awallin: You happen to see any of the questions I ask ?
Err, the Dog question, I don't get it: http://www.buzzle.com/articles/brain-teasers-for-students.html
droid is now known as Guest83603
<AR_> <AR> http://img809.imageshack.us/img809/5033/122110202500.jpg
<AR_> <AR> http://img12.imageshack.us/img12/4357/122110202601.jpg
<AR_> <AR> http://img225.imageshack.us/img225/8292/122110202600.jpg
<AR_> <AR> http://img258.imageshack.us/img258/1521/122110202700.jpg
<AR_> <AR> http://img705.imageshack.us/img705/1725/122110202800.jpg
you should scrap this project and send it everything to me to make sure its properly disposed of :D
give me $200 and it's a deal
[02:00:32] <[n0b0dy]> http://www.onsrud.com/xdoc/FeedSpeeds
just came across this ...
i'm a nub so I got nothing intelligent to say
mhaberler__ is now known as mhaberler
(actually some people here say: john porno ;-)
how would you do the macro parsing? re?
they are simple so it won't be hard
now that all required features are in, I'm moving my real machine's pyvcp panel to gladevcp
except for the abort acceleration - I think fixing the busy-wait loop is much better than the tool-change-abort pin idea
hope it will be a good show-off example
mhaberler: toggle actions are great!
ESTOP toggle actions allows you to connect both toolbar button, menu entry and simple buttons to estop trigger
is that a recommendation?
and tracks same state between them
no, i'm just happy :)
I see.. I need to explore this, havent fully gotten it yet. Currently trying to figure how to popup a menu over textview in glade.
add popup menu?
seems like a bug in glade - sometimes it wont open/close subtrees
in the object view for instance
not important, just trying to learn glade and gtk
with actions even menu items become unavailable when needed :)
so that's definitely right way to go
ok, will explore
on a different front.. I'm on your actions branch.
LED: I set blink rate 100msec, it's stored as 0
gladevcp:182: Warning: value "0" of type `gint' is invalid or out of range for property `led-blink-rate' of type `gint'
do you get that too?
I dont understand why the rate isnt stored properly
it's low limit is 100
so if you try to set it to values lower then 100 it's rejected
this happens when you just tick the box near blink rate, and leave the default 100 as is
if you overwrite default value it's ok
could be a glade thing
seems like it displays the default rate 100, but doesnt copy it over if you just tick the box
resolved by typing over rate field
made a wiki faq entry
psha: seems your server is down
power outage on provider network
they promise that it will be beack today
andypugh: hi, did you work on an fpga-based ac servodrive? did you make a power-stage for it?
No, and no.
someone did a 3-phase pwm driver for mesa/hostmot2...
I did do an Arduino-based one, but used a commercial power-stage chip
Ah, I also wrote the three-phase PWM driver for Hostmot2
I think I might have misunderstood the question
I was wondering if there is a power-stage design out there for ac servos which works with the hostmot2/3-phase driver
(In fact, I am writing another Hostmot2 driver now, for the 8i20 AC servodrive.
Well, the Mesa 7i39 might work, assuming that by "AC Servo" you mean PMAC or BLDC
ok, so 8i20 or 7i39 will work? I guess the prices are reasonable so it's hard to diy cheaper
In theory the IRAMS chips should wire direct to the Three Phase PWM outputs of a suitably configured 5i20/5i23/7i43
[13:26:00] <andypugh> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=6880732
One of those chips is the power stage here: http://www.youtube.com/watch?v=oyeJfNg3NfQ
how much is the 8i20? it's not listed in their price list...
looks nice. does it usel hall-sensors first, and then the encoder for sinusoidal commutation?
mikegg: It's on the pdf version at $239
awallin: In that case there are no hall sensors, it is working purely from the Resolver.
I need to write this up, but a typical setup would have resolver and hall sensors wired to the "bldc" HAL component, which outputs either an angle value or three PWM amplitudes to the 8i20 driver or three-phase PWM generator. The "bldc" component handles angle-measure handover in a number of possible permutations. (It will even, if asked, convert from one hall-sensor pattern to any other)
Probably worth mentioning that the bldc hal component isn't out in the wild yet, not even in master
But Matt Shaver has been having good results with it and the 8i20 with some 2kW spindle drives.
I'd like to give that a shot sometime
I still need to sort out a potentially nasty issue with encoder rollover (after a few hours you are likely to lose motor commutation on a spindle) and to get the 8i20 driver handling nvram setups.
Neither are likely to be releasable before the new year, as I am leaving my computers behind.
Feels like saturday.
by looking at what features they have and don't, you can just about pinpoint when they grabbed the emc2 code
ya, they even have a truetypetracer
droid is now known as Guest67313
so... who else is an Engineer in here? http://www.smbc-comics.com/index.php?db=comics&id=2045
heh... I once had the idea of a natural gas powered sterling engine + generator since the apartment I had included the gas in the rent
our old landlord used to pay the water bill. that changed when I bought an above ground pool :)
I'm getting really sick and tired of snapping bits :-/
wru unbreakable bits
what are you using? endmills? high speed steel? carbide?
anyone know where to buy a 1-2KW Stirling engine?
end mills, carbide
L84Supper: catch one of perspective sweedish uboats and take it from there
at almost $8 a pop, it's becoming an expensive "consumable"
what material are you cutting and what is your feedrate?
feedrate is ridiculously slow
how sturdy is the machine
how good are the spindle bearings
any play in the slides
I don't know the answer to that question honestly
that probably is the root cause
there are three there for a start
I don't know how I can improve the tolerance any more.
use larger endmills till you fix things
I just have one piece I need to cut
if I could get to the end of it I'd be happy
I guess a softer material would reduce the likelyhood of snapping
or higher rpm
if your work piece is not secured well that can cause big problems too
that is my weakest point
I need to read up on better ways to do that
get some strap clamps from enco or something
of all the issues I have - getting materials flat and solid is my hardest challenge
[15:36:43] <mikegg> http://www.use-enco.com/CGI/INSRIT?PMAKA=400-2376&PMPXNO=951126&PARTPG=INLMK3
does your machine have t-slots?
not sure what a T slot is honestly.
I'm still pretty green at this
ah, got it
yes - it does have those plates
[15:38:42] <mikegg> http://littlemachineshop.com/products/product_view.php?ProductID=1813
those things are cheap and work OK. place to start anyway
skunkworks: funny how there is no distributor in the US.... now if it burned gasoline in large quantities
there was a miltary sterling generator (portable) that would be cool to see.
skunkworks: I've been going through the distributor links at whispergen and I haven't found one that actually sells the stirling generator they advertise
you'd think they would make it easy to purchase
I don't think they exsist comercially yet :)
lawyers get involved and want them to reduce their liabilities. If they are a 'real' company and claim things about their products while they do not deliver, they can be sued (especially in the US)
most places sell blueprints, though
[15:48:09] <L84Supper> http://pesn.com/2006/03/03/9600241_SunPower_Micro_Cogeneration/
scheduled to hit the European consumer market in 2007 through British appliance distributor Microgen, Inc.
nothing at the Microgen site
We have a 3D printer
we could get someoen to print some of those
plastic is not really a good choice for work holding...
a GPL DIY Stirling engine might be the only way they ever get them out into the wild
is that metal then in the link you sent?
oh yeah, highest quality chinese steel
"highest quality chinese steel" = old US steel cars, appliances, boilers etc :)
[15:59:21] <L84Supper> http://www.magicboiler.com/en/products/whispergen/
how do you get one out of Belgium or the Netherlands?
is there a stirling engine black market? ;)
label it a dishwasher for customs
why not make your own?
2KW will be a little difficult to make...
[16:06:59] <L84Supper> http://peswiki.com/index.php/PowerPedia:Rotary_Moon_Stirling
the plans look simple enough :)
hrmm, they use Nitrogen in their chambers.
I've seen better drawings on 5th grade science fair projects
didn't Dean Kamen have one that burned just about anything?
Where can you buy one though?
wont be on net later, so Merry Christmas everyone!
L84Supper: they seem to have a large website dealing with some 'odd' forms of energy (HHO fuel and such) http://peswiki.com/energy/Directory:Stirling_Engines
elmo40: I saw that one.... I check around every few years... every time it's always "just around the corner"...
[16:39:52] <L84Supper> http://www.ehe.eu/ehe/de/adquirir-whispergen.asp?Cod=2407&nombre=2407&sesion=1347
they seem to be available here
just not for export to the US
they have a twitter channel. http://twitter.com/PESNetwork
seems like people are debunking them ;)
Step 1: Demonstrate efficient and economical Stirling generator. Step 2: Get paid to not sell Stirling generator by oil cartels. Step 3: Profit!
more Stirling vaporware http://www.disenco.com/html/mchp.htm
gotta love vapouware
why is quora popular?
i'm looking at all of these stupid "xyz is now following you on Quora" emails
oops, sorry, wrong channel
Max carnot efficiency of a stirling engine is not very high.
kanzure: wth is it?
please ignore me, Jymmm
kanzure: wth is it?
quora that is
forgive me :(
it doesn't matter
it's just a random website that will die in a year
kanzure: that doesnt answer my question about it's Q&A
quora.com A continually improving collection of questions and answers created, edited, and organized by everyone who uses it.
andypugh: how else can one hope to turn all of their backyard dung into electricity?
it's a site where people post questions and other people post answers
but you need to register...
elmo40: I read the caption too.
That's the advantage, they will run from any heat gradient.
L84Supper: but everything is already energy! e=mc^2. Just make it move faster then light ;)
elmo40: the ABOUT gives more
is it like a wiki for questions? community answers?
read the last section under ABOUT
not liking their analogy about 'if they have done it they can respond to it'
the michael jordan line
[18:09:31] <L84Supper> http://www.hyperionpowergeneration.com/product-purch.html
25 MW electric energy, $50M / 20K homes = $2500ea
well not if everyone runs their toaster at the same time
I want one anyway. All to myself in my underground lair.
heh, eating on schedule :)
[18:12:42] <L84Supper> http://www.nextenergynews.com/news1/next-energy-news-toshiba-micro-nuclear-12.17b.html
hopefully priced better
3, 2, 1, TOAST!
Seriously, I would pay $2500 for a share of my own nuke plant.
andypugh: there are more affordable solutions around
sounds to good since the lifetime is 7-10 years
if you pay for ticket to northern coast of russia somewhere in the middle you may find old power supplies for autonomous lighthouses :)
the catch is that it probably will cost $100M ea to remove and dispose of it safely
and free street light from the glowing leaks \o/ :D
psha: I have heard that they keep getting stolen.
that quora site doesn't link very well. eg: http://www.quora.com/Puppy-Linux?q=linux
you click on the link and the > tag is there :P
as if they can't run the answers through a tag filter
what do NG powered AC units use to run the compressor?
andypugh: they are not stolen - it seem that they are abandoned and then disassembled for valuable metals...
radioactive part is not interesting for target audience :)
L84Supper: I suspect that they don't use a compressor.
[18:21:10] <L84Supper> http://www.gasairconditioning.org/robur_cycle.htm
[18:21:18] <andypugh> http://www.cam.net.uk/~aaa314/electrolux.html
It does seem a bit close to magic.
well the ammonia sounds safe
but it does work well
[18:25:43] <L84Supper> http://www.stirlingenergy.com/
good thing I saved all those 3m satellite antennas from the 80's
parabolic solar reflector to heat exchanger to Stirling generator.... a lot of steps but is 31% efficient
andypugh: magic is fun!
andypugh: I have an old 'gas powered fridge'.
I think my parents have a fairly new one in their caravan.
the only things readily available in the US with ~2KW for off grid are solar panels or windmills
no Stirling engines anywhere.
for 10 years now I have seen these 'companies' claiming to have designs for things but waiting for 'govt approval' or 'investors' to complete their 2,000 kW arrays of solar powered Stirling engines.
Talking of magic: http://questvisual.com/
L84Supper: it seem that my suggestion about disassembling submarine is easier compared to other ways of obtaining stirling engine :)
psha: yes, seems to still be the case
andypugh: now that rocks!
I want german to english
that WordLens even tilts the letters to match where it came from. Unless I am looking at it wrong.
No, it does exactly that
well, it is free to install onto your iPhone but you need to pay to actually use the translation feature
so the iTunes comments tell me.
Yes, I have found that out.
now, if there is one for Android... I would be more receptive to the idea ;)
But, to be honest, £2.99 to do something so amazing is acceptable.
[19:17:19] <L84Supper> http://www.gizmag.com/the-kids-walker-16-metre-bi-pedal-exoskeleton-for-children/16521/
looks safe enough
for the kids!
i've 1.6m is not safe for people higher then 1.6m :)
Oh, I forgot - I have an emc question regarding latency configuration
so the value I get from the jitter test is almost 300,000
the software only allows me to configure to 50,000
you've got to fix whatever the problem is, or find a different computer
this may also not be helping my eating through bits issue
mikeggg is now known as mikegg
redwil: what board, cpu + chipset?
___red___: wow, that is higher then mine! Never thought that was possible :P
for consideration (git master, bug fix): http://www.panix.com/~dgarrett/stuff/0001-interp-allow-comments-on-line-with-EXISTS-function.patch
somewhat old but not completely dead PC
about 1.8Ghz with hyperthreading
dgarr: working on understanding it...
__red__: First thing I would try: http://wiki.linuxcnc.org/emcinfo.pl?FixingSMIIssues
dgarr: with your patch, I still get (what I think is) an incorrect error from g0 x EXISTS[#<a>] y EXISTS[#<b>]
a command like g0 x SIN y SIN works correctly
___red___: what is the mobo? video card?
unknown from here
it's at the hackerspace - I'm at work
I'll look it up for next time I'm online here
hackerspace, nice. I don't have anything like that around here
we just started one
about a month ago
___red___ : just FYI Intel Atom + 945 boards work well and may be found for under $80
Atom + NM10 are working better and cheaper :)
though they are getting phased out
psha: good to know
thanks -=- we may need to custom build a machine to do this
have any NM10 results?
[20:55:09] <L84Supper> http://www.newegg.com/Product/Product.aspx?Item=N82E16813121398
D510MO i mean :)
jthornton now owns one as i know
psha_ is now known as psha
AMD fusion boards start to ship next month with coreboot support promised soon after direct from AMD
so we should be able to tweak them for EMC
and still have soft power-off
coreboot.org it's open source firmware to replace BIOS
crap - gotta do the last of the christmas shopping
or wife will be on the warpath
Tonight however is Festivus, and the hackerspace is having a festivus celibration.
AMD is going to release coreboot and AGESA patches in both GPL and BSD license
I am running a D510MO too. Cheap, silent, fast.
my favorite is the airing of grievances
I do xmas shopping on Dec 27th :P
save a boat load of cash
I imagine you can also decide what to get them by what they gave you :)
Or give them back shuffled.
did someone mention something about the new AMD with coreboot?
YEA Santa brought my new clutch for the tractor... the wife may get her parking spot back for X-Mas
elmo40: AMD has coreboot support for Fusion shipping next moth
mhaberler__ is now known as mhaberler
JT-Shop: Don't fit it before Christmas day, or it will turn into ashes!
the clutch or the tractor?
andypugh: I did find the difference in the clutches they use different flywheels
So, you were forced to go with the expensive option?
Maybe you can earn some of it back ploughing.
the only proper way to fix it... I was amazed how much the old one was worn out when I compared it with the new one
plowing snow maybe
Do you have any fun attachments?
power tiller :)
4' wide PTO driven
post hole digger that is fun too
Sounds like a snowblower would be useful.
we don't get enough snow for that the grader blade usually is good for getting the snow out of the way
you can pivot it on a 30 degree and it pushes the snow off the drive if you go fast enough
But what you really need is this: http://www.youtube.com/watch?v=Jj7ZugSMrHw
that's pretty cool
wonder how they steer it... like a dozer I assume
It is somehow linked to the steering
some of the old dozers had a steering wheel instead of levers
the horse said screw you get off my back I'm stuck :)
Yes, poor horse
I thought it looked like a Fordson
Looks like steering is just two clutches.
(Loinked to the steering wheel)
oh it is a kit for the Fordson
Yes, I was suggesting it as a fun attachment
not enough snow here LOL
Yes, cool but not that cool
did you see the view from my back yard?
oh and a model t conversion too
that had to be a hit in Montana