel port card in one
of my linux boxes to start playing with servos. Can someone
please remind me where I can look in Ubuntu 8.04 to check
that the ports are working and what their addresses are?
On Sunday 23 November 2008 22:49:13 Jeff Epler wrote:
As far as I can tell, named subroutines aren't in 2.2.x. (they're in
the development version, and your test program works there)
However, I'm not sure why you don't get an error at the first line with
o. That should be fixed to give a
On Sunday 09 November 2008 00:10:42 Jon Elson wrote:
I and J in absolute is VERY odd, not standard at all.
Well, I know at least one spark erosion machine that uses I and J as absolute
coordinates. So at least it's standard for this machine model. :)
Too bad I don't remember the manufacturer of
On Sunday 19 October 2008 13:44:59 Sasa Vilic wrote:
Hi,
is it possible to have to
to- two?
servo motors on the same axis (controlled by
EMC), so they work together and move this joint together.
I think that's only a matter of your stepper driver.
EMC doesn't need to know how many
On Sunday 19 October 2008 16:21:09 Jeff Epler wrote:
On Sun, Oct 19, 2008 at 12:12:58PM +0100, Alan Battersby wrote:
I was looking for a new computer to run emc this weekend. At a local
shop I was told about a new ACER machine with a very small footprint and
it sounded ideal. However
On Thursday 16 October 2008 23:17:25 John Domville wrote:
I have read and printed the 1.3.9.3 notes, don't really understand them.
All I know is that
The default steps set up in the config wizard are all 200. (For every AXIS)
When I tell one of axis to move
1 inch (1.000) the actual tool
Hi,
I just wrote some VIM syntax file for rs274ngc.
Maybe this is useful for somebody else, too, so I'm posting it here.
http://bu3sch.de/gitweb?p=cnc.git;a=blob_plain;f=rs274ngc_syntax.vim;h=7db0a3379f61e626e3ff9bca019091aa76651354
I use this with the pablo colorscheme in gvim.
I find this way
On Monday 06 October 2008 04:31:31 John Kasunich wrote:
richard harris wrote:
By code I am referring to an entire g-code file some G0's some G76 etc...
What modal value would effect G76's ability to properly calculate the
feed rate? I should mention that even when it threads at
On Sunday 05 October 2008 22:35:37 Geert De Pecker wrote:
Added a scaler and the rpm display is now correct. But still the strange
move on G33 Z10 K.1: at first it seems the Z axis is pulsed to move.
During the move, the motion becomes smoother and smoother, at the end,
almost a very smooth
On Saturday 20 September 2008 19:49:33 Jeff Epler wrote:
On Sat, Sep 20, 2008 at 07:17:12PM +0200, Michael Buesch wrote:
Hi,
I was wondering if emc2 could somehow mirror and/or rotate the G54, G55,
etc...
coordinate system. I couldn't find anything in the docs.
Thanks for any help
On Sunday 21 September 2008 21:05:13 Christopher Purcell wrote:
I would like to improve my home-made 3D wood carving router. It has
stepper-driven 1m long THK ball screws (bless you Ebay) which seem to
be moving exactly as EMC2 commands, now that I have Helical couplers
fixing the
Hi,
I was wondering if emc2 could somehow mirror and/or rotate the G54, G55, etc...
coordinate system. I couldn't find anything in the docs.
Thanks for any help. :)
--
Greetings Michael.
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