[00:23:59] <skunkworks_> http://www.electronicsam.com/images/KandT/conversion/shiftlogic.JPG
[00:24:16] <skunkworks_> http://www.electronicsam.com/images/KandT/conversion/shiftlogic.JPG
[00:24:37] <skunkworks_> http://www.electronicsam.com/images/KandT/conversion/loopexp1.JPG
[00:24:50] <skunkworks_> http://www.electronicsam.com/images/KandT/conversion/loopexp2.JPG
talk amongst yourself
Man, that was the fastest HIT&RUn I've ever seen =)
He posted 4 lines, the first two were identical - wonder if he left out this one:
[00:33:01] <jtr> http://www.electronicsam.com/images/KandT/conversion/loopblock.JPG
jmkasunich SWPadnos: Ok, what the hell is it (really)? http://www.am.pepperl-fuchs.com/pdf/documents/eg06_p137_kfd2-sd-ex1_36.pdf
is this a game of stump the dummy?
its an isolated supply for use in areas that are or could be dangerous because of flammable or explosive fumes or vapors
eric_U: Well, If I'm the dummy and I'm stumped, then yes it is
"intrinsicly safe" means the power is limited, such that if you short it out (or any other malfunction) there isn't enought spark/heat released to ignite the vapors
jmkasunich: Ok, then I'm a tad confused here... It's still delivering electricity to a hazrdous area, so what am I missing?
jmkasunich: ah, ok
jmkasunich: So if it was monitoring (lets say) some gas line and fubared, it wouldn't produce a spark to ignite any leaking gas?
for example - the circuits in an ordinary gasoline pump are probalby intrinsicly safe
jmkasunich: (basically) how does it do/prevent that from occuring?
jmkasunich: gas station makes sense.
I don't really know the how's - I don't get involved in such things for the most part
my one involvement was years ago - the company I worked for made a micro-ohmmeter
it was used to check the bonding between parts of an airplane inside the fuel tanks
jmkasunich: Ok, np. I was just curious how it does that - sounds kinda interesting.
it was intrinsicly safe - the voltage and current at the test terminals were limited by redundant circuits to avoid a spark
the general concensus was that the circult was black magic, and nobody wanted to work on it
(the original designer had retired or moved on or something)
[01:07:13] <JymmmEMC> http://www.omega.com/techref/intrinsic.html
usually for micro-ohmmeters, you put an amp or so through the resistance and measure microvolts of drop
but for intrinsic safety, you are limited to milliamps
so you are trying to measure nanovolts
it was more like a few hundred nanovolts to a few microvolts, but stiff effin tiny voltages
there were all kinds of analog tricks in that thing
jmkasunich: Well, I guess I'll just toss this in the parts box and wait till I start working on some explosive project or something then =)
"Yes that's right boy and girls you too can have your very own personalize exposives! Have your enemy's mug carved on the bomb you plan on blowing em up with to give that persoanl touch in all you do!"
The Boss! The Mother-In-Law! The Ex (very popular)!
tomp2 try to leave me will ya!
* JymmmEMC /dcc's tomp2 a personalize bomb! LOL
how i do that?
tomp2: depends on your client
it always worked before, same box same client
he put a space in front the first time
jmkasunich: Yeah, I did a barter at the local electronic surplus store... Got a full SS enclosure (might be too small for the new controller) w/ 24VDC@15W DIN PS, two safety relays DIN, DIN fuse holders, LED illuminated ESTOP, and a couple other items.
what did you have to give? your left arm?
can't replicate it
jmkasunich: two of these... http://www.b2net.co.uk/hp/hp_procurve_4000m_switch.htm
I ment http://www.electronicsam.com/images/KandT/conversion/loopblock.JPG
jmkasunich: They were asking $125 for it, they offered $100 for both HP switches which I got for free (and have one still here) and we jsut traded striaght across.
jmkasunich: I was watching an ebay auction on the HP switches, it sold for $25, so being offered $50/ea wasn't too shabby.
don't forget to send your sales tax into the governator
jmkasunich: Just batered, no sales tax at all =)
ever notice how hard it is to operate a machine tool with a cat in your lap?
were you trying to push it onto the cutter?
no, I sat down at my desk (a few feet from the machine) to edit the program
and the cat is keeping me from getting back to the machine to run the program
its just distracting you while the other cats are using your machines to make parts to take over the world ;)
I only have one cat
that's what it wants you to believe
(keeps them from plotting)
how good is SS as a thermal conductor (heat plate)?
depends on alloy
bummer, but ok =)
some of them are bad enough that you can have a one end in a fire glowing red and not feel anything on the other side just 18inches away
[01:44:11] <jmkasunich> http://www.engineersedge.com/properties_of_metals.htm
OTH, it is better then keeping things suspended inside a vacuum ;)
silver: 247, copper: 231, aluminum: 136, steel, 26 to 37, stainless: 8
or should I say... ewwwwwwwwwwwwwwww
jmkasunich: quick, look up diamond =)
this table only has metals
Oh, btw... this is fscked.... http://www.foxnews.com/story/0,2933,190586,00.html
(safe for work)
JymmmEMC: hey.... do you have an HF radio hooked up?
LawrenceG: I dont have an hf rig, only 2m and 70cm
ok... just listening to a BC net tonight on 3.729mhz and signals are good
LawrenceG: Ah, yeah.. no 11 element beams here =)
JymmmEMC: you have HF privs?
not on my lot!
Oke guys thanks a lot for helping! See ya tomorrow!
i have a bar 1"x1.25" and 61" long, it's clamped on both ends (only there).
i'm worried about how much it might deflect just due to its length.
there is no load. before i build it, how can i estimate the bow?
beam deflection equations
thx, will google :)
you are worried about its deflection due to its own weight, or will there be additional loading?
no load, supports edm electrodes.
yes, just its own weight
[02:15:11] <jmkasunich> http://www.engineersedge.com/beam_bending/calculators_protected/beam_deflection_1.htm
yep, gotta look up modulus of elasticity first :)
you'll also have to google "section properties" to find the formulas for moment of intertia
good resource, thx
modulus for any steel is 30,000,000 psi
i'm thinking i may need to tense it ( like tensing a long leadscrew)
if you have a machineries handbook, beam formulas are in there too - the strength of materials section near the front
pcb-gcode eagle ulp fucked my
run pcb-gcode-setup, Machine tab, Feed Rates section, XY in/min set at 8, Z in/min set at 2
WTF IS G1 Z-.005 F8.
.005 endmill dead
2ipm was kinda fast, yeah
8ipm is like ohno wtf
renesis: did you dry run it before hand?
no i never thought to its never been a problem before
its my fault for trusting stupid cnc machinist eagle script coder
you've done other PCB's with the same SW before?
prob a dozen at least
with a 30d conical, too
which apperently was plunging at 8ipm this whole time
nice their yahoo group has moderated membership
im glad i didnt put 'complaints about your crackheaded gcode output non-algorithm' in the neccessary for registration comments to group owner section
that would have been mean
[03:45:44] <JymmmEMC> http://farm4.static.flickr.com/3055/2362406945_2f32af46af.jpg
[03:46:20] <JymmmEMC> http://farm4.static.flickr.com/3079/2362406571_b59454fd43.jpg
[03:47:01] <JymmmEMC> http://farm4.static.flickr.com/3273/2363238128_d73fc0efdd.jpg
you wire that up?
tomp: Ha! No I just got that today as you see it
looks nice, maybe from food industry. wish i had a nice wire labeler like that
[#emc] "This is the #emc channel - talk related to the Enhanced Machine Controller and general machining. Website: http://www.linuxcnc.org/,
wiki at http://wiki.linuxcnc.org/"
JymmmEMC, that looks like a nice box
is that two safety relays and a reversing contactor?
trying to figure out how to make matlab print out in hex
format hex; joe = 200
matlab prints joe = 4069000000000000
dec2hex( value, numberOfHexCharsToDisplay )
[05:18:41] <tomp> http://www.math.ufl.edu/help/matlab-tutorial/matlab-tutorial.html
for non-negative numbers
[05:18:49] <SWPadnos> http://www.mathworks.com/support/solutions/data/1-1AQON.html?product=FP&solution=1-1AQON
oh heh - it prints out the hex representation of the floating-point number
(in the "format hex" example)
yeah that's what the help sez on further review
if you set joe to -200, you'd get C069000000000000
how does 200 translate to 4069?
that would be a good stump the dummy question for an evil professor
it's not 4069, that's 0x4069000000000000 in 64-bit IEEE754 double format
so that's mostly exponent
"The hexadecimal display corresponds to the internal representation of the value. It is not the same as the hexadecimal notation in the C programming language." look like you got to write a 'normal' hex print routine
SWP gave me the routine
dec2hex is supposed to be that converter :)
I use hex2dec all the time, should realize there is the opposite
now how do I get it out of that stupid hex format? :)
what do you mean?
format hex is persistant
oh, maybe format dec?
I don't know matlab at all, I just googled for the answer
I did format short g
sad thing is, matlab is a thin wrapper over java emulating c
if you install the wrong jdk, it stops working
[05:29:19] <SWPadnos> http://www.cs.umbc.edu/~squire/download/summarym.txt
I have programs that ran on 100 MHz pentiums that run out of memory on 2GB P4s
according to that page, you can print stuff using C-type format strings
str = num2str(A, format) using %X for hex ?
that's true, most of stdio.h still sorta works
I should just do it instead of bullshitting about it
steve's logging just got all the blackmail material it needed and left
integer math stinks
kibbitzing on the emc channel finally pays off
a = [6 10 14 44];
fprintf('%9X\n', a + (a<0)*2^32)
b = reshape(a, 2,2)
hex? eigenvalues? too tired, g'nite
eigensystem decomposition clears the room every time
wordwrap in a programming editor is not the best idea the kdevelop people ever had
The 4th bit would be the spindle high/low range. So 4 bits do the actual shifting.
look - its binary counting ;)
The things the though of back then
4 bits driving and one sensing pressure to see if its changed over as the original
Yes - there is a end of line pressure sensor to make sure all of the rails are engaged
(plus a spindle lock solenoid)
(for indexing the spindle for keyed tooling)
(tool changes and indexing say a boring bar out of a hole)
I'm still having a problem with 2.2.4 and the numeric keypad in Axis
I don't know if anyone is around right now that would be able to help you.. Jepler is probably the one you want to talk to. Maybe do a bug report?
what is it doing?
Acts as if the numlock status is null - ie left, right, up, down, et.c
Where do you post a bug report (sorry if that's a stupid question)
hold on - let me get a link
sorry got side tracked - thanks alex. Do you need to be a logged in now to make a bug report?
you don't, but it's preferable
if we need further details, we don't have any means of contacting the submitter otherwise
[12:52:37] <alex_joni> http://www.linuxcnc.org/content/view/48/13/lang,en/
Nope. I just didn't see the submit new link.
good morning alex.
I'm working through the sourceforge registration right now, I saw that it's preferred. Thanks guys.
good morning peoples
jack_live: good morning
I have strange question
Is it in theory possible to change one of the basic EMC parameter coming from ini file (like speed_max, acc_max, limit_min, limit_max) ?
somehow by the NML command or sth
Powell's books just notified me that "Parametric Programming for CNC Machine Tools" is now available, at more than list price! no thanks.
Does anybody know whether the RTAI3.6 patch file (2.6.23-i386) is incomaptible with the linux kernel 188.8.131.52 ?
There is lots of messages "Reversed (or previously applied) patch detected!"
that's a good sign that it won't work right
Oh, thanks now I can be sure :) - where should I look now? try 184.108.40.206 kernel or to try a different RTAI version?
I suggest picking your RTAI version first, then look what patches are included, and use one of the supported kernels for that version.
I have not built RTAI/kernel for a while so can't suggest particular versions you should use
:), okay, check all RTAI modules
Oh, one note, itt was overwriting some file with the name ipipe or something... which already is there from adeos? So I think someone did either changed the linux kernel too much or the RTAI contains too much of the adeos already?
lerman_ is now known as lerman
Confirmed, the adeos-ipipe and RTAI3.6 are trying to overwite each other's patches... this time I used RTAI patch first, and now I refuse all attempts of adeos patch to make overwrites.
Now I found a site that describes the new methos! The new EMC2 and Realtime install does not involve adeos patch! http://www.britishideas.com/2007/11/07/how-to-install-emc2-on-unbuntu-710-gutsy-from-scratch/
cnc606, you need to use the ADEOS patches from the RTAI site only
there are any? From what found they are inside the RTAI3.6
they have patches in - err - some directory with RTAI
maybe used to :)
hmmm - until very recently
is 3.6 vulcano?
have a brief look on the manuel here, it describes how to install EMC2 in ubuntu 7.10 from scratch - vanilla kernel patch, etc.
[16:05:47] <cnc606> http://www.britishideas.com/2007/11/07/how-to-install-emc2-on-unbuntu-710-gutsy-from-scratch/
there are 2 patches
one is called ADEOS/IPIPE
the other one is part of RTAI
usually they have the same content
and you can apply either one (but only one)
aren't the hal-linux-* patches the RTAI-ified ADEOS patches?
in base/arch/<your arch>/patches
yeah, usually just the renaming is the RTAI-ifying process
oh.. so the RTAI 3.6 applies it directly and I should NOT install the adeos-ipipe in any case then
things tend to work better when you use the patches from RTAI
Yes, but that renders all install manuals useless and redundant, even the one at RTAI site
well, now you know :)
cnc606: the RTAI 3.6 doesn't apply it directly
you still need to apply it by hand: by issuing patch -p1 < /path/to/patch
Now... I would have been 10 hours younger at this time if I knew that yesterday :)
alex: that is what I understand by the word "install"
cnc606: ok, when I hear *install* I think it gets done automatically.. with little user interaction :)
[16:11:40] <SWPadnos> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#Realtime_on_64_bit_systems
most of the instructions on our wiki tell you to patch the kernel, and even tell you what file to use
this is one of the most current/up to date install procedure for debian : http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Debian_Lenny_Compile_RTAI
(it also largely applies to ubuntu)
Your wiki does not shpw up in top 5 google searches for EMC2 install ubuntu... why?
[16:14:00] <alex_joni> http://www.google.com/search?client=opera&rls=en&q=emc2+install+ubuntu
it;s the top 4 hits when I search
I get: 1&2 - www.linuxcnc.org, 3 - wiki.linuxcnc.org
yup, but yesterday I wasn't using /NCR option with google...
bad loclised search!!!
I wouldn't be mad is the make menuconfig worked at all...
how experimental is feisty (anyone cutting with the experimental pkgs?)
Feisty is non-experimental, but the EMC2/RT kernel packages for it are ;)
I would wait for hardy
skunkworks_: assuming it will ever work
does it look that bad?
I don't know that anyone is cutting with 7.10, but I will say that I've had good success with Chris' experimental SMP packages, which are based on 2.6.20 or so (the same or similar to the experimental packages)
just don't try using SATA with that kernel
I am using 2.6.17-smp in a VM
I wonder if my mill will turn on again
seems to be working quite ok
I have also played with chris' experimental smp packages.. I think there is a keyboard issue iirc. (repeating charactors)
I have not had it happen.
that was in 2.6.17 I think - that's why he made the .20 package
I had no issues with 2.6.17 so far
AH - ok
doesn't turn on?
jymm - looks like I'll be at the Tech Shop Friday - no sense taking the day off
turned on a couple of times, but the spindle sounded a little dry until ithe oil got spread around
turned it on a couple more times, and boom - nothing
I haven't checked the heaters on the overload yet
but I've reset it and let it cool off a bit, which should fix that problem
if that's the problem
thx, i wanted iges viewer (FreeCAD) , it seems to want Feisty
will try ACAD's MDT, i hear it can import IGES
tomp: alibre can import IGES
crap. it's not the heaters
like it could be - I have spares of those, so they can't be the problem
SWPadnos: remember that problematic touchpad?
seems it was a hardware issue afterall
SWPadnos: loose cable :)
it looks like i will get to run an openside planer
jepler_ is now known as jepler
* BigJohnT now has homing switches installed on all three axis YEAAA
you beat me, /me only has one switch on one axis
archivist: one is a start...
its an accurate "one" though
I still have one more to go the floating torch switch
archivist: so how is everything?
waiting to build funds to finish mine
that can be the hard part
especially in this crap trade
I have to make some condiment boxes for a duck pit this weekend so I will be putting the plasma table to the test
they will take a full 4'x8' sheet of 12 gauge steel to make
the switches I'm using cost <$2 US from McMaster Carr
my Z is still mandraulic
this is what i find for duck pit... Orcinus: "Some liberal commenters, for instance, on certain threads I read have devised, satirically, a "duck pit" into which all conservative minions will be cast on the day of liberal reckoning, there to be nibbled to death by a thousand hungry ducks."
wtf is a duck pit, like a goose blind?
you dig a hole in the middle of a field and put it in there. It has a seat across the lenght and fold out cover for the reed to attach to
tomp2: alibre can load/convert IGES
think duck ambush
BigJohnT: ok, hunting talk , gotcha
not for me, I got drafted to do it by my partner
alex_joni: thx, i got the IGES open in MDT, very sophisticated screw form, but really simple to produce
had to go to windows :(
you should have beaten your head against Wine until it worked!
* archivist hides his winbox
* SWPadnos is using Windows daily on this computer ;)
have trouble opening most things in wine, it';s like the mac emulator of years ago, lotsa secret tricks
* BigJohnT makes his living with a windoz box
btw: google hackintosh