theorb is now known as theorbtwo
Fox_Muldr is now known as Fox_M|afk
I shaved 60 seconds off this part... nice to have a cycle timer
man these gecko drives are hard to kill
sparks keep flying out of mine and it still works!
I killed one once and Mariss replaced it no questions asked
I like the 203v drives fast and smooth
the negative terminal on my DC power supply...should that be common with say case ground?
I don't think I did but what do I know
you guys see this? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180532407077&viewitem=&sspagename=STRK%3AMEWAX%3AIT
[00:29:24] <Jymmm> http://maps.google.com/maps?q=07006
For NJ, he sure has broken english.
what are you trying to say Jymmm ?
made power cable for "new" scope, found table to prop scope where it would reach, hooked up scope, started up mill, mill works perfectly
what do you think cradek
320 seconds down to 270 seconds cycle time
no I still think it's a brush issue or similar, but I'm short on good evidence
I hate when that happens
* JT-Hardinge wanders in to eat dinner
huh, my .2495 reamer made a .2489 hole
you sure your mic is accurate?
using a probe - pretty sure because I have a bore standard I check it with
no problem, it's supposed to be a press fit anyway, I'm just surprised
it's an old reamer - maybe it's just worn.
be interesting to see what is the larges gage pin that will go through
yeah unfortunately I don't have anything except dowel pins
I have a .74890 ceramic bore standard and I can probe it and always get .74890 +- .00005
although the ballscrews might act a little different at different diameters, if they have any kind of cyclic error
what are you making cradek?
cradek: how did you install the packages on the computers at the fest?
looks like you must have gotten all the dependencies and put them on my keychain drive?
say goodnight Gracie
skunkworks: yeah I think that's what I did
anyone done any latency jitter testing with the Phenom-II's 3,4 or 6 core?
geo01005_home is now known as geo01005
I should do a test with my i5 quad core with nVidia 7950 card and 4Gb RAM.
elmo40: I'll run over it with my car for the environmental test
cool. you drive here or I ship it there?
Do they make one-way check valves for copper pipe?
what about the carbon footprint from this test?
yes, they do make one way check valves for copper pipes
Well shit, if you're gonna ship it, just don't put it in any bubble wrap, that would be a good test.
I install them for every irrigation setup I do
elmo40: like for 1/4" copper?
here is a simple one http://www.wetearth.com.au/Spring-Check-Valves-Brass
Hmmmm, it has plastic parts in it.
I wonder how much heat it could take
it is a plastic ball/cone thingy held in with a spring. the flow in one direction equalizes the spring allowing flow. once it goes the other way it closes. some have springs, some don't. the ones that do not may not work all that well in every setup
should take hot-water type heat... plastic doesn't melt at 100C
this not for water?
It is for water/steam
[06:20:09] <elmo40> http://facepwn.com/posters/school.jpg
steam? that is a different story... how much of it do you need to stop? 100%?
It will be thrown in a fire.
So figure close to 1000F
they do make brass ones
no pressure though
not 100% back flow prevention.
prob around 90%, though
that should work
ball in cage?
just a flap
heh, I like the ball in a cgae better
This might work http://www.google.com/products/catalog?q=brass+check+valve&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&cid=15446153763823772873&ei=MVo9TLvRG4WcsQPQ1LShDQ&sa=X&oi=product_catalog_result&ct=result&resnum=5&ved=0CDgQ8wIwBA#
gee, no tinyurl?
not from me
just click it
tiny or other obscured urls can be to bad sites
I want to know where Im going
you can use preview.tinyurl.com/blah but kinda defeats the purpose
How much water do you think 1/2" copper pipe 10ft long could hold?
assuming it's 1/2" ID
water and flashing to steam can be dangerous
Yeah, I'm working on that part still =)
archivist: oh come now... don't be so pessimistic. besides, are you not using Linux? bad sites mean nothing unless you are using IE ;)
I think they make temperature values. Maybe that can be used to inject cold water
what are you making
a pseudo water heater.... make a camp fire, shove in a coil of copper tubing
just enough to shower or wash dishes
use a blader to gravity feed water
use the heat to shove up to ________________, then to shower head.
keep it pumped, else you will get hammer
they have those shower valves that regulated temp
but I haven't looked that far yet
what temp does copper melt?
its not the copper melting that will be the main problem
the water temp?
water will keep the copper cool
latent heat of evaporation is useful there
well campfire coals can get in the 3000F range
as long as the pipe is never dry that cannot happen
true, but you never know. (worse case scenario)
steam is an excellent heat absorber. copper won't melt if there is steam in the lines
worst case? use iron...
that would scald the user, it must never run dry
yeah, needs bypass
that what the __________________ was for =)
no, add flow to reduce temp
if it's a 5gal bladder, that's it.
dont bypass that leaves the pipe to boil dry and cook the user
just use the Sun! black bag will heat enough for showering water
not real campers if they need warm water
elmo40: try that in 40-50F temp =)
archivist: I need my hot showers
and those around me need me to need showers too =)
Call me anythign you want =)
[06:56:11] <L84Supper> http://www.allnesales.com/0750.pdf
valve shuts and pressure builds up back feeds bladder.....
doens't "need" to feed back into the bladder
maybe a runoff
I was thinking a mix system
just liek you don't use 100% hot water in the shower
wasted hot water is run through a peltier where the heat is converted to electricity to power your electric socks
just an idea
why submerge the pipes into the fire?
have them on top of the flames
not as hot
[07:04:11] <L84Supper> http://www.houseneeds.com/shop/HeatingProducts/HydronicHeating/mixingvalves/honeywellmixingvalvesbuy.asp
Reliable performance at minimum flow of 0.5 gpm
where do you see that?
oh I see it now
year / yeah
1/2 gal per minute is not bad actually
was surprised it works at that low a flow rate
not as hot? dude, you only need 20 or so degrees warmer then room temperature for a decent outdoor shower...
Flow reduction in seconds if cold water supply is interrupted.... somebody steps on the cold water hose
[07:08:54] <L84Supper> http://cgi.ebay.com/American-Valve-Hotstop-Anti-Scald-Shower-Head-/180260689138?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item29f85fd4f2
maybe I can take one apart and see how they do it.
here are the guts http://cgi.ebay.com/MIXED-LOT-10-WATER-VALVES-w-ANTI-SCALD-SHOWER-VALVE-/380108143310?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item588035face
you'll probably find something used
cool, at least a cheaper alternative may be available.
[07:12:59] <L84Supper> http://www.amazon.com/Products-Shower-Anti-Scald-Head-Children/dp/B003AUIB8K
safe and fun!
I guess and EMC solution could have 2 servo motors running 2 pumps, one for hot and one for cold with a temperature probe for feedback to the servos
I think an RV would be cheaper =)
any encoded dc motor experts here this morning? :)
depends what you mean by encoded motor and experts
i have a selection of motors to burn out-i mean put into my machine and i need to set them up properly as they all run differently
i.e. i have 1 4 pin stepper
1 11 pin resolver
make that 2
and and a dc encoder i'm trying to find the board for atm
oh and an 8 pin resolver that seems to only have 2 sensors
* redwizard_kde thinks that shouldn't work
[11:07:21] <awallin> http://www.anderswallin.net/2010/07/waterline-toolpath-experiment/
awallin: hehe "Coming to an open-source CAM-system near you this summer/fall."
alex_joni: yep. just keep waitin...
will do ;)
things are moving along nice these days on the cam front
awallin: that rocks! waterline toolpath
pycam has got it, but I heard it's very slow
the kd-tree search for drop-cutter needs a re-write for this push-cutter stuff, then it will be able to do big STL files in seconds
whats it do in plain english?
how do you speak in ##electronics???
register your nick
and log in
i registered this nick
and realised the email i supplied was borked
i've fixed it now but i gotta wait a day before they drop the reg and i get to have another go at registering lol
Valen: the STL model for Tux for example contains 20k triangles. for any one cutter-location position only about 500 of those triangles maybe need to be tested. The kd-tree data struct and search finds the triangles that overlap with the cutter.
sounds like a bsp tree of sorts
so its a faster way of working out the height of a cutter over a face?
it speeds up drop-cutter about 20-fold
redwizard-nb, join #freenode an op can fix it
thanks, not been on here that long :)
I think I will make a general tree where it is possible to search for overlap in X, Y, and Z. then it will work for both drop-cutter and waterline
awallin: definitely sounding like bsp :P
a range-tree has better time-complexity (but needs more storage), I haven't tried implementing one...
oh right we didnt have those when i was at school :P
hell the teacher didnt know what a bsp was back then
only reason i knew was because i was into the assembler 3d programming scene(how to write a doom clone et. all)
in fact my a level computer studies teacher didnt know oop
he brought in an example of oop one day and showed me and i was like yeah, ok, thats nice, try and keep up lol
of course the following year he wasn't teaching because of allegations of being inappropriate >>
ahh, breakfast http://facepwn.com/posters/vodka.jpg
he would be confused at Object oriented assembly language byL. Dirfman Windcrest published way back in 1990
not quite that would of been published before
i started my a-levels in 1993
that book is mostly macro abuse anyway
my first oop language was turbo pascal
* elmo40 is confused
we had o-levels which became gcse and a-levels
o levels are 15-16 and a levels are 17-18
much derated these days
gcse/olevel for everyone
a levels optional
dependant on gcse
then degree you need points from a-levels to get a good place
i should of done a degree
then i could of been a supervisor instead of a till operator :P
I hear ya
I took 3 years of university. ran out of cash... never looked back
should do something and complete it to advance in pay scale... silly how experience means almost nothing to employers but a piece of paper that will cost you $50k is what they look for
i shall build my manufactory and then construct an empire
I can supply the blueprints
opensource empire eh? openhardware, openmanufacturing, openinventory...
requirements : 3d printer, cnc mill, armature
I am working on a 3d printer
hence in here
I have 3 motors and a control board
need to make the framing now :)
which one are you building
or rolling your own?
and what kind
that 3d printer... umm... the triangle looking one.
the one i'm building
father of genetics
but where do you get the plastic melter thingy?
I want 3 heads for 3 colours/plastic types...
my current plan is 5 heads
building 1 first
two hard plastic (ABS I suppose) and one softer one (silicon based?)
probably going for abs in whatever colours i can source, wax, and a rubber(bendable) material
then i can build chains and hinges
wax? that will be tricky. might need an injector or a valve for that one.
its been done
i just need to look up the spec
strictly speaking as long as its surrounded mostly by other materials i should be ok
the wax is to seperate parts as you build
once your done with e.g. your chain you just pick it up and bend it around a bit and all the wax should break and fall off
hrmm, rubber. that is an option. how to source that material? is it not cured in 'wire' form (or will you use a hopper to hold shredded pieces) then heating it will vulcanize it?
its on the bottom of my list
wax sounds simple enough. why not PAM spray? :P
so no research done yet
priority is the multi-extruder mods
which means a new x-carriage
its gonna be emc operated hopefully
are they working on a 3rd GEN model, the reprap team ?
i think we need more people using current generation
the biggest goal anyone should strive for is extruding circuitboards
ya, they don't use emc. they use something else.
yeah they use typically an arduino setup
[13:53:58] <elmo40> http://reprap.org/wiki/Best_Compromise_Nozzle
it is just gravity feed?
or you force the plastic in like a gluegun?
theres a motor
that forces it in
theres different extruder heads
wade and adrians geared extruder
so a wheel and motor.
those are the 2 most popular
wish i knew where to get those PTFE parts
atm i'm missing nichrome and the PTFE part
other than that mind i'm good to go
anyboy have an idea what electropolishing costs?
anyone else getting a google 502 error with this page? http://www.youtube.com/watch?v=Wnu4lmOnX00&feature=related
redwizard-nb: have you tried this software? 3D image to reprap type gcode. http://www.bitsfrombytes.com/wiki/index.php?title=Skeinforge
i've not got a working reprap yet
still under construction
that video doesnt give me a 502
skeinforge is one of the more common used bits of software but there are a couple of others
or you can roll your own gcode
i now have 2 printers and a scanner to pick up for more parts so i'm a happy bunny :D
hopefully this will give me all the motors i need now plus enough left over for my sons robot lol
gotta sort something out
elmo40: works ok for me
works for me now. tried it 6 times, same error.
now this is cool! http://www.youtube.com/watch?v=Wnu4lmOnX00
redwizard-nb: here is something interesting http://open3dp.me.washington.edu/
"Since pipe threads are tapered 3/4" per ft you will have to either come up with a taper attachments or work out a way to offset your tailstock to get the work axis correctly angled to the spindle axis. "
(someone talking about manual threading)
I notice that these two methods will give two different pitches.
I'm pretty sure using the taper attachment would give the right pitch. I wonder if it even matters in practice.
I don't think I have ever cut a pipe thread on a lathe
(or any kind of taper thread)
cradek, I think it matters to seal properly
ie no added crap and goo to fill the gaps
archivist: bet you're right
I did a boiler washout plug on my southbend the proper way
archivist: also with tailstock offset (driven between centers by a dog) I think rotational velocity is not constant, giving wobbly threads
seems like taper attachment is the only right way to do it
sure, obviously cnc is better :-)
I wish I had taken pictures of the one I did on the southbend, it came out shiny :)
our monarch has a taper attachment that is pretty cool - I think it will do a good 8+ inches of taper.
or maybe it is 4" (it has been a long time)
cradek: I don't think rotational velocity is an issue for pipe threads. they are only an inch in length, depending on the dia of the pipe.
what's the best way to upgrade to 2.4? i tried changing it in the source list and nothing worked after
had to reinstall 8.04 just to get here
see the first link on the wiki front page
since you reinstalled, why not try 10.04 and the available files for the kernel and such?
thought emc didn't work in 10.04
or that's not what you're talking about ubuntu 10.04
there are experimental packages available, but we haven't declared it ready for general use
i better stay away...got troble with 8.04 :)
This is kinda cool... http://www.cnn.com/video/#/video/us/2010/07/13/natpkg.co.fence.knitters.kusa?hpt=Sbin
anyone know why configure fails when checking glib?
because glib's not installed? what's the error message?
it says "error: no -- required until somebody makes modbus optional"
libglib is in /usr/lib
anyone know what the apt-get command is to search repos for glib?
maybe i need glib devel?
last time i build emc was with 2.3.2 and that built fine, but i just try with the latest version and configure fails??
moop: do you have a git checkout?
no, its the source package linked from main linuxcnc.org page
./configure -a (or ./configure sim if you dont want realtime)
then install the packages it tells you
thanks that works, its lucky i just installed ubuntu8.04 to see if the problem was with my other system
will it work with an old debian sarge system?
good, i'm glad it's working for you :-)
i have no idea if it'll work on sarge or not...
i know it works on debian lenny
i will let you know later then
[18:40:20] <Jymmm> http://www.psycho-donuts.com/pickuporder/cartdetail.php
Im just overdosing on donuts tonight :)
hello once again fellow machinists
summes takes its tool on projects
Fox_M|afk is now known as Fox_Muldr
anyone know how to invert an output from pwmgen?, i have defined the parport.0.pin-01-out with a pwmgen signal and tried setp parport.0.pin-01-out-invert TRUE
but the pin seems high all the time??
when will emc2 be with ubuntu 10?
please dont release emc2 on ubuntu10 live cd!!!!
as soon as someone makes a good rtai kernel for ubuntu 10.04
dont do it, it just adds ever more bloat
you should not be watching porn dvds on your mill display
you should not be writing open office documents on your mill display
you should not be browsing the web on your mill display
you should not be running the latests greatest bleeding edge OS on your cnc mill!!!
please revert back to slackware 1.0 distro
moop: you're free to run emc2 on any distro you want
you will need more than a lot of good luck to get it working on slackware 1.0
you need web access on your mill to get online support
Do I want to spend £30 on an incomplete Kurt vice? I know that the USA-ians go mad for them, but perhaps I should get an Abwood (or something complete at the very least)
sure your mill can carry the weight?
I can tie bungies to the ceiling
I have a brand new motherboard and drive. It will happily try to boot from USB. I don't have a SATA or USB CD-ROM drive. How best to proceed, I think. It looks like it would be very easy with usb-creator on 9.10, but I have 8,04
I have "RTAPI: ERROR: could not open shared memory (errno=2)"
when trying to run halscope
im a idiot, trying to use loadrt halscope instead of loadusr!
Fox_Muldr is now known as Fox_M|afk
darren is now known as redwizard-kde
huh, IMTS spam says registration is only $25
I thought it was a lot more when I went (08?)
It seems that this LCD touchscreen might work, and the Vacuum-flourescent display definitely does (which would make a pretty good DRO, actually) so not a total waste of a tenner.
you got it already?
whatcha all doing?
I have had the old cash register thing for a couple of days. I also now have the Atom board. When I say that the display might work, I mean that the backlight comes on and junk appears on the screen.
cradek: SWPadnos: When we started looking at controls, we considered camsoft, power automation and emc, when we told camsoft about emc2, they went crazy and tried to tell us what shit it is. Today i hear, while i was off shift, Power Automation's "Hans" called, asked if we made a decision, and when he heard we chose emc2 said "It's a good control, it's a good choice for what you want to do"
I have not tried to get the LVDS pins on the mobo active, I am still figuring out how to get an OS onto it. A Lucid LiveCD of EMC2 would be perfect about now.
morfic: Difference in worldview between an angineer and a salesman?
maybe the best way to make a sale is to call everything but your own product shit (but that seems unlikely to me)
to make my day even better, Andy from PowerTec called making sure we didn't have any other questions about the motor and drive he quoted
No, you have to present a spectrum, where some things are nearly as good as yours, but 50x the price.
Did you look at cheaper, dumber drives?
considering i get no reply from the yaskawa distributor, this was a "hey we care to get your money" at the very least
wonder if the mill will act nice today, now that I want to cut something
if not I'll wave my scope at it again
andypugh: they only have the one he quoted made for them, and pointed me back to those he had told me should work, just means i have a few companies to contact, preference would be to buy motor+drive at same place, so i rather call Siemens when i do have time
but rest of week i'll be machining again, so i won't have time
BLDC has to be the way to go, I think.
Even though vector drives supposedly get similar results from induction motors.
andypugh: seems to make things simple, is in price range we thought we would be at, has torque we want up to a more than 2x as high a rpm, looking good
I wonder how hard it would be to make Kurt-like top jaws? They have a little spherical seat in them that I can see being tricky.
get close and finish spherical with a ball end mill? to keep it simpler make it a half cylinder, then you can drill a hole from the side and cradle that in there instead of the spherical bit, maybe?
[23:49:08] <andypugh> http://bluechipmachineshop.com/bc_blog/?p=311
I don't even see how they get the tool in.
Having said that, the handle of my dad's Abwood has cleary spent the last 50 years being thrashed with a hammer to tighten it, and shows no sign of distress.
does Kurt actually make hydraulic vises? i am still surprise to see mechanical vises in every shop in the US (I've seen, not that many, but noone ever complains as them being odd balls), never seen a mechanical vise in anything but a hobbyist shop in germany, was a bit of an adjustment
Yes, I have seen them on the Kurt site looking to see how much it would cost to convert the eBay bargain into an actual vice.
andypugh: yeah, pictured it wrong, the whole is only alrge enough for the set screw to adjust the moving jaw, so boring from side would be making things KISS
how much are hydraulic vices?
i never spent much time looking, cause most of the time "Don't look for fancy vises, stock Kurt is already too much, close that book/website"
when i looked for chick vises (that style of millable top jaws, but from Kurt)