ff doesn't "remember" where your session was in X, is ther eanother one that does?
if my max velocity is .1667 would max stepgen velocity of .2 be about right?
that depends on what the motors are actually capable of
i'm not really sure
as far as headroom is concerned, 0.185 should be enough (that's more than 10%)
ten ipm seems to be all, direct drive on the 5 tpi leadscrews
the X is moving the x carriage and the whole y slide
you should probably set the stepgen max just a tad under the max the motors can do, and reduce the AXIS_N max below that number
so it bogs down when i go faster
so i set them all to .1667
tiny tiny motors
if you experiment a bit, you may find that Y and Z can move faster than X, and that's perfectly
and only running on 5V
"legal" for EMC (it handles different limits pretty well)
i almost got my hobby cnc card done
i been combing the net for some bigger motors
(sorry, <enter> is too close to <"> :) )
i still wanna do direct drive
.002 resolution is fine with me!
if you have higher power motors, you're better off using some gearing
why so...? (cause i really wanna no...)
(not bein a smartass)
that's not for resolution reasons, it's because a stepper delivers its max power at or above the corner frequency
if you're below the corner freq, then you're belolw max power
somewhere in the middle of the range you mean?
err - depends on where the corner freq is :)
which also depends on the supply voltage, if you're using a chopper drive
i definately need a better pc to run the emc2 on... 106556 was my latenvy test with a file browser, the text editor, and firefox running
i will be using a chopper when my hobby cnc is done...
what wast the speed of this PC?
don't laugh m'kay?
does it have integrated video?
i found out some of my speed problem.. was because the slides and balscrews had never been lubed
now it studders a lot less
i may be able to go faster
i read that earlier on the wiki
about a cheap pci vid card
get a cheap Matrox card for it, and see what happens to latency
i saw so many machines on the net running emc... which was your swp?
here is mine... ohiopctech.com/cnc/ the pics are from a few revisions ago...
I have no photos of my CNC, since I haven't done the conversion yet ;)
it's constantly being upgraded as far as the machine parts go
[01:55:53] <SWPadnos> http://www.sover.net/~swp/mill/
may still have photos of the machine from before I bought it
yep, some photos there
do the conversion!
but none of the whole machine, which is a Bridgeport, if you can't tell :)
getting to it. I've installed nice ballscrews, and made one motor mount
I have a Z motor mount as well, but it requires some drilling and tapping in the head, so I haven't done it yet
you can make ghetto parts to get it working then make good parts with the machine to replace them
I still need to make another motor mount, then I'll have the impetus to attack the electronics
that's what i did
yep, that's the more-or-less plan
i got my mini mill running a program to peck drill some hole for a fan grille in my control box...
just cutting air.. exercising the machine lol...
holes* about 50 .125 holes
i have been running the program and then checking where it goes back to home when it's done to see if it's repeatable
so far if i do it at about 10 ipm or less... it's ok
no lost steps, motors don't bog out
and it repeats!
i finally got my velocity set "close" to right...
i can bounce the z axis up and down with page up and page down keys
for like 30 seconds...
i am seeing how you can make emc have any kind of personality that you want for your machine...
ehh... ok, have fun folks
I'm thinking about making estop throw a contactor and depowering my mill
if I do that, should I just have the fault signals from my motor drives also throw an estop?
Well, was running RTAI test and glxgears and system keeps crasjing X over and over.
Guess I'm gonna just rebuild. Is using the live cd doing a fresh instll ok?
Man, I tell ya... I've been fighting this for a long long time, between getting replacement parts for the machine itself, replacing the xylotex board, re adjusting the drivers, making the enclosure, dealing witht the ovverheating, etc etc etc, I'm getting tired anymore
It's been almost two years since I started this, and I'm not much more along than I really should be.
I keep the shipping label of the driver and motors pinned to the wall as a constant reminder (as it has the date on it), and I grow weary.
YOU CAN DO IT!
ok, i'm goinfg to taco bell... ;)
Jymmmmmmm: if the system crashes when you run the rtai test and glxgears, you have a hardware problem and reinstalling 100 times won't help
cradek: you're up late
I'm having a very unproductive evening... just wasn't in the mood for coding
so I'm perusing newegg
I've had that urge too
I'm working on smp+rtai kernel packages, got some progress tonight
which urge? blowing off an evening, or perusing newegg
new hardware urge
I'm trying to decide intel or amd...
it was easier when AMD had the clear lead
going for 2 core or 4?
hard to say
doesn't intel have the clear lead now?
yeah, that seems to be the case
although nothing is really clear
hard to compare nowadays
once you do all the brainwork let me know the winner - maybe I'll buy it too
I always bought the competitors chip
thats what I'm using now
I have an AMD too
and what I was planning, until I started looking around more
never had one of those
newegg has intel E6600 for $235, which is several steps closer to the top of the line than any AMDs at that price (I think)
so now I'm looking at mobos it will fit
"you won't have to slow down for virus scan" (intel propoganda page)
I never have to slow down for virus scan
yeah I don't recall ever having that problem either
my problem is I could spend $600-1000 on a 4 core system that I'd rarely need, or I could spend the same money on a cool laptop (that I'd also rarely need)
if I were smart, I'd probably do neither
I've already decided to be not smart
bought the hard disk the other day - I'm committed ;-)
the internet says intel will cut prices on the E6600 Apr 22
I didn't realize how much cheaper desktop CPUs are compared to server ones
top of the line athlon is only $240, that only gets you about 1-2 steps up from the bottom of opterons
jmkasunich: you said you have a couple working smp PIII machines?
top of the line core duo (E6700) is 485, but the next step down E6600 only 235
I may ask for your help testing tomorrow then
one in a tower, on rackmount
cradek: Yeah, I'm going to install on a another system
I should be able to get the tower running
Dual P3 1g with 2gb ram
I'm pretty sure it has ubuntu on it, might be breezy
the rackmount one I don't think as an OS installed
Jymmmmmmm: I'd like to find me one of those.
jmkasunich: ok cool, let's see if I get myself out of bed tomorrow though
I never get up early on the weekend
of course, that's a disorder
don't look for me before noon
I can try it on my PII first anyway - but if it works I'll want to try it on some different systems
you have P2 smp?
yes the mill is on it
only using one processor currently of course
would be nice to have the second one so AXIS works better
in the best possible world, the smp kernel would run on all machines, and we could update everyone
I'm not holding my breath
I forget why, but reading the help in kernel config led me to believe it wasn't going to work too well to have smp kernel on uniprocessor machines
should boot though
eric_u: I think it's totally normal to run that way - but rtai is what worries me
me too, they probably don't see the purpose of that configuration
the kernel notes say "runs slower on uniprocessor" in a couple of places
smp support has this to say:If
you say Y here, the kernel will run on many, but not all,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
cradek: rtai doens't like dual cpu's?
I think my biggest issue is finding a video card that has some balls for the systems I have. Most are server boards with on board video
03petev 07TRUNK * 10emc2/src/hal/components/boss_plc.c: -Hard coded PLC for Bridgeport BOSS. Completely un-tested at this point.
03petev 07TRUNK * 10emc2/src/ (Makefile Makefile.inc.in): -Added boss_plc.
Jymmmmmmm: what do you need a big graphics card for?
alex_joni so I dont have to wait 10 seconds to switch between apps
if you say..
4mb of video ram if pretty sad
hell X won't even run in anything other than 800x600
sometimes just 640x480
ok, laters filks
what color depth?
use 16, and you'll get more resolution
I do too many graphics to be that low
well. if you do graphics, then 4mb might be too low
I'd get a 15$ card with 16MB at least
try to find a pci card
I have a couple around
and the local fleamarket can spawn dozens more
alex_joni stop on by =)
sure, you'll have to buy 10 to get one that works ok.. but at the price..
[07:30:57] <alex_joni> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250104669640&ssPageName=MERC_VI_RSCC_Pr4_PcN_BIN_Stores_IT&refitem=250104754673&itemcount=4&refwidgetloc=active_view_item&usedrule1=StoreCatToStoreCat&refwidgettype=cross_promot_widget
you could even get a 64 meg card these days for not a lot
alex_joni that only has 8mb ram
Jymmm: well.. lots of 64 nvidias
but those are only ok for RT if you use the OSS driver (e.g. no accell)
but not many PCI
pci will be harder to find
[07:39:43] <alex_joni> http://search.ebay.com/search/search.dll?from=R40&satitle=graphics+card+pci+64mb&category0=
and yet another perfect day in geneve
looks like all of next months wages has been successfully ebayed away today
heh, on what exactly?
[12:06:14] <feoc> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190103106527
not heard of them much ...
think there an old make
* robin_sz shrugs
looks big enough for CNC use anyway
want to fit it with a water injected torch if i can
mmm ... why?
more concentrated plasma stream
better accuracy and neater
I find it odd that it doesn't cut with compressed air
new one on me
alex_joni for cutting stainless nitrogen is better
a sort of cheap version of hi-def plasma?
feoc: I know that
I jsut find it odd that one machine can't use compressed air at all..
i bet it probably can
if it will take pure N2 it should be OK on air
robin_sz: that's what I thought too
just coz that what they wrote doesnt make it true
water injection is not something I know about
and im cutting stainless anyway so even if it is i dont care much
alex_joni, seen that?
anyways.. think I'll go out and enjoy the weather
im in geneva again
[12:12:11] <feoc> http://www.praxair.com/praxair.nsf/AllContent/641292709A218CFC85256E7C006B9A69/$File/P-8236.pdf
theres a bit in there about water injection
holy sh*t.. forecast says 80F/27C for tuesday
basicly the water inpinges on the plasma stream and contricts it further
what i have to decide on is if i want to build the table with a water bed or not
did some plasma welding this week
want to try keep the fumes to a minimum so i dont choke myself
under bed extraction is the best way
thats what i was thinking
but the water bed is supposed to be quite good too
catch you guys later
guess underbed extraction would be a lot simpler
just rivet a some alloy sheet around the table and fit a big ol fan
right im gonna shoot gonna go some some work on my mill
water is nice if you enjoy having your parts dripping wet
Hi to All!
Dallur, are you around?
any reason why I couldn't use debian instead of ubuntu?
SWPadnos_ is now known as SWPadnos
do you still need a swap part in this day and age? 384mb
bloat expands to fill the available space
depends what you want to happen if something ever needs > 384
ok, fair enough
cradek: when you said I might have a HW issue, what leads you to believe that instead of posisbles a SW/driver issue?
you're using the same software to run emc as many other people
ok, but I also had many many issues upgrading too
yeah but those were all ... well forget it
lets hear it, not all were PEBKAC
I'm still trying to find that special Apache module for Ubuntu
[15:37:49] <Jymmmmmmm> http://special.apache.org
they have a special one to make your server fall over and become unresponsive to pings
I dont think its in Debian, seems to be Ubuntu specific
[15:40:08] <robin_sz> http://www.theregister.com/2007/04/19/ubuntu_website_down/
Is there any reason why the "EMC Configuration Selector" couldn't display the version info?
Jymmmmmmm: well, debian should work just fine..
welcome to dependency hell :D
debian is a dependency mess.
How do I tell what resolution I'm currently at?
I have such a hard time when I'm using a lo res
try ctrl + alt + +
"ctrl alt +"
to increase it
and - to decrease
Yeah, the switch beteen res, but I want to know what res I'm currently at
I dont know
03cradek 07TRUNK * 10emc2/src/hal/drivers/pluto_servo.comp: silly C90 fix
is it /home/jim/emc2/config the path I can save to and will show up on the menu?
Jymmmmmmm: at the end of "man emc" you can see the currently configured search path for configs
03petev 07TRUNK * 10emc2/src/hal/components/boss_plc.c:
-Added some functionality.
-Did some minor testing.
petev : for a BP?
can you call axis directly?
Fatal server error" Caught signal 11. Server aborting xinit: conneciton to X server lost.
Would that be logged anywhere?
but it'll pretty much just say that
sig 11 is often memory error
is this a new setup, or a proven system that's now crashing?
video or system?
video or system memory?
could be anything
system I think
Ok, I have more ram I could toss in/swap out
bad system ram makes random programs crash, system hangs, etc
run memtest first
it only has 384 in it, I was planning on tossing in 512 at least anyway. More if I can se how much it'll accept
oh cool can install 768MB
I didn't know this..... ECC DIMMs have an odd number of memory chips on the module and non-ECC DIMMs have an even number of chips.
learn something new everyday =)
I think I have a 850MHz cpu around here too
ECC runs a bit slower...
not that it matters any
Not sure what I have yet, just box full of 256's
I'd still like to know what is crashing X. I wonder if the screensaver has anything todo with it.
no errors on memtest yet @ 9%
leave it on overnight
yeah, might toss other ram in it first though
Well, got the 32" TV recycled today, pretty painless and I didn't even have to get out of the car too
they had dropodd centers at the local walmarts
* Skullworks_PGAB remembers when TV's were reduced to floor sweepings at the shooting range...
tv monitor computers etc
Well, the range up here asks no glass or produce. washer and dryers are ok though
no frig's either - freon
And the closest BLM is 125 miles away
where you at?
San Jose Calif
* Skullworks_PGAB heart bleeds for you...
I kinda figured it was CA - with there extra speciall tax on electronic goods to fund the recycle pickups
* Skullworks_PGAB grew up in SoCal
You a valley boy?
still love listening to KROQ reruns from the 80's that are streamed from live365.com
* Jymmmm misses KROQ
or was it 106.9
grew up in Glendale, worked in Burbank, then in Hollywood at KABC TV
Oh, just on the edge of the valley
I usd to work at Dow Electronics
some guy got the play lists and station ID drop ins - so 1980 - 1990 is streamed
cool, will have to check it out
Skullworks_PGAB: So, where you at now?
Colorado Springs, CO
I bailed out in March 1989
moved back to the "free" midwest
Heh, as we're drung back my gf pointed to come high rise bldg and told me the condos in there start at $600K
CA is what I refer to as the domesticated west.
I'm like OH HELL NO!
Well I'm native, so... eh
I was too
Ok, tossed in 768MB, will let memtest run all night.
If I can ever get going here, would consider living "elsewhere"
a friend lives in St Helena - property values often jump 200% in 18 months - its truely insane.
( napa valley )
I have a friend that just bought 4 acres and is paying $150/mortgage
makes me wanna puck
location = pick your problems
Just drove my storage place... "Starting at $79/mo" WTF?!?!?!
storage units cost a ton due to local taxes and the insurance they carry
you uy your own insurance
true - but they still carry insurance - or the lawyers would own the joints.
here is a link to the KROQ stream
[20:05:54] <Skullworks_PGAB> http://www.live365.com/stations/lextasy2
he's at the start - doing 1980 currently
anybody speak spanish?
sorry I don't think so
i build a small cnc, with 3 axes and control by parallel port and linux with outb. Somebody know about schematic driver will work with emc?
emc can generate many kinds of outputs for stepper motors on the parallel port: step/direction and many kinds of winding activation
what signals does your control use?
actually manage direct mosfets with 74ls175 and 74ls09
[20:48:00] <cradek> http://www.linuxcnc.org/docs/devel/HAL_User_Manual.pdf
Sapote: see page 75-76 in this manual
i read now
exist any gpl schematic for control?
hehe, gpl hardware
there is the open hardware project
if not exist.. i make them
plenty of people have published designs, but the do tend to be lower performance. Gecko provides a rational upper bound on what makes sense
to build yourself
what do people do for torch height control with emc ?
never mind found it on wiki
Jymmmm couldnt think of anything else to say :)
feoc: if your machine is moo'ing, I think you have bigger problems
feoc: not to mention the bio waster cleanupo
when running memtest, at what point would it typically fail?
at the bit thats broken ?
I didn't know if one portion of the test was more abusive thatn the others
like a burnin test
Jymmmm: just let it run overnight..
anonimasu: I will, was just curious
Jymmmm: I've never had a failure so I have no clue..
I'd rather give it a burnin test, but not aware of any that I can bootup from
i need another computer
dont think iv got enough bits around now
last lot went into the box for the lathe
feoc: bits bytes, whats the difference
Jymmmm: a byte would be 8 pices of computer hardware..
* Jymmmm always thought a byte was somethng you needed a rabis shot for
only if you cant spell :)
that only works if i say spell it :)
lies! all lies!
wonder if its worth using a mesa board for my plasma table
suppose a plain ol parralel setup could work ok
jmk-kayak: That some wifi you got going there, hope it's waterproof for 8 ft
[21:50:16] <jmkasunich> http://developer.novell.com/yes/55238.htm
System realtime clock
Hoo-rah! I finally got the final parts of my Taig CNC mill
However, it took so long to ship that I've forgotten why I wanted it :(
woo hoo, 1 cycke completed, 85 togo
[23:13:06] <alex_joni> http://www.youtube.com/watch?v=w2mj-Sq2oeo
comments at youtube will make you stupid
but it's like watching a trainwreck
can't ... force ... self ... to ... look... away ...
Thus why I don't do youtube