you can get a vfd for that price, and i'll work WAY better
aa-danimal-shop if this works good i should hippyware this the other free one I seen out there isn't as generic as this is
aa-danimal-shop: you do anything for cooling/bearings when you up'ed your rpms?
my crappy assed mill sounds like its about to explode at its top speed of 2500 RPM
BlackMoon, no...the motor is a 1750rpm motor, and usually the bearings are the same as the ones in 3400rpm motors, so i figured it was ok
I meant spindle bearings :)
i'm not making out the spindle
pfred1: Yea mine gets pertty noisy at 1600rpm
oil gets full of foam too
well not foam but little bubles
mine is belt drive
ih mill, so gearhead
yeah mines not geared
i have the pulley ratio set at 2000rpm's at 60hz, so it hits 4000rpm at 120hz
the mill would normally do 3800rpm's
but i didnt want to loose that much low end torque so i set the pulles in the middle
gears are nice for quick change, though you still sometimes need to shift the spindle to change gears.. little noisy though
I don't think the gears where spaced very well :)
I'm so slow to figure out whar sleed I need ot be at that the act of changing isn't a big factor for me
setup is allways 9/10ths of the work anyway
though in some of my cutter boxes i just wrote the speeds for bits down in felt tip in them
least for 100 sfpm
I keep a notebook of jobs but flipping through that can take a lot of time
thats kinda cool
with 100sfm its easy to scale that as needed too
yup just double for 200 sfpm etc
but usually i need 100
iv considered printing a chart somewhere
oh i got those too
I don't make very good use of my shop walls
need to buy some pegboard or something
but felt tip penning in the speeds has been the handiest
we have a ~30cm board running around under the top shelf of our shop (all the walls) and we use it as a whiteboard
write feeds and speeds on there
but we have gotten pretty handy at looking the tool up and doing the calculation these days
Valen I printed out a decimal fraction metric chart and taped a magnet to it its one of the handiest shop aids I've made
check out gwizard
Valen because when i ned it I can grab it then stick it lots of places
heh that would be handy
yea iv got a chart like that
Valen yeah its like magic
and a tap chart for 50/75% threads, that gives decimal inch and number drill letter for each
1.118654687 inches isn't that handy
usually I leave it stuck to the side of this one roller box
Sometimes its easyer to grab a drill with my caliper :)
especialy if I don't feel like opening my 115bit set
'lets see J or M drill wtf oh its 0.342 i'll just grab.. this one, 3.345, close enough'
Valen I printed out a tap chart and just leave it in one tap tool box I don't care if it gets greasy etc figure when it gets bad I'll just print another its held up good so far
(numbers random but you get the idea)
yeah my conversion chart has all the letter number fractions etc on it
I should post it up
I wonder where i can upload an html file to?
post it in the wiki?
or I'll host it
Valen yeah but I have to get it to you
dcc should work
tell my irc client that ;)
my router is screwy it doesn't allow DCC I haven't figured it out yet
aa-danimal-shop: you around?
[00:25:13] <Valen> https://www.google.com/accounts/ServiceLogin?continue=http://knol.google.com/k/%23createknol&passive=true&service=knol&hl=en
pfred1: you gotta setup some port forwards on i
BlackMoon I bet
damn google didn't like my choice of passwords
[00:27:24] <BlackMoon> http://www.google.ca/#hl=en&source=hp&q=irc+router+dcc&meta=&aq=f&oq=irc+router+dcc&fp=4e56a98e25e5ab48
* pfred1 used "password"
uou shouldn't need port forwards for outbound dcc
Valen believe me I've tried
my ladder pretty hacked? lol
I didn't get your email
you didnt??? hmm
Valen I seen some others online i like mine better
[00:31:16] <Valen> http://www.vapourforge.com/tools/Drill%20Guide%20Chart.html
you send it to jt.plasma?
Valen thanks its nice right?
ok that is in the beer cave... I'll go down there
i can send it to the other one
just got my turret lock to work
jt.plasma at the g mail dot com place
that computer just crashed
i think the vid card is bad
Valen I've found if you want it all on one page you can screenshot it in a browser window and scale it
I can get it from downstairs np
thought it'd have more fractional sizes in it
like 1/8th etc
oh wait there it is
Valen you had me going for a minute
"oh wait there it is" ....thats what she said!
Valen it does look like i missed a bold tag on the first number
there I fixed it
it was one pain in the ass html file to make
damn crappy pc
video card went bad
mill a new one
I was looking at DVD burners last nite i htink I need to get one here
the DVD drive in this system is shot I think maybe its the controller
system gets drive info but drive she a no a go
what this system really needs is RAM but for what it'd cost me to buy some more I could just about get a whole new system
skunkworks you get a gold star
yeah rimmjob bus
*seemed like a good idea at the time......
skunkworks hey I got this system at the dumps it works ....
skunkworks but when i priced out the memory I found out why it was at the dumps!
we have some older workstations at work that just have 256mb ram for that very reason'
oh its insane for 512 MB it'd cost like $150
I figure maybe I'll just fall into another stick someday ripping it out of a nother jumker PC
yea if it doesnt use DDR your kinda screwed
if it does use DDR its like, pennys a gig
BlackMoon thats why I'm living with what I have
system wouldn't be too bad with another 512 MB in it
* BlackMoon rocks 6gigs of DDR3
So much memory my OS prefetchs large sections of my HD into memory.
hey i have 22 MB free RAm
empty ram is wasted ram
DaViruz yeah i only running like 2 apps now :)
I have 126megs free ram
and 3700megs 'available' (ie, used as cache but able to be instantly released)
it is posible to use the emc2 to a homemade edm sinker?
humbert I htink I have heard of it being done
theres been some work using edm with emc2, google emc2 adaptive feedrate
a wedm used it
whre can i get information about
and I thought i had emf noise issues to contend with using stepper motors!
gotta dig for it, the user was 'mdynac'
oooh the lathe stops fast with the resistor
anyone know anything about setting up vfd's?
i'm trying to set the dc injection braking
manual is vague
aa-danimal-shop googled it?
I think with a resistor you don't need DC injection?
I thought DC injection did help slow it a little faster at like really low rpms, but I could be wrong.
you could be right...
it does seem to help
cradek, i got the resistor mounted in the lathe
fits perfect in the base of the machine
last time I played with a vfd - dc injection helped.. but resistor was a lot better.
yea but I think you can use both
i'm using both
I saw a webpage where someone made a brake for a grinder and they used a transformer winding somehow
seems like it slows down fast till a certain point then it kinda coasts
I vaugely recall reading about a resistor/DC injection switchover point on the VFD manual I read
hmmm setting the decel time higher actually helped
what about regenative braking
there's a parameter for regenerative brake duty ratio
woops, the chuck came loose
stopping a little too fast i guess
heh - that is working...
D4-1 chuck FTW!
buy me a new spindle!
i'm gunna go steal JT-Hardinge's spindle
well i think i got it set pretty good
decel is 2 seconds
not bad considering it's got a 6" chuck and a 8" faceplate on it
thats from 3000rpm's
something would be getting pretty glowy
seen those friction welding things?
doesnt get too hot
the resistor doesnt at least
does anyone know how much kinkos charges for a 1000-page print
damn, publishing a novel?
list of my sexual partners?
Valen, who's bruce?
do individual pins on p-ports die often?
well bruce was there but we never crossed swords so its ok
atmega depends how badly you abuse them
afaik, there has been no abuse.
but, I really meant a single one dying vs. all
i wonder how bad it would be for my washing machine to clean my shop rags in it
aa-danimal-shop go to a salvation army and get a bag of rags off them
atmega sounds like you could have used my unpatented port protector!
i dont like being wasteful
aa-danimal-shop using up a rag and tossing it out isn't being wasteful
it is if it can be cleaned!
aa-danimal-shop I rotate my rags as they get dirtier i use them for progressively nastier tasks until they're just layers of grease
yea, i'm at that point lol
take em to a laundry? ;->
na, dont wanna mess up someone else's machine
hell if i want more rags i can always go look in my closet
pfred1, i went through the closet already. thats why i had to buy real rags
I was going out ot eat the other day and had to reject a lot that it was offering me as being too ratty to go out in
get an old washing machine, you seem to have good luck getting used equip. the grease & chips would mess up your regular machine,. and line dry them, the most expensive home aid is elec dryer
aa-danimal-shop I'm sure the salvation army gets clothes even they can't sell
but get LOTS of rags, a quarter or half load is wasteful
tom3p, i'm out of room. i couldnt fit another machine in here if i tried
the thought of washing rags is just anathema to me is all
aa-danimal-shop when i get my CNC machine up and running I am thinking about suspending it by a pulley system from the ceiling and landing it on my tablesaw outfeed table when I want to use it
beam me down scotty
my computer desk is like that kinda
probably cost more in detergent than rags
you must have a small cnc machine
my whole wardrobe is rags
aa-danimal-shop none yet but it won't be big when I make it
if i tried suspending any of my machines from the rafters, it'd take my roof down
aa-danimal-shop, youre in california, put the machine outside
aa-danimal-shop yeah and make sure you get a nice avacado colored machine too the neighbors will enjoy that so much more!
lol my wood working equipment is outside
paint it black with blood red trim
tablesaw, radial arm saw, etc
even my 20 ton press is outside
Valen nothing says class quite like avacado colored home appliances on the front lawn to me
I always thought that a 20 ton press weighed 20 tonnes
was a while ago really
I can't talk because i have a meth lab in my backyard :)
i doubt anyone will notice thge wash machine amongst the other stuff
let me find a pic of my meth lab and post it
[02:22:48] <pfred1> http://img10.imageshack.us/img10/9830/p1010018yr.jpg
bear in mind i can't even see that from my house
that looks hot
jackc yes that is my own oersonal eyesore
instructables ... "Another way to do laundry is to put the pail (tightly covered!) into the back of your car and then drive around. The bumps and jiggles clean .."
Valen and I bet you thought I was joking when I said i had a meth lab in my back yard?
Valen I even added onto it
Valen when I moved in I found some rather odd labrotory glassware around the property so I think the former owners were doing a little bit of home cooking here
Valen and there are some chemical barrel stands in my woods too
could be interesting if the cops ever visit
i'll tip them off!
and for years the strangest people would stop by
sell them vitamin powder?
so all of this leads me to believe the former owners are now in government supplied housing with bars on the windows
that and I used to get all kinds of mail for all sorts of people at this address
valued customer from phamacutical and labware suppliers huh
I honestly believe my trailer is an ex-meth lab I mean i seen a documentary on TV once and the stuff they showed looked identical to me
let me find an interior shot
place is seriously spooky: http://img7.imageshack.us/img7/2276/p2200012e.jpg
skunkworks no doubt
skunkworks pictures just don't do it justice
looks clandestine lab to me
this is my back yard: http://img717.imageshack.us/img717/8292/p2200017.jpg
you could probably walk in that direction for 5 miles and not come across much
I guess after about 2 there's a road
but there ain't nothing on that road where you'd come out
Sounds like my neck of the woods, except for 5+ miles to the road.
clytle374 you'd hit the road sooner than 5 miles but there is nothing on the other side of the road
Sounds like home sweet home.
clytle374 yeah i love it I came from suburbs by NYC and that life got to me
I've been there too. I've been to the NYC area for work, get claustrophobic.
its so noisey
aa-danimal-shop, just for the biker in you http://www.homelessdave.com/hdwashingman.htm
tom3p don't let ed begley see that!
Moonshine is still the lab of choice in these parts.
I was going to Alabama and i took this back way someone told me to take and along the way I swear I saw a billboard advertising moonshine and on it the sign said packaged the old fashioned way and there was a picture of a mason jar
all i could think was isn't moonshile illegal?
clytle374 I hear up in the hills they're taking to growing pot a lot now a days
i got 'livin like ed' i liked readin it but dont do everything he does
tom3p the junk he does seems almost wasteful to me in a way
tom3p, , nice!
laughable at least
pfred1, Moonshine: Federally yes, locally here no. And many here don't believe in federal anyway, on of the census works was run off at gun point before getting to our house. He was scared bad.
clytle374 well thats just plain ignorant census means federal dollars
dad had a pistol holstered, didn't help the guys nerves any.
clytle374 either you get it ir some city slickers that don't deserve it gets it
and they'll take it!
Many here just want left alone, and don't take well to being told they must answer these questions
census is actually in the constitution
it is a cornerstone of what makes america america
we got to know where all of our people are!
hahaha, they need the numbers. But the long form is BS
I heard its like 10 questions
that' the short form.
We wrote the number of people living in the house and mailed it.
So for a enumeration why do you need to know if I own my home? Also if the records are confidential, you sure don't need a name.
land ownership information is important to buildingdemographics of a region
the census guy got a little too personal for my liking. i scared him off with the dogs when he wouldnt leave me alone
i told him i'm busy, and i'm opening the door to go to my car. the dogs are likely to follow so i suggest leaving before i open the door
I lke dogs
i told him how many people live in the house, and that i owned it. He didnt need to know the color of my curtains
We were nice to ours, but he wanted us to tell him about who own that cabin ect ect, we told him that was his problem.
so do i, but my big dog walks around with a pretty serious look on his face all the time, plus he looks like a pit. most people are scared shitless of him
he's harmless though, unless you try climbing my fence
I was doing some work in a body shop once in a rough neighborhood and they had a few dobermans man them dogs were legendary
Our guy thought only bulls have horns, we left his misconceptions alone;)
More fun when they think it's a killer, when its a teddy bear
one of them dogs jumped off a second story roof into the street got run over by a car and kept on chasing a guy!
but they liked me
i love dobbies
such cool dogs
I prefer rotties but dobermans are OK
i'd get one if i didnt have 2 already
I did meet a dog once that did give me some pause though
rotties are cool too, but i prefer a leaner dog for hiking and whatnot
it was a doberman great dane cross
imagine a doberman the size of a great dane
yeah it was a hound from hell
I donno what that breeder was thinking
but that was the most impressive dog I ever saw
it came charging up at me and i just stood there and its owner called it off
my garage is super smoked out right now
and not in the fun way
running some decent sized parts on the lathe and the cutting oil is smoking up
but it's still better than doing them manually
Maybe you should try some Indonesian cutting oil.
Maybe that's not cutting type oil
maybe you should invest in an exhaust fan :)]
Now I'm writing a nasty letter to an ebay seller that doesn't seem to want to honor the auction for my last servo amp.
it is cutting oil
clytle374 why bother just get ebay to refund you
5 discs, all say 'error in 1 files' on the integrity check
MattyMatt emc2 instal CDs?
MattyMatt did you MD5sum the iso?
yep, md5 is good
pfred1, I watched for a month, and finally won. I'm going to get these items.
MattyMatt yeah i had that happen can't remember the distro i just installed it anyways no problems
MattyMatt it may have well been emc2
just apt-get update when you get it running
if I install it, I'll bet it'll work around broken files until it updates, especially if it's a non-system package broken. the trouble is, I want to boot liveCD to check there's nothing essential on the hdd before I format it :)
boot it up what do you have to lose?
possibly several years of code that I'd forgotten about
cnc's are great. 5 minutes of programing and it saved me a few hours
worse thing that could happen is you have to turn the computer off
plus i can sit on the computer like a lazy ass till it's done
ah they all either hang on booting or go to a login screen, which I'm told is not supposed to happen
what speed you burning at?
all different speeds
for a boot CD I'd go with 2X
pfred1, besides I'm on a tiny budget.
lowest I can do is 4x, it's a dvd burner
1x dvd = 5.5x cd
clytle374 tiny budget for what?
clytle374 what are the parts for?
maybe I should try the combo drive on my thinkpad, but I don't really want to install nero on that
my mini mill. a demo modle.
To prove I can do it for the boss man
clytle374 I'm trying to keep costs down myself but am finding it takes an awful lot of time to do so
I've got a lot more time than money
clytle374 like it took me a long time to make my motor driver
I'll pull the hdd, and check it from this machine. yeah plan
clytle374 now it is taking me a long time to make a parallel port buffer
pfred1, I've got under $200 in my servos and amps. I bought the Mesa cards and computer because it had to be easy to replicate.
clytle374 something tells me it'll take me a long tome to make the actual machine too
I've got a mini mill. that will at least prove that I can retro something larger.
clytle374 but I'm doing it all as something to do because i enjoy it
clytle374 I have a mini mill too but I didn't feel I could build hardware powerful enough to drive it
I do too, just getting annoyed with people trying to screw me
clytle374 tht and retrofitting it with ballscrews would cost a fair amount
I've got a small Mazak slant lathe retro lined up, but I have to prove it first.
$23 of nuts $10 per foot for screws.
Lets just say I'm going for broke, work is way slow.
well there were a lot of reasons i didn't try to do my mill mainly because it can't do what I want to for what I plan on CNCing
The mini mill won't do much, that is for sure
wouldn't bigger motors be better value than ballscrews? if the only drawback is friction
MattyMatt not really no
most homebuilt machines suffer rigidity problems way, way before they stall an axis
ball screw you can get faster rapids and the leads in the machne have a lot of backlash
hmm yeah, I've seen the prices of big precision motors. scary
clytle374 I do a lot now wiht my mini mill manually but not the sorts of thngs I'd like to CNC
I don't understand why a $50 nema23 is $200 in nema 34. there aren't any precious minerals in it
I'm not a manual machinist, I would at least need a dro.
manual milling is really assisted by dro's
counting cranks is a pain in the balls
toastydeath I mark work and set stops
I don't do that for runs of parts
you mean .0625 per turn? Yeah that's just great
I don't run parts in my garage
but i have in tool and die shop I worked in and we dind't use CNC there either just setup jobs
My plan is to hopefully get a little extra work, and then hopefully build a bigger machine.
Or jsut still be broke
either way, i did something
my hope was to make a machine that could make a better machine :)
clytle374 I enjoy electronics and Linux so to me this CNC stuff is a good fit
I'll be lucky if I can mill wood as accurately as I can cut by hand
Been a Liunx user for years, when to school for electronics. Like both
well building stepper drivers was unlike anything else I'd ever done before in electronics
I ran into a few real snafus along the way
I love H bridges
one of the few circuits that invalid input = explosion
BlackMoon can't say as i used any of them
how did you drive a stepper without H bridges??\
monolithic chopper chips
I just found out that I can sue the seller in my state. I have 2 of the 3 ways to establish jurisdiction.
MattyMatt not exactly
am i the only one in this channel that didnt know crap about linux or electronics before emc'ing a machine?
unipolar was the correct awnser :)
I was looking at IGBT recently, neat stuff.
(not that i know anything about it now)
I thought everyone used Linux now.
monolithic chips will be using H bridges internaly (usally, unless driving unipolars)
clytle374 I think thats what i have in my stepper driver
i never even thought about linux till i built my machine last summer
BlackMoon nah there's just two fets
A major jump in technology, bigger than when mosfets came out.
aa-danimal-shop linux is fscking amazing ain't it?
aa-danimal-shop it never ceases to impress me
This is the first linux workstation I've kept. windows was better for that until the last couple of years
I've run Linux 24/7 since 1996
windows just annoys me
aa-danimal-shop, bicycles, linux and electronics and motors and brakes = cycling dynamo , or cycling trainer dynamic load
i like linux, but i cant use it on anything but the machines
lol tom3p, good idea
you've aleady messed with most of it
add linux multimedia and you got vr road trip
I've been looking at a nice wooden dynamo & windmill
aa-danimal-shop ther eare some application areas linux is still weak in compared to commercial platforms but it'll get there someday everywhere but games
oh man i get all kinds of ideas now that i know ladder
pfred1, i use solidworks and mastercam.... cant really use linux for that
snakes and ladder logic?
aa-danimal-shop like i tried the open source alternatives to the schematic capture stuff i use and it was a waste of time
aa-danimal-shop I didn't find either particularly usable
pfred1, i dont even know what that is
aa-danimal-shop the stuff i design my circuits in
solidworks and mastercam?
aa-danimal-shop: it's worth trying those with Wine. that's pretty effective these days
MattyMatt do you need a windows partition for wine to work?
aa-danimal-shop windows emulator
wine = linux's wrapper for win exe
would it work with netflix?
there's a list of tested apps at wine.org
the watch instantly doesnt work without silverlight
Danimal-office what does netflix give you?
for watching multimedia i use mplayer if mplayer can't play it it can't be played
but besides that, it only works with internet explorer
it needs some silverlight plugin
blender is the only CAM I can afford
i used mastercam and solidworks at work, hard to go backwards
gotta write some scripts
MattyMatt heh i ran blender once years ago I was able to make a sphere in the dark with it
MattyMatt and that was hard to do!
I'm OK with blender now. I can model, animate, and do the game engine
aa-danimal-shop so you need CAM or CAD?
aa-danimal-shop 57 search results for: CAD http://freshmeat.net/search?q=CAD&submit=Search
aa-danimal-shop 23 search results for: CAM http://freshmeat.net/search?q=CAM&submit=Search
CAD is the easy bit, it's all the extra stuff like designing constraints in mecanisms, and producing toolpaths that make CAM
i need both
is solidworks the french one?
I been hearing a lot about this stuff lately http://code.google.com/p/heekscnc/
i already have mastercam and solidworks
Danimal-office what'd they cost you?
e7000 is what I read on the SW site
but it does look good
MattyMatt yes a tad more than I'm willing to shell out for a casual hobby of mine
I think you can run it on 3 machines for 7kE
you can get it for about 4k
i have a friend that works for them
so i can get it cheaper
yes I'm sure much cheaper
subcontracted QA operative :)
the version i had at work was about 12k
thats insane to shell out for software
true, but try doing it otherwise
it's very impressive
complex parts i mean
you'll spend MUCH more in time
it could save far more than one man-year per year in any company that designs mechanisms
i had it for designing tooling
MattyMatt must be one of the reasons I do not find myself in the situation of being in a company designing mechanisms
I do. I made my machine without a plan :)
MattyMatt whenever i make something and don't plan it out it shows
actually I did plan it in blender, but I didn't stick to it
specifications cost cash money
MattyMatt I don't think that is how i plan
like i drew this all out before i made it: http://img294.imageshack.us/img294/2234/fenceside.jpg
it looks simple enough but things had to be specific sizes
holy crappers i just got a huge order
yea, a month's worth of $ :)
now you can afford fresh cutting oil
the cutting oil is brand new, i just put it in today!
try mGcodeGenerator for Blender, yoyo's got emc gcode outpout http://yoyo.ghost.pl/fb/?&tag=mGcodeGenerator&id=1168&subPage=detale
[04:17:31] <tom3p> http://www.youtube.com/watch?v=fl3om2mG5gA
the good part about that order is i already did about 20 pieces for them, and i got the process down pretty good
[04:17:58] <tom3p> http://wiki.linuxcnc.org/emcinfo.pl?action=browse&diff=1&id=GcodeGenerator
Danimal-office parts is parts pieces is pieces
yeah I've looked at that, but not tried it yet. I'll get familiar with gcode first
the bad news is it's made out of pvc, and i'll litterally have several garbage pails full of chips
Danimal-office why don't they just have it molded?
blender is just about to undergo a major revision. 2.5 is very different GUI and scripts
dont know, dont care! it's good work for me
oh no, dont chg the gui, or chg it it earth style, not new venusian vs old venusian
it's new venusian. you can still tell it's blender
cradek, i got a video for you, i'm going to upload it now
tom3p I hope blender changed because last tiem I tried it I couldn't make anything
ugh sounds like re-learn
aa-danimal-shop: just make a mold melt the chips and be done with it =)
'you just need 3 hands, one on the mouse, one on the keyboard, and the other holding the damn manual '
every minor revision broke all my scripts every time. the python API has been the most fluid part
2.5 has significant GUI changes. scripts integrate properly. you can make new control panels etc
so CAD & CAM functions can be integrated nicely
I liked povray
blender can still export to povray, although they like yafray better these days
yafray is integrated as a standard renderer
I'm just saying for making 3D stuff I could do beter with povray than I ever could with blender
I always said its my head in a blender when I ran that software
so I'm all for new gui being as i could never do anything with the old gui
it's better suited to organics than mechanics, or at least it's flexible that way. too flexible compared to a CAD
eek, look at those jaws!
I wouldn't have been able to model an elephant in solidworks :)
what surface speed is that? it looks fast
.05" a pass
heat treated 4340, 4" diameter
i could take more but the spindle belt slips alot
i need to do something about that
Danimal-office pulley or belt glazed?
cradek, got the resistor working on the lathe.... works pretty well.
yours has a tapered chuck mount, right?
pfred1, not sure
that's good for braking :-)
it came loose once
I unscrewed my chuck once while cutting in M4
i had to slow down the decel
(why does it keep cutting deeper and deeper?)
that was really dumb
cradek I've had mills slip in collets like that
I should have figured it out sooner...
hidsight is 20/20
cradek happens when I use routers sometimes too damned annoying
luckily I've never had anything move in my ER40s
i'm still getting a ferror at higher imp's in x. i'm going to change the belts and the brushes and go from there
seems like R8 machines have that problem more
R8 isn't a true taper
what's the trace look like if you trigger on ferror?
yea, r8's are horrible for slippage. i use an endmill holder on the bridgeport for heavy cuts
cradek, not sure, good question. it only ferrors in one direction (x positive)
i did, it looks better in x- than x+
* pfred1 is lost I must have walked in on this too late to understand the plot ....
not sure what would cause it to do that in one direction only
pfred1, my lathe gets a following error occasionally
motor brushes, tach brushes, broken gib, ...?
did you null the amp?
or sure, amp tuning
i doubt broken gib, it moves nice by hand
null the amp?
what do you mean looks better/worse
the error is higher for x+
set the analog offset so it doesn't tend to go one way
it jumps kinda high at the beginning of the move
ahh, the little pot on the amp?
then does it even out? it's just the start?
yeah one of the pots will be offset
evens out a little but it's still not great
if you make another one I'd like to see it
ok i'll try
eek, meanwhile, I'm going to bed
before you connect the amp to cnc, you short the velocity command to its refrence. this is telling the amp "sit still", if it doesnt, you need to adjust the amp's offset. NOW the amp is ready to take commands
tom3p, it may creep a little
if its not nulled, it will be biased +x or -X
but still doesnt explain why it didnt do it at all before and does it out of the blue now
sometimes it does it really bad, like you cant even move it slowly, and other times it does it only at like 100+ipm, or sometimes it doesnt do it at all
things on the edge fall off ;)
but even when it does it REALLY bad, it still moves fine in x-.
Danimal-office clean your pot
like it wont do 20ipm in x+, but it can do 200ipm in x-
tom3p, the ferror used to be great on that machine. like .0002" max
Danimal-office go to radio shack and ask them for a can of TV tuner cleaner
spray it on your hand, you want the stuff that vanishes, not the crap that leaves oil
i know i did move one of the pots once. not sure if it's the same amp
aerosol pot cleaner in a can what will they think of next?
but i'd look into the weirdo feedback... you got resolver to digital thingies?
well i gotta go get some dinner, thanks for the advice
tom3p supposeldy the goop it leaves behind lubricates the pot
the pico ones
i guess i can swap the x and z and see if it makes a difference
tom3p but i have had the stuff work wonders for me
ok adios, thanks!
tom3p i was gong to tell him to go to radio shack and ask for some pot cleaner ;)
pfred1, what works is a good test, i just used the kind i described and had good results ymmv
well I've had pots that have just worn out due to frictuin too and no amount of cleaning would bring them back
and bourns are the best
broken wire on wire wound?
nah the black whatever it is resistive element
seen the stuff just get all shot up
yeh the pointer bends/wears and its open, or arcs
all I'm saying is some pots are too gone to clean and it loks like mechanical wear leads to it which is why pube might not be such a bad thing
lube not pube!
spreay some of that there pube lube in there it'll be good as new!
a little dab'll do ya
there is nothing quite like a really good pot though in some circuits
[04:51:07] <pfred1> http://www.geofex.com/article_folders/potsecrets/potscret.htm
thats why audio pots are expensive
oh i have some AB and bourns pots that are superior
ole allen can crank out some good pots when they want to too
tom3p classic page
does look like he's added to it since the lasttime I checked it out
will it work? http://img18.imageshack.us/img18/8203/ppbbsch2.png
actually i see one thing I screwed up on it now
this ones better: http://img199.imageshack.us/img199/8203/ppbbsch2.png
bleh, I've got bad ram in the emc machine, or the 64MB hole is set wrong because the errors are all around 63.1MB
pfred1, isolate the gnds, it reads like both 5v gnds are commoned
tom3p they are I thought about it but figure ground is ground
tom3p its only for the switches the second power circuit
though i guess noise could come in on those wires like antennas
consider... the only thing common to the 2 circuits is light, there is no electrical connection
tom3p I was very up in the air about powering the second part wiht a different supply at all but figured if i blow out that side I have a lot of 78L05s to replace it with
must have 30 of the little buggers here
I have a lot less 7805TVs
and i have optos on my motor drivers had to put them there they ran like crap without them
on the step and dir inputs
I foundthat out when I ran two off the same 555 timer
what's the TV
I think its clipped tabs
its a package style
its a TO-220 variant
the plastic package has dimples on the side too
its like a TO-220 that went on a diet sort of
I saw some switching regs made up in 78xx to220 format, looked nifty, if not expensive.
atmega they were cheap so I bought 10
but i got a load of 78L05s I guess from where I worked
some style heat sink snaps on there
yeah I have a bag of screw on TO-220 heatsinks also work stuff
you know the black bent things with the 4 fins on each side?
seems like if you need a bigass heat sink for an LM78xx, you might be using the wrong thing.
on the left http://img683.imageshack.us/img683/6498/stepproto1.jpg
atmega if you want maximum power out of the device you need a lot of heatsink
you can drop 38V to 5V with a 7805. that's all heat that needs to be dissipated
at 1A that's 33W
MattyMatt yeah I'm only running my stuff off 23V partially for the drop reason
MattyMatt partially because that's the voltage i have at that kind of amps too
I seem to have fried pin2 on my mobo p-port.
atmega you needed my port protector!
I had an opto board in front originally, but it either didn't work, or my 7805 didn't work so well
disposable ports. got an AT slot? :)
nope, I have lots of isa p-port cards, and no isa slots.
AT is a trademark of IBM
they had PCI in ATs too
naah. they tried MDA with the PS/2
I have two microchannel boxes still running at work
and vesa logic who cna forget that?
not me. I still have a few cards but no working mobo
vesa logic sucked
do the diodes on the 7805s really do anything useful?
atmega protect the IC from when capacitors discharge
atmega that and i have thousands of them gotta use them up somehow!
but seriously nat semi recommends them for cap values over 25 uF
so use 10uF :)
you don't need them but they're added protection
do you mill/trace the boards?
no I'll hand solder this on perfboard
but it helps to have osmething to look at while I'm doing it
I've used that PNP bue stuff and ruined 2 toner cartriges in the process
I have a mini perfboard 7805/led/etc stuck on the side of my 24v PS, when it slips, it grounds to the case.
need another screw or some tape
atmega here's the power supply i use with my CNC stuff http://img713.imageshack.us/img713/2244/pict0579s.jpg
and here is it while I'm load testing it http://img196.imageshack.us/img196/6414/pict0576h.jpg
what's the input?
atmega in that tan box is a transformer I liberated from a PDP 11/34
atmega I serialed the two 13.5 lines it used for its 5 volt rails
never seen/heard of a 34
atmega wires coming out of it look to be about 12 gauge a PDP 11/34 stood about 7 feet tall
atmega lets just say it had quite an appetite for 5 volts
probably like 50 amps of appetite
sadly, I still have 3 pdp 11/73's running also... they use pretty normal PS's though
turned the one i scrapped into a rolling storage cabinet
and a lot of parts
ATX psu give 30+A of 5V these days
MattyMatt yeah that thats all it'll do
I can still get plenty of replacement parts for hte 11/73's, the microchannel boxes are a pain in the ass though
MattyMatt plus i hear using switching supplies with this CNC addsa more noise to the system
yeah I've heard that too
and it makes sense, when the step freq beats with the switching freq of the psu
and noise has been a big factor with stepper motors for me
most 'real' positioning stuff I use at work have linear power supplies
you'll still get mains hum, but machinists are probably all deaf at mains freq :)
I could hear VGA freq, which was annoying
modern psu are usually ~100khz
MattyMatt what are you a dog?
well I've never made a switching supply I've made a lot of linear ones though
I'm thinking switch mode, with a big tank capacitor, will do me
the one on my LCD screen is 18V 3.16A, but I need that
so I'm using an ATX supply for first tests
my motors are rated at 2 amps a piece but they don't draw that running
but that was the number I initially worked with in sizing my power supply
mine are 1A motors, and my driver only has 4 steps so they'll get 3.5/4 A
4 current levels, I mean
oh yeah I've seen those
I found to really get my motors to run their best i had to mess with the current setting a lot on my drivers
like it was pretty touchy
sure they'd run set higher or lower just not as well
and if the machine stuggles to move, I'll put 3.5/2 through, until the motors melt :)
I have 15 turn trim pot to set my current
really like i said my motors are rated at 2 amps but they run best at about 1
did you try various voltages too?
something I didn't see coming until I messed with it all
I'm sure with more they may run a bit faster
but I'm at 23 now and its max this power uspply will put out
no load I've spun the motors to 2500 RPM and I've had emc2 run them well wiht good power up to 460 RPM
like they reliably reverse don't stall have torque etc at 460
sure some people run faster I guess but I think for my porposes I can work with what I'm getting
10 tpi acme leads I can get 48 ipm out of my setup
I'm not massively confident that any of my 3 axes will move with my weeny motors
my motors are 124 oz/in I didn't want to get really big motors they're just harder to drive
yeah i went low end
single stack nema 23s
so yours are just about 2x the size of mine
probably the same size as mine, but modern magnets
mine are space age
you can see the motors I'm using in this picture: http://img64.imageshack.us/img64/1937/pict0713.jpg
ah well, mine were 10gbp for 4, plus shipping
MattyMatt I think i have motors like you have too
MattyMatt wire them up color to color then turn the shaft on one its neat
the one motor will mirror the other ones motions
super cheap stepper motor drive!
I'll upgrade to double stack 4A if these do nothing
60s work but you have to be careful about the mechanics
they'll outlast the machine probably, but I'm hooked now. if mk1 fails, I'll go straight onto mk2
my mechanics are primitive. M8 thread on 2 axes
and the 3rd is ballscrew but 10mm pitch which doesn't give much gearing help
and all the slides are shelf slides
I'm going to go skate bearing
[06:26:30] <Jymmm> http://sfbay.craigslist.org/sby/tls/1638638183.html
I've done that, but it's wrong to use radial bearings for axial thrust
but they are cheap and rel=placable if they do wear out
MattyMatt you did the skate bearings on angles at an angle?
ah no, I just used them for the leadscrew bearing
the slides are all ballrace shelf slides
which need to be used in sets of at least 3 at angles to stop flex
MattyMatt his setup looks pretty plausible to me
alu angle cost more than the slides I used
He's cutting/drilling on his carpeted floor?! *sigh*
Jymmm heh with the kid screaming in the background its classic
nmen is now known as numen
until I realised I needed more than one pair per axis, then the cost advantage shrinks
I can't tell, is he tapping with 1/4-20??? It looks larger than that
MattyMatt roller skate bearings are pretty cheap
you can buy them in like 30 packs
say $10 for 30
there were 16 in my pack, presumable that's a full set
for a 2 legged skater
well I won't be buying competition grade bearings I doubt
you need 36 for a reprap mendel
that's all 608-against-shafts
I can't say as the reprap project impresses me very much
their motor drivers look problematic at best
I think it's pretty neat. I'll put an extruder on mine sometime
and extrude-only machine can get away with similar drivers to a printer. no actual work is done
nema 17 or nema 14
14s are normal, some parts need hacking to mount a 17
belt drive, for speed
pfred1: The kid sounds like 2-4yo... I bet he loves to inhale all that MDF dust into his lil lungs
Jymmm whatever doesn't kill you makes you stronger!
no mdf in MY machine
Kill the dumbass, the kid is just a victim.
MattyMatt why not?
plywood is my only concession. they key parts are oak
mdf is actually more stable
Nothing wrong with MDF... as a sacrificial top
I can use soft fibreboard for that. then I can use thumbtacks for mounting :)
lets mill some cardboard
MattyMatt: You dont want to do that
yeah :) I know
my whole top is sacrificial anyway, being plywood
as long as I don't hit the nuts that hold it to the slides
I'll use mdf for a smooth bed for milling pcb, so I can mill it perfectly flat to the XY plane
I'd think that if milling PCBs made any sense at all it'd be a process done in the industry
darkrooms are scarcer now. I can't walk 100 yds and buy developing trays and safelights anymore
pfred1: no plated holes is probably why, but there are specific machines for doing just that.
pcbs started in photography's golden age
that is why I'm going to make my CNC machine put the resist directly onto the board
Jymmm seems the industry favors chemical etching to me
Jymmm though they'll drill them out with CNC
chemical etching is fast and cheap
so its not like they've never heard of the stuff
once you've got the equipment
and i think gives better results too
I know a lot of people mill PCBs but then again a lot of people do all sorts of stuff I tend to avoid
I always had problems with cracks in the resist, so I had to tin everything
I'd think with PCB milling one has to contend wiht a lot of shorts from copper frays
either way you need to inspect it carefully, unless you have a nicely tuned commercial system
and even then I bet you need to put 1 in 100 under a microscope to keep it tuned
too long in the etchant, and it eats tracks away underneath from the edges
heh there's tricks to getting a good etch
so age, strength & temp of etchant are all critical, just like developing a photo
run hot and run air through the tank
yeah i took temp out of the equation by running a heated tank
I liked it around 110F
and air makes a huge difference
get a board in like 2 minutes or less
I heard ferric chloride is old-fashioned now
[07:07:28] <Jymmm> http://www.lpkfusa.com/protomat/h100-view.htm
illegally dangerous even
all ferric chloride is is rust
[07:08:20] <pfred1> http://img97.imageshack.us/img97/7184/etch1.jpg
pfred1: 100K RPM spindle - sounds like a jet engine
it's getting hard to buy any chemicals that aren't 5% nonionic surfactants + coloring
Jymmm that would help
next time I etch I'm going to try muratic acid and peroxide
can't even buy peroxide easily now
MattyMatt they have it at drug stores
not here, the London bombs were concentrated hair bleach. they bought 20 gallons on 3% and boiled it down
a people that gives up liberty for security deserves neither
but he guy who said that wasn't british
Europe called me a citizen when UK still called me a subject :)
my new passport says British Citizen, but that's just window dressing
MattyMatt the police can't do their job so everyone else has to suffer sounds fair to me!
I'll stand for parliment on a platform of A Small Boy's Right To Do Chemistry In Momma's Kitchen
well when i got the muratic acid they did have ot go into the back room to get it for me
they said they couldn't keep it out on theshelves anymore
but i "looked OK"
they moan that chemicals are available, but then moan that there's no chemistry teachers for schools anymore
I think I'm beginning to see a pattern
some people just moan a lot
bloody governments, there should be a No Thank You box on the ballot
well I'm all about chemicals: http://img15.imageshack.us/img15/5069/cleanresist1.jpg
you can get that, in small tins labelled as cellulose thinner
heck we can buy it in 55 gallon drums here
I buy it by the gallon and fill up my little can pours easier
it's like the CFC scare. freeze spray was still available but in smaller cans at 4x the price
I don't know what life would be like without acetone
poverty is then the means of controlling behaviour
and now the banks have gone, they'll start moaning that there's no small manufacturing
well pretty soon we'll all have atomic assemblers on our desktops what will the government do then?
ensure they are too expensive to run
the central banks are going to introduce a new reserve currency to replace the USD, that is the plan
nah we'll open source it so you cna dump in poo
the future is here it is just not evenly distributed yet.
it's all on one planet, that's the big problem
7 billion people all saying This Is MY Planet
well the central bankers are claiming it's theirs and getting it so far
lol at replacing the USD
Heinlein was right, we need a new wild frontier
do they really think they can just drop there multi trillion dollar debt through creative accounting?
China will accept Hawaii & Korea
they can have korea
Pay the politicians $1/yr + a percentage of the revenue they generate
Blackmoon : not at all, that is why the central banks have been setting it up to fail
bet ya the Us can be in the black in no time
Jymmm: sure if you want 0 services :)
Hey, the USPS does NOT use tax dollars, they generate their own revenue
'Ok first cuts are in.. we cut.. 99.99% to.. everything. Schools will now be replaced by educational comic books sold with $0.05 gum because thats all we can afford'
BlackMoon I'm getting no services i don't pay for already
BlackMoon: I didnt say CUTS, I said revenue
Jymmm: And thats how they will generate the revenue :P
BlackMoon: then they wont get paid
US can be self sufficient in everything except pokemon
to bad you arnt the one making the pay rules
And they just keep voting themselfs bigger and bigger raises
wonder if there are any people that know about fanuc stuff here
out of my league, this season
I suppose you'll need a master co-ordinator system for a setup with multiple robots. running a whole assembly line on one emc2 probably isn't clever
nmen is now known as numen
i dont have robots. i have 2 mills with old fanuc controls. 5m and 3000c
PCW_ is now known as PCW
PCW_ is now known as PCW
MattyMatt: what about making classicladder wait for input from something
MattyMatt: and pause at sync point
is that in reply to "can't run a whole factory of one emc2"?
I hate OOP in code. Event driven machine processes will screw up in just as interesting ways :)
that's as crazy as letting humans drive cars on a road
just like in java, every now and then you need to garbage collect the accidents
dammit. fixed my ram but still not booting, even tho cd integrity check says OK now
different mobo time
meh I should probley do some milling
allready roughed it in... love my corncob endmill
was doing 0.3" DOC 0.1" WOC at 300rpm's (slow!) at 3/4" diamiter rougher endmill in mild steel at like 8FPM and it just chewed through it like nothing
good morning piasdom
little bit of hammering could be seen in the table movement heh, should try more WOC someday.
everything stayed pertty cool too, minimal coolant smoking and the chips where not too hot.
gah why is machine screws so god damn expensive :(
though I noticed some where magnetic and started getting recut beween the top of my vise jaws and the bottom of the endmill -_-
ok its like a couple of sek each but :P
it adds up when you need a couple =)
MrSunshine: buy 100packs
they are much cheaper then buying indivual ones
like 1/5th as much sometimes
(find a real industral supplyer localy)
I got 1000 M5 nuts, because it was 2x the price of 100
for like big bolts they will sell you indivual ones, but for small bolts and nuts and washers they will sell by the 100 or pound at a very cheap rate
MattyMatt: exactly, the smaller the item the more it makes sense to buy more of
and if you ever use 200 M5 nuts in the rest of your life, well your ahead
Or if you really where thrifty, ebay half em and get your money back.
I've been considering some kits
reprap mendel needs 104 M8 nuts :)
they allways seem overpriced unless you buy some lame ass grade negative 5 chinese kid
On the plus side, some of those kits come with exoticly thin washers :P
Great when you need a shim of a few dozen mills
all my shims smell of beans
I have some genuine brass shim material in a kit in sheets
all nice and shiny and perfict
Someday i'll use it, honest
make a micromill
I allready have a mill
[10:42:02] <BlackMoon> https://www.machinetoolswarehouse.com/xcart/product.php?productid=16133&cat=252&bestseller=Y
It could eat a micromill for breakfast
can it make watch parts?
Might wanna slap a high speed spindle on there but whatever.
ah 'micromill' is bigger than I was thinking
micromills are like, 12" by 4" by 6" xyz travel or something
not bad but you'll really wish you had more :)
IH mill is 30" x 12" x 19" xyz :)
something no bigger than 6" in any dimension, with a 1" cube working space, and a 1mm collet
mine is 16x14x8, even though it's plywood
smaller than I was aiming for, now it'll struggle to do guitar bodies
you do know that most small tools come in larger shanks like 1/8" 3/16" or even 1/4" or 3/8"
its the high RPM's you really need for small tools thats the pain
those piezo motors look neat
[10:50:31] <MattyMatt> http://www.newscaletech.com/squiggle_overview.html
yea saw those before, very cool
consider 3000rpm at 1/8"
is only 100sfm
so about the right speed for mild steel but slow for everything softer
praticaly talking requiring a 10,000~30,000rpm router for a spindle if you play with small endmills < 1/4"
the smaller the spindle, the less problem of high rpm. you are stuck with low inertia tho
yea, hence why the strap on router is a popular option :)
my cheapo dremel claims 35krpm
yea but the bearings won't handle serious sideload
easily changed when they start to slop
I think the noise it makes over ~20k is unbalance or wonky spindle
I did say it was cheap
well iv heard of people doing it.. moreso for toolpost grinders then milling though
the router seems perfered however
some even have softstart and real feedback to keep constant RPM and such
and readily available if it explodes again. I've already soldered a dry joint and I haven't started milling yet
with a really small machine, you could have a fixed cutting point and move the work fast enough to get your cutting speed
I think we call those shapers
And oddly enough, its usally the big mills that go the fastest
slow rapids on a big mill is lame
there's the cube/square thing with the motors
I wish I could afford a couple of dozen squiggle motors to make some mini robots
ah it'd make the brain size problem worse. I already need to make a bigger head for my robosapien
just learn SMD :)
I'll need that anyway
and thin PCBs, to save weight
I think RS might walk better with a slightly heavier head tho
it walks by swinging it's upper body left and right as the feet shuffle forwards and backwards
I'll give little pinnochio some knees one day
proper bipedal walking doesn't seem like such a hard challenge these days with MEMS gyro and accel
asimo needs some fast twitch muscles. solenoids to supplement the motors when running
it runs like an old man
no calves or buttocks
it'll never play professional soccer with those legs
I think the 'fast twitch muscels' are the problem
just wait till he gets fast twitch cramps
MattyMatt: flexible PCB's .. even more weight saved
flexipcbs twist my little mind
PCW_ is now known as PCW
check out the gearbox http://www.robowars.org/forum/viewtopic.php?p=60655#60655
it'd probably even make archivist cry
ok who's using windows 7 ;-P
probably the forum guys then lol
just watching the logs
I want to reboot the machine but everybody is looking at it now
Valen: I am
its weird, it reports itself as windows 6.1
well windows NT 6.1
hm.. windows 2000 was nt 5 so it's not too weird
yeah but why call it windows 7 if its version is 6.1
why not call it windows 6
and xp was 5.10....
release name vs build number.. I guess
in axis...can i round the number from 2 places to 3 ?
round from 2 to 3?
usually it's the other way around..
Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-03-11.txt
* JT-Hardinge reads the man pages to see if this can be solved by reading the documentation :)
yep pretty straight foward
* JT-Hardinge thinks that if you have a turret type tool changer you leave the tool-prep-loop in as you can't prep a tool on a turret
seb__ is now known as sebjames
i mean to round the digits after the decimal place
right now it reads 3.47", i would like 3.475" ..... Thanks
while you could make that change (but only by editing axis.py) it might be deceptive because the preview doesn't really have that much precision in all cases
I mean you could make it show more numbers, sure -- but I don't know if you should trust them.
I'm curious what is your use-case where this is needed?
cradek; thanks that's what i needed
cradek; sometime i adjust the setting a few thousands to get closer to my finish part and i wanted to see if it actually did move :)
some time recutting at the measurement doesn't take any more off
cradek; Thanks again
JT-Hardinge, do you have a link to the belt you got for the hardinge? i wanna see if ours are the same.
how's the lathe coming
did you try to decipher my mess of a ladder?
I could not open it up the file was corrupted
both my X and Z use the same belt
they all had a number prefix on each line too
[16:08:06] <Danimal-office> http://pastebin.com/CykATZZv
for some reason it wasnt letting me copy the file
not sure why
that worked for the hal file
anyone have a clue why it wont let me copy my config files onto a flash drive?
hey there it goes! the folder i was trying to save it in was effed up
JT-Hardinge, sent it to the jt.plasma addy
good evening from germany
is ther a page that lists the options for the parallelportsettings ? those that are behind the arrow to the right
danimal do jou have a real cnc shop?
define real lol
i have a couple real cnc machines
online shop ? i got 12CNC and 4 at home HOMEMADE
huh. that's cheap
[16:49:54] <aa-danimal-shop> http://homebrewedcomponents.wordpress.com/
pictures of my shop
12 machines? nice
but compared to the Asus, it has no optical drive, a slower single-core CPU, half the disk space, and half the memory
so it makes sense that it would be half the price ;)
and no pci slot?
[16:51:51] <sealive> http://www.sammellothar.de/X_rahmen.mpg
-> here is the new mini-CNC
it's not that kind of PC :)
aa-danimal-shop: how old is the lathe
the red one? about 100 years old
the grey cnc one is 32 years old
and all on EMC
the big mill and the grey lathe
so what do you do with thease
i bild scale modells for FUN
i make bicycle parts
crosscountry is here where i life popular
yea, mine are for cross country single speed mountain bikes
near RAMSTEIN AFB Germany 50000 American Solders in the Region 250 in town
we have 1250 KM of markt bicicle Way's from 5 to 250KM here From Black Profession to Green with Cild-trailer
and every (at least) 25KM a Support station or even a Railroadstation to move in or out of the track
you may now UDO BÖLTS
yea, i might have heard of them
7 times Tour De france Finisher
ok lets talk about EMC !
i got a Driver that suports SLEEP and Boost
the Parallelport settings does not give me anithing like that
assuming you have pins, is there any real benefit to separate +/- limit and home switches? If you had to share some due to pins, is it preferable to share all homes, combine home/limit, etc?
separating the limit switches lets EMC know which end it's hit
shouldnt it know anyway depensing on the dir?
yeah, but if it is moving -, shouldn't it only hit the neg limit?
I'd say it's best to combine -limit with home, and have a separate input for _limit
well, if everything is working properly, sure
but if everything is working properly, you won't hit a limit switch
if you combine home and -limit, the switch needs to trip some amount before it hits a hard stop? Is that calculable?
the softwar does regenice it if the Programm is loadet if you can reatch this pont ,I'am right?
it's probably more or less calculable, but it's also "experimentable"
yeah, I just wanted an idea of how close the experiment had to be.
[17:13:21] <sealive> http://www.sammellothar.de/X_rahmen.mpg
did someone see my animation
sealive, I think you asked if EMC2 will detect when a program will exceed limits - the answer is yes
atmega, it depends on how hard the stop is, I guess :)
Thank You SWPadnos
or how big the motor is, or what breaks first.
you can calculate the software stopping distance by using D=1/2at^2 or whatever the distance/accel formula is
I got a cheap 3 axis driver board, it has two jumper settings for low and high current. High doesn't seem to do anything, any suggestions (with such limited information)?
if you have servos, you'd want to leave more room - having an encoder fail and the drive pump full power into the motor will have a different stopping distance than a controlled stop
limit switches are generally used to physically cut off motor power actually (in hardware) - they're considered an E-Stop condition
is ther a page that lists the options for the parallelportsettings ? those that are behind the arrow to the right
the soft limits should be slightly inside the hard limits, so that EMC can stop the motor from full speed before hitting the hard limit
no servos here... lots of compumotor stuff at work, it pretty much always stops immediately on a failed encoder/resolver
the hard limit should be far enough from the end stop so that the machine will stop using whatever hardware stopping method you have
high end servo drives can apply 8-10 times normal torque for e-stop conditions
(that's a setting in my Yaskawa drives, defaults to 800%)
what is 'behind the arrow on the right'?
the setting for eatch pin
i'am gewrman and need to find out if ther is somthing in english that shows me what this means
what arrow are you referring to?
[17:26:25] <sealive> http://www.linuxcnc.org/docview/html//config_stepconf.html#sub:Parallel-Port-Setup
behind eatch pin is a list this list i mean
sealive, you can use other functions for SLEEP and BOOST - it depends on what they do and when you want those things to happen
they are diferent from input to output as they shoudt be
yes. there are no SLEEP or BOOST functions, you have to decide when (or if) you want those features enabled on your driver, and then either select an existing function (like "Amplifier Enable"), or add some HAL commands to your custom.hal file
the sleep shoudt happen if the driver is on but the Axis are not moving to reduse the Amp's from the Driver
there is no function for that in EMC2
you can get something like that to work, but it won't be able to bring the driver out of sleep until a step actually occurs, which could be too late
nmen is now known as numen
(you would need to do some custom HAL stuff, with timers and one-shots, to get that to work)
ok then forget ist more cooling to the driver
good plan :)
there are two "on" states in emc2 - one is "estop reset" or "machine off", the other is "machine on"
it might make sense to have "machine off" put the driver into sleep mode. you would manually do that with F2
just get used to hitting F2 when the machine will be sitting for a while, but not moving motors around
i got a anexpected real time dalay
interesting. not related to signal connections, but it might tell you that the PC you're using isn't good for software step generation
does this mean i lost some steps
the error doesn't say that. what it means is that there was a time when the periodic interrupt was a bit late (or early)
I think the test checks for >10% variation, which might be more strict than necessary
is the "machine off" connectet to M02 M30 M00 M5 ?
no, I think it's only F2 or some other user interface command
ok it works
the picture of the Start Home page from linuxcnc shows a bunny in milling is this prog at the sample folder ?
that's no bunny!
it should be Tux, the Linux penguin :)
i git it
i got it
got to get a light source its dark now cant see the keys
-5Deg Celsius no Cloud light snow on the ground
so thats ok what is the Blue screen of the Homepage
tkemc, another GUI
one more Quest !then i got to go. what if the programm is in Inch G71 and the mashine is in Metric G70 does EMC calculate this ?
yes, machine units and program units can be different
SWPadnos: Thank you
you mean g20/g21
in fact, it should be possible to have inch screws on some axes, and mm ones on others - that setting is per axis
no i mean the program ,it seams fore me that the pinguine is in Inch
it's not a problem to use G20 or G21 on any EMC2 machine, regardless of the machine default units
you can mix and match in a single program if you want
SWPadnos, you're so smart! hard to believe you're from VT!
you must not be a native, otherwise you'd be on the #cheese or #syrup channels instead
does it count as native if we moved here before I turned 2?
if not, I'm a North Carolinian
hmm syrup sandwich
depends...it depends on if your mother drank VT water while she was pregnant.
we ought to tap the maple trees in the back yard
aa-danimal-shop must be from one if the 'superior states'
SWPadnos, amazingly, we've never done that
clytle374, i'm only teasing. my state gets it the worst, so i gotta dish it out when i can
we had tons of maples in the backyard when i lived in CT
I thought my state got it the worst, WV
no, i believe CA takes the cake
with the Governator and all
well, CA does ask for a lot of it.
north or south?
south. San Diego
i think as soon as property values come back up, i'm going to colorado
buy be a bit of land
I spend a few weeks there.
By till the next time :D
yep, machine shop for the school, sits on a cliff next to a hang gliding park
lots of cliffs here
best part about the place
clytle374: a hang gliding park? what state?
I think it was UCLA marine biology dept
oh sorry, ready up. i know all the ones in new england and NY but alas not that far south
ucla isnt san diego
it's los angeles
aa-danimal-shop, just little mounds compared to here.
how tall are your average mountains?
there is a remote division, it was SD
higest peak is 3400'
hahaha thats not even a speed bump
The cliff was ocean front, very cool place for a shop.
average out here is about 4,000-6,000
but i believe we have over 14,000
That's all further inland?
not at all
I don't remember any massive hills.
they dont look massive because they're's so many of them
california's highest point is 14,494'
oh, feet wuuuh
didn't notice '
which is the highest point in the continental US
I spend the whole time near the shore due to the traffic, I remember rolling hills and some mountains near buy, but no steep terrain.
san diego is pretty big
palomar mountain is pretty high, i think 7k feet and thats in SD
lets put it this way, you could built SD here. our mountains are like this?/\/\/\/\/\/
we still win
our state: http://geology.com/state-map/california.shtml
no way you can say you have more mountains
i've got a problem with emc, everything except G2/G3 moves works OK. If I use G3, nothing happens, CNC stops moving
could it be mathfuns related?
dupal: when you open an nc file in axis, does it show the arc displayed properlly?
im betting your mathz are wrong
g0 x0 y0 z0 / g2 x2 r1
jackc: axis interface freezes after runing g2
jackc: math is in rtai modules? i've tried 3 emc versions and nothing helped
Man, I'd beat that bastard with a bottle of laundry detergent if that's all I could get my hands on at the time!
i think she can probably sue walmart since it happened on their property
probably. Worth trying at least.
dupal, do you get any sort of message?
Ram him with a shopping cart
"store security" is actually "loss prevention", not security
SWPadnos: no messages, just freezes, dmesg doesn't show anything suspicious
dupal, ok, and does the AXIS preview show arcs correctly?
It's Texas! What, nobody had a gun to shoot the SOB?!
SWPadnos, no arcs there
dupal, are you using MDI or loading a G-code program?
SWPadnos, i've done jpeg->g-code conversion, but neither mdi work
aa-danimal-shop, bigger isn't always better.
when you start EMC2, it should show a "logo" that says "EMC2 Axis", does that display correctly?
SWPadnos, axis works perfect on other g-codes, linear moves are ok
that doesn't answer my question :)
SWPadnos, sry :) EMC2 Axis is shown perfect and runs with no problem
ok. I'm pretty sure that code uses some arcs
clytle374, keep telling yourself that lol
"it's not the size of the mountain, but the motion of the ocean"
oh wait you dont have oceans either lol
SWPadnos, EMC2 AXIS uses just linear moves - G1
i miss the east coast landscape
trees and greeness
dupal, huh, so it does. nevermind answering that question :)
I live as far east as you can get (here anyway), it's flat, pine trees and live oaks
I'll take the rugged Appalachian mountains any day, traveled for a few years and picked this spot. To each their own.
this is where I was at.
dupal, load tort.ngc and see if the preview shows any arcs :)
coastal north carolina (wilmington)
SWPadnos, :) ok, i'll try to to solve it later, but i have also one problem :) 2.3.5 sources from sourceforge.net seems to be corrupted, am I right?
So it wasn't SD proper
SWPadnos, ok, will try tort.ngc
the project is no longer hosted at sourceforge, so I wouldn't be surprised if the sources there are crap
source is at git.linuxcnc.org
atmega, what about the smokeys?
you shouldn't need to compile for yourself - if you're doing that, try using the liveCD instead. that will tell you if (somehow) your PC can't do arcs
(which would be very surprising, but who knows)
clytle374, yea, thats a relatively flat area of SD. i live in northern inland SD
i'm in a valley surrounded by approx 3,000 foot hils
SWPadnos, tort.ngc same problem, freezes
ok. are you running an OS that prevents you from using the pre-built EMC2 packages?
SWPadnos, yep, liveCD worked, so I think problem is in realtime modules
ok, if you compiled it yourself, I'd fix whatever you did wrong and try again ;)
SWPadnos, ok, will try again, thanks for helping, bye
how can arcs not work??
there could be a floating point setting in RTAI that needs to change
but I don't see how, since lines use floating point in the RT kernel modules as well
it's definetely not PC
SWPadnos, may i use RTAI or different patch?
the only difference is that the arc functions can use trig functions, and there's no RT kernel trig library
but every x86 has trig functions, so ...
there was RTLinux support, but it hasn't been maintained
SWPadnos, ok, thanks a lot, have 2 go
if you'd like to contribute an ADEOS or POSIX-style RTAPI layer, please do :)
ok, good luck
SWPadnos: I'm regularely uploading the sources to SF at each release
ok, good to know
[19:15:27] <alex_joni> http://sourceforge.net/projects/emc/files/
hmm.. judging by size, the 2.3.5 source is definately foobar
58a5c942413f1f0431207dee0de9f14c -> new file
matches the file at http://linuxcnc.org/hardy/dists/hardy/emc2.3/source/emc2_2.3.5.tar.gz
robh_ is now known as Guest13218
lol why would you change your name to guest?
Guest13218 is now known as robh__
for laughs probably
for poops and grins?
not logging in and using a registered nick causes it
nmen is now known as numen
smokies are 8 hours away
nmen is now known as numen
nmen is now known as numen
is 64MB enough to boot LiveCD? that's the only common factor between these 2 machines
or at least, very likely nope
you may be able to edit the grub boot line to contain "single", which will give you a nice shell (and no networking)
or maybe there will be networking, I don't recall
I may be forced to put the 64MB in momma's machine :)
or at least take a 128, leaving a 256
and while I'm there, grap my mga400 back and give her this POS 8MB S3 thing
you can get the whole system into runlevel 3 with 64meg (ie networking and such)
but not RL5, which is X
definitely swap the video cards
is that a real G400?
or a G450
real 400. dual head max
those have an actual hardware scaler, so they were great for outputting video to analog monitors :)
the most expensive card I ever bought
yep. I had one in a work PC, I had a G450 in this machine (since upgraded to a Parhelia)
this 9500GT with 1GB was 1/3 the price
I just got a GT240 with 1GB, passively cooled, for $95
that's one of the ones with full VDPAU acceleration
if it's ddr2, then that's my card rebranded
GDDR5 or something
it even uses so little power that it doesn't need a separate power connection!
yeah I think mine in GT2x5 now, I forget exactly
mine has a fan, but the whole machine is silent compared to all my others
heh. I've been looking for a quiet PC, which also has as little means of ingress as possible
for my mother, who has several cats, and for whom I do not want to be doing service calls all the time
I've got a toploading dvd drive here
easy cleaning :)
not when it's clogged with cat hair
I'll probably wait until summer to open up her old computer (so I can do it outside)
she should get a good performance boost - going from a Pentium 66 or so to something that'll be fast by todays standards
P66 will run fanless
SWPadnos: mounts to the back of LCD
yeah, I saw that earlier
the EEEBox 1501 does too
but it has a DVD drive (soon to be Blu-Ray)
it's twice the computer (dual core, twice the RAM and storage), has ION graphics, and has a DVD drive, for about twice the price
so it's about what I expect :)
BD still adds $300 to the price, iirc
$100-$150 these days
or $220 if you have to buy the Sony slimline to put into a laptop ...
i_tarzan is now known as the_Lamb
get her a PS3 and install a browser
I've thought about it - Linux on a PS3 would be almost as good as a real PC with a stompin video card for GPGPU
but she isn't a normal user
she will be doing massive mathematics stuff, not posting photos on facebook
[21:48:38] <Jymmm> http://sfbay.craigslist.org/sby/tls/1639606822.html
the posh maths programs will become gpu aware in time
she'll be writing them, so it'll be "whenever she gets around to it"
nmen is now known as numen
if she uses e.g. a matrix multiply lib, the gpu upgrade will be done for her
she may use the Boost libraries, but I've steered her in the direction of CUDA and CL
I don't know of any "automatic" GPU-using math libraries other than CUDA or CL
the higher level ones like matlab & mathematica are surely being worked on by now
there's an add-on for Matlab that's quite expensive
I don't think it works with Octave
I'm sure the jump to a 6 or 12 core 3GHz or so CPU, 16 GB RAM, Fermi video card, and 1TB or more of hard disk space will seem kind of snappy for her :)
AMD are running a compo with 4x12 mobo+cpu as prize
I saw that
they want an essay or vid on "how you'll do good things for the world" with it :)
yep. "I'll give it to my mother and see what she does with it
Valen, those were big gears :)
to drive a robot around with?
how would you make them? shaper I guess
the pinions can be hobbed and the wheels pressed on
can then hob the wheel after mounting on the pinion
heh "Step resolution: 46,875 hz"
robh_ is now known as Guest59299
Guest59299 is now known as robh__
Yipee! 7I49 resolver resolution ~13 bits with no filtering
This is interesting classic ladder uses =! for not equal :/
yea, it took me 30 minutes to figure that out
sure doesn't scan right
Are resolvers common now days? Sorry, I don't see new equipment around here.
common in old machines, but not new
you can still get drives and servos with resolvers
JT-Hardinge: are you sure it isn't like = (! expression)
we replaced one on a machine last year
cradek: could be :)
I'd sure expect !=
we use resolvers on all servos
or you could always use -[...=...]------(/)-
cradek: that works too
that is what I expected too
only very old ones (DC's) were motor+tach and encoder for feedback
BF I presume
alex_joni: for electrical noise
JT-Hardinge: you use it both for motor control, and position control
they are also absolute inside one rotation
so lots of advantages
Reslovers are also used where tough environments or wide temperature range preclude use of optical encoders
and they provide a vector to drive the radar screen
the absolute inside one rotation makes homing unnecessary
funny thing it will accept != but it does not compare correctly
that's what I said
JT-Hardinge, , how's it going?
alex_joni, how to you acquire the number of revolutions on startup
Useful on brushless for commutation
good been lumberjacking this afternoon
clytle374: the number of revolutions gets stored in a flash in the servo
PCW, I can see the advantage there.
also the shaft position
give up on my ladder? lol
alex_joni, oh, okay
on startup the shaft position is compared, if it doesn't match the position is compromised, and you need to home
aa-danimal-shop: did you figure out if the belts are the same?
if it matches, then you have the shaft position and number of rotations, so you're set
i couldnt find any info on your belt, like the pitch and # of teeth
it's a Hardinge number
alex_joni, what breed of servos are you using?
with their name on it