are O words only used in EMC?
for subroutines and the sort?
I thought they were part of the RS274NGC standard, but I was told they were not
Lerman was it you who came up with O Words?
so not part of the standard then are they
I picked the letter 'O' because it wasn't already used by EMC.
They are not part of the standard.
man I love emc.... just cut another PCB.... a USB to midi convertor
sounds like fun
x has developed some baclash.... have to check and see if pulleys got loose
pcb still looks usable
doesn't take much backlash to ruin a SMD board does it
no... I am getting the depth dialled in, so the lines are very fine.... chris... did you make a vacuum table for pcbs?
jmk-wvm: did you end up making a video of the fusee?
maybe this weekend
* skunkworks is excited :)
following error should be constant after accel at a given speed, today i was called in to lookat a machine whose X wasn't smooth. at top vel it had a FE of 0.400mm +/- 1um but in a certain area it jiggled as much as 50um... worn screw!
and table juddered
LawrenceG: yes but either I don't have a suitable pump or I haven't tried it yet
I'm anxious to see jmk's video too
I met the linux instructor at school today
turns out as of right now the linux class is a senior level custom entrance class
what does that mean?
he said, as an example, he doesnt want to teach why statemnts in shell scripting do what they do, just that the statements do what they do this way. period.
does that make sense?
I could pass the class right now, but I cant take it :(
I don't get it. the shell does what it does because it's programmed to do that
he expects the students to already know how to program, so that he doesnt have to teach basics
I'd make a bad student nowadays
cradek: well, he doesnt want to have to teach why, an if statement in a bash script is worded the way it is
so far they have done a basic ubuntu install, and now they are working on a lfs install
why does turning the steering wheel clockwise make the car go right? because that's the way it's put together
exactly, he expects his students to be familiar enough with the car
that's senior level comp sci?
yeah, intro to linux
that's not comp sci at all
its an elective class
senior level comp sci used to write operating systems
he gives basic instruction, shows where the manual is, and turns em lose
installing ubuntu is not comp sci
eric_u: that's what one of my co-workers did
its just an intro to linux class
not a comprehensive linux kernel class
eric_U: think of it as job security, not doom
"intro" and "senior-level custom entrance" are contradictory, IMO
I'm just sayin' that if you are learning how to install your operating system, you aren't learning how to write one
I dont know, I only had a few minutes to talk with him
it sounded like a simple class
not your fault
but ive been running linux for a long time
I told him Ive been running real time kernels, and his ears went into spook mode
hey, look, the UofA is teaching stricly Java at the intro level, which is far worse then what im going through
that was fast, I found your student record on the web
I can't even get the home page to come up
does anyone else not approve of teaching java as an intro language
no, I think it's fine
it can't be used to do anything but application programming, so it's notan ideal choice
look, granted, I want to learn C but they dont offer it, so its Cpp for me, and were on arrays right now
they offer it, but not as an intro where im at
they don't really have time to start you out with c
thats probably true
when I was in college, they used Pascal (compiled) for the intro classes, and C for operating systems, compilers, and anything else
ive learned a ton, and so far, my assignments have been exceptional, still a lot of bloat in them but blah
and you were expected to learn the language if you didn't already know it
SWPadnos, no assembly?
that wasn't really in the CompSci classes, more in the computer engineering classes
fenn__ is now known as fenn
(I was an EE student, not compsci)
oh, im sorry i havent been around the past week, been pushing the calculus pretty hard
any strong upgrades to 3mc?
I got fed up with the assembler in outr microprocessors lab, so I wrote a new one
is 3mc the leet version?
(the TA told me I ddin't have to show up for labs after that :) )
emc my bad
eric_U: yeah, im running 3mc^2
I think Ill take the guy a emc2.2 disk for the hell of it
the ee department here just went from 6812 programmed in c to basic stamps. I was pissed at them
its all gone to simple plc programing in the industries now
for a microprocessors/embedded class?
mitsubishi and ab have pwend the market
my son can program a basic stamp, he had his playing Iron Man through a piezo buzzer, he's 10
SWPadnos, their senior level microcontroller class
yeah, I saw him trying to learn python the other day
he learned ruby to some extent
he has you to help him right?
I mean your able to assist and direct him to some extent?
I need to learn python so I can help him with it
the best I had as a child was this is the right way to dig a hole, and this is the right way to drive a nail
good to know that
that's mostly what I learned from my dad too, he had a lot of education, but it was in education
I would have never given up on programing, had I had someone to teach me about if statements and the likes
being 12 with a c64 and a book, I was only able to go so far
my son is past that point, he would work on it a lot more if he could do graphics
when I was 10, I did a program that made a pacman open and close his mouth, got pissed when I couldnt make him move
that was 1984 or so i guess
I don't suppose you can unscrew and reverse a ballscrew without balls going everywhere can you?
Thanks didn't want to do something stupid.
if you're careful you can slip something in as youre unscrewing it
same size as the screw
There's an Idea, I may could use the length I have to part off to reverse the nut to the shaft I want to keep.
the new ones come with little cardboard tubes holding the balls in
Hmm didn't know that.
well, reguardless, put a plastic bag over the nut as you unscrew it, to catch any balls that fall out, its easy enough procedure to re pack one
time consuming but still easy
unless you dont have extras
just have to catch all the balls
No problem. I'm well versed in items that fall from what you are taking apart.
i'm painting my floor bright white so i can see where the little screws go
Yep I did grey epoxy and I love it .
SkinnypuppY34: a way to keep the balls in, is use a toilet paper tube, just cut it down the middle, so you can change its od, and shove it in as the nut comes off, and maybe inflate a ballon inside the tube to keep it forced outward keeping the balls in place
how robust is the epoxy, can I move my machines around on it?
Slide around, no ... However I did roll around a 17" lathe with an 8 ft bed on steel pipes without damage.
my machines wouldn't slide, so that sounds good
It's also great for auto work, forget a dolly you just slide on the epoxy
I'd like it in the garage, I need to flatten the floor a little
Here's the paint I used http://www.rustoleum.com/CBGProduct.asp?pid=16
Only time any peeled has been from a leaking car battery
[04:53:02] <JymmmEMC> http://news.yahoo.com/s/ap/20080303/ap_on_re_us/bankruptcy_gift_cards
I saw that earlier
I don't see why people buy gift cards
except to starbucks
my favorite story today is the 5 x $2.2m homes that were burned by the ELF
strangely, all were on the market and none had sold
$100,000 reward too ...hmm....
pretty high reward for something that's already done
reward is just a smokescreen
$11 million down the drain, that's a reasonable reward
insurance and reinsurance...
it could be ELF, just seems awfully suspicious in this housing market
I expect to see a lot of arson
Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2008-03-04.txt
gezar: you should put ngc.vim on the emc wiki (ideally with a license that permits modification and redistribution)
rayh, hello, long time no read. how goes it?
rayh, how goes it?
rayh, that is good to read.
How about you.
rayh, i just thought i drop in for a visit.
rayh, the past several years have been hard years.
cat: /home/terrylrl/head-on-collision.txt: No such file or directory
last 6 aug 2007, i was in a head-on-collision accident. not my fault. i
spent 2 wks in icu and 6 wks in rehabilation. since then trying to learn
how to walk again. my injuries were: left hip broken, left femur broken
in 5 places, right knee cap shattered, right tibia and fibia compound
fracture, 4 broken ribs right side, right lung collapsed. the emts had
to reboot me several times before they could get me stable enough to
remove from the accident scene. haivng two broken legs is not fun.
rayh, right now i am learning how to walk again. would like to get out of this wheelchair.
You have had a run of bad luck, guy.
rayh, legs were pretty mangled
I was thinking about your cat walking the keyboard thing this morning. Still got the cats?
rayh, just one cat left. my grandpa cat died in 2006, junior cat died june 2007. grandma cat, who will be 19yo the end of march, is still here.
rayh, huckleberry finn, my dog, died feb 11, 2005.
Sorry to hear that.
rayh, right now i can barely take care of myself so another pet is not on the horizon.
I can hear that.
rayh, pretty much lost interest in computers and programming. my hardware is all old and dying. lost two main hard drives in the past month. strauss and johann (computers) are both down. this one i am using was an old computer one of the people in efnet/#linuxgeneration had and sent to me.
rayh, the medical bills are going to wipe me out.
rayh, been doing some tinsmithing and mostly cooking and baking.
rayh, take long lasting morphine for the pain.
pump or pills?
been there done that both. difficult to get away from.
rayh, right now pills. got off the pump back in september.
rayh, you still going to names every year?
rayh, names may not have many visitors this year with the economy in the dump and gasoline prices going toward $4.00 usd per gallon. in some ways i am glad i have been driving since the 6 aug 2007 accident i other ways i do miss the independence. having to arrange for a handicapped ride to go to the grocery store is getting old. getting out of the house even if it is just to the grocery store is nice though.
rayh, thank god the house is a ranch. no stairs to deal with.
rayh, no problem
rayh, just babbling here. aimless chatter of an old man.
old my ass
NAMES shut me out the last year they were in Taylor. Refused electricity for the open display model.
I never even took my stuff out of the car. Most of the other guys didn't either.
terrylr: Most of the EMC stuff these days goes on at Roland's place in Galesburg during what he calls CNC-Workshop.com
rayh, i did not realize that names has gone downhill in the past several years. that is sorry to hear.
Yea. Cabin Fever has taken up some of the CNC stuff.
rayh, roland's place is probably 3 hrs from me. might as well be 1000 miles though. long vehicle rides and i still do not do well.
terrylr, a little bird told me that you did some EMC/Alpha work some time ago
SWPadnos, that was a long time ago.
heh - unfortunately all Alpha work was a long time ago :(
SWPadnos, at least 6 to 7 years ago.
(I always wanted one, but never got anything like it until I got my first Athlon ;) )
SWPadnos, actually it may be longer than that.
SWPadnos, back before all the accidents i had bleeding edge stuff.
yeah, it's 2008 already. when did that happen?
SWPadnos: next thing we know, it'll be the 21st century
I want my flying car
yeah. I'm gonna sue Popular Mechanics
jetpacks for everyone!
please, be realistic
ok, just a jetpack for me.
I'll cut my commute time in half.
terrylr, was the alpha work done on Linux or on one of the $$$ unixes?
cool. was it RT, or sim/userspace apps only?
SWPadnos, specially redhat linux
hmmm. I'm trying to remember when the last RH Alpha linux distro was released. it was a long time ago ;)
nice - was there RTLinux or RTAI for Alpha at the time?
I don't remember any RT extensions for the Alpha
(but I probably wouldn't have looked hard, since I didn't have one)
I have a debian on Alpha at home, cant remember version
SWPadnos, the alpha work was difficult. the one alpha cpu would never work with rt linux. that cpu had a design flaw. the hardware interrupts did not work. there was no way for rt linux to hook in.
hmmm. was that one of the "PC" versions of the chip?
SWPadnos, only rt linux at the time.
(the cheaper ones they made as a last ditch effort to keep the line alive)
SWPadnos, no, just a design flaw.
oh - ok
hmmm what was that low end board? the HDAMA or something?
SWPadnos, many people unformautnately had that cpu. people offered to throw money at me if i could make it work. i kept telling them it would not work.
SWPadnos, the multi box something.
oh, did you have a dual-CPU system?
sigh. too bad the Alpha didn't really catch on
at least we have most of the technology in the Opteron
SWPadnos, my alpha was a single cpu. from microway computers.
yep, that was the place :)
SWPadnos, i still have the alpha. do not boot it much any more. it was 500 mhz which was the fastest cpu out at the time.
they used to make some really cool stuff. (still do, but in another sphere now)
I think they got over 1 GHz. I remember looking hard ar a 733 MHz one I think
heh. from a post on the CCED group: "IMO using a laptop to run CNC in a shop is like driving nails with French Bread. Wrong tool for the job."
SWPadnos, all my old sparcs i powered up on summer out on the west end of my lawn and then i proceeded to shoot them with a 20 gauge shotgun loaded with deer slugs. took out my frustrations on them. amazing what a harddrive which is rotating at 7200 rpm does when hit with a deer slug.
glass platters or steel? ;)
SWPadnos, who posted that?
SWPadnos, aluminum platters. they became flying buzz saws. embedded themselves in the sparc chassis
well it has been fun, but physical torture calls . this physical torture person enjoys their work far too much.
ugh. good luck
Since I upgraded to version emc 2.2.3, I am now occasionally getting the following error: "RTAPI:ERROR: Unexpected realtime delay on task 1". What needs to be done to cure this problem?
occasionally as in "sometimes at EMC23 startup" or occasionally as in "from time to time, when I'm running a part"?
err - EMC2, that is
also, is this different from EMC 2.2.2, using identical configuration files (ini and hal)
It usually occurs while the system is idle
you should run latency-test for a while from termal and look at the jitter..
When I originally installe4d emc I had to modify the kernal because my intel motherboard caused latency probs. Paul Corner graciously guided me through that process and we overcame the excessive latency. If I remember the latency I ended up with was about 15uS.
These are the direction to disable smi http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?FixingDapperSMIIssues
if that is the problem. (I would get overruns ever 90 seconds or so)
I am now currently running the latency test.
Now its been about 15 min, have no over runs, highest latency is 12.98 Us so far.
do something nasty on your box
I get 54
Okay I'll get on line
mine is an old 800 meg athlon, was running vnc,firefox and an old cheap video card and a webcam which is ftp'ing to the server
drag windows around and such..
you could also run glxgears from terminal.
Now up to 20.98 Us.
what is glxgears?
just a little opengl program
little gears spinning
what is your base period set to?
what is it up too now?
have 2 glxgears running, 2 browser windows open, one streaming a video its now up to 33.163 Us.
Still no over runs
I don't know - but that is getting dangorously close to your 50us base period.. I could see it causing issues..
That should not be a problem cuz I don't do all these things while I am running emc
glxgears uses opengl, which is the same method that axis uses to produce the 3d preview and backplot, so the performance of your system while running glxgears is appropriate
(if you don't disable the screensaver, you'll find that about half of the screensavers are also opengl software; personally, I turn the animated screensavers off)
Jepler! how is it going?
skunkworks_: pretty good -- I've just spent more time away from the computer lately.
That is good - sometimes :)
I just spent 7 days only touching a computer twice..
it was shakey at first - but I powered thru
I just installed emc2.2.2 iso on a new machine and have some questions.
Do you generally install all the updates that ubuntu recommends?
Does the ubuntu updater also handle the update to emc2.2.3?
Thanks, cradek. I'll go do that.
cradek: could I borrow a $1000?
skunkworks_: ask lerman
darn - thought you where on a roll..
worth a try :))
I thought so..
[20:26:48] <skunkworks_> http://www.cnczone.com/forums/showthread.php?t=53478
last picture shows the livecd booting.. But - darn it all - looks like he is using something else to test.
<skunkworks_> I'll rerun the latency with and then open a new window and terminal and start one glxgears without the other stuff if that is more appropriate
well, the pc crashed after I restarted the latency test - when I went back to it, it had rebooted!
skunkworks_: those are big motors for that little machine
cradek: how do you run a opengl screensaver - I know that the glxgears caused a couple of my machines to reboot.
*reboot - I mean crash X
cradek: we have some of those steppers (slo-syn) - they are not the greatest
we took one apart and cut the center tap to make it bi-polar. worked better
wonder why you would use drawer slides for one axis and linear bearings for the other...
I think they may be about to learn the lesson of grit in bearings
skunkworks_ Well it din't want to shut down normally, Had to reboot twice before it straightened out and now I am again running the latency test and started on glxgears in anothe window
hmm shall I bid http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=180219416476&ssPageName=STRK:MEWA:IT&ih=008
reserve not met yet...
it ain't going for 50 pounds
10 miles from here, broken control, should be an easy emc upgrade
we have a non cnc one in the basement
I like this computer.. http://www.electronicsam.com/images/KandT/late.png
it is an old 1ghz
how to delete image on wiki ?
I don't think you can..
update to new or remove link
Upload a new one named different. I think alex_joni or SWPadnos can do it..
try uploading with same name, it it works, it overwrote the file.
Oh CVS guru. Can you help me?
I'll try, but I'm not a guru
I cant seem to do a checkout (non-anon), but I used to be able to. I'm doing this from my newly installed machine.
did you copy over the ssh key?
I suspect it has something to do with my private key, but don't know how to get it from my other machine.
just copy the whole ~/.ssh directory
cradek: NG. It appears I don't know which machine I did that from -- or perhaps no longer have access to it.
Who do I see to register a new key for lerman?
lerman: if you send me a new key, I'll install it. But I have to run right now. I'll do it later tonight.
How do I generate it?
[22:08:57] <cradek> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?DeveloperAccess
jepler: I know about .axisrc file that I can extend/modify of original AXIS code
but I can't figure way to modify commands.stop or commands.start functions in .axisrc
to be precise I want add one line of code "mdi("sth")" at the end of both functions
micges: i dont think the .axisrc file is the right place, maybe in .../bin/axis? and, you might want to discuss this with the developers.
Im creating configs that everyone can run and test my beam comp
hal module + pyvcp + .axisrc + postgui.hal is not enought
on my system the command "sudo find / -name .axisrc" returns no files ( my system is installed from livecd, and has 2 run-in-place emc2's )
is .axisrc something you created?
you can create ~/.axisrc manually and then axis will automatically execute that code after its start
good night all