same in apt
the part and code are here: http://jmkasunich.com/cgi-bin/blosxom/shoptask/fusee-1.html
looks like Galesburg is due north of me here in Poplar Bluff
almost due west for me in Cleveland OH
want a sample of source posted to channel??
Jon Elson comes from St. Louis, dunno if that is closer or farther than Poplar Bluff
jmkasunich: was that for some rat trap powered engineering contest?
looking at apt is on my "one of these days" list, not real soon though - too many irons in the fire
he is 3 hours closer
$$rough the outside in steps
sp=10000 $$your max spindle rpm
for me its 9ish hours
jmkasunich: did you win? and were you the only one with a variable pitch screw?
fedrat/(.002*sp)$$.001 chipload x 2fl =.002
ds2: no, and yes
$$decide how much to increment each roughing step-
$$ depth you can take will depend on how much
$$chatter you get.
$$ equals number of steps
$$lets do one more at the bottom, -.015:
variable pitch screw? explain please??
did you see the pic on my webpage? (worth 1000 words)
[00:04:34] <jmkasunich_> http://jmkasunich.com/cgi-bin/blosxom/shoptask/fusee-1.html
yes i seen that... i was wondering on the logic??
are you mapping an acceleration curv in particular??
no particular curve
just "start out in low gear, then upshift"
I used three diameter steps - three "gears", then blended them
yes... but what about when the cut is longer than your spool
the main thing was to change diameter, but I changed pitch too, since I needed deep (coarse) grooves at the fat end and on the transitions, but needed finer pitch on the skinny end to fit more turns in
not sure I understand you? cut is longer than spool?
where does your line work it way back to maintain speeb
when it hits the small end of the spool, its done - the rat trap is closed and there's nothing left in the spring
it only had to travel 50 feet
something like 55-60 revs of the wheel - the wire unwinds after about 35-40 turns, and it coasts the rest of the way
how far did it go
ah i see... application specific spool... nice barrel cam on a string...
unfortunately, it only went about 40 feet - it was being steered (radio control) by my project partner, who managed to run it into the wall
in test runs it did very nicely - as fast or faster than most of the competition
did he get stage fright?
there is another post about the contest with pics of the competitors a little farther down the page
no, he got backwards
it came at him
i hate when that happens
ahh I use to look over my sholder when that happed]
he was fine while it was coming at him - in practice he backed up to keep it that way, but during the real run, he stood there and turned - now its going away from him, and the steering is reversed
I told him he should have run it from behind, but he felt more comfortable the other way
I was annoyed
oh... 2ndary brain cramp
no, just stopped
it takes a lot of practice, you needed someone that flys model airplanes
or model helicopters, nose in hover is fun to learn
yes... or ALOT or cars
or as we say in english, flies
we were hoping to do autonomous control (there was a points bonus for that), but we ran out of time
emc controled i hope??
no, I had a little AVR micro I wanted to use
a little hal-foo should do it
I did use HAL for a previous year's project - we had a laptop riding on the vehicle
but rat-trap power needs something much lighter than a laptop
ok I fingered out the hal_input snafu
I should re-write my fatigue machine software in hal
eric_U: if it works why fix it?
it's not going to work forever
fatigue machine software ???
I wonder if you could do better by using the rat trap to catapult you to the destination instead of using wheels
jmk where do you stay in Galesburg?
there was a rule that the vehicle had to stay in one piece
that is doable
BigJohnT: I stayed at the Econo Inn twice, and a different place last year
going here is to avoid friction of the line and the wheel
there are definitely no 5-star hotels in Galesburg, but as long as there is a bed and a shower I'm happy
yea, all I need is a corner to curl up in
ds2: we also had to do several things during the run - swerve right to pop a balloon, then left to pick up three washers, then right again for another balloon, then back to center to stop on a target
the crash happened when trying to pop the 2nd balloon
as the dates for the CNC workshop get closer, there will be a page on the website with links to local hotels and such
Oh though it was a simple race
ok, thanks John
last year we stayed at a place right in the center of town
trains go by all night ;-(
not much fun but I could sleep through it
this year I might go back to the econo inn, dunno yet
so the Econo Inn is a bit away from the railroad tracks?
usually a group of us stay at the same place - convenient for eating breakfast, etc
yeah, its a little north of "downtown"
whoever picked the noisy place must buy breakfast
galesburg is only about a mile and a half wide, maybe two
[00:25:18] <jmkasunich_> http://maps.google.com/maps?f=q&hl=en&geocode=&q=galesburg+IL&ie=UTF8&ll=40.948788,-90.368814&spn=0.042981,0.102396&z=14
last years place was on the traffic circle, which is the center of town
note the tracks just above
the Econo In is on N Henderson
takes a while to download I'm on dial up
the actual CNC workshop is about 5 miles west of town, on W. Main street
i stayed at a campground, it had hot showers, by end of the fest, a lot of people went there just for that feature.
i see the tracks now
wow, they have interchanges and everything
and a suburb
its small by big city standards, but large by western Illinois farmland standards
and a piggly wiggly, which is the cheap place to eat
and a prison :) and an 'airport'
cool, I must russel up some chow so ttul
piggly wiggly, you know you're in the midwest
the shop is at 155th and W Main, out past the airport
why piggly wiggly is in north carolina too
we have a prison here, we call it the state pen at Penn State
maybe 10 mins from either hotel, tops
you can camp right at the fest too
well I'm heading up stairs from the beer cave to strap on the feed bag
but no showers
you only need showers when your dating
I work with some guys like that
c u guys later
lol - look at the reviews: http://www.travelpost.com/hotels/Econo_/h127435
is there water available... a solar shower is easy to set up...
that second one was a paid endorsement
LOL.. nice of them to post it at least...
the first was unneccessarily harsh, it is clean and functional
my standards are pretty low
I've slept comfortably on a pallet of boxes
better than the floor, it's amazing how cold it gets in Ok City
like wise.. allow me under 1 of you'r trees and an outside pooper and shower ... I'm in... campfire allowed is a bonus
interesting - exact same bad review here: http://www.tripadvisor.com/Hotel_Review-g36023-d729388-Reviews-Econo_Inn-Galesburg_Illinois.html
must be the guy that runs the hotel down the street
if i make it it'll be a camping adventur im surre
I found the one we stayed at last time (I'm pretty sure)
"America's Best Value"
you thought the Econo had a bad review.....
[00:37:48] <jmkasunich_> http://www.tripadvisor.com/Hotel_Review-g36023-d87791-Reviews-Americas_Best_Value_Inn_Galesburg-Galesburg_Illinois.html
the places my wife has us stay at charge more for wireless than the room costs at the places I stay at
that why i try to travel alone too
comfort inn &/or affiliates have been good to me
jmkasunich, you need to get this German guy to drive your next robot: http://www.youtube.com/watch?v=z9uhEE01l_A&eurl=http://www.rcgroups.com/forums/showthread.php?t=354036&page=32&pp=50
warning, country music
i think it was 'lake storey campground, galesburg, illinois' http://maps.google.com/maps?ie=UTF-8&oe=utf-8&client=firefox&rls=org.mozilla:en-US:unofficial&um=1&q=lake+storey&near=Galesburg,+IL&fb=1&cid=0,0,2679705042972260208&sa=X&oi=local_result&resnum=1&ct=image
funny, I was just thinking about workshop tonight too.
I was actually thinking about NAMES, but the discussion drifted
what happened to NAMES?
I have a co-worker who recently got a manual lathe, and has the metalworking bug pretty bad
its still going on, in Toledo now
at the convention center?
I'm planning on going one day with my co-worker - I bet it will blow his mind
I think so
there's some other nuts that go to galesburg, they build these http://www.stearmanflyin.com/index.html
I'd go to NAMES if it was close. it's fun to look around.
galesburg has a railroad based event in the summer too
busy little town
I liked the trains at NAMES
my co-worker likes to work on Honda mini-trail minibikes - he's looking to do stuff like sleeving cylinders, make custom parts, etc
jmkasunich_ is now known as jmkasunich
darn "no drugs"
those reviews are a hoot
* Mar 27, 2008: “Utter Filth!”
* Mar 11, 2008: “A Great Place To Stay”
* Sep 28, 2007: “this place is falling apart”
which one is that?
the one we stayed at
they need a rating for manly-men
I don't remember anything about it - so it must have been fine
you were never there except when you were sleeping
according to the film on youtube
it is definitely rough around the edges
let me know if you see any manly-men, all I saw was us
my top complaints about hotels are: can't make the room dark (bright outside lights), shower head is at neck level, internet doesn't work
those are my pet peeves. everything else is usually just fine
mannish boys? http://www.youtube.com/watch?v=F-gnHCjidZ0
i slept thru a fire at 1 hotel 1 time... playoff game and beers and cheese wheels.... i woke up fpund the jap ENG outside... asked whts up... he was in my room earlier... he said FIRe... i had no clue what he was on about.... so where's the 1 with the trans cheap...
I wish I had slept through an air raid once
turned out to be non-existant
oh well we get over it dont we..
that's a couple hours of sleep I'm never getting back
eric_U: till your dead
i was upset that the parrot at the desk was gone.. i wanted to steal him and bring him home.... they removed him due to smoke... i never smelt a thing..
saved you from being a parrot stealing criminal though
yes.. sleep apnea has its benefits..
except for the brain damage
i stop breathing 5-8 times per nite
ive had episodes ov 9 minutes
cradek: By your "manly man" comment, and not referring to yourselves, by definition that "manly man" would have to be either a) big foot) or b) a caveman.
cradek: But just think about it like this.... you could always get into commercials =)
Geico Insurance commercials... "So easy, a caveman could do it".
[01:50:24] <JymmmEMC> http://www.leveltendesign.com/buzzlevel/wp-content/uploads/2007/03/caveman_2.jpg
[01:51:09] <JymmmEMC> http://cavemenscrib.com/
that poor guy
soon, I'll learh how delayed my flight to Burlington will actualy be
it llooks like 90 minutes or so at the moment
SWP Eeeeash, ever considered freight ship - via HK.... might be faster.
arg - I got one or two nice bird pics yesterday, but the camera was still set to ISO 800 from the previous night - lots of noise
jmkasunich: Hey, just come to my place if you like taking bird pics... they'll even pose for ya
If you have to drill & tap a new setscrew hole, any suggestions as to deburring the inside of the new hole w/o fubaring the inside too much?
you talking about deburring the intersection of the setscrew hole and the pulley bore?
jmkasunich: yes sir
do you have a drill or better a reamer that fits the bore?
[02:05:27] <jmkasunich> http://jmkasunich.com/pics/chickadee-1986.jpg
bold little dudes
that turned out pretty good,
jmkasunich: Un fortunately no, biggest bit I have is 1/2"
jmkasunich: what lens?
the shaft of whatever the pulley goes on is the right size...
cradek: but doesn't have flutes
JymmmEMC: tamron 70-300 zoom
jmkasunich: was the bord about 40' away or so?
no, probably about 6ft
300mm is long, but not that long
jmkasunich: Ah, I've shot a soaring hawk at about 100' away with my 70-300, but of course not close up like that is. though you could see his wing feather colors
Now, THAT one is a bit grainy.
here's my best hawk pic: http://jmkasunich.com/pics/hawk-1797.jpg
probably 50 feet up a tree
the woodpeckers pic is much more heavily cropped
SWPLinux: On the floating end, did you intend for the lip the bearing sits againest to be on the inside or outside ?
SWPLinux: nut - lip - bearing - rest of shaft ?
SWPLinux: nut - bearing - lip - rest of shaft ?
SWPLinux: I'm assuming the lip is to be on the outside, as al expands more than steel
I don't know - whatever works
I think the spacing may be too far if the mount is on the insiv
SWPLinux: Oh, guy at work let me borrow his older shrink-tubing printer... just gotta find a (VDC@4A PS for it =)
9VDC @ 4A (yes, that's correct four amps)
SWPLinux: Though, I'm gonna try my 30A supply first to confirm it really does draw 4A.
SWPLinux: I hit HD after work tonight... the damn back panel is in between (widht wise) of a 2 gang and 3 gang box =(
(closer to 3.250 gang)
SWPLinux: And (of course) the only grey nylon cover that dind't have was the one I was looking for (made for a switch and an outlet)
switch = 20A breaker
In a ABEC7 bearing how munch play should there be between the inside and outside rails?
in which direction?
will replace the bearing - think it's a bad one anyway.
answer is still none
The outside of the bearing is fixed in a block, the inside is fixed to the 30" shaft, I can feel sideways play when I move the shaft back and fourth a bit, like I dont have the bearing seated all the way in the block (but it is)
interestingly, it's almost impossible for that bearing to fail
could just be a bad bearing too, will replace and check if that was it. Just wanted to make sure.
well, you never saw how it was setup previously =)
maybe I need a picture
we were trying to get a bearing to fail in a motor, drilled holes in the outer race
it's still running fine
fenn_ is now known as fenn
is Chris Morley == lerman??
why would you ask that?
I am poking around in classic ladder and Chris shows up a lot as an author.... want to pic his brain
he's not on irc
bummer.... I am thinking of putting the realtime stuff on a pic and changing the shm interface to a serial link for some small standalone controllers
let linux do the programming and display if needed
i think i saw him once as 'C_Morley'
I need a new brain for my stove and for my heat pump... great applications for ladder logic
i knew someone who made a finite state machine builder for pic's
I could make a dedicated program, but ladder is so well suited for the job
[04:54:27] <fenn> http://asmith.id.au/state-machine.html
and most of it seems to be written already
looks like the realtime part of classic ladder has 3007 lines of c.... not bad
I dont have a good handle on how everything ties together yet
can you change the JOG speed via kybd?
anyone seen phreedom in here lately?
do a bookmark and search the link given
eric_U: are you talking to me?
not sure how to bookmark an irc log
and irc channel*
are you talking about search linuxcnc.org for his nick?
there is an automated way of getting the last 24 hours as a link, but I forget the syntax
Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2008-04-01.txt
I have two pins avalible for each axis of the joy stick, a s32 that ranges from 0 to 255 with 127 in the center and a float that ranges from -1 to 1 with 0 being some what close to center
what would be some was to use this with halui to jog my machine?
and having the speed of the jog controlled by how far you push the stick
hmmm what does halui.jog.n.analog do?
guys guys guys
i have an idea for an auto changer for 1/8" straihgt shanks
and i will have these on my side
well it looks like halui.jog.n.analog is my ticket
[10:16:23] <renesis> http://tinyurl.com/2kgdvd
can i get a holy shit
that is a bearing
yeah but its a mad sexy bearing
you have better bearings for same money?
the y axis goes backward when I use the halui.jog.1.analog input
hmmm how can I invert a float from positive to negitive?
I guess I can take it apart and hack the wiring...
BigJohnT: sum2 and set gain to -1
thanks alex and good morning
I never would have guessed that one...
you only use one input
and set the other one to 0
[11:25:08] <alex_joni> http://www.linuxcnc.org/docview/html//man/man9/sum2.9.html
ok, I didn't setp the other input to 0 but it worked anyway
it is 0 by default
cool, I picked up a usb joypad and with a couple of added lines have a jog pad using halui and hal_input
that works nicely
I'll take pretty pictures and post it on wiki when I'm done
much simpler than the other two examples on the wiki site
and it has speed control of the jog within the range set in halui.jog-speed
thanks alex and have a glass of tea on me
and the sequel: http://www.youtube.com/watch?v=cT18LZItBLA
I don't get it
cradek: it seems that the repeated lyric in some song by Mariah Carey is "I can't live without you", which this unfortunate woman thinks is "mumble Ken Lee mumble mumble"
cradek: you're musically illiterate :P
(however you're supposed to spell that :)
* archivist is old enough to remember the original singer of that song
she sings a song in a language she doesn't know very well - funniest thing ever?
well, that's not that funny
maybe it's the captions that make it funny
but competing in a show, and beeing quite sure that she sings the right thing..
alex_joni: More pathetic than funny
cradek: I have no voice for singing, but ever if I did, and I would have to sing a song in chinese or whatever, I would probably try to learn the words first..
yes, it would be best to at least learn the title of the song
alex_joni: Not really, if you ever sung, only canines would be able to hear it.
at least I might be able to break stuff .. like glasses & such
alex_joni: Though, the same applies here as well
jymm: figured that you're talking from experience :)
alex_joni: Oh, I can't sing for shit - there's no denying that (at least not without lots and lots of substance abuse)
* archivist does tick tock
fenn: I wrote to the mailing list, as you suggested. Hope my project will go on... i'd love to have the jog/shuttle usb controller connected to the machine :)
dwery: there is a lot of info on usb jog pendants on the wiki site...
archivist: I'm building the Mark II Vaccum Wrench today
BigJohnT: d'oh! are they already supported? I was thinking about controllers like the contou shuttle pro
don't know what that is but if you can "see" it with hal you most likely can use it
if not, i'll just write the code
look in the configuring emc2 remote pendants section here http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl
is it a usb joy stick or something?
got it. I think they support the HID axis motion, while this kind of controllers works more like an encoder
it has an encoder output or a float?
so you first select the axis you want to move and the use the rotary encoder to move it
dwery: best thing to do is plug it in and see what it presents to hal_input. Some of those devices are sane, others are not
yep. I worked with one ymonths ago, can't remember the HID descriptr
but should be doable
look here too http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Simple_Remote_Pendant
I just did this one this am and it does what you want and more
this is the hal module that will read it and give you access to whatever buttons, keys, and analog axes it presents.
I can pick my jog speed and the joystick controlles speed within the range
BigJohnT: it really has 4 axis
JymmI've got one of those.. but it's not very easy to move the axes precisely where you want.. it's looks stunning anyway
the contour shuttle pro uses both EV_REL and EV_DIAL
jymm: what do they output?
dwery: I borrowed one, and it drifts on it's own, so I'm not sure if it's the device or drivers
mm no.. EV_REL and a subset code which can be REL_WHEEL and REL_DIAL
let me check
BigJohnT: nfc, but there are linux drivers for it
you don't need drivers for hal_input AFAIK
Jymmdunno. under windows it works fine. unde rlinux I had to write a couple of patches to the sw I wanted to use it with
dwery: I'm on a mac so I have all three, but haven't tested nix yet.
this one works and has 6 axis with 4 porportinal and a butt load of buttons and I know it works
[16:14:55] <BigJohnT> http://www.logitech.com/index.cfm/gaming/pc_gaming/gamepads/devices/288&cl=us,en
BigJohnT: I dont think so - homie dont play that
BigJohnT: I'm not using a game pad for a pendant.
the 3dconnexion should have 6 axes
dwery: tilt x2, twist, slide x2
ya still have to plug it in and see what you get with hal_input...
BigJohnT: ah hell no... still gotta get used to it in drawing program before tossing it on a robot =)
bump it and be sending the machine 150MPH, THAT WAY --------------------------------------------------->
that's why I use the joypad it does not do that...
you can bump it all you want and no moveee anything
Jymm: you're right, five.
BigJohnT: Well, for $20, you're right, it be pretty good. I just want the shiny cool blue glowing thingy damnit =)
is the game pad usb?
I didn't say it won't work and shiny is cool...
I've set up for three different jog speeds
* BigJohnT needs to go make chips
jymm: hal_input supports EV_LED< so you can even control that shiny blue led :)
oh man - this cat does not like my office
SWPadnos: You picked up a stray cat on your adventures?
heh - no
my friuends cat is here while stuff is being moved
she likes to hang out in the basement ceiling
ah, so feline chow mein for dinner tonight huh?
I think she likes my office now though, she's knocking on the door
if she's knocking... RUN FOR YOUR LIFE!!!!!!!!!!!!!!!!!!!!!!!!!!
[18:24:08] <LawrenceG> http://www.youtube.com/watch?v=7hEXwyJ2B78
this is very cool ... this guy just posted to pcb-gcode on yahoo
a walking cnc machine
BigJohnT: put a plasma torch on it with magnetic feet and it could cut up ships for scrap!
but it won't cut arcs :(
seems that it looks like a replicator from the stargate TV program... yikes mechanical spiders!
It did look kinda mean... like a 150 pound jumping spider would look....
BigJohnT; hey there
alex was telling me that you are working on some canned routines for emc?
um, I am?
hmm what bout a logo turtle
hmm, could it have been lerman he said was doing that?
maybe someone else, it was real early in the morning
IIRC he did some oword stuff
yea, I think it was lerman
Yes - it is lerman
[19:51:41] <fenn> http://timeguy.com/cradek-files/emc/concave.png
alex_joni: ty for you answer on my gantry machine.
i'l be monitoring this channel as the project goes on.
dwer1: cool, nice to see you in here ;)
dwer1: regarding encoders on the steppers
it's really hard to try to use encoders in order to compensate for lost steps
that is because of the way steppers are built
once you start losing steps, you simply don't have any power to compensate
fortunately correctly-configured stepper machines don't do that
yeah, what cradek said
the encoder/motor correction usually works on DC motors, or AC motors
and it might even work on steppers if you keep 30-40% of power as a reserve
that's what I used to see.. I don't know why they choiced this design
but in that case they won't lose steps anyways :)
i think the steppers cost less :)
dwer1: yes, steppers cost less, are easier to set up, etc
so I can just use bigger steppers :)
there was a quite long discussion on steppers + encoder on the mailing list a couple weeks ago, that's why I didn't want to repeat it
maybe you can read it in the archives
dwer1: you need to use _correctly_ sized stepper motors
in that case there is no problem in using them
dwer1, your machine size is probably a bit large to think stepper
greate. I'll surely stress that out in the next meeting
and you can keep the encoders for safety (in case the machine hits something or whatever)
the machine should be something like 2000x800
but as archivist said, you might get more performance out of bigger motors
dwer1: you need to make some rough estimates what the weight of the gantry is
and see if you can find steppers big enough, which can move fast enough with good enough precision
dwer1, yes you can gear and get more torque but that loses speed(and steppers are not fast anyway)
the people that are building it seems to be quite expert in the matter.. i'm trying to build some confidenc in linux and open source.. is all new for them
archivist: and they lose torque above a certain speed
so you can't gear high ..
I'll see what the speed requirements are
but don't think particularly high
it's task is to smooth pieces of glass
ah ok so forces are low
just be aware that steppers can cause vibration as well
think so. what I fear the most is that I have to build the sw without having the machine ready :)
use microstepping to improve that
dwer1: there are a couple of tools which help there
look at vismach as I suggested
yep already looking. ty
archivist: will do microstepping. just have to choice an appropriate steppe contoller
good night all
nite and thanks!
dwer1: c'e nessuno problema
Can I modify the AXIS interface?
I mean I want to put more ainformation there like:
Milling time and run from Line #
jack_live: since emc and axis are GPL software, you are free to modify it in any way you like. the wiki contains help on how to get the source code and compile your own (possibly modified) version. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#On_Ubuntu_6_06_from_source
jack_live: (but that's no guarantee that the modifications you'd like to make are easy)
run from was being talked about a few days/week ago