* LawrenceG scratching head looking for nice simple alsa sound code examples... read, write and init
there are several rude sayings that come to mind....
ok, enough firefighting for one day... send an email, take a shower, eat dinner, and relax
a couple of shots of fireball in my future...
hmmm...party sounds GOOD!
'specially the loose women part
but no tub girls
well if you are all going to be so quiet....
I'm going back to the music room
les see how you are... you throw a party then leave!
hops and barely
I gues I am 2.5 legal
* Jymmm hands LawrenceG a walker
Isn't this channel for cnc discussion?
thanks... can I get a scooter that does 140
you can get ones that go 115 in mykonos :>
Sean-R: Yep, CNC beer!
its pretty scary
LawrenceG: would you like that in a V8 or V6 ?
solar powered for me.... im cant afford gas or diesel
LOX + rubber makes good rocket engine
makes for a quick ride
lox + anything flammable.
lox + delrin, lox + rubber, lox + kerosene, lox+hydrogen, lox+human flesh, whatever
lox + magnesium + h2o
that seems a little redundant.
ever had a magnesium fire?
i've played with magnesium on fire
I block of magnesium on fire
a block of magnesium on fire
Mg + H2O just does (iirc, don't have a periodic chartt handy) MgO2 + H2
so why not just have lox + h2
Jymmm has changed the topic to: Welcome to the Enhanced Machine Control forum - Support and development of a linux based CNC control. | Home page www.linuxcnc.org | Regular Developer's meetings every Sunday between 14:00 & 18:00 GMT | General linux discussions and support the rest of the week. | Final release BDI-4.30 | Six people have ops capabilities - Lucky dip ! | wiki go bye-bye blame alex
it's a joke son
ok, he isn't known to bring down wikis then?
no, just loose women
Jymmm has changed the topic to: Welcome to the Enhanced Machine Control forum - Support and development of a linux based CNC control. | Home page www.linuxcnc.org | Regular Developer's meetings every Sunday between 14:00 & 18:00 GMT | General linux discussions and support the rest of the week. | Final release BDI-4.30 | Six people have ops capabilities - Lucky dip ! | wiki go bye-bye, Jymmm blames alex
and les too
les just playing les
whats an 'indexable' endmill?
just an end mill with removable carbide inserts
probably something I don't want then
well, carbide tooling is great, but needs more power. Not always the best on small machines
A good sherp m42 end mill will often work better
I was shop looking on ebay for some tooling is all.
not a lot up there actually
but you need router tooling not mill...right?
but where am I gonna find 1/8" that can plunge cut in a router bit?
or 3/8" plunge
well router collets usually only handle 1/4 or 1/2
Yeah, I found some 1/4" to 1/8" adapters
I use my shop made tool holders for small bits
so my .01 bit with 1/8 shank actually fits into a holder that uses the 1/2 collet
course all that is about to change
since I am getting a different spindle
either iso 30 or ER 25
Oh, I meant to ask you les...
iso holders are expensive...$75-100 each
is there a theoretical limit on how fast you can cut feed a endmill ?
or in general
wood, plastic, in general
well there are rpm limits on larger cutters
as far as feed and speed...iut's chip load that determines it
commercial mdf cutting operations for example
I was thinking more along the lines of.... 1/4" ballmill, 1/2" into mdf, and how fast could I feed it maximum
the generally go 18-24000rpm, 800-1200 ipm , 12.5-24 hp
you are power limited
at high speed on the router you will be at around 100 ipm max
maybe a bit small but for small cutters this is usefull http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=64812&item=7546125302
I was looking for some guideline to help prevent breaking bits
smaller bits that is
he normaly has a few on ebay but no current ones advertized
best guidline is not to go depper than the diameter
les ok, that's easy enough =)
often industrial stuff does do cuts deeper than diameter...but for smaller mahines it's safer to do shallow cuts
just timed out
for example your 1/4 bit in a 1/2 cut would prob pack chips in the groove
spiral upcut would clear the chips...but I don't recommend using then with a standard router
the work tends to suck up and the bit tends to loosen and pull down
it's REAL bad when that happens
what like the piece you cutting ending up stuck on the bit , getting pulled from its fixings and spinning with the cutter at XX rpm
yeah that sort of thing
or the bit pulling down cutting the table, breaking, and getting slung out
router collets in general really hold poorly
I have had bits pull down and hit a steel bolt recessed in a spoilboard at 200 ipm or so
the tips of a 2.5 cm bit are going around 30 meters per second
exciting when it shatters
finding it hard getting a milling cutter with a 1/4" shank , even a 1/4" cutter
I have plenty
2 and 4 flute
What type of tooling should I use to actually CUT apart pieces like in wood or plastic?
when plowing a groove odd flute number is better
even number has on side climb milling, the other conventional
so a single or 3 flute is better
only one side engages the work at a time
[15:46:43] <Jymmm> http://cgi.ebay.com/2-Flute-1-8-Dia-Ball-End-USA-Carbide-End-Mill_W0QQitemZ7550002070QQcategoryZ25260QQrdZ1QQcmdZViewItem
for cutout of say 3/4" stock a 3/8 or 1/2 cutter is best
700+ 100% positive feedback - seems like a good seller
_AchiestDragon is now known as AchiestDragon
price looks fine...but that bit is not for wood
ok on some plastics
why not wood?
wood needs more front rake and clearance
also...it's upcut....dangerous in a standard router collet
will it cut wood? yeah, but not real well
it will tend to burn
I have a 3 flute 1/4" ballnose just like that
one trick with ballnoses is to tilt the router so you are not cutting with the dead center
if you can
are you getting some better cutting speed now?
without slipping steps?
You mena the skipping steps I was having earlier?
* Jymmm notes... When setting up blank, do NOT set near machine max travel =)
aka... operator error (no limit switched)
you need to be going at least 60 ipm for wood
I've been doing 40IPM, then did 100IPM with that ballnose
oh for mine I have a three stage end limit:
first soft limit
the 1/2" later hard limit with servo braking
then1/2 behind that a hydraulic shock absorber
you need that with servos
when something goes wrong with a stepper drive it usually just stops
when something goes wrong with a servo it usually runs away
I was thinking about microswitches, but they're not sealed (dust), then maybe optical, but again dust, so just waiting till I find something small and reliable
the shocks are tunable
so I set them such that Force times stroke on the shock = 1/2 mv^2 at max rrunaway speed
they are constant force shocks so the integral is just a multiplication
[16:02:41] <les> http://www.acecontrols.com/newproducts.htm
steves_logging is now known as steve_stallings
hey Jymm, saw you mention the wiki, do you have any idea what happened?
steve_stallings: Yes... one big soap opera full of drama.
care to tell me more, private if you like
I'm curious too
I would like to get it restored (I am webmaster for linuxcnc.org)
steve_stallings: Um, not really but if you must know... robin was banned from #emc, robin was hosting the wiki. nuf said.
does anyone know why he was banned?
there are still some useful things at http://www.redpoint.org.uk/cgi-bin/emcinfo.pl
steve_stallings: cane you update dns for it as well?
yes, I run the DNS server
cradek, that is the old wiki, severely out of date
steve_stallings I mirrored what I could yesterday, and paul sent me a copy of the mirrir what looks bigger than what I have, but no search/entry available, just html
steve_stallings 1139 pages from 2005-09-19
Matt also pulled what he could from Google last night. Is that where you and Paul got it?
has anyone asked him for it? maybe he just doesn't want to host it now.
steve_stallings: I mirrored what cradek posted, dont know where paul got his from
I think many were tired of Robin's critical opinion of emc in general
Personally I did not have a problem with that
well, I think software can't improve if everyone is scared to point out the ways it sucks.
Jymmm, where and what kind of mirror, does it run as a wiki?
I guess. I have been pretty critical at times too, but always try to keep a constructive attitude
well crap. I think he was a smart guy.
it would be nice if he would send one of us the wiki info, but I can see why he wouldn't want to.
He is smart. He tends to be a bit blunt. He is also usually right.
steve_stallings just html, not a wiki. it's all we got. you want it?
les: I guess I like blunt. Often, wishy-washy consensus-building crap gets on my nerves.
so who banned him? paul?
paul was unhappy with him
Jymmm has changed the topic to: Welcome to the Enhanced Machine Control forum - Support and development of a linux based CNC control. | Home page www.linuxcnc.org | Regular Developer's meetings every Sunday between 14:00 & 18:00 GMT | General linux discussions and support the rest of the week. | Final release BDI-4.30 | Six people have ops capabilities - Lucky dip !
Jymmm, yes, yours and Paul's if possible to stevesng (at) newsguy.com
got it, thanks
steve_stallings: Good, $37.50 pay at the door! =)
gladly, but I looked and you were not at my door 8-)
steve_stallings : You see that 7'2" 350 guy gut that looks like a gorilla comign towards you?
yea, big targets are easy to hit, where's my varmit gun....
steve_stallings : Just don't miss
well... my 'pseudo pendant' using an ext PS/2 numpad works nicely =)
steve_stallings is now known as steves_logging
oowwww...was just trying to use an 8 degree tapered carbide burr as a reamer...popped it
[17:18:40] <AchiestDragon> http://news.bbc.co.uk/1/hi/sci/tech/4296606.stm
I may not be a tool user here...
looking at tapered 3 flute end milss
yikes 40 buck each
well, just have to bite the bullet
I'll just use HSS....lees likely to pop it
les if you were putting a radius all the way around a sign, would you use a round over bit or a ballend?
* alex_joni is on a train :)
going home finally
wish I could IRC from the train .. but that would require trains
how about your car?
probably IRC is worse than talking on a cell phone while driving
but the drive only takes a couple minutes
well.. my ride takes about 7 hours
so it's ok to have a distraction
oh, this must not be your daily commute
was at a customer
probably I'll go there again next week
installed a big welding robot
so.. what's new? beside 4.30 :D
the wiki is lost because paul banned robin_sz
seen that last night :(
I wonder if the License permits robin to do that
wikis are icky!
the wiki was released under the Creative Common Licence
alex_joni: before worrying about that too much, I think we/someone should just ask him for it.
* alex_joni already planned to do that
alex_joni: I can see why he would not want to host it anymore if he's being excluded. That doesn't necessarily mean he wants to hurt the project.
well let me know how it goes.
ok, will do (probably I'll post to the dev list, or the user list)
alex_joni post what?
the response I get from robin (about the wiki).. if
* Jymmm actives super duper irc stealth mode and looks at all the private messaging going in!!!
wtf are you talking about?
* alex_joni thinks Jymmm lost it
what's new over there?
Got any clues what happened to the wiki.linuxcnc.org
seems to have lost it's link somewhere in the dark places of the web.
what's new is I'm running with 2.6.12-magma and is it hot!
I posted a note to RobinZ but have not gotten an answer.
running out of nicks soon
is this still on?
oh.. ok ;)
well it explains why i havent seen robin_sz around in the last few days , any one know why he was banned
He got a 24Hr ban for excessive trolling.
alex_joni__ is now known as alex_joni_
alex_joni_ is now known as alex_joni
* alex_joni got a mail back from robin
hot isos. steaming hot isos. get 'em while they're hot. http://mirrors.neuron.com/emc-bdi/
* alex_joni wonders if he could mirror it from a train
seems to be working ;)
what i like most about theses isos ... the md5sums match up
really? that's a first :D
mrallen: what bandwidth do you have available on your mirror?
mirror seems good... getting about 300kb/sec avg here.. with many bursts over 500kb/s
downloading 4.30 iso
I get the same from cnczone
that is pretty much max on my cable setup
* LawrenceG hides as every one starts a download
hmmm.. neuron seems a bit quicker (about 400kB avg here)
actually not here ;)
* alex_joni has an idea
let's all play http://idlerpg.numist.net/
* paul_c has to go... maybe back later.
alex_joni: it's a hosted server -- supposed to be 100mbit backbone
yeah.. so is mine ;) (university server, should have the same)
but hey.. a lot of distance between the two
* alex_joni would figure about 20000 km
its been a while since I have seen those speeds here.... all the kids must be back in school
327/625mg 12 min to go
400/625 10 min to go ,)
LawrenceG taking those cheap drugs again huh?
mb... coffee hasnt kicked in yet
Jymmm: thought you people have a thing for abbs.
Jymmm: but we covered this before
alex_joni yeah, but you have to use the correct abbr.
nah.. I don't
I don't like them.. so I can use whatever
alex_joni but your fucked up, so you dont count.
alex_joni has kicked Jymmm from #emc
400/625 9.44 to go
i remember when I used to do this on dialup....
2 to 3 days to get a redhat iso
alex_joni__ is now known as alex_joni_
ajoni: What's happening train going through a tunnel?
darn network :)
smthg like that :))
ok.. train is almost there
and I am running low on battery
catch you guys lateron
see you later
cradek: got my mail?
oh.. didn't notice
that's happy news
I think I can set it up (the wiki I mean), need to see what's needed
I can probably do it if you can't
I'm lost on this wiki discussion and what happened to robinz. Could someone explain it to me in the language an old man can understand?
ok.. will let you know
rayh: seems robin & paul got into their last fight ;)
and paul kicked/banned robin for some debateable reason
so robin decided to leave #emc
and the project overall
and he took the wiki down
because it was hosted at his server
however (after I mailed him about it) he said it's no problem (issue) to send me the content of the wiki to put it up somewhere lese
that's the brief story
ok.. gotta go, running on battery fumes
When we find a server, we should send the URL to SteveStallings so he can update the links.
he only needs to change an entry in his DNS to point to the new one
rayh: no need to thank me for
* ajoni didn't do anything
alex_joni_ is now known as alex_joni
is there a link to your log?
how's things there?
oh ok. just machining more ultrasonic resonators
the piezo thingies?
It's some fairly precise lathe work
a few microns matter
things are lapped
Well, the adjustable resonator is about a 2 mm rod extending through a 1cm deep hole...and it must be leak free just from the fit
a light press fit
Jack_emc2 is now known as jack^^
les: you need to know what you're talking about
* alex_joni doesn't get it at this late hour ;)
the resonator is an adjustable air column
1/4 wavelength long
but at 50-100 kHz a wavelength is tiny
* alex_joni remembers building antennas for 2.4 GHz
I did build a few omni's
turned out just right
same math really...but this is highly non linear
it's shock waves propagating in a mach 1.5 flow
behaves more like ocean waves really
anyway teeny tiny machined parts
stuff like turning a 1mm rod on the lathe
need sharp tools!
I was just looking at your logs to see what in the world robindid to get banned
didn't see anything
don't think it's there
my logger is stupid
that's why I have it in cron
dies once in a while
Jymmm: you there?
don't know why, but this reminds me of you ;)
[21:39:54] <alex_joni> http://www.riemurasia.net/jylppy/displayimage.php?pos=-5540
man that's crazy
a bit too much space ;)
i cant digit during soldering :\
too much things togheter :)
i'm buiding another optoisolator circuit ..
i changed the 2n22222 with mpsa14
seem the same.. looking at the datasheet.. will see
* alex_joni wonders when jacky will learn
alex_joni: what ?
i'm learning ..
i get a cannibalized epson printer board working for 2 axis
when will you get a proper driver ;)
the 3°, i take an lc from another old board and get the third axis :)
next, i will try to drive an HP using dc motors with encoders...
probably.. it will be gecko servodrive
but not yet ..
i need to learn more
and when i will start..
i will build 2-3 machine
not one :P
i need to do a lot of testing yet
some mounth ..
i want axcatly know what emc can do before start
what can do the software, what the HW, what the motors.. etc
yesterday my cousin gave me a big servomotor
a leadscrew 1 mt he bought some year ago.. E. 150 from canada..
i need to do some test
next, we'll start building a plasma cutter and 2 router cnc machine ..
alex_joni is now known as alex_joni_away
alex_joni_away is now known as alex_joni
alex_joni: That's pretty funny, but I dont know why it remind you of me.
seems like smthg you would do :D
alex_joni because of how blunt I am?
am I wrong?
Jymmm: only sometimes
you know I'm only pulling your leg
alex_joni I just call em as I see em.... no bullshitting
anyways. thought it's funny ;)
No, I am VERY straight forward about things.
ppl can't handle the cold hard truth.
most at least
that means about 60000000 people can handle it
even fewer can handle cold hard math (6 000 000)
* cradek sure hopes he got that right
have a good weekend everyone
[22:43:00] <Jymmm> http://www.riemurasia.net/jylppy/displayimage.php?album=11&pos=75
have a nice weekend
btw, tired as I am now, I did use a calculator to come up with that shitty result :D
[22:47:55] <alex_joni> http://www.riemurasia.net/jylppy/displayimage.php?album=11&pos=77
G night all
* jack^^ changed idea ..
alex_joni: what youre doing ?
going to sleep
didn't decide yet ;D
i'm building this damn stripboard :\
too much thinking.. its not good ..
more action :P
anna_emc seen some photos
what the brand of your machine ?
on the web
not sure I follow
how you get the photos ?
what you used
give me an url
i'm in lab
you have an album online
the pictures are very nice
she's interested in your camera
brand and model
HP photosmart 850
HP .. sound nice
she have a tradictional camera
very good, but broken
she's looking for a digital camera
she have seen the photos in rome
are very nice