hey all. help on a 5i20 with hostmod2, running 2.5 pre.
i did an apt-get to get all the latest 5i20 firmware files.
calling the files explicitly in the .ini file with CONFIG="firmware=/home/noel/SVST8_4.bit num_pwmgens=3 ...etc'
i keep getting error: firmware /home/noel/....... not found
not matter where i put the files, they are 'not found' ??????? any clues?\
clue #1 http://www.linuxcnc.org/docview/html//drivers_hostmot2.html#r1_3
[00:11:22] <JT-Hardinge> http://www.linuxcnc.org/docview/html//drivers_hostmot2.html#r1_9
jmkasunich: I thought you didn't use paypal...
so far that wifi is not supported with the emc2 distro
elmo40: these things work great: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190375330614
elmo40: they do the wireless and give you a real ethernet port. wired ethernet is supported by everything.
tlab, I posted a bad .config yesterday. don't use it.
I was so tired I was doing stupid things. Somehow overwrote my good .config
mozmck, you know where I can get that python-xml deb I need?
I upgrade to 9.1 and can't get the deb's installed that mozmck listed
clytle374, you make any progress?
I found out that smp isn't the problem . I'm starting on hardware now, burnt out on building kernels.
I'm gonna try these bleeding edge deb's and if they give me problems I'm going back to 8.04
JT-Hardinge: ok, thanks for the help. still no go. do i still need a symlink if i call the file and path explicitly in the loadrt ?
tlab: do you need 9.1 for some reason?
Roguish: I'm not sure if you can call the file with a path like that in the ini
Roguish, the symlink is needed do to the length of the path
much easier to use 8.04 till 10.04 comes out
yes. i understand the 30 character limit, which is why the explicit call.
I had to use 8.04.4 on my hardinge as the hardware was too new for 8.04.0 that is on the LiveCD
* JT-Hardinge has gotta go and check the chicken
burnt chicken == mad wife and MIL
tlab, I found it the other day, I'll have to look again though.
clytle374: my kernel is built for smp, but I've run it fine on single core as well.
I found mozmck
I found it
mozmck, for 8.04?
I just not sure which debs to install first
Roguish: are you running RIP or installed
do the symlink thing and you will be fine
clytle374: no, for 9.10. There is 8.04 smp kernel on experimental though...
I built a kernel without smp and had the same trouble, so I think it is 64-bit problem
we have Jog working. So far so good. Now onto running the app.
i updated to latest in the repo, too.
i will pastebin my setup in a moment.
oh, wifi didnt work at all, cradek. had to rig up a LONG cable
back to 8.04, to many issues I don't know how to solve with 9.1
there are experimental packages for 9.10 I think?
ya and I had a hard time installing them
jmkasunich: what would those grayhill relays be good for?
elmo40: switching 120v AC stuff with 5v logic, or sensing 120v AC stuff and converting it to logic level
my specs: http://pastebin.ca/1815182
cradek: so... lights, small motors, stuff like that?
tiny motors, i might add... but a good starting point :)
I wonder how 10.04 emc is coming along ;->
I hope it comes with SMP by default or in the repo's at least ;->
same here. would be nice if emc2.4 would be ready for it :)
or, dream a little, complete revamp to 3.0 ;)
what would you change for 3.0?
seems like i have a board issue. the Z axis is not moving the way it should. i tried adjusting the potentiometer to increase (amps? voltage?) to the motor but no dice.
got a multimeter?
Valen: what would i change? me personally? underneath i dont know, but going from 2.x to 3.x _should_ mean a complete re-write. visually a lot! It is editable, right?
Valen: the motor is different in the Z then the others.
my specs: http://pastebin.ca/1815182
35VDC compared to the 6VDC of the x&y
maybe that is the issue.
if you want to change how it looks then use one of the other front ends
axis is only one front end to emc
what else is there?
I don't recall off hand, people are making new ones all the time
hrmm, should i install 8.04 emc2? or wait until 10.04?
8.04 it works
anyone get google chrome working on 8.04 ?
jmkasunich: how come an ebay search for 'solid sate relay' in section 'electronics' doesnt show your stuff? i bet others miss your posting if they cant search it
btw: its a good deal, tho units of 6 12 24 suit the mountingboards better
Ihey all, I forgot the exact message :( but today I got 'joint 0 .......' and then teh machine stopped, this was during jogging, what does that mean? First time I have seen it
is it a servo machine?
Valen: it's a stepper machine
dunno about that then
also got something with joint 1, happened 3 or 4 times, then the whole day nothing
it's a servo-stepper machine
yeah ferror then
<I dom't understand why still... I have seen that ever..
crap... my english is bad today
because the measured position of the machine is different from the commanded position by more than minferror in your config file
if its a stepper machine, either your screws are out or your loosing steps
Valen: I don't have any feedback on my machine
Jymmm said it was servo + stepper?
I did notice that sometimes I see position values of 0.001
Valen: Jymmm doesn't know my machine...
it's just stepper...
ahh then i dunno
you do have feedback. the feedback comes from the step generator. if it cannot generate the right steps fast enough due to the various constraints it works under, the machine stops instead of cutting wrongly.
may be I should raise the minferror value in my config
it's a servo-stepper-analog-digital-animal-vegetable-mineral machine
it's a wood 3 axis machine, so I don't care about 0.001 :D
mm that is...
should change the settings so it doesn't get into that situation otherwise itll loose steps
yeaaa I will do that
teh machine doesn't loose steps, I only have it loosing steps when I jog very fast, ususally I jog way below that <25% of max speed
Jymmm: mmm, animal-mineral machines...
your machines max speed should be set that you don't loose steps under any circumstance
exciting day, our cow just had a baby.
i would rather ask here then the forums... only cuz forums are not as active. What do you guys use for lubricating the axis threads?
same way oil you use on the ways
Valen: I did that already.... I run the machine much slower then it's capable off
wow, my steppers are tiny tiny things!
roughly 0.42 foot pounds >_<
who here uses something around the 2ft/lb range?
elmo40: doesn't sounds to big, how are you going to use them if I may ask?
is that nema 17?
i dont know what nema they are.
[03:55:39] <elmo40> http://www.piclist.org/techref/ecomprice.asp?p=416042
NI has nema 17 even....
so - the hydraulic servos where rated at 1200rpm - but they ran them at 2400rpm
on the kearney and trecker
werent those hi pithc screws like 6tpi? making it like 400ipm?
(must be me, the keys really do work )
3tpi - but reduced
ENC with ubuntu 9.10? netbook remix?
Enhanced Machine Controller, not electronic music c-somethingorother
god when i look up edm its always edmonton ca or electronic dance music. so instead of machining its hockey scores or rap
ee dotn understand the question
try adding either "wire" or "sinker" to the search
'netbok remix' isnt a question
ubuntu 9.10 netbook remix
its an ubuntu 9.10 install for netbooks/laptops?
i'm looking for something to communicate with various machines, through both linux on desktops and linux on netbooks
not yet, emc uses stable releases, LTS releases only
EMC needs a kernel with realtime patches
thats what i saw on the site...
just making sure
we don't build such kernels for every ubuntu release - that would be a ton of work and a maintainence nightmare
like hardy8.04, next LTS release is... maybe march
i'm trying to communite with a netbook/laptop usb to serial
looking around for my options with linux
you're not communicating with us
you want to communicate... well talking to various machine tools is not what emc is about. you need to look into telecom programs. emc >is< a control.
I have no idea what you are actually trying to do. Do you want the netbook to be the machine control computer? or do you just want to network the natbook with some other PC that is the machine controller?
i just want to be able to transfer programs from a netbook, desktop, laptop... to and from machines
when you say "machines", you mean machine controls, like Fanuc or whatever?
i bought a pair of usb to serial cables, but cant get them to talk
i've got mazaks and excell's
then you are in the wrong place
EMC is a controller itself, it replaces fanucs, etc
got that part..
you're probably familiar with what I want to do though?
I've never run a machine with any other control besides EMC
thats often just ascii serial work, but machine tools often have unique protocols. besides the characters, there's headers, trailers, sequence conventions, byte counts per line...
you need the comm docs on the control end and see what you can do from linux
best to just try, send simple programs, if success, dig deeper
we have a box, "blue box" it's a 3.5" hard floppy drive... to store programs on 3.5" disks.. then we "call" the program from the drive on the machine, or send the program from the machine back to the box
im just trying to do DNC. I want to replace that box/3.5" drive with netbooks ...
hah loads of 'blue boxes' were built. yes, you want to eliminate the box & use a file server (sort of) ?
good idea, but i know of no off hte shelf solutions for you
i built spoon feeders to replace tape readers back in the 80s
not linux, but similar, on dos
we use the box with our mazaks and excel's
its really a pain in the ass, and the one we have is getting old.
see them on ebay every so often for like $1500.
i'd try minicom and gtkterm
just a generic terminal program?
next time you have to fix one, retrofit the machine with EMC instead - you'll never look back.
i tried in windws 7 with a few applications with no luck
i couldnt set the right comport
hell windows doesnt even want users to use par or serial port anymore
i took win7 off two netbooks and put ubuntu on them
heh i built a 256 port sponn feeder for wedms a couple years ago, it was atrick to keep the damn w$ box from dropping the line. had to set the timeouts to infinity.
got freebsd and debian as well.. any platform i can easily communicate this way with would be fine
any OS can push stuff over a serial port
well, the retorfit is a good idea, and the trying of the terminal is simple.
what to push is the problem
im not sure how well the usb to 25p serial works
w$ will drop the trem if the comm link is inactibe for a period, esp problematic in slow machinining (wedm) and long distances ( woodmills)
i dont know anything about EMC, just found linuxcnc.org.... 90% of our machines are fanuc.
try the term, try the upgrade to emc control
i'll give it a go monday..
the upgrade puts you into control, nomore slave to japan tech/rules/hiddenfeaturesforlotsamoney
and no more flogging along 20 year old computers
if an operator knows fanuc controls, how easily is it for them to adapt?
yep, the code is not very different, he'll be able to read right away. but there's extras, like a special macro languge. also plc ladder and more
ee: a lot of that depends on what panel etc you make for the operator
the macros you have may not translate right away, but can be moved over , variables and indirection, most everythign i knew from system 6's and 8's ( i went heidenhain after that )
what does retrofitting entail?
oh, i misinterpreted 'controls', yes the operator panel is kinda up to your imagination
our machines are g code and mazatrol
retrofit... there's a bit to be done... the operator panel and computer get replaced. the feedback MAY need replacement, MAY be able to stay. the motors and amps , if standard industry interface can stay. in between computer and hardware are some pretty low cost pci boards. ( many variations on this ). you end up with a gocode machine with an emc-zatrol
you should look at some mazak retorfits already done, cruise the website & wiki
i'll check um out
mills lathes lasers, plasma cutters, all done and used in businesses already
we've got like qt35's, st40's, 50s.... AJV...
i'd have to look those up. i'm an edm head
are you a double-e?
then you have an advantage. it usually doesnt get really technical here, but sometimes the discussions require some background in electronics or physics.
not often, but the inner workings of emc ( all oopen source) require some.
most people inhere are users, some tinkerers and some are downright brilliant
im not very familiar with the cnc community online
are there other channels/networks on IRC for CNC related stuff?
ahh well. g'nite.
back to his comm idea, isnt there an emc server? whats it for?
[06:01:58] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/yaxis/adapt1.JPG
[06:02:04] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/yaxis/adapt2.JPG
[06:02:07] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/yaxis/adapt.JPG
needs to be cut to length...
adapt2.JPG doesn't exist..
what is it?
it is how the y axis servo is getting coupled into the k&t
you're sure having to build a lot for that
yes. I think it will be worth it.
there was just not an easy way to convert from the hydraulic servos to electric
lots of fiddly bits. ;)
it'll sure be nice when it's done
seems like such a good machine, and it will be much more useful.
how do you use coolant with it? is it possible?
skunkworks: Yeah, then you can have it make me a cup of coffee
yes - I think originally - they just let the coolant go all over.. ;) we have some shields made up.
I guess it's always *possible* to use coolant - using it more than once is the problem!
the concrete is supposed to be the catchpan - there is actually a sump pump in the corner - but we have never used it that way.
we always had a little bucket that the table tray drained into with a small sump pump.
assuming im not gonna bother spending $$$$ for a proper servo controller, and havent bought servos or steppers yet, are the new gecko step/dir based servo controllers any advantage over thier stepper controllers?
(planing to CNC an industral hobbies mill)
for inexpensive medium power servos, you might want to check out the pico systems torque mode amps
low $ doesn't necessarily mean you must have the disadvantages of a step/dir open loop system
yea? whats pico systems got going for them?
iv allways thought this whole dir/step interface from a haxed lpt port was retarded
but never really saw any good alternatives
step/dir is used because some legacy software can only do that
besides like the odd board that basicly took usb and turned it into some crappy step/dir interface like the lpt port with maybe some better timing.
but with emc you have better alternatives
the pico amps are $150
what size of mill is this? it has no motors and amps now?
[06:27:54] <BlackMoon> https://www.machinetoolswarehouse.com/xcart/product.php?productid=16133&cat=252&bestseller=Y
this size mill
No motors or amps
havent bought anything, have no software..
some manual machining experiance..
ok, between benchtop and knee mill size
enough to know my speeds and feeds and such
does it have ballscrews or are you going to fit them?
No ballscrews, Maybe fit them in later.
I believe it does have split acme nuts on the X and Y
hey CAD ~= USD again
Intrestingly the IH mill this guy offers is cheaper then IH's :0
seems like you could run this machine with nema34 size steppers or servos
steppers+geckos are going to be cheaper, servos/encoders + pico or mesa hardware would be better
cradek: how many oz-in would you be thinking?
I mean I guess I should'nt cheap out, but I know theres limited returns after a point..
belt reduction or direct drive?
well direct drive is like, 0.0005" per step right?
stepper motors are basically 200 steps/rev
so it depends what your screws are
anyone have a preference on the manufacturer of their steppers? Or is it just the most inexpensive ones you can find ;)
well except my Z, thats 6 TPI with a weird ass bevel gear in the way to turn it back to 0.1" per rev of the handle
BlackMoon: mine are only 80 oz/in.
elmo40: on what size mill?
just manual milling iv managed to take some beefy cuts. especialy when I bust out the carbide corn cob of doom.
lists no units of measure, only 'most powerful' and 'very powerful'
[06:37:37] <elmo40> http://img1.classistatic.com/cps/kj/100213/834r1/2855l04_20.jpeg
yea, and only like $3000 more then what its worth.
BlackMoon: maybe you could get one of those pull-scales and measure the torque needed for your heavy cuts. then get steppers rated 3x that or so?
pull scales? mmm
1' arm and all that shit
yeah there you go
and like the thing you weight fruit on at the grocery
i'll probley want a bigger stepper more for the rapids and shit
man I get sick and tired of going back for another pass manualy when its a 12"+ long workpeice
I don't even have power feed man
yeah ideally you'd get ballscrews so you could cut both ways
the only saving grace is its got a handle on both sides of the table so when one hand gets tired doing rapids the other can take ovre :P
i tell ya. working on this tiny rig then going back to work is a WORLD of a difference :P
i dont even know the speed of it, but at work the rapid is over 1200 IPM
12Z Manual Mill Price: $2,399.00
Machine tool warehouse: $2,099.00cnd :)
1200ipm? thats gotta be a typo
1200IPM is like a gantry mill crossing the room at 30mph
they used to scare the shit out of me at 100% rapid!
now i am used to it... wanting to make it faster, actually
we do rough cuts at 18k PRM and ~550 IPM !
in what material?
yea high speed Al machining is nifty.
unless your in the path of the chips
you don't notice it cause they don't turn black like steel, but they are HOT
not much different for steels! maybe 25% less in speed and feed, along with a shallower cut.
really? must be running the high end inserts.
horizontal, no chip path. all enclosed ;)
some of those inserts are insane.
inserts? no way. carbides.
inserts for face mills and some 2" cutters, but all other tools are stricly carbides.
Iscar all the way!
solid carbide you mean
someone sent me some awsome carbide bars a little while back
like 1~2" by 1/4~1/2"
too bad I still havent gotten around to making anything to grind them into lathe tools.
or flycutter bits
all C1 microcarbide
probley part of a large bucket of carbide bits that fell off a truck somewhere, hah.
or some industral auction anyway
check out the specs! http://www.techspex.com/techspex/milling_centers/model?milling_id=4865
nothing like 50Hp at the spindle :)
lol at asking me to sign up
eh work is work, I perfer the basement
one day I wanna start producing prototypes
Not my own per say. More other peoples. theres allways another guy who thinks hes got the best invention since sliced bread.
and happens to have a bit too much money for his own good.
you couldnt see the link>
it asked me to register/sign up
so what was that mesa thing you mentioned?
try this: http://qurl.org/uw0
see the specs?
cutting at over 2000 IPM
no overarm support?
i think it is only 1900, though
what is overarm?
lol at 2600ipm with 30x30x30" travel
[06:53:35] <BlackMoon> http://www.millerindsupply.com/russ%20photos/horizontal%20hand%20mill.JPG
for supporting the other side of a big arbor cutter setup
[06:54:01] <BlackMoon> http://www.sperdvac.org/Horizontal%20Mill/mill_gang_milling.jpg
thats like, uber horizontal machining
lets profile the part in one pass machining :)
I believe its actualy that rigid too due to the fact the cutter is supported at both ends and has a GIANT shank diamiter
like 1"+ of solid steel supported at both ends
gang milling... bah, what for?
different kind of machine, that is
yea, you probley have ATC?
that is horizontal in a sense that the table is parallel to the ground
didnt you see the pics?
4-axis horizontal machine
yea I guess like half that thing is the tool changer
* BlackMoon shrugs
only seen a few in person
sold for stupidly low at some auction like 10~20k
like you could rent the tool changer out as a small apartment.
nobody wants machines that friggen big
anything above a few tons you can buy for scrap prices
heres an ih mill to servo conversion http://www.thewarfields.com/cnccookbook/CCMillCNCServos.html
and no, half is not the tool changer, half is the Z/Y-axis Casting ;)
'It's worth noting that the standard IH CNC kit comes with 410 oz in on the X/Y axes and 648 on the Z--that mill head is heavy! ' weird I thought the IH CNC came with servos heh.
BlackMoon: the motors on mine are this one: http://www.piclist.org/techref/ecomprice.asp?p=416042
on what size mill do you have?
i am now looking for larger motors, the a larger board, then design the machine around those specs.
heh built in encoder? do you bother using the encoder for fault detection?
[07:02:51] <elmo40> http://img1.classistatic.com/cps/kj/100213/834r1/2855l04_20.jpeg
you asked already
i linked already
ah, missed it
no memory today? ;)
one of those pipe mills eh.
cheap and simple
just don't smoke from it.
full of concrete!
iv seen.. much worse
so have i
now then, next rig... unipolar or bipolar?
... why would that really matter?
control boards may be one or the other
amperage is different
torque is different
max speed is different
it is a tradeoff.
i think i will go for max speed.
and to get torque, just buy a larger unit :P
I can't really see running unipolar unless your controller can't do bipolar
I can't see any advantage to only using half the coil at a time *shrugs*
you can allways hook a unipolar motor to a bipolar driver too.
use a proper chopper driver to control the current reguardless of inductance for best torque over RPM range..
so whats this mesa control systems stuff?
like whats that gonna cost for 3 axis?
brand new Nema34 434 oz/in motors are around $150.
i dont know mesa controls.
and how about servos?
are there any down sides to servos?
i dont know if building my own mini-hozirontal will even be worth the expense.
but fun ;)
[07:18:03] <BlackMoon> http://pico-systems.com/oscrc4/catalog/index.php?cPath=8
its like, wtf one of these do I need.
is that even the right pico servo drivers?
I mean they got some analog servo control and then pwm servo systems. *shrugs*
I looked at one of the servos on that site and seemed to lots of missing info.
Could someone point me to something that explains brushless DC servos. I understand steppers, DC and AC servos, but what is a brushless DC servo?
yea its like.. how many of what do I need to do.. what.
Kinda hard to get your head around it all at first.
Dr. W.G. Watson is 100 years old, making him the oldest known actively practicing physician in the U.S. http://www.cnn.com/video/#/video/health/2010/02/25/natpkg.100.year.old.doctor.cnn?hpt=Sbin
[07:57:57] <elmo40> http://openservo.com/
uh, thats for position servos
like you see on robots and RC aircraft
BlackMoon, used pico-systems cards?
clytle374: Brushless DC's are actually easy to explain. You know how a brush DC servo motor works - Magnets on the outside, a revolving armature with a commutator ....
Now turn the motor inside out. Put the magnets on the rotor, put the coils on the outside and switch the coils on and off to make the rotor spin - basically commutate the coils based on the rotor position.
That is a a DC Brushless Servo motor. That is it. Pretty easy to explain isn't it! :-)
now explain what the difference between brushless dc and ac servos...
(still fuzzy on that - seems to be pretty much the same - except how they are driven)
trapizoidal vs sinusoidal.
Sinusoidal lets the magnetic vector be positioned exactly where it needs to be
by controlling the current in each of the winding phases
rather than simply switching a phase on or off
resulting in much less torque ripple
is brushless dc with low pole count steppy? is ac with low bit count dac steppy?
does ac slip like an induction motor
brushless are synchronus motors - no slip
Brushless DC with sine drive is not steppy
I have some brushless dc and you can audibly hear the comutation with the amc drives I have... I cannot feel it though. JonE says in a cnc application - unless you know what you are looking for - it is very hard to see the commutaion steps after the system is tuned well.
Think of brushless as a 3 phase 4 pole (usually) step motor
on the control side, when you go so slow as to have a few LDU per minute (least detectable units of feedback) the steppy-ness is due to the controller. i need extreme low speed and couldnt figger this out for long time thinking my drives were cogging. my solution was to up the feedback rez per motor rev and rez per unit travel rev, usually this meant giving up top speed.
Some of the latest encoders have ~100K to more than a million of counts per rev
(some using the Avago analog output encoder modules and interpolating)
yes, last app i used 1/4 um (yaskawa) and top speed was 4m/min, best so far
slow by milling standards but ok for me
A linear motor system with the Resolute encoder would be impressive
i think the yaksawa is actualy a resolver inside, as the division allowed is pretty high ( like just adc limited )
Well a resolver or analog output encoder are really the same thing (just one is AC exited, the other DC)
woohoo "Resolute is capable of 27-bit resolution at 36,000 revolutions per minute."
Dont think it gets any better
? the heidenhain 11uA encoders are sinus out
i just didnt understand the 'one is ac excited ( must be resolver) 'the other dc ( got lost there)
anyway, either are out of my pocketbook range ;)
i thought about having axis Z1 and Z2, both same physical joint, but 2 drives, one for fine speed, one of positioning. just to get good process but not move like a slug to next position.
Both sin/cos encoders (like the Heidenhain or Avago modules) and resolvers output sine and cosine quadrature
resolvers are AC exited (the rotor drive) so the outputs are AC voltages with sin/cos amplitudes,
anyone use touchscreen (Touchy)? I was thinking of picking this up http://qurl.org/vw0
I guess some systems use piezoelectric for fine motion
pcw_home, I removed smp and still can't load the firmware. Building 32 bit now. Was up all night with the cow in labor.
did it go OK with the cow?
i thought it had calved already, hope all is well
ooohhh, i like this one MUCH better! http://qurl.org/ww0
anyone use Touchy?
People have already used HostMot2 with SMP, but 64 bit is probably a first
She has been acting like she's close for a week. She calved last night. We had to pull it, was a little sketchy for a bit.
[16:36:22] <clytle374> http://imgur.com/SPFCW.jpg
clytle374: congrats! it's a relief when they're done isn't it.
cradek: i cant find any screenshots. what does it look like?
cradek, she laid down and gave up. Calf was too big.
smp is way more important anyway. I saved the install if I can help with debugging it.
clytle374: eek, glad you were there to help
elmo40: run it and see
morning all. is the home website down? or just really pokey this morning?
cradek, She's a family milk cow, so basically a loved pet.
Roguish: not responding for me either
Boy or girl?
elmo40: here is a post skunkworks made: http://www.cnczone.com/forums/showthread.php?p=681712
seems like the internet is going down! Many sites i have tried and they are not there. ex: moc.daper.net
elmo40: a few things are different by now, but you can still see how it works
cradek: what is A wheel/mpg
jogwheel - an encoder you turn by hand, with a knob marked 0-100
[#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/"
found one. http://www.griffintechnology.com/products/powermate
no, that's the wrong thing
[#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/"
speaking of calving... my cat is having her kittens on the kitchen floor. :)
cradek: how about this home made deely? http://www.instructables.com/id/Computer_scroll_wheel_bearings_version/
can make it scroll / jog on the axis you want
or you can find one on any old mill or lathe made in the last 20-30 years
didnt know what mpg meant, manual pulse generator.
there are oodles on ebay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140357463135
those things can be expensive
i wonder why some are $60 and others are $350
pcw_home: turned the commutators and cleaned out the carbon - no more continuity to the case. :) http://www.electronicsam.com/images/KandT/conversion/servo/commutator.JPG
it was bad...
[18:26:32] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/servo/brushholder.JPG
will emc2 directly control thru parport/optocoupler the ssr's on a hardinge CHNC?
yeh a slight bevel between the flats is good, use a riffler file before reassembly. less wear on brushes of you break the corners a hair
we also used a bit of hacksaw to clear the plastic between the commutators.
hands are still sore - there are a ton of slots ;)
i know tro use the hacksaw to clear the shorts netween commutators but am puzzled with clear the plastic, you want them insulated.. yeh its tedious, use to do starter motors
you want the plastic just a bit below the surface of the copper
from what I have read - you don't want the pastic (somtimes it is mica) just lower than the commutators
* you want it just lower
jmkasunich: how is it going?
if at level, the copper & graphite dust bridges eady
skunkworks: Thats an amazing amount of crud
pcw_home: it was the worst of the 3
I don't think they ever did any maintenece on that one. Must have been in a bad place. these are the brushes that came out of it. (other than the center one..) http://www.electronicsam.com/images/KandT/conversion/servo/brushes.JPG
they where all stuck in goo also. (not making conntact with the commutator)
Glued together with coolant? Ive seen a lot of carbon dust but nothing like that
must have been...
With new brushes and turned + undercut commutator should run like new...
+ keeping coolant out
we hope. :)
i bet you can break the corners on the brushes too, never tried that
that is what we do..
help then seat
I am excited - maybe in a few more weeks - it will start moving.
we have a lot of i/o to figure out.
Is there a tool changer?
Electric motor driven?
[19:15:18] <skunkworks> http://www.electronicsam.com/images/KandT/conversion/toolchangerspindle.JPG
no - some of the hydraulics we need to keep.
I wonder if you have the only one of these (almost) running
I have never run across any - I don't know how many where made
hell of a machine. the tools where mechanically barcoded ;)
how were they read?
looks like 40+ tools
lots of contacts pressing on the rings?
like the mazak, i took the cover off and saw all the holes and the proxes and went wow, its a 40" diameter encoder
a knife switch setup. iirc - there are 12 rings
cool knfie swx, frankencoder
Interesting did it find tools entirely by their code?
yes - you would program a T-whatever before it was needed - the tool change would spin until that tool was read and then position it above the spindle
Wow mechanical CAM
(Content Addressable Memory)
nice, 6dof to cart
is that a dir robot or commercial built?
from his other vids i spose its homebrew
but I am making progress on other projects..
so LAY OFF! ;_
hahaha. (Talking about building things for the house) my friend: 'I believe design is an evolutionary process' me: '... Well, I believe in intelligent design'
Beee is now known as beee
[22:28:17] <MattyMatt> http://img6.imageshack.us/img6/8894/p1010050vb.jpg
just waiting for the oldham coupling for the X motor, and it's ready to go
will a 4.77Mhz PC portable be enough for emc2? :) (j/k)
it wouldn't surprise me if that's what the original emc was run on tho
the original EMC was written in the 1990's (though the original project for the "Next Generation" G-code standard started much earlier)
It might have worked on a '386 of some sort, but I don't know. It was written for VXWorks, running on a VMEBus system
486 was still quite posh in 1995, I remember
plus a Delta Tau motion controller with a DSP, which did the actual motion control (one of the reasons why the motion controller, IO controller, and task cotnroller are separate)
ah OK, I thought emc started much earlier than that3
I like the floors in that room.
I wirewooled and oiled the floor 20 years ago. needs redoing
the boards are original from 1879
they've all shrunk, so I had to pad the cracks, or lose screws forever
i thought my machine was old, it was only built in 1978
the floor, not the machine :)
I am very inspired by late 19C engineering style tho.
any castings for the mk2 will have leafy scrollwork in the corners
lol oh i guess i should read more thuroughly, i saw boards, and i thought boards for a control
I have put several minutes of serious thought into a babbage style controller
that was for the 100% self-replicating reprap tho
there's an $80k prize for one, but the specs are too ambitious. a machine that would win the prize would be worth a Nobel and a chair on Honda's board
I wonder if the workers in the car factory are worried about Asimo :)
16.5 x 14.5 x 7.5 in, is how my machine turned out. I should shorten the Z to match, for stiffness I think
That sounds like very usable travel
i'm swapping the mobo in my mill right now
hoping it fixes some of my issues
and the computer slows down alot
the jogging is pretty inconsistant
and z wasnt retracting when i was running long programs
oh - yeck
what was the motherboard?
w00t! Canada 3, USA 2.
ladies volleyball? that's the only olympic sport that interests me
heh - was probably an exciting game if that is what you are into. overtime and all
I enjoy the ladies world cup more the real one these days. they play a style of game much closer to how we played in school. all teamwork and lots of headers. pro soccer players are all fitness machines now
anyone use these products? http://www.cnc4pc.com/Store/osc/
you never see the goalie leaning against the post having a ciggie
ok, now this is what i am looking for. http://qurl.org/zw0
looks good, but it's really just a knob-in-a-box
I'd bet it's no easier to set up in emc2 than a home made one
using really nice parts, you could make it for 1/2 that price
now if it had a DRO, it'd be good value
that's my inexpert opinion :)
hmm this mobo i got doesnt boot
fans come on, it's got power
no display, and no beeps
took out all the ram 1 stick at a time, made no difference
is the beeper onboard?
i dunno, i thought they all were
i guessi i can try and find a speaker
old ones have a fly lead
hmm well i dont really have any speakers
i think the mobo is bad
i got the pc for free
can you see an onboard beeper?
it'd be a shame to reject it because the bios is set wrong
no i cant
here's a thought. is a 10GB hdd big enough for emc2? if it is I can start installing tomorrow. I've got plenty of 10-20GB drives
MattyMatt: no beeper it looks like.
I really don't want to buy any more pata drives
use a 20GB if you have it
i cleared cmos
4gb is lots for emc... it even fits on 2gb but may need some trimming
[23:40:24] <skunkworks> http://cnczone.com/forums/showthread.php?t=100421
* Jymmm blocks skunkworks access to cnczone
I would like to implement external motion control sometime
as in, make my own controller box and write the code for it
I started thinking along those lines, with one cpu per motor, but the axes need to be all run together I think, especially when you've got feedback
MattyMatt: ok, lets see you make one knob-in-a-box like that for less then $180.
the quadrature encoders are around $15
the e-stop switch maybe $20. the switches $5 each including knobs. a really nice shiny knob perhaps another $15
whats this mesa boards stuff cost for a 3 axis rig?
with a cool wall clip
put a Nd magnet in it
that things not a bad price for what it is, with the nice plastic case and clip
yeah it's made for you
time is money
BlackMoon steppers or servos
if you value your time at under $20/hr and enjoy making it then sure make your own..
if I was gonna do steppers id probley go gecko
5i20 and 7i33 for servos and up to two 7i37's for I/O
I run my plasma from a 5i20 and gecko 203v drives
yea I was just wondering like a +-$100 estimate of what its gonna cost
[23:55:01] <jt-plasma> http://mesanet.com/
like, without ballscrews, whats a decent mesa servo system (+ servo costs) gonna run me?
well my crappy windows desktop is putting down about 9400 for the servo thread latency and 15500 for the base thread.
is it worth trying to get much better than that?
that's just by unplugging the HDD from my mill's pc and hooking it up to this pc, not configuring or downloading any drivers
I just converted my Hardinge Lathe from Siemens controls to Mesa for about $750 of hardware and $1M in computer agony
jt, is it working well?
counting a new computer mobo
I have a few things left to do like make it spin and move LOL
you mention agony, how much agony?
all computer issues
ask Dan LOL
did anyone see my question about my pc? not sure if it showed up since i wasnt identified
jt-plasma: like your computers fault or mesas fault or?
all of the above
my IDE cost me $4M to write, according to SLOCcount
I just got back from drinking and shooting M1's and 44 magnums so I might have missed it
these 'PCI Anything I/O -- 96 I/O bits - 1M gate Spartan 3 FPGA' does the thing come with a FPGA program for running servos or something?
yea all the above
MattyMatt: cheap at half the price.
you just need the 5i20 for EMC
well ok thats cheaper anyway