never heard of 'rolling average period' but many electronics guides on net.
the 'rc' constant ?
it's easy to see how the rc controls the slope of the exponential charging rate
but you only get exponentials when you conduct a one-shot 0 to 1
what's the effect of rc on a freakin' sine curve?
hmm, internet is down, i can ping google, stream video, ftp, but firefox wont get a page, progress bar is empty. rebooted, same!
dns server down
just look at it as being up in reverse
I like the fact that you can talk on IRC without dns
never really made sense to me that browsers are continually doing dns lookups
only stupid browsers
it used to be you had to press ctrl-shift-r to get netscape to clear the dns cache for the page you were reloading
firefox must do a dns lookup for each page
that would be really slow
you would think so, but then why does the dns server going down kill the any browsing
you should be able to reload a page, for example
reload might cause a dns lookup
what doesn't then?
clicking on a link
(not that i actually know, just guessing)
link is a needs a lookup anyway
there are a few local dns caching progs if your isp's dns server is lagging
I'm inserting random articles because I just got back from a bike ride
I've thought about local dns caching, it seems like comcast likes to play games with dns a lot
eric_unterhause1: did you finish that mill yet?
I'm resolved to finish it any day now
smashing my finger really put a damper on it
that'll do it
there were other factors as well, now that I think about it, work related
i can ping www.google.com so i guess dns is running
actually, I got my lathe turning under it's own power the other night, that's this weekend's project
but, i gotta goto work anyways, bye bye
a perpetual motion machine!
i've always wanted to build one of those
perpetual motion machines almost always involve batteries
yes, well, the cycle of violence will just continue unless you stop it, that's why it makes a great energy source
usually, you have to read through to the end of the article to find out there are batteries in there for "power smoothing" or some such
anyone remember what micges' DXF importer was called?
ah i found it http://sourceforge.net/projects/vec2ngc/
there's an intuitive name
dammit. i'm stuck on this stupid code thing and i refuse to do it the ugly way
[09:51:05] <alex_joni> http://gawker.com/5206458/watch-a-google-street-view-car-hit-a-bridge
Dallur: hows the boat coming along?
BigJohnT: I had to replate half of the deck to get the sheer in a better shape, I expect all plating will be done in one week
BigJohnT: Then it's 2 weeks of welding and grinding
BigJohnT: It's not a big thing, about 1 day of work to redo, it was only tackd
tacked is good
is your camera on?
[11:37:26] <Dallur> http://dallur.com/index.php?id=129
nice big :) on the side
It's moving fast now, I quit my job so i'm building full time
how will it be rigged?
cutter, 13m mast
in boom furling and furling on the forestay
no furling on the staysail
I should probably model the rig on the boat and do a rendering or two :)
that would be cool
how are things on your front ? Spring there yet ?
it is getting close
I have some tomato plants starting from seeds about ready to plant in the garden.
We have a few nice days that the wife and I could take a ride on the bike
I have the V-F board from Peter and am working on the THC with it :)
doing some soldering on a test board this morning to hook up and start work on the THC component for EMC
BigJohnT: you writing your own C component to interface ?
I'm using comp
BigJohnT: ah OK
it will be similar to your work but all rolled up in a component
BigJohnT: Probably makes more sense as a component :)
the V-F board generates a frequency based on input voltage that is fed to an encoder input, the velocity output from the encoder will be my source for the torch voltage
BigJohnT: What really seems to cause most people a whole lot of problems is the HF/RF stuff though
BigJohnT: I have helped a couple of guys with their THC and it's always the same, noise causing problems
yea, HF start is not easy to deal with... that's why I got a Hypertherm 1250
BigJohnT: yeah, the newer non HF machines are easier to deal with
BigJohnT: I have wondered if there is a simpler way to get around the problem as a whole though
BigJohnT: like placing the encoding mech on a table and connecting it to the computer with a fiber
using standard networking fiber optics should keep the costs down
does the HF mess with the electronics of the THC's?
BigJohnT: everything pretty much
Peter said that the board would have enough capability for a HF start torch...
BigJohnT: seen blown components on the pcb, computer lockups, motors going nuts, drivers going crazy
wow, makes you not want a HF start
BigJohnT: I don't know the board but I'm very sceptical when people say HF should work, if they are 100% willing to garantee it will work I would beleave them but "should work"
to me that means that with extensive modifications and debugging it can be made to work :)
the board is brand new and I'm testing it and working out the EMC part (I hope) I have no plans on testing it with a HF torch...
BigJohnT: don't :)
the way Peter put it was it was built way overkill :)
BigJohnT: my current advice to people with HF is to buy a new machine without HF, it's cheaper than getting a THC to work with the HF torch
and causes less road rage :)
BigJohnT: I don't remember the exact number or math but I recall that a typical HF start can arc across about 1/2 inch of air
So every connector needs to have it's poles spaced by that, every cuircuit needs to be spaced by that, unless everything is MIL spec coated
BigJohnT: yeah, it's nasty to deal with and the only people that seem to really know anything about it are radio amatures
BigJohnT: but then I start telling them how many amps I work with and they get scared
Hypertherm has HF THC but they are the industrial (expensive) ones.
BigJohnT: yeah, it seems it's hard to get "touch start" working above 100A
BigJohnT: but in every other way touch start is better, it's easier on the consumables for one thing
my current thought for removing the offset is to gradually remove it after the torch turns off and as the Z moves up...
BigJohnT: are you talking about the cut thickness compensation offset ?
BigJohnT: The other way to deal with offsets is to compensate for them in the CAM work and keep EMC unaware
the wavy material compensation
BigJohnT: The Z axis up/down ?
yes as you cut
BigJohnT: Ahh so your thinking people can set their own height and you will just offset from that ?
BigJohnT: and the height they set is the "travel height" ?
once the cut has started and your velocity is up the THC will move the Z up and down as needed to maintain proper voltage
at the end of a cut you might have a negitive offset in there if your sheet is warped down
and once the cut stops it will move back to the original position ?
BigJohnT: the only really safe way is to put on the feed hold and move the Z up
as you command the torch to move up to clearance height any Z offset would be removed
BigJohnT: the problem is you might have edges or other obstacles that the torch would hit as it moves
no, I don't want it moving at all once the cut stops
BigJohnT: so basically feed hold, move Z up and then allow the f0 ?
BigJohnT: I think that's the only safe way to do it
offset freeze, move Z up, bleed off any offset
also offset freeze if your below the velocity tolerance you set (corner height lock)
or any other problem
and somekind of offset freeze if the torch voltage moves too fast I think
BigJohnT: you need some "ballast" on the movement for sure
BigJohnT: but it's hard to have it ballasted, because if something pops up due to warpage you want to react immediately
some kind of response rate or gain
and the thinner it is the worse it warps and the faster you go :)
it's tough, but I would say that the best way is to have the speed of the z movement adjusted in proportion to the voltage offset
so If the voltage is way under, you move fast, if it's just a bit under, you move slowly
ok, I had not thought about that relation
a PID loop :)
I had some problems with oscilatinos initially, but I was to lazy to implement this so I just enabled the user to control the adjustment speed
I have tested it with a BOB and the parallel port but the speed of the BOB or the parallel port was too slow to read the pulse freq from the V-F board
as the input voltage got past 3 or 4 volts
so now I'm moving on to the 5i20
that's a good start... I plugged my adapter board in and no magic smoke came out and the blinky leds came on :)
:) bbl, need to to some boat building
is there some expectations about how fast the THC can adapt to the surface? like, can it travel over a wasbboard & track well, or maybe smooth curves of +/-12" radius? (at velocities suited to the process)
uh, what happens if it goes over a hole! oops
you slap the programmer!
abandon hover mode
how fast are youmoving in these cuts, and how wavy is wavy?
at this time my expectations are to be able to handle normal plasma cutting
uh, no idea what normal plasma cuttin is like, tho at imts, they honk
the speed is determined by the material thickness... in my case between 10 IPM and 400 IPM
wavy would be + .5 or so
ok, and whats a maximalish surface variation per inch?
opps, no dZ/x
depends on how rough the fork lift guy is on your material
oh, so its bendy not crinkly
normally it is pretty flat to within a 1/4" or so
if it is crinkled then you don't take it off the trunk :)
doe sit move while its cutting? i bet it can 'fall' as stock is removed then
is the feedback voltage drop?
it might move up for thin material but the slats contain larger parts
ok, like edm, the desired voltage is dialed in, and the servo maintains that, if the steel moves away the tool chases it
you dial in voltage and velocity and velocity tolerance
and set some base velocity that gets fiddled ?
ohm, you said vel, sorry
we also set up a gain... kind of an accell, how FAST you want to make the change if theres a change to be done
it makes the head go from sluggo to hyper nervouis
yea, some kind of gain on the Z correction would be in there
its like driving in traffic, and keeping YOUR space ( like, maintaining the path with emc's 'tolerance' )
thanks for the info, very interesting & good luck. there's a whole world of 'gap controls' as opposed to 'feed/speed/position' controls. its another 'discipline'
yes, it will be interesting for sure
oh, another thing might be of tinterst... the 'curve'
when you get real close to correct, you change the velocity and accels and gain, when you are way out of line, you move fast
the curve has a poin t in the center where it doesnt move, becasue it's where it shopuld be ( the pole )
and left and right of that is infeed and outfeed
and above and beow that is fast and slower
but, the line that is tracked can be bent, and you make a sweet zone near the perfect point
and you make these steepish ramps outside of the sweet zone (run away and get back to work ;)
the I part of the PID loop I think
the voltage is a lookup index into this curve, you solve fgor the new velocity
so, the velocity result is not linear
nope I was wrong it is the D part of the PID
ah, derivatives in process control, kill process, only P!
ok, avoiding rants :)
bestoluck, what the H are you doing up ... must be ... oh 8 am usa
been up since 5am
you can next get a strain gauge and do force feedback polishing
use the V from it same way
now if I can just get my pulse signal into the 5i20 this morning I'll be off and running
from the F/V? from some pwm,.... so from emc?
do you have a dummy signal souce just for tests? maybe a 555, resistor and cap ... heck you can use hal for a waveform generator ( cool stuff that hal)
from the V-F board
heh I know what's wrong :/
oh the F is not a number, its a wave, good
I started counting pins from the wrong end... slap on forhead
* BigJohnT fires up the soldering iron to move the wire
argh, had same thing, some connectors were on bottom of pcb, i had hairy board with so many untwisted busses hand soldered! take care usually well into the 'toodamnsmall' size
connectors on botoms of pcbs have to be mirrored when placed onto the pcb
else pin 1 is wrong
that made a hellofadifference
I have the velocity in EMC :)
and it is steady
nice I can see a good span on velocity with a 0.01 voltage change
velocity changes about 5 for every 0.01 volt and I just noticed I'm still on divide by 128!
I think it is user units per second
10mV has noticeable result... and the range is +/- 10V? thats a lot of rez
scrolling back...., at 0-3or4V its 3 or 400 usable velocities.
0-10 or +-5
ok, now run it over the bastard file and see what happens :)
the voltage to velocity ratio is flat as a pancake
the chart http://imagebin.ca/view/Jv6CxyD7.html
bbl breakfast calls
have a good un, thx
(wow bigjohn has breakfast that talks, mine cant even hum)
anyone live near a lexus dealer, there has been recall on the electric power stearing, the assembly has a nice but short ballscrew in it http://designerthinking.com/projects/Lexus%20steering/Lexussteering.html
nice, looks like 0.2" pitch, 1"dia, rolled ballscrew with a rack on one end
10" of thread (less len of ball nut=travel)
not alot of travel, but for %
$5, its not bad
wah! you got a whole sh&*load of 'em, nice score ( nice rack )
thats not my page, thats kats'
thanks for the tip anywho
I don't live anywhere near a lexus dealer
and i cant put em in my baggage :( the taiching lexuz dealer is only a couple kilo away
if anyone finds some and are willing to ship some of them to me
ballscrews are bloody expensive
might be nice for a hexapod, with the motor, they're more like 'thrusters'
yea, I bet they have some force behind them, I think thats what kats' is going to use them for
They may just be 1tpi, its something like 4 parallel threads
for a cnc application one would have to gear it way down
oh multiple lead
am i getting this? the motor spins and shaft(screw/rack) does not, right?
else the rack would be pretty useless (doh)
yea, the ball nut is the spinning part of the motor
its a neat design in someways
i've only seen that on tiny steppers, cool
Hello, I'm looking for information on how to configure a Gecko540 driver on a taig 4-axis cnc mill
I have a configuration file for Mach3, I wonder if information can be dug from it
sorry, dunno geckos
configure meaning what? a cfg file for emc to use the gecko?
well, if its sufficient
I'm rather looking for a guide
i know people here have used geckos
i use gecko drives
ok, any link for me?
I use gecko 203v's
did you use the stepconf wizard to generate a configuration?
what is in the 540? there are 4 drivers
no, right now I can't because I'm on 8.10
arent they like a small 201 drive
anyone know of an affordable source for ballscrews, cheapest I've found is over $100 for a short little rig
I'm gathering information before I install a 8.04
what info do you need?
TaigGecko5404axi, I can send you a G540 config, if you like
a guide to setup a 3 or 4 axis mini mill with gecko540 and 280oz steppers
you'll still need to set the step resolution and accel/vel limits
do you think I can dig it from a mach3 config file
Garak new ball screws aint cheap , like what you found is not bad price. maybe you can find used from a machine, but skip piles of ball screws in boneyards, theyre in piles for a good reason
the step resolution I have it
TaigGecko5404axi, I have a stepconf file for the G540, and no, you won't be able to convert a mach file
I have the mac file
[14:26:10] <TaigGecko5404axi> http://www.deepgroove1.com/tutorials.htm
the mach file is useless for EMC2
however, I'm telling you that I have the EMC2 equivalent, which I will send you
okay, I though some info could have been extracted from it
need my email?
no, we'll try dcc here - one sec
no just concentrate
I'm booting the machine it's on :)
I'm on the java client, though
well, if it doesn't work I'll get your email address :)
are you on a Windows machine right now?
what is the server name
ok, good. line endings get screwed up
I have konversation
TaigGecko5404axi: let's see if DCC works with the web client first
I guess so
it worked, thank you
TaigGecko540-4ax, let me know how it works for you. I should send it to Mariss some day and I'd like a few people to use it
what kind of machine do you have?
is it similar?
I have a G540 with a stepper motor clamped to a bench :)
with a laser on it so I can see (on the far wall) if the motor is in the right spot
right spot for what?
I would line up the spot somewhere, then do a bunch of G0 moves, and make sure the motor didn't lose any steps
I see, some sort of encoder
with the settings I had, I needed one turn per 0.2"
well, a "lost step indicator"
is it positioning good
a 'pointed stick'
it didn't at first, but I eventually got it (needed to invert the step pulses)
anyway, I wont be able to give you feedback before I receive the machine
no problem. it's been a few months already, a little while longer won't hurt much
I think such info if present in a mach3 file
accel? top velocity, step format?
sure. but I'm the guy that makes the config files, so there's nobody to tell me how to do it ;)
[14:40:26] <TaigGecko540-4ax> http://www.geckodrive.com/upload/540B.xml
(Mariss sent me the G540 so I could make an EMC2 config)
what stepper do you have?
I bought 3 of the Keling ones that are "made for the G540"
I don't remember the model number
That's the ones I'll get, I think
but they are not branded Kelig (rebranded)
they seem to be well matched to the G540, and aren't too expensive
yeah, they say
Keling is a reseller, I think he imports direct from China
so there are no "keling brand" motors AFAIK
well, anyway, I have these guys
[14:43:10] <TaigGecko540-4ax> http://www.deepgroove1.com/280oznema.htm
oh, here it is: KL23H284-35-4B
these are 387 oz-in
[14:44:59] <SWPadnos> http://www.kelinginc.net/KL23H284-35-4B.pdf
$49 instead of $39 though
yeah, they are bigger
but I've been told that they are a bit slower
hmmm. actually, one thing about that file - you may have to fiddle with the A axis settings a bit
for G0 moves
yeah well, I'll begin with 3 axes
could be. deepgroove doesn't seem to list inductance, which is the limiting factor for speed (combined with supply voltage)
anyway thank you, are you here often?
I think I had this motor (unloaded) running at 50 kHz step rate
yes, I'm almost always logged in, and I
I'm in front of the computer ~12 hrs/day
maybe more ;)
unless I'm getting coffee, like now
hehe, fine, I'll be back when I receive the beast
tomp: at divide by 64 I get a 0.02 volt resolution http://imagebin.ca/view/lmbHH38e.html
yes dbld the velocity at every value
everything I've read says if you can get 0.1 volts of resolution it is good enough
you got 14000userunits/sec / 60 = 233ipm?
It is a nice straight line so that make the math easier
yes it sounds like you got tons of rez ( before you get excited, the smallest discernable unit shoudl be above the noise level ;)
now that you mention that it is time to fire up halscope I think
and I have divide by 32 and divide by 1 left to test out
my edms can discern 10mV ( well heck they're analog ) but, they're also 0-5V and have 100mV of noise that i filter ( i chuck everyuthing above 500hz)
you cant really move that fast, so ignore the fast stuff
theres frogs in the rice fields here, its a warm spring nite, windows open, the sound of scootters climbing the hill
at least you don't have to listen to coqui's
that drove me nuts in puerto rico
just looked em up, no these sound just like the ones in illinois
that ain't bad then
every now and again a whippoorwill will take up residence outside my window and they can wake the dead
* BigJohnT goes back to working on the THC component
BigJohnT: seems you've got competition
[15:22:45] <alex_joni> http://www.youtube.com/watch?v=Wo77Neoec0Y
how can i get my counters to reset after homing,is it possible without an index pulse?
jlmjvm: what counters?
my dro for x y and z
once you home you should be in 0
if other numbers are displayed, then you probably have an offset applied
either G92 or G54 offset
unless you left an offset in there
this is different,if you turn power to motor off and on they will move slightly
Paint a face on a soccer ball
try a G92.1 in the MDI window
and that diff wont go away after homing,unless you turn emc off and rehome again
metalgeek used two rack on his gantry, no crabbing there!
jlmjvm: if the motor moves (on a stepper) there is no way of emc2 to know about it
but the numbers in the display shouldn't change
metalgeek doesnt say anything about a floating head height (THC)
emc reads the encoder when it moves
if i unhook encoders it always homes to zero
but they have no index
steppers or servo?
doesnt the index enable reset the couners after the latch during homing
so you have steppers and encoders, right?
are you homing using the encoders?
using a HOME_SEARCH_VEL & such?
or just take current location, and use as home?
no,use HOME_SEARCH_VEL & such
want me to paste config
you can use pastebin
[15:38:20] <JymmmEMC> http://codepad.org/
<-- is AWESOME!
this is cool: http://www.youtube.com/watch?v=QYBAH6E8IZs
[15:40:46] <jlmjvm> http://codepad.org/hrw0ltob
[15:43:26] <alex_joni> http://www.youtube.com/watch?v=Nn1bJ3YAQdI&feature=related
<- does anyone spot something at 4:51 ?
also my encoders are always powered,motor power off i can still rotate screw and see dro move on emc
where it moves the controller? ;)
would be a dro if i had handles
LawrenceG: how is the circuit working..
wired straight into a parport
skunkworks, milled pcb yesterday... it looks ok... have to get a digikey order done today as I dont have some of the parts
[15:49:10] <LawrenceG> http://imagebin.ca/view/0-6vZMtf.html
[15:50:39] <LawrenceG> http://imagebin.ca/view/hS96Ah1.html
hahah the head moves the operator cabinet
LawrenceG: you make the mill that cut that board?
LawrenceG: very nice
* BigJohnT ponders about feeding a PID component from the THC component to do the actual offset...
I think I'll take a nap and think about it
sounds good :)
i changed my wiring,encoder power comes from a pin linked to machine on,homes to zero every time now
BigJohnT, no, It is a shoptask lathe mill.... the backlash even with ballscrews is pretty bad (the circle on the bacl of the pcb is closer to square!
LawrenceG: I picked up a 20 ft push-up yesterday, Think I might get one of these http://www.arrowantennas.com/j-pole.html
JymmmEMC ah u must be a ham too perhaps?
* BigJohnT decides to move the 5i20 to the third computer on the left as it has a better monitor
isn't it easier to move the monitor?
Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2009-04-12.txt
BigJohnT_ is now known as BigJohnT
If you had a choice of materials for a 8/32" screw 1" long, what has the best shear strength ?
depends on the flavor
well, HSS -vs- SS ?
I don't think you will find a screw made from HHS
that'd be an expensive screw.
Ok, take two 3/8" diameter aluminum rods, use an 8/32 set screw to attech them end-to-end. What material would you use?
with a rod coupling?
any steel then
a cup point set screw of any stell
the aluminum is your weak link
Now toss in 100MPH wind =)
the aluminum will fail way before the steel does
yup grade 5 set screw
no matter the size of the aluminum
grade 5 is ???
it's just sort of an average-ish screw.
in terms of strength
more ductile and better shock toreant than grade 8 which would crack thru the thread root.
I don't think you can find set screws with a grade they typ only spec the min hardness
jymmm just use some threaded rod
JymmmEMC: what in the wide wide world of sports are you doing?
fenn: It's an antenna
The long element is made in two pieces, each piece is then chucked into a lathe, A hole drilled in the center of each piece, the end turned so it is flat and square. Then both are threaded 8-32. A 1 inch long set screw is attached to the upper section so the two pieces can be screwed together. The angle bracket is also drilled and tapped so the top element can be attached to the bracket for storage or transport.
This option will add $10. per antenna.
short bits of threaded rod
you're going to have a hard time finding 1" 8-32 setscrews
mcmaster carr has them up to 2"
i wonder what the hell they're for
I don't want to find out or have to tap that hole :)
You should see the equip he's made
[20:08:21] <JymmmEMC> http://www.arrowantennas.com/sams/sam.html
so the longer one is split in two and screwed back with the set screw in the middle?
I would guess that it comes with the set screw...
I believe he uses SS for rust prevention, but I was mostly curious on the shear strength
i'd be more concerned about fatigue
BigJohnT: Well, here's the machine that does the tapping... http://www.arrowantennas.com/sams/sam13.html
a true inventor
No doubt... I was admiring all his machines, especially the rod buffing machine he made using skate weheels
good night all
good night alex_joni
Howdy. What's up?
chilling and working on my THC component
hows your project going
Slow at the moment. My wife said I had to clean the workshop and throw out anything older than her.
where to find a 470uF cap on easter sunday
Radio Shack maybe?
that's pretty harsh wildrice
I have some if you want to drive to texas!
texas ain't that far
Long ago I decided that if I need something once I will very likely need it again. So I always buy in quantity. That is why the workshop has such a big junk drawer.
you should see my sho
But try Radio Shack . They will sometimes have the part. Or... Start opening up things and steal one off a PC board.
You can often pull something like that off an old power supply. Just make sure you discharge the caps before poking around.
Optic: knows how to discharge things :0
with my TONGUE!
you could open a tatoo parlor Optic
We were discussing that while eating Easter Brisket. Son-in-law said you could get killed by licking a 9 volt battery. I had him look it up at snopes.
nope, done it many times
Me too. That's the best test.
more danger in lighting your natural methane gas
I told him that what you have to watch out for is opening a disposable flash camera. Those can pack a wallop.
I'm trying to read the manual for my VFD -- rough going
it is in mandern right
JMK wrote it
it is in programmer tongue then
actually, it's just very complete
my linksys switch doesn't talk to my mac anymore, it has a bulgy cap
.45acp between the eyes is the only cure for that
routers seem to have a weakness in their power supplies
all of mine have anyway
Here is my favorite part, my VFD should not be on a circuit that can deliver more than 5000 amps short circuit
they are cheap caps, STORM brand
probably replace with pansonic caps and never have a problem again
my router is heat sensitive
I should probably replace the caps
I tried freeze spray, but that didn't pinpoint the problem
it did make it start working though
* BigJohnT is listening to the Andrews Sisters anyone know who they are?
yes, they are the Andrews Sisters
Boogie Woogie Bugle Boy
LOL and don't sit under the apple tree
ok, wildrice you just showed your age :)
With anyone else but me
I think all their songs were covers of someone else's hits
Yep. I am older than dirt.
now we are rocking to Bondie
There was a time when I would have liked to play Bondie with Debby Harry
54 next weekend here
this place is a regular old folks home
But we are on the bleeding edge of milling!
I try to avoid the bleeding
so far it's just the girls that call me stumpy
they call me dad
they call me grandpa, but their grandmothers used to call me "stumpy"
some young thing said "oh, it's nice that you can still ride a bicycle"
I can still ride a bike http://i47.photobucket.com/albums/f163/johnplctech/HPIM1988.jpg
do motorcyclists get right hooked?
I know they get the left cross treatment a lot
only if you can do 140 mph
I got right hooked on my bike tonight, chased the offending driver down
"I thought you were supposed to yield to me"
fenn_ is now known as fenn
there are so many nuts behind the wheel it is scary
don't know how that's supposed to work, first I knew she was there was when she forced me to turn right
been there before, it sucks
that is why we carry in MO
usually I beat the crap out of the car
Yep, the first thing you need to learn on a bike is how to lay it down.
laying it down is death
and I'm serious
you want to be on top
the second thing you need to know is you can stop faster when you tires are on the ground
first thing you need to learn is to stop, which involves the front brake
I'll take a note of that
so many idiot riders don't know how to stop their bike
I need to practice my cleating
if a biker says "I had to lay it down" it means he did something dumb and lost control
I was conserned when I found out that the rear brake controlled one front caliper but it still stops faster than anything else I own
somebody runs you off the road can't exactly complain if you do $5000 damage to the side of the car, can they?
as long as you're fast enough
btw, cradek I'm getting in the mid 40's for milage on the new wing
much better than the 98
I only get about 35 on mine
48 in the Prius
is the goldwing fuel injected?
that explains it - totally different technology
only the last few years have the good milage
you probably have a lead ..... right hand
that's a car engine :-)
0-140 faster than you can write the check for the ticket
it's bigger than my wifes honda civic
bigger than the engine in the prius,that's for sure
but she does have a 20hp electric motor too
in the integral term section can anyone explain the part after the K sub i in the formula?
[23:55:03] <BigJohnT> http://en.wikipedia.org/wiki/PID_controller
the swoop de do with the t and the 0
I don't know what you call it
yes, that is the integral sign
the accumulated error since the beginning of time
it's summing the error, as cradek says
I thin that that is the sum of the value following it as it goes from 0 to the time t.
ok, that makes sense to this redneck
in a digital control, it is actually a summation
it means the longer the error has been there, the more the integral term grows, so the higher the number gets multiplied by that Ki
unless someone gets all obsessive about it
integral term gets rid of steady state errors
You add the errors up over time and divide by the time
and is somewhat destabilizing
yes it's because of being there for a long time that makes the Iout grow, so the steady state error gets compensated
just a note: you don't understand the de(t)/dt term either, but there is no funny swoop