how many volts are your motors?
no idea about volt, 2A/phase 1,1 ohm
unipolar 6 wired
i'm using 4 wire
Huh, AXIS started on my PentiumII :)
PS is about 22 Volt
ok, thats 10 times motor voltage
looking at AXIS GUI first time now :)
Jacky^: have you tried using only half the winding?
less torque, but more speed
with period 0.00005
How half the winding?
robin_sz: in 2 of 3 controllers half work fine
in the 3d i think something is missing..
so ... you have 3 wires per coil .. top, centre-tap, bottom
<Jacky^> unipolar 6 wired
you said 6
Hmm, File/Open is dimmed
2 coils ... 3 wires each
yes, but i'm usint as bipolar
yeah, probably right
but O opens Open file dialog
i suppose so ..
you have 2 coils, 3 wires ...
coil 1 has connections A-B-C
you are using A-C right now
the current flows through all the coil
if you use connections A-B and leave C unconnected
current flows through half the coil
half the inductance ..
half the voltage drop
less torque at low speeds
but more torque at high speeds
that what i need :s
MIGHT work out faster for you .. try it and see
depending on motor type, torque curves, the load on it etc
it is not guaranteed .. but it can help sometimes
another issue i'm having is about unit
using mm as unit and low input scale, running very slow
seem a bug
changing unit it work fine
I think there is problem using mm as unit in emc1
nfact, it is
I had to use inches and then select mm as unit in program
remember, when you sleect mm as unit ...
all that ..
they are in mm too
Hmm, display is distorted, doesn't show OpenGL properly
the bug is usually only a problem when using very low number of steps per mm
like 20 or less
or 50 or less
xet7: have you run gears to check your open gl install?
what was the command name?
mmm, gears? I forgot .. wait ..
gxlgears found it
81 frames in 5.0 seconds = 16.200 FPS
bit slow, but not disastorous
alex_joni is the man to speak to about axis if I remember right
or was it cradek?
sigh .. brain
it's me, I admit
its him ..!
he admits it
but don't tell anyone
actually when it's not working right, I say jepler is the expert
if we're taking credit for a job well done, though, that's where my skills shine through
so which is this?
* robin_sz points at xet7
you know, jepler's the real expert
Why are menus dimmed, File/Open/Reload, and all of Program menu?
I can't select from it
are you in estop?
but keyboard shortcuts work
someone else reported this, but I forget who
wasnt this something alex was trying to fix?
open is not greyed out in estop for me
xet7: which emc did you end up using?
problem #2: when i run on the console, the file dialog menu entries
are greyed out. the keyboard shortcut 'o' works, however, to open
a file. any ideas?
Paul Fox, 3 Aug 2005
he is using emc2
emc1, Paul's newest deb updates from his mirror, debs copied from laptop because Paul's mirror didn't work anymore, updates to emc1
ugh, I have no way of running that code then
i wonder if he has calmed down yet?
% TZ=UTC date
Mon Aug 22 23:27:26 UTC 2005
I'm pretty calm at that time of night usually
I said someting about "you could try goats blood and chicken bones" and he spat his dummy and stomped off ...
* cradek shrugs
I thought goats blood and voodoo was the accepted method of getting EMC to work in extremis ...
never failed for me
sometimes it needs more than one goat though
* cradek shrugs
I updated to the latest axis and I do not have the problem with greyed out menus
actually, I must get some more goats in to sacrifice ... it seems openVPN needs the same treatment
let me see if I can manage to buildemc2
running emc2/head and axis/head I have working menus.
coo .. that was a quick and easy build
some things are going right then
robin_sz: a simple cvs up - I went through all the necessary pain earlier.
OK, my wife demands I go to bed
I hope you're in a different timezone then
03cradek * 10emc2/src/emc/task/emctaskmain.cc: clean up printf droppings
looks like the gl part is working right!
"active g-codes" are very wrong too
it doesn't start to run program when I press r
turn up the feed override
you have it set to 0
_AchiestDragon is now known as AchiestDragon
these are paul's binary packages - you did not compile anything, right?
well, it's very broken
ok, I'll compile
it is also confused about whether a file is loaded (see how it says "No file" in the titlebar)
I think the stat module is not working.
onboard clocking via Ic3 can be disabled by driving input GATE to low..
and how i can do it ?
Jacky^: I don't understand
i'm too :(((
how to drive an inpute gate to low ?
hook it to ground
what kind of input?
maybe IC3 has a pin called GATE?
if so, it means to wire that pin to ground
cradek: i build this circuit: http://www.yty.net/cnc/Steppermotordriver.pdf
it is driving me crazy :\
let me look
can't understand how it work
I don't want to use onboard clock IC, and i would switch half-full mode ..
you do not want to use IC3
no, i no need it
IC3 generates STEP pulses in an application where the motor is supposed to always turn
yeah, without connect any PC or software
so ignore IC3
but, how to switch half/full ?
the H/F input
it is 5V in normal state
it looks like that's half step mode
the - above the signal indicates that you take that input to ground for that so for half its unconnected and for full its to ground
but how can i change it ?
wire the H/F input to ground
whitout any resistor between ?
I think the L297 has several full step modes, and you should read the L297 datasheet to make sure you know how to get the one you want
the strange thing is,
i've 2 other controller
i bought in kit
the work in reversed mode
the resistors r4 to r9 are pul up resistors so thay put that pin to a logic 1 if no other input
normal mode 0
maybe the motor is wired backwards
but i would like to know how these inputs can be switched
which inputs? H/F?
just place a jumper from H/F to ground (marked 0 on the schematic)
in my experience, half step mode works much better than any of the full step modes.
cradek: you mean JP1 ?
well I don't know what that does
aniway grounding HF input should work
see the input marked H/F on the edge of the board? solder a wire from there to ground (marked 0)
i'm going to try ..
JP1 controls how the chopper works
you should read the L297 datasheet
[01:05:06] <cradek> http://www.alltronics.com/download/1334.pdf
cradek: thanks a lot
i was tryng connecting +5V to HF input
that would have no effect because H/F is already pulled up to 5V through the resistor
the bar over the F means to get F you make the signal low (ground)
the bar means "active low"
thats ok now :)
now, switching i get 2 different speed
lowest should be half right ?
be aware that there are different full step modes
you get different modes depending on when you bring low H/F
see the datasheet for details
i want also check how the motors are wired
how was sayng robin_sz
so, finally, in the next days i will try the new router :)
some work on wood..
I halted all my jobs, because i was burning all bits
too slow feedrate
well if i have any problems with it its going to get bigger steppers , and a new controler is on the cards anyway
well, if you do buy modern steppers (which you should) yo ucant use them with that card
modern, low inductance steppers drop only 2 to 3 volts
you are in the UK?
me yes , like you
almost on the border
or nearer shrewsbury?
chirk , between wrexham and shrewsbury , you ?
you are where the biscuit factory is then?
always smells .. sweet up there
and kronospan the chipboard manufacturer
well, if yo uget bored and want to play with some real motors let me know ...
or if you want any steel laser cut, pressed, powder coated
* Jacky^ sluuurp :P
* Jacky^ arf arf.. bau !
like motor mount plates or anyting like that
* Jacky^ loves chocolate
I think its more industrial grade mas sproduced chocolate than high quality Italian hand made chocolate
McVities is it?>
OK, not bad then
I thought thta was in Birmingham
robin_sz: true, in some place
swizerland should be a nice place for chocolate
cadburies is just good standard consumer chocolate .. not a bad brand at all
not as bitter as some of the continental choc
mostly tastier than the chipboard factory next door
and smells better :)
to be honest, I thnk I would go off it if I had to smell it each day
I used to drive through there a lot when going to north wales for climbing at a weekend
it depends on the wind direction so dont get the smell every day , thankfully ,
kidderminster is near here, that a sugar beet plant .. now, that smelled
right, I must go and weld something ... sigh
weird... jog the axis about 12 inches, tell it to goto 0, and dead on. Can't even muck with it in respect to backlash.
Jymmm: what is ? a new machine ?
Jymmm... where those photo's?
Yuga what photos?
of your machine
Jacky^ the same machine
ok... so where the pic's?
i gave you the link a long time ago
and the link was?
in your cache!
dont keep my cache forever
[22:37:46] <Jymmm> http://www.k2cnc.com/Picture/KS-2525gallery/index.htm
It's no longer on theri main website as 'frame only'.
Yuga : http://www.k2cnc.com/Picture/KS-2525gallery/index.htm
Yuga: Basically, what I have is the 3925 in a 2525 size
thats one nice machine
thanks.... it's been a REAL headache and STILL not up to par yet.
I doubt I would do it again.
Jymmm... there stuff look's sooo nice. but i have read a couple of bad reviews
Yuga: I hear ya... their BIGGEST problem is lack of QA.
just stupid little mistakes and ***LOTS**** of them.
was thinking of buying one till i started reading th coments :)
descided to build my own...
Yuga Heh, my idea is to use this to build others =)
thats what i told my gf
it's kinda stupid if u think of it. u are building a machine that can be used to build its self :)
everyone's doin it
actually... these are much closer to my machine (less the tabletop)
[22:49:27] <Jymmm> http://www.k2cnc.com/DuportalPro343Access/Pictures/cat.asp?iCat=651&iChannel=3&nChannel=Pictures
mine has no energychain or limit switches from them.
and what u think the the linear rails they are using?
planning on doing mine that way
Yuga the roller skates?
Jymmm: nice machine
limit switches are a crap..
you can add it how you want
how much u pay for it Jymmm?
[22:54:52] <Yuga> http://www.k2cnc.com/DuportalPro343Access/Pictures/detail.asp?iData=43&iCat=651&iChannel=3&nChannel=Pictures
<--- what steppers they using? they look huge!
Yuga See, you're not listening to me... I said mine is like a 3925 but in a 2525 size.
I no longer have those skate bearing rails and acme scrrews, I have linear rails and thomson ball screws on XY axis
Z is still acme thread, but linear rails
well i am planning on using the bearings
will you share your plan ? :P
it's open source ?
will share my plan when it's finnished :)
currently it is still changing every day
but remember... it's HUGE!
* Jymmm will share his plans if you'll share your money.
2x3m cutting surface
Yuga: cool :)
but let me build it first and c if it blow's up :P
Yuga if not, I'll blow it up for ya!
u sound good at that
I'd go for my pyrotech license if it would be worthwhile.
well i am not planning on blowing it up.. i just think it's one of those things that are going to happen :P
Yuga: how much, estimated cost of machine youre building ?
let see if i can afford it :P
trying to keep it under 25ooo rand
but i have the pc... and all the software
and getting some of the frame donated :)
well we will c when it get's started
* Yuga isnt rushing it... got so much on my plate right now
3 mt ?
good luck !
big machine = big problem :\
lol... dont need luck
need a mirical :)
oh.. I hope, for you
i know, 1 mt machine (what i want to build) should be quite simple..
naa... dont think it will be that bad... my biggest worrie is aligning the bed
3 mt it's hard
dont c y it should be more difficult
pretty much the same thing with bigger rails
in a big machine, the issues are multiplies..
agg well i am off to bed
night all u wierd ppl
take cure of the plan
Jymmm: can i tell you a personal question ? (just curious)
you use emc for job or just for hobby ?
Trying to start a business
i'm too ..
at least, it would be the idea
i suppose it's difficult bussines there too ..
high cost of machines seem to be the hard limit
anywhere for that matter =)
Well, machines are just capital. It's sales and marketing that one needs to focus on.
Jymmm: i like this, for ex. : http://www.propellers.it/
but also great competence
in a specific sector..
yours is a job right ?
yeah.. i know
we was tallking about business with emc
my machine is just a hobby, although when I have the machine in order 90% of the stuff I do on it is work related
what are jobs more requested ?
wood, metal ?
actually the stuff I do is in-house prototyping for work..
I dont really care for customer work.. as that
cant really compete with the specs of the 40 000eur machines..
or well, cant/dont care about it..
if I wanted to make money I would have bought a used cnc machine..
so, you have another job too ..
what's your ideal machine if you really would make money ?
laser machine ?
actually, it's a cnc �athe
laser, not really
i know, youre working on lathe
oh, I would buy a used cnc lathe..
ebay seem offer some nice machine
calculate on shipping
they end up expensive that way :/
my cousin some year ago
but well, as cnc is a hobby for me I dont care for making money off it..
bought many used machines
in north italy
doing stuff that I think is fun is more important..
what are these stuff ? O-o
are you planning a new motor ? :D
car motor i mean..
right now I work 10 hours a day :)
nah, I like machining
but once it turns into a "have" to make parts.. it's not as fun
I think for hobby, 3-6 k euro can be ok
up this can't be an hobby ..
you've got it the wrong way
hobbies are what's allowed to cost.. :)
the reason I said I'd buy a machine for production work is because hobby machines isnt built for that kind of stuff.