YES WE CAN
was warrantee still valid?
oh, no, it just cracked the endmill and ceramic spindle taper.
and the part, obviously.
off to test it out on my plywood flyer
guess tables are better built then I though ;)
well, the part was in the way
or we'd need a new table, too
g28g91x0 worked fine - I then reset the touchoff
bmg: make sure to go back to g90 before you do anything else
or crazy stuff will occur
Only crazy stuff was the failure to put a g0Z.5 at the end of my code. Snapped a new endmill...
welcome to the wide, wide world of crashing
g91 is fun to program for
makes it real easy to relocate or duplicate a pattern
just wish there was a standard G code to rotate about an axis (like G54 but for rotation instead of translation)
it's just not in emc
there's scaling, rotation, local coordinate shifting (to shift an absolute program a certain amount)
there's also a polar coordinate programming mode
really handy for whack bolt arcs and whatnot
also the newer controls, i've found out, have crazy pocketing, facing, etc canned cycles
just like the lathe roughing cycles, you can program the profile and have it automatically rough and finish the pocket
is there a way to run axis without the realtime components and such just for viewing/testing gcode?
Optic: go to wiki.linuxcnc.org, look for Simulator
near the top of the TOC
thank you sir, i'm making some programs to generate gcode and need to test their output :)
that's a great use for it, I do that too
is it standard? I know HAAS has one but I didn't see it in the old FANUC manual
i have the livecd installed in a VM, but the VM hates the realtime stuff
steve_stallings is now known as steves_logging
you can build simulator in there, and it'll work better (not using realtime)
ds3: it's not standard, that i'm aware of, but i think the newer fanuc machines have lots of crazy stuff
toastydeath: that + G91 would make a nifty bolthole pattern drill setup
yeah, it's ridiculously awesome
plus when engineers are like "i'd like holes at 8, 22, 45, 46.6, and 180.444 degrees"
you can say "yes, no problem"
instead of swearing a lot
Anyone have any experience with a paxton patterson table top lathe? Good bad? http://www.ioffer.com/i/73995016
good/bad relative to what
guess the only small comparison are the simlar emco enclosed table tops
that i've ever been around anyhow
i don't have any firsthand experience with them
many people who do insist they're all very similar in performance.
have you posted on the home shop machinist and home machinst bbs
they'll be able to give you the most accurate answer
stay away from pm for a review on that machine, though.
cnczone will have a lot of opinions, but almost none of them will be coherent or worthwhile.
IDK if worth messin with , there was a new one advertized local and I've not yet gotten around to outfitting the enco to cnc<I don't really think its nice enough to bother>
if you already have a cnc lathe project i'd not mess with it
the envelope looks really tiny.
it is , but could use some parts spit out more quickly than i can machine by hand
you are not going to cnc your current lathe?
Been milling a few small pulsejet parts this evening
I'd be borrowing the geckos off the BP, and have to buy some motors at that
I did outfit the geckos with molex connectors outside the box so it wouldn't be too bad
Optic, (and other laser fans): http://online.wsj.com/article/SB123680870885500701.html
apparently they have this poster on the lab door: http://store.schlockmercenary.com/v/vspfiles/photos/P-R37-2.jpg
they also have a sign that says "do not look into laser with remaining eye"
Neo_The_User is now known as NTU_sleeping
hmm, using an AVR + an L298N .. shouldnt that be posible to do without any big troubles? :)
using ADC in for current sensing, PWMs for driving the thingies? :)
i would need 6 ADC channels? (current sensing) and 6 PWM channels right (chopper driver) right? :)
running stepper motors
I keep having similar ideas, don't have the time
is there a multi-axis picstep?
dunno, but the picsteps circuits costs ALOT :)
while L298N isnt so expensive, and AVR is cheap :)
I thought it was open source
but the 2003 someting chip they use for current (sure its 3A while L298 is 2A i think) but still .. it costs 3x as much
LawrenceG is on here a lot, I've seen his stuff on protoboards
something like what you propose is probably the only way to make the low end cheap enough to be worthwhile
every time I try to buy something new, I wonder why I'm not saving my pennies for a gecko
and I've done ok on ebay, but it gets tiresome
i like micro processors as i get to program them myself :P
I dislike new projects because I have an infinite number of them that I'm never going to finish
but dunno how well they perform with 6 ADCs to query, and 6 PWMs to run at the same time :P
do they have 6 capture registers?
the dsp chips that are made for motor control have enough I think, the Freescale ones do anyway
I keep thinking about using IRAMS, it's a full three phase bridge
I'm too lazy to figure out if there are issues splitting the phases across 2 chips though
good mornin all
Is it possible to set up Axis so that when you close Axis and restart it has not lost its original position, so you do not have to redo home and find references all over again for g54 offsets?
set POSITION_FILE to the file name you want the coordinates saved to
in your ini file
there is option for this: [TRAJ]POSITION_FILE
and it works with all the UIs, not jus tAXIS
Is there a reference in wiki on this?
I don't know if it's on the wiki, but it should be in the documentation
it is mentioned here (parenthetically)http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?CoordinateSystems
ok, it's in the integrator manual, page 30
it helps to know what you're looking for though - I'm not sure I would have found it if I hand't searched for it by name
of course this will only work to the extent that your machine does not move while emc is off - a shaky proposition at best. home switches are a better way to reference the machine.
OK, how ever if you restart Axis immediately it is nice to have it come up knowing the position it was last left in
that does seem convenient
never assume a stepper comes back to the same position after a power down
but I'd have to wonder why you shut it down in the first place :)
I have had the program lock up at least one time and had to reboot
in that case, the position is unlikely to be saved anyway
the file is written on normal exit
perhaps troubleshooting the lockups would be a good approach to solving this problem
I had a keyboard failure
so that was the cause of the lockup(s)?
My setup is unique in that I immulate a second keyboard via a set of control swiitches on a control panel
do those run through halui, or do you have a special keyboard controller (like the ones they sell for arcade emulators)?
no I used a 7400 nand gate to interface the keyboard and switches
going to the keyboard port, or some HAL I/O?
the swithes are wired in paralell with the second keyboard. interface throu the keyboard port
you might want to take a look at halui
it's meant to do exactly what you're doing, only through generic HAL I/O
At the time I diddn't understand the halui well enogh to do it that way. I understand it better now
ok, so you're familiar with it. that's good
I haven't yet figured out to do a home all command that way thouugh
well, there's an ugly way, which won't work the same way AXIS does it
but the better solution would be to add a home-all input to halui
Does halui have a home-all pin?
the ugly way is to use OR gates for each of the home pins. you connect the individual home pins to one or gate each, and the home-all pin to the other input of all the or gates (HAL or gates)
no, it would need to be added
I figured that was what one would have to do
the ugly way isn't the same, since it ignores ordering - it would home everything at once
to home all at once
then the or gate thing may work for you
except z needs to be 1st
then homing all at once doesn't work ;)
it could be done with ladder though
wait for home-state to go to some level and then for Z motion to stop, then start the X and Y (and others) homing
why not use gates with halui to do it?
you probably could, but it's very likely easier with ladder
I haven't learned to use ladder
it's fun and easy ( once you know how )
just remember the rule "last one wins"
seems like using halui.n.home and halui.n.is-homed in ladder would be simple to do...
I think is-homed goes true the first time you home
and doesn't go false again (unless you home again?)
I can't test it here at work in Windoz World
hmmm, I don't see an un-home
there is an unhome command now
then that should work if you unhome then home again
but it just resets the homed state (so I guess that's the other time it would go false)
yep, that could work in ladder
input -> ladder -> halui-unhome -> delay -> halui-home
if halui has unhome
which it doesn't
i don't see it in halui
why is it a problem if is-homed stays true?
because if you home again later (after doing a lot of work, say), then the ladder logic will immediately see that Z is already homed
if you want to sequence you would wait for is-homed to change states before starting the next homing
and try to home X and Y immediately
what ^he^ said
now, get ready to take notes, because I'm only going to say this once
I think I ate too much
well, you just may not see that again ;)
and it was only a 2-egg omelet
hmmm. no, never
but 10punds of cheese on the omelet
oh, gopod point. I should put away the cheese
what mill would you use to carve cheese?
but no, only a little sprinkle, and it's good sharp cheddar
a cheese mill
Optic, I'd freeze it, then use an FDA approved CNC for milling :)
oil and metal shavings are not good eats, as alton brown would say
this reminds me od the cheese milling discussion in #cam a few weeks ago
Optic: how goes the laser?
good! we were lasering last night
did you see the new video?
[13:41:42] <Optic> http://www.youtube.com/watch?v=JNg943u_r60
and here are some experiments
[13:42:11] <Optic> http://www.xtdnet.nl/paul/tmp/imgp0854.jpg
i've improved teh ventilation since that video was made
the smoke doesn't rise anymore, it just gets sucked straight out
that's Sweet! as they say down in Arkansas
it's working really well
now you need to engrave the EMC2 logo
it burns powder coat off PC case metal quite nicely :)
the laser totally won't touch the steel though
will it engrave aluminum?
anodized aluminum for sure
Optic: what did you end up using to control the laser? spindle or..
skunk: z-axis, so far
but we're going to try M64/M65
we make our gcode with a safe-height of about 0.001 Z and a cutting depth of -0.001Z :)
you mean M62/63?
neat. How do your drives work?
* BJT-Work needs to make some chips
they're steppers, running of stepgen type 0
the PIC handles the stepping phases
pwm? big ass resistors? or no current limit?
for the steppers? there are some output resistors
our hardware guy is going to post the firmware and schematics
ah - ok
with the steppers on, the voltage and current seem to be right on
have you tried to engrave?
(like a photo)
like raster-mode? not yet...
I don't remember - can your laser switch that fast?
it has about a 100us time constant
we control it with 5khz pwm
we might bump up the pwm speed if we're doing rasters, the laser supports up to 20khz
very cool - sounds like fun
bjt: no, m64/65 ;)
for the raster
there's no way to switch the laser on and off right now without affection motion, but apparently the 2.3 beta has better support for that
we just have to get around to trying it :)
it is easy
i'm writing a little program that makes gcode from a bitmap using m64/65
i'm also trying to get emc2-sim working in a VM on my mac so I can test without sitting at the laser :)
hi Optic, I've done that with my macbook too
works pretty well
Optic, the easiest way to get sim working is to install Ubuntu and then install the emc2-sim packages
swp: i have the livecd installed, and emc2-sim
you just change the emc2 lines in sources.list to emc2-sim
but I get lots of complaints about missing hal modules... do I have to make a custom hal config for it?
you can't have both sim and RT installed at the same time
that's fine, I don't need rt
i'll play with it more tonight
i'm sure it works :)
and the RT kernel doesn't do as well in a VM (not sure if that's true when no RT modules are loaded)
"doesn't do as well" is understatement of the year :)
yeah, that's why I suggested stock Ubuntu and sim packages ;)
I did a ubuntu stock Ubuntu image and installed sim from source and it worked well
swp: ubuntu heron, right?
there are Hardy sim packages
it may even be possible to install them onto 8.10, if you have all the dependencies met
dunno about that though
well, time to shower, while the daily Jaunty updates are downloading ;)
actually, you can ask him -- nick "cradek"
I saw that
and we did too!
I take it all back -- it's not a good idea to ask cradek
* archivist contemplates an ubuntu update while the cnc is running
ask me what now?
why is the sky blue?
oooh oooh - I know
how can I get rich and not get a trip to prison
oooh oooh -I know
"what in the wide wide world of sports is a goin on here?"
it's a long bomb up the midddle, and they're hoping for a first down
are those massive heatsinks people put on geckos really necessary?
or can i just use some thick aluminum plate?
depends on the gecko and the current limit
(thick plate in this case being 0.063 heh)
G201 at 6A
i would have gone for G203V's but eh
wasn't my decision
good switch mode wont dissipate a lot
Mariss posted a formula for power dissipation on the gecko list
it's a couple of watts + (some fraction of an ohm)*current
or something like that
i'll run them at 3A until I get an idea how much heat they put out
ah, here it is:
my non gecko live on a steal plate with no extra heatsink
[15:50:50] <SWPadnos> http://pastebin.ca/1363478
that was for a G200, but I think the G201 should be similar
hmmm. actually, the post says G200, but the question may have been about a G202 or G203
i can't imagine he improved them that much between revisions
does he quote thermal resistance for the gecko as well
jeeeeeeeeeeesuuus what a crap website
in hal users manual, section 2.5, i get errors on 'loadrt freqgen step_type=0,0' unless i 'sudo halrun' ( after '. scripts/emc-environment' in my rip dir) is sudo needed?
you should never run any of emc or hal as root
ok, how to avoid the error?
you didn't say what it is
fenn: I used old computer heat sinks
does freqgen still exist?
insmod: error inserting '/home/tomp/emc2-trunk/rtlib/freqgen.ko'" -1 Operation not permitted
dmesg | tail -30 will be less overwhelming
shouldnt there be a way to automatically grep dmesg for error messages and pipe to stderr?
dmesg | grep "something" 1>&2
or something like that
I can't find the right section 2.5 - which file is it?: http://www.linuxcnc.org/docs/devel/html/
or dmesg > /home/bla/whatintheheckiswrongnow.txt
har to copy & paste from the error system to the email system ;)
if you run from terminal, it's not so hard (if you have a mouse_
i mean so you get a better error message than -1 Operation not permitted
that would be solved at least partially by using useful error return codes
cradek: Th Hal (Hardware Abstarction Layer) Handbook Feb 4, 2009
right now almost everything returns -1, which is "operation not permitted"
tomp, TRUNK or ... ?
dmesg sez HAL : ERROR: pin dir not one of HAL_IN/out/io... Freqgen: erroro: freqgen 0 var export failedd
ah, someone busted freqgen
not me not me
I bet I know who did that (or at least when)
also, it's deprecated - replaced by frequency mode of stepgen
[16:06:10] <BJT-Work> http://www.linuxcnc.org/docview/devel/html//hal_tutorial.html#sec:Tutorial%20-%20More%20Complex
BJT-Work: thanks :-)
i just follwed the manual
feb 4 2009 is too old shesh
I'm sure the manual has been wrong for some time
the hal tutorial needs reworked
wait.. i got no error if i 'sudo halrun'
i di that becuz the word 'permissions' was in the error
tomp, is that actually dirsetup rather than dir? (in dmesg)
I don't think the string in the error is a pin name
hand copying... "HAL: ERROR: pin direction not one of..."
oh - heh :)
ok. dir is actually a pin, so I was confused
I guess it would have said pin "dir" ...
i love example like pin "pin"
pin pin "pin" to the bulletin board
well, so much for trying to rtfm
hey JymmmEMC, did you have to do anything special to get your Artigo to boot (and display something on a monitor)?
SWPadnos: No, why. is it booting but no display?
well, there's no display, so I can't really tell what it's doing
the mouse LED flickers on and then stays off
the keyboard lights never come on
I've tried with KB only, mouse only, both, neither ...
Ok, remove power and open the top cover (one screw). Check the cable headers and make sure they are FULLY seated 100%. I found out that mine they had lifted ever so slightly and caused havoc.
did that, no change
Did you remove and replace the headers?
err remove and reseat?
SWPadnos: Bring it with you. I already contacted VIA and they are willing for me to go in-person and fix/replace mine.
ok, I can probably do that
I wanted to do some benchmarking sooner than that though
oh werll, it's probably too slow
for image processing ;)
latency sucks on it, but it's pretty quick overall.
taking 12MP images from several USB-connected cameras, possibly doing RAW conversion, then scaling/rotating/translating/cropping, then sending them down network
Ah. Well I was willing to setup remote access, but no usb cameras here
I have an IPKVM
there's considerable time pressure for the processing - between 30 and 90 seconds or so total
Is this the 1st time you've ever used it? It comes with WindowsCE by default
yes, I don't think I have powered it up before
I'd expect WinCE or the BIOS to display something though
Does the fan spin?
fan spins up, power light comes on, HD spins up
USB power flicks on then stays off
The usb I found to be the header issue
even if it's lifted slightly causes issues
not the best connectors
SWPadnos: Ok, I set it up... it immediately output
I figured it would. I'll check to make sure I put the thing back together right - I had disassembled it to look at something a while ago
SWPadnos: You gonna have time to hit Fremont when you're here?
I'm coming in the Friday before the conference to visit my cousin in San Francisco
SWPadnos: Ok, that's where they are at. I also want to replace my server in the DC, so you can give me a hand with that - just next door
then driving down to SJ on Sunday some time (maybe mid-day to avoid a third day on the car rental)
if I ever get it built that is
heh, ok :)
how far from the airport is the DC?
SJC that is
I REALLY need to get a new/better PS/2 to usb converter
hmmm. maybe it's best for me to return the car and have you pick me up at the airport
no sense paying for it to sit in a parking lot
I'm always confused by what you have planned
so am I, that's why I write it down
hmmm. I wonder if I wrote this down
Well, when you figure it, explain it to me
I'm also there until Friday morning, so some evening will probably be good
ok, here's the plan:
1: I arrive
2: I do stuff
3: I call you and tell you where to pick me up
4: Profit! :)
5. Jim hides the body
you could do that during step 2
um, YOUR body that is
step 6 bury JymmmEMC
oh hmmm. I must have missed something in step 5 then
Get Free UPS Ground Shipping* on your web order of $50 or more! [enco]
SWPadnos: Well, when you REALLY have a plan, let me now.
I do have a plan
arrive Friday, go to SFO. On Sunday midafternoon, return car to SJC rental location, and then do stuff with Jymmm
return to VT on Friday
(the next Friday that is)
SWPadnos: Well, when you have a detailed plan, let me know.
that's it :)
with dates, times, locations
3/29 is the Sunday I'll be returning to SJC
Neo_The_User is now known as jon9999
yay for PB22-J MMDOE56G5MXP-0VB
such a catchy name
cant imaging what it is
a new 256G SSD from Samsung
I want the real write qty till a block fails spec on SSD's
this was mentioned today in another chan http://www.engadget.com/tag/fusion-io
alex_joni: I would have said RAM, but SSD is close enough memory/storage
humm, what is the fastest the parport can switch on and off?
depends who's controlling it
but usually somewhere around 1.2..2 usec for a full toggle
that's about 500kHz if my math is right
obviously in the real world you can't do that
I mean you could set up a program which does only that, but nothing else would work
JymmmEMC: seen http://www.youtube.com/watch?v=96dWOEa4Djs
alex_joni: you make me sick!
JustinXJS2_ is now known as JustinXJS2
good night all
finally won an auction!
[22:44:58] <dareposte2> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200318469116&ru=http%3A%2F%2Fshop.ebay.com%3A80%2F%3F_from%3DR40%26_trksid%3Dm38%26_nkw%3D200318469116%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1
hope i didn't get ripped off
i will get to put EMC on a mill now I guess
not a bad lookin mill for 1k
cool whats it gonna cost you to get it home??
free to get it home
borrowed a friends tandem trailer
about an hour
not so bad
a tank or so probably
hoist it of how??
i think i'm going to have to take the head and knee off
or do you own a forklift
then hoist it off with my 1 ton
don't own a forklift
i picked mine with an engine lift into my garrage by taking the head off
that sounds like it will be my strategy too
off the truck???
off the trailer
yeah took the wheels off lol
next move i used a gantry trailer
take off as much top weight as possible even down to 4' (1M ) high
if you can
if my 1 ton won't pick it then i guess i'll be calling a rigger :)
or renting a fork truck
I got a flatbed to get my 17" lathe , $250 bucks round trip over 100 miles away
i had to take my SMALL hardinge lathe to near least assemby component level so me and 2 son's could get it into the "basement" its in my youngest sons room for now
the dealer is just about an hour up the road from me, and he promised a 30 day return if it didn't work or has major problems
sounds like a sweet deal.. if that what you were lookin' for
looking for a lathe, but i need one of those too
made a low ball offer and they accepted for some reason
the big adventure of getting it home starts on thursday, so i'll be sure to take a picture or two of the painfulness
heck i won 4 martin backpacker guitars in 1 nite after i had the 1 i really wanted.. ;)
that's the way it seems to go
gotta run and pick up a pizza, bbl
but i had LOST every auction by seconds.... its what DO i have to do
i keep accidentally closing this channel
- a small CNC!