theorb is now known as theorbtwo
Unused cnc milling machine, has to be a bargain at that price: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=270654491900#ht_500wt_1110
Cranbrook. I know that town
bloody students. all those toys to play with :)
heh. the student I knew there was the 16 year old daughter of a friend of mine
I didn't notice any machine shops at that school :)
I did notice that the school was built in 1536 or something, which I thought was very cool
And probably hadn't been repainted since.
and still had the original torture chamber for wayward pupils
it didn't seem to need paint when I visited, but that was a few years ago
* MattyMatt had a brief internment in a 'posh' school
Shouldn't you be running the country then?
no. I didn't attend the school (except for a field hockey or cricket game)
I was a scholarship boy. I wasn't actually a member of the ruling class
I rubbed shoulders with a the offspring of the rich and powerful. and I bit their ears. I was tight head prop
Ah, the Other Code
The day I got bored with rugby was probably also me quitting politics :)
far too many scrums for comfort in the 15 a side game
At least they have scrums. League scrums are a travesty
all those dudes in wheelchairs in the front row at twickenham. they were all props :)
Clearly the solution is helmets and enormous body armour.
Perhaps those American chaps can try it and tell us how it works out?
and you could have the team swap over for a breather between pushes
You could have several full teams, so that nobody ever plays for more than 5 minutes, and the game stops every minute. I am sure that would be a marvelous game to watch
it'd be even more entaining with weapons, for the viewer
My feeling is that I would far rather watch Union and fa rather play League.
Right chaps. Goodnight all.
hi honey I'm home!
anyone here know what CONFIG_PREEMPT_RCU does in the kernel?
or does anyone here know why it says no user servicable parts on PC power supplies?
HOLY MOTHER OF CANUCK
I am seriously going to cry like a baby
all my 36 yrs I struggled to solder much anything past thru hole
and turns out half the problem was shit irons, shit flux and shit wire
kynar wire is freaking awesome
pcncx, yeah to scare off the user
because it's a high voltage chopper
next time any of you have to jumper wire patch a circuit board etc
well this machine was howling last night and giving me such a headache
look into kynar wire
you mean cause of the fan?
you can open it and replace the fan
just be careful the caps can store a nasty wallop for hrs/days etc
so I took it all apart got the fan out peeled off the label and under it was a rubber plug
I usually just replace them
because they don't usually last even after oiling
popped that out and got sone drops of chainsaw bar oil in there
once the bearings are scored
man whisper quiet
I never seen one of these fans you could even get to the bearings on before
well that's probably a cheap sleeve bearing fan
trick is chainsaw bar oil awesome stuff
pcncx, getting rid of large collections of dust will also help it cool down properly so it doesn't need to speed up
ball bearing you can't do unless it's 1 ball 1 sleeve
fluid bearing are perm sealed
The_Ball this is one speed cools all
because they need to be to build up the pressure
* flyback is in absolute shock how much better this wire is
but of course while i had it apart i hit it with an acid brush and some compressed air
you don't mean literal acid on there right?
or had any before
I don't know as long as wire is clean I've no problems soldering any of it
also a brush might generate 1000's of volts of static
no just that is what i call flux brushes
and damage chips
nah we used them all the time when i made PCBs
kynar wire is floropolymer coated wire
how else are you supposed to clean flux off a board?
and those brushes are usually for pipes I thought
well we'd brush til the remover dried
then hit it up again
be brushing them freaking boards al lday long
man I never knew about kapton tape
and mix of acetone/isopropyl is wicked on flux
I use steel wool on old wire sometimes
you get any of that metal dust on your board etc
oh i don't do it over a board
well even on the wire
you need to wipe it good with damp cloth with alochol
so you don't leave metal sprag all over the wire to come off on something
haven't had a problem
cept once i was cleaning out an analog meter there do not use steel wool
I soldered up a old 486 laptop this weekend
soldered together a cf adaptor for it
get rid of the hd
it's just to run a serial debug program
and I managed to solder all 44 wires/88 joints without a lot of problem
oh you might like this
[02:41:30] <flyback> http://www.bgmicro.com/2gbindustrialgradecompactflash.aspx
if you rather run a machine without a hd to worry about
I would assume linux cnc can be tweaked to minimize the write cycles or do them elsewhere
would really have to put together a small system or use a few
also I was telling someone on this network
at least pata/eide drives have ATA cut command you can force the drive to only be a certain size
so you don't have to find a used 500 meg drive on ebay for a old cnc machine etc
you can use a modern disk and just restrict the size
I'm up to 1.9 BG on my root already and I'm not done builsing this system though I'm sure i could take out a lot too
those aren't normal cf's they are industral
they have smart you can see the write cycles and wear level reporting
does that mean a GB is bigger?
they have a software write lock feature and a 5 second emergency erase
with industrial sized gigabytes!
just means if you optimize your sw to avoid needless writes it should last for yrs and yrs
i'm going to have to figure out how to do this to win98se :P
well once a system is setup I don't see a whole lot of writing going on
just mount /tmp and /var in a ramdisk
heck live distros work put a live distro on it
I haven't done any cnc stuff, I wanted to build something but never got chance, I am just here helping a friend find a home for a large milling machine
there ain't no writing going on with those
I know this one doesn't even know what a hd is
let alone flash etc
mazlak cnc and forget the control system
but you can run it in dumb mode and pipe the data from a pc to it's serial port
ha ha ha I know what circuit this is
[02:51:46] <pcncx> http://www.bgmicro.com/weeblinky.aspx
I made one of those about 30 years ago using the hanging garden method
you are pretty old then :P
I started pretty young
well I was taking things apart at age 6
and then got into IT and still my hob
[02:54:24] <pcncx> http://www.reprise.com/host/circuits/transistor_flasher.asp
but got into electronics in the last 7 yrs just finally actually trying to do hands on now
mostly cause the last 7 yrs has been nothing but depression and health issues
I always loved electronics
you should idle in #electronics then
years ago people called me Mr. Wizard because i was always fooling around with the stuff
he just died like 3-4 yrs ago
[02:56:29] <flyback> http://www.bgmicro.com/monocrystalline10wattsolarpanel.aspx
* flyback cries
I wish I knew if this stuff was good or bad for RTAI and EMC2 CONFIG_PREEMPT_RCU
they might know
they play with steppers
I tried to google it came up empty
this is interesting: http://lwn.net/Articles/105571/
RTAI is so fast they have mail archives from July 2017! https://mail.rtai.org/pipermail/rtai/?&MMN_position=21:21
flyback GREENPOWERSCIENCE!!! http://www.youtube.com/watch?v=5Zy3ELxwdtE&feature=channel
Hi guys, question, how do you all normally set up your work so that you know where X and Y is on it.. What I mean is.. I have a part that is already cut to size.. and I now need to router a area out of it.. what's the best way to get it setup in the machine so that my cuts are in the right place?
An edgefinder or jog the tool slowly to the part edge until the tool just pinches a thin piece of paper b/t the tool and the work and touch off that axis the numeric value of the tool radius on the offset you intend to use . i.e. g54 g55 etc
Not sure I understand G54, G55 yet.. and I was wanting something less sloppy than to jog slowly to the part edge.. especially with fluted bits.. I always end up with the wrong side against the part.
edge finders have flutes?
No. I use the tool bit normally...
Just starting out..
then chuck up a piece of 1/4 or 1/8 roundstock and touch off with that ... adjust to the radius of the tool you plan to use
math is your friend!
yeah he's sitting next to me as we speak :P
j/k of course
me i try to never make anything where tolerances are so critical I need to worry about edge finding
If I was doing the whole part from scratch, that would be easy..
but I do have a wobbler
but, my part is already made, and I have to modify it..
wobblers handy things too
Connor in most shops they strategically place these cylindrical objects around the floor often with fluted sides for those parts
Connor its called the trash can!
so are a few dowels to line up said part so you can return without that problem
a wobbler has a floating head on a shank you set it off so it wobbles then you bring it into the part when it stops wobbling you're there
okay, saw a demo of that... Not sure how well that works with a highspeed router. I would be afraid it would sling the wobble apart.
or if the lower left corner is 0,0 chuck up whatever you have pointy and locate to the corner best you can
yeah no you don't run wobblers fast
my mill goes down to 80 RPM
I'm trying to figure out what bits I need... I need a few different ones.. one for PCB milling, 1 for plastics and/or wood. and for aluminum (2d cutout mostly)
All of which would be in my Bosch Colt router..
oh I don't want to be there when you route aluminum!
yea, I've heard that can be harsh...
a little bit
I've heard very SHALLOW passes..
a word to the wise get ear plugs
and vacuum a plenty.
oh don't worry about that
Well.. My router is in a enclosure..
the chips will go 20 feet
Dry Milling BTW.. I don't even know if it's possible..
sometimes i cut aluminum on a table saw and thats harsh
yea. I do that too..
router bout the same
wd40 helps al from sticking the bit
Okay, well.. the enclosure should help with that.
Yea.. but machine is made of MDF.
well let us know how you make out
You all probably laughing you a$$ of at me right now... thinking what the hell is this guy thinking... :)
oh we all started somewhere
actually i was thiking about the knights that say Neek scene from Holy Grail
cut down the largest tree in the forest with a herring!
there are lots of different kinds of aluminum too
some are softer than others
yea. That's true.
ever tried to cast the stuff?
Mostly would be using stuff that could be easily bent on a break
its dead easy
if you make your own you can alloy it with say lead and make it really machinable
Mostly using this to make parts for Robots and such.. not sure how casting would work with that...
I mean just make billets then machine those
you can melt aluminum on a barbeque if you have a blast running on the fire
like say a hair drier
stuff melts at about 1250 F
which is less than double lead
I've done lead before making cast bullets.
I seen people use old paint cans for crucibles
you don't get many sessions out of one but it works
yeah aluminum isn't much further up the heat scale than lead
when i did it I was suprised how easy it really is to do
then you can machine beercanium!
cans BTW are pure aluminum
molten aluminum is cool too it looks like quick silver
it looks like the T-2000 terminator
You need to upgrade your Adobe Flash Player to watch this video.
Well, upgrade then.. :) It's youtube. :)
this is my CNC machine
So? You can install the adobe plugin.
I wonder if i have this? Enable support for the Intel(R) I/OAT DMA engine present in recent Intel Xeon chipsets.
how can I tell?
What do you need that for?
so if i was transferring data on discs my CPU wouldn't be tied up
but thats OK I don't think I have it
would have to check the CPU Number...
intel says it'd have to be in the system bios and enabled
in terminal do a cat /proc/cpuinfo
waprat is now known as packrat
well it's probably not the best kernel ever configured but I can always do it over
I don't understand why this CONFIG_ACPI_DOCK needs to be selected for RTAI
pcncx: the most cautious RTAI config disables ACPI all together
alex_joni I'm following the directions on linuxcnc.org
[06:03:46] <pcncx> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Debian_Lenny_Compile_RTAI#Configuring_the_kernel
I'm enabling it this time around but it if works I'm going back to shut it off
just to see whats what
the more I read about all this realtime stuff the more I'm drawing the conclusion that nobody really knows what is going on!
pcncx: that is probably close to the truth
the combinations of BIOS, motherboards, chipsets, processors and periferials are virtually unlimited
I'm telling you nobody comes right out and says it but that seems to be the state of things
so something that truly works is close to a wonder :)
yeah I'm over here trying to grab ass in the dark to make my system a little faster
so far i can't beat high latency of 20,000 but it is so rare!
but i still have ot go with it because i hit it every now and again
this is maddening!
its like trying to play draw straws and the guy is holding out 1,600 straws in front of you
if you really want good latency you might try 2 things: either disable ACPI completely, or enable only a very small subset of it, until SMP works for you
well that is why I'm thinking they pick dock it is something nobody has
so you're sort of fooling the computer into looking for something it'll never see
well, maybe whoever wrote that page was planning to use it for a laptop?
well they got it off another document on RTAI's website
the list is identical along with a lot of the instructions
pcncx: whatever :)
I'm quite happy with the 10.04 config mozmck used
and with the 8.04 I did a long time ago ;)
I don't care much for Ubuntu
though i guess i could steal the config file out of it
what kernel version is it?
I'm using v220.127.116.11 now
[06:20:38] <alex_joni> http://lmgtfy.com/?q=ubuntu+10.04+kernel+version&l=1
config would probably be similar
I just grep them anyways
like here is one that drives me nuts: Timer frequency should i pick a low or a high speed?
CONFIG_HZ_100 or CONFIG_HZ_1000
I think I used 100 the last time
it shouldn't matter much to RTAI
that is what I went with
I'm also thinking when I really do the CNC for real to leave out all networking junk I can always have a different kernel I boot if i need to network the machine
CONFIG_HZ_250=y from config-2.6.24-16-rtai
so the stock shipped value
last time I went with 300 this time 100 I'll let you know if the Earth moves :)
think so i just looked at the 10.04/emc file
like you said probably doesn't matter
i tried them all on a gaming box with no change ... wasnt rt kernel either though
I'm getting too fixated trying to get this cast off box running as good as it can fact that it runs should be enough for me
want me to grep any other values b4 i head off ?
no I'm in make now thanks maybe another time?
build it boot it see whats what then I'm off
probbaly won't even boot
fwiw the 2.6.24-16 config is in git
[06:41:23] <alex_joni> http://git.linuxcnc.org/gitweb?p=infrastructure.git;a=tree;f=livecd/kernels/hardy;h=630b19a6b1f3b7d43ba1dbc46fa988beadbca8d5;hb=HEAD
is it possible to get a grid in the preview?
When using G41/G42 it's hard to tell, if the paths are correct
It would be nice to get some coordinates printed when clicking a path segment
or just a running display of mouse 'x' & 'y' values in the axis aligned views
was that a feature request or are you hoping it's there already?
MattyMatt: if it's not there yet, then it's a feature request
boot|sleep is now known as bootnecklad
[10:38:31] <lilalinux> http://pastebin.com/ismy5d2Q
what's wrong with that code?
the result should be a square rectangle from -3,-3 to 3,3
the tool is 1.6mm
the entry move doesn't go to the lower right corner of the square
is that an emc bug or a cam bug?
I thought the coordinates in the gcode are independant from the tool size
so my entry move should stop at -3,-3 in the g-code, like it does?
lilalinux, yes. you program the coordinates of the edge of the tool when using cutter comp
SWPadnos: can you see what's wrong with my code?
and emc puts the center of the tool on the left or right side of the programmed path, depending on G41 vs G42
no, I'm just looking at it rather than running it
what error do you get?
or what do you see that tells you it's wrong?
I don't get an error, but the cut doesn't start the the right position
I expected the cut to start at the compensated corner or the square
it shoult start at (-2.2, -2.2)
what's the tool diameter for T1?
oh, you said 1.6mm. what's in your tool table?
ok, that's good :)
the rest of the square is ok
but the entry move is wrong
where are you expecting to see 2.2 (vs. 3)?
it says end point is -3,-3
yes, I see that there's a linear move just after the G42, then an arc move which looks like an entry move
but with compensation it should really be -2.2,-2.2
the programmed point is still -3, -3
but emc will move to -2.2, -2.2
but it doesn't
wait, i'll givbe you a screenshot
I think the DRO still shows -3, -3 (but I'm not sure)
[11:00:55] <lilalinux> http://bilder.sayegh.de/paste/Bild+5.png.html
I expected that it dives in at the junctions
one thing that cradek suggests is to make the compensated code into a subroutine (so lines 17-29 maybe), and call the subroutine once with the tool you want and once with a zero diameter tool (just different TxM3 lines before the call)
i.e. cutting depth
did you see the image?
I want to cut inside the square
it looks like a large arc "up high", then a plunge, then a not-quite-aquare, then maybe a G0 Z up move
actually it is a perfect square
that's just the perspective
i just verified
it's from -2.2/-2.2 to 2.2,2.2
but the cut starts too far in -y
and stops too far in -x
you have to be careful with the first and last lines
unfortunately I know nothing about subroutines
[11:07:20] <SWPadnos> http://pastebin.com/W2WUUbZg
I think that might work
it should give you two passes, unless you turn off the "conditional execution" button
you may have to define a zero diameter tool and use that instead of T0, I'm not sure
usually, you do an entry move on a side of the square
if you enter on a corner, then you have to do an extra move at the end
you basically have to cut the first side (or part of it) twice
this is because four line segments only describe three corners. you need a fifth line segment to describe the last corner
but that's a different problem?
the compensation code can only know that it needs to stop before the end of the programmed line if there's another path "in the way"
i'll try a rotated square
add this line between 25 and 26: G1 Y0
in your code or mine
actually, it's the same :)
just before the G1 Z 3 line
that fixed the end
yep. it made a corner that the compensation code could "see"
and for the entry move?
well, normally there would be a CAM option to do the entry/exit moves in the middle of an edge
rather than at a oorner
I'll try to figure out where to fix that in dxf2gcode
if dxf2gcode is dumb enough, you might just change the drawing to be 5 lines instead of 4
ie, split one edge in the middle, and use that as the starting point for dxf2gcode
let's hope it works :)
but I fear it's smart enough to optimize that away :-)
there are messages like "... reduced to X contours"
oh. in that case it should be smart enough to put entry/exit moves in the middle of an edge ;)
[14:12:56] <cradek> http://www.quad-i.com/products-vises.html
looks like some nice ideas, but "call for price"? get real.
that drives me nuts
that drives me permanently away
same with machine resellers. always call for price
I've been getting my vises from Glacern
like the price and quility
my newish kurt is really good, but I like the idea of putting the fixed jaw in front
I guess I could mount it that way, but having the screw on the back would be a minor pain
[14:15:14] <JT-Work> http://www.glacern.com/gpv_615r
cradek: did you see the vice our shop uses? They are lovely! http://www.lang-technik.de/images/qp_04.jpg http://www.lang-technik.de/images/qp_08.jpg
neato (to both of you)
they did a trial a few years back. now we have over 20 of them.
perfect for 4 and 5-axis machines
we were also able to reduce production costs by not requiring such a large stock size due to the clamping style.
no need for parallels, either
elmo42: that is a cool vise how big is the opening between the jaws?
whatever you want. they have all sizes. just go to the main URL
they have center holding (the pics), fixed jaw, double jaw... many differnet types
and you can reverse the jaws to accommodate larger parts.
it practically makes a 4-asix machine a 5-axis due to the accuracy in rotating on the subplate 90deg.
the nice thing about the subplate is you can use the 'pins' and make your own fixture. now it can be rotated 90deg accurately as well as the vice.
[14:30:18] <JT-Work> http://www.chickworkholding.com/4dcgi/public/index.shtml
heh, request a quote lol
prob because they use distributors.
the jaw attachment looks nice
plain flat bed too
flat is nice. no chips hitting your face when you clean it.
Well that was disappointing, no chick holding the work...
elmo42 is now known as elmo40
anyone have any ideas on how to route out a piece of wood to mate up with the rounded inset of this computer case? http://tinyurl.com/34pzkdz
* lilalinux doesn't click on tinyurls
I do all the time. I have no worries... flash block, script block, Linux... what harm could happen?
its really a comp case if thats worth anything
bland case at that.
ive gotten into these itx boxes with atom procs...
man small is nice , too bad via thinks so much $$ of their pico factor
skinnypup: cheap ones are not rare
i've bought mine for ~30$
Trying to be nice.. here is the long URL http://www.newegg.com/Product/ImageGallery.aspx?CurImage=11-154-091-S03&SCList=11-154-091-S01,11-154-091-S02,11-154-091-S03,11-154-091-S04,11-154-091-S05,11-154-091-S06,11-154-091-S07,11-154-091-S08,11-154-091-S09,11-154-091-S10,11-154-091-S11,11-154-091-S12,11-154-091-S13,11-154-091-S14,11-154-091-S15&S7ImageFlag=2&Item=N82E16811154091&Depa=0&WaterMark=1&Description=APEX%20MI-008%20Black%20Steel%20Mini-ITX%20Tower%20Compu
psha 30 bux , wow
it's not too bad for computer cases here at moscow
SWPadnos: regarding my compensation problems. Couldn't that be fixed in emc?
actually I don't think it's a CAM error
cutter comp means that emc will keep the tool from going "outside the box" (in very loose terms)
at the beginning and end of the compensated path, you have no intersecting path to let emc know that it should stop short of the end of the programmed line
since you don't tell emc that there is an "obstruction", it proceeds to the end of the programmed line
you are expecting it to assume your hole is square. program a pentagon and you'll see that the assumption you want it to make is wrong.
if you have four corners you must program five fully compensated lines to make the four corners
counting entry and exit moves, that makes 7 moves you must control to cut an inside square
there is an example of cutting an inside square in the docs
it uses tangential entry and exit arcs along a side of the square
cradek, do you know if dxf2gcode has an option to do entry/exit moves in the middle of one of the lines (instead of a corner)?
I counted once: there are 72 programs on the internet named dxf2gcode
ok. me either (that's what lilalinux is using to generate the code)
I mean this one
or was it that one
[16:47:41] <lilalinux> http://code.google.com/p/dxf2gcode/
i used that one too
I filed a bug report today: http://code.google.com/p/dxf2gcode/issues/detail?id=11
get sheetcam it lets you adjust entry and exit arcs and their lead-in-out radius
skinnypup: is sheetcam for linux?
not for lin
there is a Linux version, I think
doesn't Les Newell sell that?
the linux version isnt updated as often as the other but its WAY more mature than other dxf to gcode
I use sheetcam on Linux for my plasma
how much is it?
sheetcam for linux is free
I need to make cases out of sheetmetal and my plasma. it would be nice to have something like that.
works with 10.04LTS?
idk im on lenny
worked on 804
I think he currently says you have to use the windows version under wine on ubuntu 10
I think his linux version only works on ubuntu 8
you can try a limited output version for free, but the license is 110 pounds english money
but I see he doesn't say that for the linux versions
or install virtualbox and run sheetcam on 804 virtual machine
it does allow you to pick the entrance and exit moves but only at the ends of arcs or lines
2.0.2-1 Linux version. 3.1.5 Windows version.
have you tried the plugin MyNesting?
ah, windows only
i havent. won't touch m$ with a 10' pole
looks neat though
[17:20:34] <skunkworks> http://www.youtube.com/watch?v=19RM35yKGEc
need more light... but I love it! :) The temperature display is slick.
Hi all from the cold Germany
how is the Gulf leak?
seeld since a wihle
so they say. is there no more live feed from the bottom?
i go to get some for you
skunkworks: not a heated table, eh?
no clue. (just found the video)
elmo40: all feeds closed
you can make a blob of plastic and do some engraving after it cools. I want to make my machine like that :)
elmo40: how mutch woudt you like to spend on
I have the cnc part. just need the melting head
melting head what are you gone do wirer cut on styropor
I want an extrusion (3D printing)
same as that video http://www.youtube.com/watch?v=19RM35yKGEc
[17:50:58] <alex_joni> http://www.speedtest.net/result/1005470640.png
upgraded my internet connection today
should be 25/4 Mbit
you have upc :|
it is unaviable in my town
it's ~30$ / month (including 120 TV channels and phone)
andypugh: thanks for wiki text edits
No problem. Hope you agree with what it now says?
yes, it's correct
elmo40: the kress on the cnc woudt mill the part 100times faster
!later Connor (sent via !later) Re: routing the rounded wood piece, couldn't you use a ball-nose cutter and rastering, as in the "Tux" example at nc_files/examples/3D_Chips.ngc ?
Oh, you're on, sorry, I looked a bit ago and you were off.
no clue.. question is.. how to get the profile in gcode.
excuse a simple question . what is the canned cicle fuction on lathe in emc ?
are you asking if there is one or about a G gode?
Connor: Just measure it with a straightedge and maybe a radius gauge if you have a set, and do some judicious guesstimating?
Yes in gcode
Connor: Assuming you're not set up for probing
which g code?
type g76 ecc...emc which canned cycle have on lathe ?
no. I'm not.. although.. I might be able to come up with a probe setup... I have a few servos laying around that I could turn into a 3d probe.
motioncontrol: G76 is a threading cycle
Is there a way to do it with pictures maybe?
motioncontrol: There are no roughing cycles, but I think you can use the drilling canned cycles
ok g86 fuction on lathe ?
yes, you just have to set X to 0.000
and set the plane to G18 (I think)
and g33.1 ?
I might be wrong about the G18 the more I think about it you need to be in G17 if I recall correctly
Connor: Maybe, but I would think you'd get more accurate results by just specifying what you want in g-code from the measurements. Besides, you could also just "freehand sculpt" a piece of wood like that with a belt sander.
i thing g18
JT-Work: You are correct, it's G18 for lathes
most canned cycles will not work in G18 on a lathe, because that plane means the cycle is along Y, which the lathe doesn't have
for example, if you want to use G81 to drill in Z, you have to switch to G17
that is what I was thinking about
motioncontrol: If you want roughing cycles, then both JT and I have similar but different ways of doing it.
if you want to "peck part" (or whatever) with G83 along X, you have to switch to G19
it hung me up the other day can cradek came to the rescue
JT-Work: I need theme music
[18:31:40] <andypugh> http://www.bodgesoc.org/lathe/lathe.html
is my way
I'm listening to Fats Domino singing Jambalaya with Jerry Lee Lewis atm
For JTs way look on the forum under "subroutines"
More thenks at all for info
motioncontrol: G86 includes a spindle stop and withdraw in the middle. There are other choices available also, if that's not what you want.
cradek: Thanks for the lathe tip, good to know.
my question is only for have a idea the can the emc on lathe
i don't know the g81 ,g82 ecc.have some image the work with associaton the gcode caned cicle ?
motioncontrol: start with the gcode quick ref, and you can click on them to get to the full documentation
start here: http://www.linuxcnc.org/docs/html/gcode.html
good more thanks
andypugh: That's a very interesting lathe panel you've got going there, I'll have to think about that awhile. (P.S.: s/boting/boring and s/defaut/default . Sorry, it's why I thought I could help on docs, lol)
I am hopeless at reading my own text, because I know what I wrote.
No problem. A friend of mine (who is a notoriously bad speller) says, "It's a small mind that can only spell a word one way."
Yes indeed. Thanks. Any thoughts on your Arduino resolver situation? Or is that fixed already too?
Seems to be working now, it was the uint that needed to count negatively...
Time will tell if it works. There is a fair bit of dither on it.
I am wondering if i should have some sort of filter on the resolver outputs.
nice looking stuff, did you also post it to the arduino playground?
I didn't. I might when I have it actually doing something.
I did build a complete BLDC drive based on the same basic idea and a power driver.
cradek: Back to your lathe tips for a moment, are those tips documented anywhere? I don't see them in the "Lathe Specifics" , or "G17, G18, G19" , or the "Canned Cycles" intro. There should probably be something in the "Lathe Specifics" section, especially since all the emphasis is on G18. I'll try to write something up. I'd appreciate hearing from you any that you've used and know for sure work.
KimK_: perhaps a rewrite of the canned cycle section would include information about how to use them on a lathe? We've talked about how the CC docs are not very good currently...
"if you want Z to peck, you have to be in G17" isn't really specific to lathes at all
OK, maybe a canned cycle rewrite would be good too.
I'll no doubt need your help on a few "mysteries" there, though.
if your changes are for trunk - not 2.4 - there is new behavior for the retract/initial plane (g98/g99)
you can find the relevant commits (and my idea of documentation) with git log --grep=g98
OK, there's something else that I'm not up on. Yes, thanks, I'll have to catch up on it first.
oh, that is how you find that stuff, I assume you need the proper branch checked out
JT-Work: you could add --all to search other branches too, I think
cradek: Yes, thanks. You're just full of good tips today.
* JT-Work e-mails the tip to myself so I can remember it by the time I get home
Anyone know what G70 is intended to do?
I think on some machines (not emc) it means inch mode
isn't that stock removal cycle?
I don't think so, in this context: http://www.pastebin.ca/1973850
(problem G-code from the forum)
yep looks like it means 'inch mode'
G70 FINISHING CYCLE (P,Q)
G71 O.D. / I.D. STOCK REMOVAL CYCLE (P,Q,U,W,I,K,D,S,T,R1,F) (SETTING 72, 73)
but that's just a guess without knowing what system it was meant for
Is the : meant to be a : ?
ds2: it's clearly not that, in this gcode
andypugh: I don't know what the : is supposed to do
ah yes, the context suggests it is not a lathe g-code
andypugh: clearly this isn't emc gcode
No, from a Ungraphics postprocessor
: might mean a comment
in context, the : looks odd
maybe it's block-deletable?
or a post processor hiccup
I can see doing that for a tool change
Crikey, an impeller. He doesn't lack ambition.
andypugh: did you get it to run?
Swapped G70 to G20 and changed the : to an N
It seem unnaturally big.
I notice that the N numbers repeat, so apparently that's not a problem on a Unigraphics postprocessor?
No idea. But I think it is meant to be in mm, 28" is fairly big.
but 28mm is awfully small
You would fabricate a 28" one, you would buy a 100mm one. Perhaps you would have to make a 28mm one?
47.2mm/min is not much feed either
especially at 3500 rpm
I think it's an inch program
Or maybe not...
heh, can't tell the scale from that...
secret submarine propeller...
* flyback hates life
* flyback is not suicidal, just very tired of a lot of bullshit
* flyback bbl
Connor2 is now known as Connor