Yeah, I've bought a car scanner, solr LED garden lights, and this LED FLashlight and they have all worked out really well - far better than I expected.
Oh, and a IR Thermo gun too - best thing I've ever bought
Never realized how much I'd use the IR gun till I had it.
AND unlike most of the bran named ones, this one goes up to 900F I found out
anonimasu: I have a toolpost grinder, but I've never used it
eric_u: Just opening up a Machinery Museum ?
got it with my lathe
never really had a use for it
do yo use your lathe?
it's in the middle of an overhaul
I have used it
gotcha... then you can resharpen your tooling
last time I used the lathe, I was lucky to keep my thumb
yeah, probably should have used the other jaws
it actually didn't cut, just smacked it hard enough to remind me how dangerous it is
I threw the chuck key today
I used to think I would never do that, but I did it with a hand drill last week
and I thought damn I better not start with the chuck key in the lathe
fortunately, it was attached to the drill
and 4 minutes later I did it..
I'm going to make a spring loaded mechanisml that requires you to push it down
some guy at work threw the lathe key twice in one day, he was laughing about it and they asked him to leave and not come back
which didn't make me unhappy at all, that was an *** clencher
I'd have told them to fuck off and report them..
he was an engineering student
you arent allowed to have lathe keys like that nowdays
the worker protection agency shits bricks when they see it
I don't know if we do or not, someone new runs the shop and I noticed they have self ejecting keys
well, they are required to by law
(im 99% sure over there too)
either a chuck cover or a key that wont stick in the chuck..
chuck cover keeps it from starting?
yeah with key in the chuck..
I'll have to look into self-ejecting keys for my lathe
I'll just mod mine :)
make a collet that slides up the key
and lock it with a pin through the chuck hey
I think we have some like that
and a spring
and a pipe on the outside
the new machinist got rid of the old lathes, they used to have one that had about a 10' bed
eric_u: just you wait you'll throw a chuck key someday :)
and a Heavy 10
unless you do something about it before
Couldn't you just attach one of these to it? http://ecx.images-amazon.com/images/I/41R72ZEHW1L._SL500_AA280_.jpg
unless I cut off my thumbs with my 6 jaw chuck first
JymmmEMC: but chuck keys are like 3 kg..
Just toss on a fish spinner
those probably work better for drill chuck kes
we use keyless all over at work
a good lathe is spun up to speed really fast
the best deal is a sleeve with a spring I think
ie, 2 holes in the key
and a pipe with a slot..
so it can slide..
you could have the spring push from the key handle
then cut a pipe the right length for the spring
and drill one hole and make a slot in the pipe
but you do need a retaining mechanism for the pipe
hole and a pin
and a slot in the pipe
I'm with you now
pretty elegant :)
I just got my grinder working today, but I cant dress wheels so I dont end up with nice finishes
I just have to figure out why my lathe cuts ridges on the face of things
hss or carbide?
then I have no idea
it does it on aluminum
with carbide I'd say too shallow cuts :p
there is something wrong with the cross slide
my lathe turns nicer then the grinder grinds stuff right now
but that's with some wiper insert off sandvik
JymmmEMC: does hf have a $20 usb wireless adapter?
eric_u: for laptop?
usb for anything
eric_u: Well, what are you wanting, please be specific
if I get a usb, I can move it around
for a laptop?
mostly for a desktop
[00:27:12] <anonimasu> http://www.coromant.sandvik.com/sandvik/0110/Internet/I-Kit1/se02673.nsf/7ca8cd558b939dbfc125693700332c1e/f03e4c2ca8f015fec12570d600492b1d/Rt_Body/0.97A2!OpenElement&FieldElemFormat=jpg
so I can use it where I want
eric_u: not to be funny, but have many thing do you have that could use it?
back when I was building up my machining equipment museum, I was trying to find an indexed tool holder for my lathe, but I finally gave up
I have an uncountable number of computers
just buy them used
eric_u: are all of them at least USB 2.0 ?
ebay must have sandvik/seco tooling
no, probably not
well, there are so many kinds of inserts that I got stuck trying to decide
eric_u: quick change toolpost?
eric_u: K, See if you had a laptop that has a PCMCIA slot, I have a intel 802.11b card you could have
eric_u: calling them up and asking about what you need workd
ie, "Hello, I'm turning XXXABYZ and I'd like to have a finish of RaXXX and my machine is not extremely rigid
I never figured out which quick change toolpost I could use with my lathe either
eric_u: Do you have a laptop without built-in wifi that has an available PCMCIA slot?
no, I need it for a desktop
eric_u: What, no cat5 ?
I have 1000 feet of cat5, just trying to think where I hid the ends
[00:32:58] <JymmmEMC> http://shop2.frys.com/product/4907361?site=sr:SEARCH:MAIN_RSLT_PG
do not mock me with the fry's links :(
eric_u: the general grades of carbide works well, though but it depends on your machine(how rigid it is)
eric_u: zip code?
the general ones turn almost all materials that you'll ever see :)
even uranium :p
eric_u: $14.90 + $6.32 shipping
that is nice
they had the usb one on sale on wednesday
eric_u: I have one, but it does get warm
have you tried it on linux?
No, don't think I have.
but wifi on nix is not always straight forward in itself either
tell me about it
I spent about 2 weeks working on a embedded computer with wifi for kismet at work
did you get it going?
it was cool seeing my wireless router on google maps though
yeah, we went wardriving with it
my boss wanted to put it on a robot and have the robot wardrive
I want to try installing ubuntu on my S10, even have a spare hdd to try it on, but not sure how to get the iso on a thumbsitck to boot from it
we never got around to that, it was possible though
what's an s10? pickup? :)
[00:43:02] <JymmmEMC> http://www.notebookreview.com/default.asp?newsID=4620
mine's all black
eric_u: did ya look?
eric_u: It's a 10.3" wide screen mini-notepad
[01:58:57] <jepler> http://bits.blogs.nytimes.com/2008/12/16/for-sale-2000-motorola-phone-sapphire-crystal-casing-included/
dgar1 is now known as dgarr
are the flex cables in this schematic (http://electronics123.net/amazon/datasheet/OV9650FB-LY.pdf)
standard? I'm trying to connect this camera to my circuit without manual soldering
hi. I have the option to run smp with emc-axis. Is it worth the effort?
you would have to custom build everything including kernel, rtai, and emc2 releases. the tradeoff is possible slightly better realtime performance. if you need that performance, then maybe. if not, no.
options are dual celeron 500 on abit or dual p3 1ghz on gigabyte mobo
on one system I tested, running a do-nothing CPU hog on one core significantly helped the latency on the other core
oh. my results probably wouldn't be valid for those systems
celerons suck. use the p3, smp or not
this was a core2 duo
This is what i have on hand now. Current cnc cpu is amd thunderbird 1.2 ghz
unless you have a specific problem with that system, it sounds like it's the best of the bunch
desiding what to do whit all these parts, want the best cnc box for me, leftovers for a buddy's server
the p3 is a close second
the celeron 500 is a distant, distant third
dual CPU will have a much higher impact on a server than ojn an EMC machine
I will stick with the thundo 1.2 then. Dual p3 1ghz to the bud's server. Thanks.
then again, you could test and tell us if we're right :)
Whis i had the time. Sure' I'll do it sometime in the future as more junk parts come in.
I think I've discovered that it's nearly impossible to stop eating Fritos and sour cream
smoke from a distant fire
SWPadnos: right after a 20 oz prime rib and all the fixins
welll. in that case I could stop (but only if I had dessert) :)
how's your vacation so far?
what vacation? I don't have the kinematics done yet. I didn't work on it yesterday.
it was 60 degrees here today. I fixed four cars. amazing how the work piles up when it's cold
60 some here now
how long has it been warm? (just today?)
yay spring is here
yeah, just today
it's been 10-20 here, but it's supposed to be 45 and 50 over the weekend
it is supposed to snow and sleet in the morning but then warm up to the 40's tomorrow afternoon
whoa - now predicted to get up to 58 on Sunday
I get the weather first, then jmk, then you
that's why I asked ;)
you guys are better at predicting the weather 3 days out
than NOAA or NWS or whomever
you'd think the pros would notice the pattern too
we can look out the window pretty good
it is a little harder here, I think 14 storm tracks go through Vermont
crap. when did it get past midnight?
I need to pin two gears together with 1/8 inch pins. they won't drill with HSS. what should I try next? carbide drill or end mill?
center drill with carbide or cobalt
I have a draft of what I did today www.mpm1.com:8080/cinci/comps/cincikins_work.c check it out and see if the C logic makes any sense yet
why must you use 1/8 inch pins?
no room for anything else unfortunately
how thick are the gears?
a small one to a big one - the small is about .4 thick
do you want one gear to hold the pins and one to slide onto the pins?
they can both be a sliding fit - when assembled the pins will stay in - it doesn't matter
try a carbide drill first - what will you be drilling with? a drill press? - the mill?
do you know what material the gears are?
they will file, but a HSS drill won't do much damage before breaking
if I had to guess I would say they are case hardened - the hard part will only be about .020/.030 thick
are you using a cobalt drill?
the one I tried today was just M2 HSS
the first one was unknown
M42 cobalt is nice and hard, but doesn't chip like carbide
I've only wasted two drills so far
if it's case hardened, maybe I can cut the surface with a 2fl EM
not a lot of dollars for a <1/8 drill :)
I'll have to order some
if it files then carbide should cut it - a file is generally the same or softer than regular HSS
if you drill broke try more speed
I was going 50sfm .002/rev
the heavy feed in case it was work hardening
135 deg split point drill
.002/rev is prob too much - I don't think it was work hardening the gear - I think the feed was too much - 50 sfm sounds about right - try .0004/rev
ok, I'll try super light feed
that's ~ .5 ipm
yes - you want to just wear out the hole to start with - when you get a good dimple you may be able to increase the feed as the drill will be somewhat guided by then
ok, I will try it, thanks
I don't want to take it off the mill till it's done - difficult setup
if all else fails - box it up and send it to stuart - edm will get it
thanks, that's very generous
if you break a drill in it then your only option is the previous suggestion :)
I could also connect them another way - but this would be 'easy' I thought
nope, grind it down, turn gear a little bit, try again :-)
I think you can get it drilled just fine
[05:40:19] <cradek> http://www.use-enco.com/CGI/INSRIT?PARTPG=INSRAR2&PMAKA=619-0834&PMPXNO=16718578
if only I had some of these...
that will make the hole a little oversize
if only you had a waterjet
I don't imagine waterjets being precise enough for a pin hole
tonight I should go to bed - I'll try it tomorrow - thanks again
indeed. night guys
edm for small holes :-)
anyone still around??
that's right admit nothing
eric_u is away from his computer right now
that's admitting nothing :)
.... a couple of weeks ago I installed 8.04 from live cd on my desktop machine. I've tried sim and stepper_inch to test
gcode and things that run fine on my 2.2.5 on the mazak choke on this machine.
it bitches about no program end when m30 is the last statement.
it won't do cutter comp ... complains about gouging
it says 'linear move would exceed limits which is prety hard to do with 0,0,0 being in the middle of a 30" x 15" x 7.5" workspace
with a 3" move
does it say "I can't do that dave" ?
nope just the usual error messages.
did you upgrade the emc version?
If my name was Dave, I'd have the error message be HAL for about the first 5 minutes
2.2.7 came as the installed version .. no I've not upgraded to 2.2.8
sounds very strange
especailly since the code is generated by synergy which tends to be rock solid
maybe I should upgrade to 2.2.8 and see what happens.
can't lose much
hmmm .... even with glxgears running latency is only in the 10K range.
that's better than my computer
glxgears is running at about 215 fps.
haha...isn't it normally in the thousands range?
don't know how good that is ??? anybody care to comment
not on any computer I've tried.
my cpu on the mazak is about 10x that. not nice but isa slots are hard to come by
full screen glxgears slows the frame rate to 15-30 but doesn't budge the latency numbers
I have a few mobo's with ISA slots
dave_1: this is fullscreen?
dave_1: try resizing the window to 0x0 and minimizing it
the 15-30 is
hi guys. Any performance advantage to running raid on my emc box?
emc doesn't do much disk pounding so probably not
0,0 plus minimize .... frame rate goes to almost 2700
ah, there we go
starting glxgears knocked my latency up to 20k
what kind of system are you folks using?
this cpu is a 2.8 G P4
amd thunderbird 1.2ghz
I should probably change my video driver though, using MGA
smp makes a significant difference
mazak has a p3 at 600 MHz
thinking raid 1 mirror 'cause my hddrives are from my old server. 2 copies would be nice
of course, I'm running mine over the network :)
Actually, disbling things you don't use in BIOS helps. serial ports, unused IDE controllers, etc.
maddash: smp on what processors?
topls64: SMP, as in using multiple cores and/or processors
my latency is holding at 10341 and 11070 no matter what I do.
I had asked about smp here earlier. was told no real performace advantage w/ my equipment
topls64: my dualcore pentium d @ 2.8GHz has a latency in the <5K RANGE
i think i posted the numbers a while ago -- let me go check the logs
thiere is supposed to be a build option that locks the rt in one core
ok. my optionss were dual celeron 500 or dual p3 1ghz or currently (keeping) single amd tbird 1.2ghz. latency was ~ 17k
SWP tried some stuff like running a bash script that apparently kept stuff in cache so rt ran faster.
dave_1: there is. io_cpu_sched=1 or some such
dave_1: it's a grub boot option
you might search this irc and see what you find
I just remembered: "isol_cpu=1"
I think I'll go upgrade to 2.2.8 and see if that helps.
haha, I dug this up from memory of 1+ years ago http://www.linuxtopia.org/online_books/linux_kernel/kernel_configuration/re46.html
see ya later .... ah GOOD memory.
didn't i help that guy a while back with his kwonky ubuntu installation?
maddash is now known as Guest11042
is the vesa driver supposed to be better than mga for latency?
so, should i install from the livecd or install ubuntu and the emc packages
thanks. shutting down to give it a try
how is it going?
pretty much survived christmas
we have tons of leftovers ;)
And i'm sicker than i've ever been. :'(
I just got over that.
every 30 minutes, regardless of wether i've eaten or drank anything, something comes shooting' out on both sides, been going on for over 15hrs now
I don't even have the energy left to get out of bed
could someone remind me how to 'source emc-environment' to work with such programs as gdepth? thanks
you are using a cvs checkout, run-in-place?
in the top level dir of your checkout do $ . scripts/emc-environment
then run stuff from that shell
ok, thanks John
if you want more than one shell, do that command in each one
("$" represents the shell prompt; you don't type it)
some people need to be told that
does it make sense that Dave has gcode that ran on 2.2.5 that doesn't work on 2.2.7?
eric_u: scrolling back, it sounds like dave_1 changed a lot more than just going from 2.2.5 to 2.2.7. For instance, his gouging errors would be explained by different tool sizes in his table.
that's not to say that we didn't somehow introduce a bug in the gcode interpreter from 2.2.5 to 2.2.7, but he needs to troubleshoot and figure out what's due to having different configuration files (primarily) and a different os version (though that's probably not the cause of any of these items he mentioned)
what is a good, or "must-know", thing for a newbie in the area of Numerical Control? Ca installing drivers or something like that be hard?
yes-man-1: always check your tool offsets twice before starting a program
ok, but i meant e.g. problems with drivers or so... Can it be that i will have to "do something" with wires or electronics?
yes-man-1: well you obviously need to wire up your mill to the control
ie, motor drivers and stuff
you should probably go to cnczone and look through the build threads for the type of machine you want
when you say "drivers", are you talking about the software that uses hardware installed in or attached to the computer, or the hardware that actually puts current through the motor coils?
that will give you an idea of the complexity of cnc
not you anon ;)
i mean e.g. machine <>computer
i thought if i can attach it to e.g. laptop thru usb. Can it be (with relatively old machines)?
yes-man-1: maybe it's better to describe what you want to achieve
you usually cant, the most usual way to communicate with machines are rs232(ie serial port)
or parallel port
or whatever :)
alex_joni: notice the old :p
yes-man-1: it depends on your control
anonimasu: and the only way is using the network if my laptop has no COM-ports, right
I'd say it depends what you want to do
anonimasu: ok, will see
yes-man-1: you dont get to choose.
do you want to keep the existing control, and only want to communicate with it?
yes-man-1: if it's a already made control..
if that's the case, then this channel is probably not the best one you need to address
yes-man-1: What kind of control is it?
if you want to replace the existing/or nonexisting control on your CNC machine, then you probably want to use emc2
20:52 < alex_joni> yes-man-1: maybe it's better to describe what you want to achieve
anonimasu: are there any words I shall say to my eployer, except e.g. "see i've nicely (re-)arranged the primitives (e.g. thru the layers), and this MY code has less moves than the one supplied. I want to eat though, so add some money to my salary, come on, rock-cking on!"
yes-man-1: you are not making any sense
alex_joni: i have one russian application, TechTran, and seeing to emc2 right at the moment.
* alex_joni is waiting for more input
anonimasu: I just want to ask if there's something experienced people already know
and just "whole control" since it is relatively little firm, used machine(s)
alex_joni: about working as a good CNC-operator
probably not much you can learn over IRC
experienced people are just that, people who have experience, that comes only with time and work
alex_joni: yeah, that's right! Will work with it today.
yes-man-1: you probably should take the tool table advice very seriously.. if you've never been doing anything like it before..
yes-man-1: it's a $$$$$ thing for your employer if you fuck it up,
anonimasu: i can imagine the fedrate shall be low enough to be safe
imagining dosent do you good..
and lubrication... Everything shall be fine
* anonimasu sighs
if your tool dosent go where it's supposed to you'll be doing rapids in the table.
quite often cutting too slow is just as bad as too fast
depending on the material cut
some cuts don't like lubrication at all
anonimasu: i can imagine i'm creating g-code and check it with emc2
alex_joni: why? the insufficient load can kill that motor of the mill?
the tool rubs on the work, and hardens the surface
insufficient load causes work hardening of some materials
alex_joni: i meant joints of the machine - my area, too
you are then cutting through work-hardened material all the time, which reduces the cutter life by an order of magnitude or more
anonimasu: as e.g. rubber, right
yes-man-1: not really.. more like stainless
[19:08:50] <jepler> http://en.wikipedia.org/wiki/Work_hardening
though for machining polyurethane putting it in the freezer helps :)
SWPadnos: and you mean "second time thru the cut path", right?
ok, following a link
as the mill spins, one tooth will shave off a small thickness and work harden the remaining surface. when the next tooth of the cutter comes through, it's cutting a hardened surface
and hardening it further
ok, but how does feedrate prevents this?
when yo ucut a sufficient thickness, you are cutting under the hardened portion of the work, cutting the softer material undernerath
it makes the endmill take a bigger chip ie, cutting past the hardened surface
anonimasu: ah! I meant the speed!
omega <> V
spindle speed, and feedrate are related of course
together with number of flutes
alex_joni: are there any theoretical background to get the function F=[omega,V] ? I mean the width of the cutting surface, number of surfaces per Pi, and the speed damn thing moves. Seems familiar - but someone could have calculated this
yes-man-1: there's a theoretical one in the machinist handbook
alex_joni: oh, flutes, in particular, and good music is good, yeah ;)
[19:18:42] <alex_joni> http://en.wikipedia.org/wiki/Machinery's_Handbook
alex_joni: thanks, will read it
buy a hardcopy and go to bed with it
there are some softwares out there that help with this stuff
[19:20:27] <anonimasu> http://new.industrialpress.com/
anonimasu: going in a bed with imaginery Jennifer Anniston, not with hardcopies :-/
alex_joni: i have one to arrange & optimize primitives when it creates gcode.
the one I linked doesn't do g-code
it only knows about materials and feedrates & spindle speeds, etc
nah... will calculate the force fom the angle of the attack and thickness, i think the amount of the flutes makes this force of the cut=torque+bending to be constant thru the width = diameter. then i can add...
force/[omega,speed] rate, where speed <> omega is in the question. While omega is rather ultimative (at least for certain ranges speeds) - speed or feedrate is in question. Right?
yes-man-1: the usual way is to look up the tooling manufacturers recomendation for feeds and speeds
anonimasu: "i'm not looking for easy ways" - Zap Brainygun, Futurama, 30xx.
you should :)
anonimasu: joking, i'm already looking for some free book, we have some old, scanned
but always keep in mind that tooling manufacturers state production feeds/speeds
and assume super rigid machines
anonimasu: "super rigid" - bud the speed shall be low enough to not hurt the mill
speed and feed is related
ie, the feedrate and rpm..
good night all