#robotics Logs

Jun 05 2012

00:07 furrywolf I have a really nice water heater... sitting in the driveway in the rain. I need to re-construct the place for it to go. I have sinks, but there's no plumbing under them. I don't have a toilet nor a tub yet. And not a foot of pipe under the house yet either. But there's pressurized water in the pump shed, and the panels on the roof are mostly plumbed...
00:12 rrywolf needs a helper.
00:21 rrywolf curls up next to katsmeow-afk for bed
06:08 katsmeow-afk no
06:21 cjgaus hey guys how are we all
06:21 rizlah Mucho grand�
06:21 cjgaus :)
06:22 rizlah Not sure if the spelling is right there, but you get the message.
06:22 cjgaus very cold here in Australia
06:22 cjgaus i sure do :)
06:23 rizlah Surprisingly enough, fi is quite hot lately. Summer here is very nice
06:23 cjgaus lucky guys you are
06:23 cjgaus ive been staying inside learning my arduino
06:24 rizlah What are you working on with it?
06:25 cjgaus a l293d dual h bridge board from rkeducation
06:26 cjgaus http://www.rkeducation.co.uk/documents/instructions/L293DpcbComponentListandInstructions.pdf
06:26 cjgaus is a pdf of the layout
06:26 cjgaus is quiet a tiny board
06:27 rizlah Looks interesting
06:28 cjgaus yer its been a challenge for me
06:28 cjgaus as im a beginner
06:28 cjgaus i got both motors finally working and going in one direction
06:28 cjgaus bug i think my code still doesnt look right
06:28 cjgaus http://www.pasteit.com/17881
06:28 cjgaus but*
06:30 rizlah Are you sure your pin numbers are correct?
06:30 cjgaus yer from what i have read from the layout yep
06:31 cjgaus what i dont get is that when both inputs are low the motor is suppose to stop not go forward yet it does lol
06:39 cjgaus wiring must be wrong
06:39 cjgaus it has to be if im coding one motor on low and it runs
06:42 zlah needs to organize > 300 bookmarks,
06:56 cjgaus hmm i wonder if its the way the rk education board is designed
06:57 cjgaus seems when i change one motor to high and low and the other to low and high they both spin in opposite directions
06:59 katsmeow-afk that pcb is not a great layout: it has no cap on the 7805 input, and C1 does not need to be so far away either
07:03 katsmeow-afk if a motor current causes the input of the 78L05 to drop below 8v, the 5v will fall out of regulation, and the L239 may work improperly
07:04 katsmeow-afk a capacitor, at a minimum, will keep motor spikes from causing excessive voltage drop
07:06 cjgaus funny u mention that just noticed the 7805
07:06 cjgaus my version of that circuit does not have the 7805
07:06 cjgaus i just have a cap
07:07 katsmeow-afk you also do not have the screw on the terminal block labeled "power switch"
07:08 cjgaus oh i got that
07:08 katsmeow-afk oh, they they really have mixed up pcb versions with no clue
07:10 cjgaus yer lol
07:47 katsmeow-afk http://www.fisherauction.com/upcoming-auctions/all-auctions/auction-detail/?id=179546
07:49 rizlah Not very big tbh
07:51 katsmeow-afk Stephen Colbert gave a tip of his hat last night to Mitt Romney for releasing an iPhone app with the misspelled phrase "A Better Amercia."
07:52 katsmeow-afk we can debate whether Obama was born in America, but there is no proof he was born in 'Amercia.' I heard he was born in 'Kanye.'"
08:02 genesis we only can judge a man for what he does , obama does shit , isn't he ?
08:06 katsmeow-afk i think he does more
08:07 theBear i think that sentence doesn't make sense... "does shit, isn't he" ? no no no
08:08 katsmeow-afk i think it's amazing a presidential campaign misspells the name of the country they want to be president of
08:09 theBear any democracy it doesn't matter, the majority of voters are guaranteed too stupid for that
08:09 Helios What about a cyber democracy where you could vote anyone from Facebook as world president?
08:09 tsmeow-afk
08:10 theBear then you'd have an iron clad guarantee noone intelligent could ever vote
08:10 Helios Would you trust just any old tom dick and harry or would you prefer to vote in one of two pre-screened, pre-brainwashed puppets?
08:10 katsmeow-afk as long as their facebook comments could not be deleted, i'm good with that
08:11 theBear really kats ? you subscribe to that mess ? oh dear, there really is no hope
08:11 katsmeow-afk i think that the comments in writng online for all to see, is a good thing, it would put a stop to lying to get votes
08:12 katsmeow-afk no politician can start with a lie and finish with the same lie
08:13 katsmeow-afk it might even be a reason for me to sign up for facebook, because now i assign it to 127.0.0.1
08:14 theBear records of lies make no difference now, tv 'news' even plays them back side by side 1000 times before the election and/or after depending on when the lies are proven or broken
08:16 katsmeow-afk not here, there's no news of "town hall meetings" or email spam, or robocalling , no transcripts of anything
08:17 katsmeow-afk bbl
08:18 theBear doesn't matter, it does nothing
08:55 theBear hmm... i used to drink at the slyfox
11:50 furrywolf rain finally seems to have stopped, for now at least...
11:51 furrywolf Storm Total: 2.75 in
12:19 Steffanx ha mr KongfuPanda
12:20 KongfuPanda Steffanx, hola !
13:14 furrywolf "Firefox 13 now available for download" seriously... what the fuck? do they think bigger model numbers are better or something?
13:15 Skwint they just like breaking BC
13:15 Tom_itx damn they're getting as bad as ie
13:15 furrywolf BC?
13:16 Tom_itx they screw up cookies and history every time they upgrade too
13:16 Tom_itx damn their ass
13:16 LoRez backwards compatibility
13:17 furrywolf ah
13:17 rrywolf usually thinks of bc as a handy calculator program, but that didn't seem to fit the contex
13:21 furrywolf one of the reasons I use debian is I like stable, tested software, that's released when it works. I can't imagine how quickly firefox is going to get even crappier when they keep rushing it out the door every month...
13:21 furrywolf maybe they should skip releases entirely, and just give a git repo. That'll make it even better!
13:26 furrywolf bbl, errands. need to pick up a couple bags of potting soil.
15:24 furrywolf argh, yesterday was pouring rain, now today is too fucking hot!
16:37 gongoputch I actually really like the shift to SQLite for storage in the newer FF's
16:38 gongoputch Tom_itx: programmer arrived. thnx.
16:39 gongoputch Which 'mega' chip would the general recommendation be if I wanted to screw around with this : http://www.obdev.at/products/vusb/index.html virtual USB stack?
16:51 ace4016 they mention the ATTiny2313
16:56 Helios I think a Raspberry pi would be an awesome robot brain when combined with 595 chips and webcam video feed as its ghz capable
16:56 Helios Like remote control robot walker that level of portable computing
16:56 Helios And open source
16:57 Helios Unlike an Iphone which would be hard as fuck to hack into a robot brain because it is closed source.
16:57 Helios Personally I like arduino for simple robots
16:57 ace4016 root the iphone and it's just becomes a piece of hardware actually :P
16:57 Helios Can you turn an iphone into an arduino?
16:57 katsmeow-afk lol
16:57 Helios Analog Digital conversion and everything?
16:58 katsmeow-afk you prolly could, but it's a pricey ARM7 (?), why would you?
16:58 ace4016 i don't think there are enough available ports to tie into; also, at that point, you might as well just buy a cortex A8
16:59 ace4016 beagleboard uses a cortex A8 iirc
16:59 ace4016 cheaper than an iphone too
16:59 katsmeow-afk ports are accessories, just glue a 74lvx374 to it and you have a port
16:59 ace4016 and has readily available ports
16:59 Helios The point is open source may be out of date compared to new ass corporate bullshit only the rich can afford but it uses yesteryear's model and ease of code, models, instructions it allows much faster development
16:59 Helios You can make your own reprap for instance
17:00 Helios The arduino is nice because it has these little sockets for all its inputs and outputs clearly labelled.
17:00 Helios USB in code done
17:00 Helios VERY convenient to use
17:00 katsmeow-afk usb is propietary
17:00 Helios Make your own and you'll have wires everywhere not knowing what connectors etc.
17:00 ace4016 that's not true :D
17:00 Helios You mean arduino has to pay the makers of USB royalties?
17:01 katsmeow-afk afaik, yeas
17:01 ace4016 people make those arduino boards; you just have to label them yourself and such
17:01 Helios But a USB slot costs like $2
17:01 Helios IT should cost 2c
17:01 Helios Most of that percentage is from royalites
17:01 ace4016 now you know why it cost $2 instead of $.02
17:01 Helios Like Philips makes a penney off every DVD CD BLUE RAY you've ever owned
17:04 Helios That's billions all added up worldwide thanks to their mineral mining rights
17:04 Helios Tiny flake of mineral for a penny
17:04 ace4016 a lot of companies make their money by either licensing or making critical components :P
17:04 ace4016 like most CCDs are panasonic
17:04 ace4016 even if it's a sony camera :P
17:04 Helios Chip licensing activation hardware sounds like a good industry
17:05 Helios Like DRM within chips
17:05 Helios Critical component eh
17:06 ace4016 while it would be good money, the thought is evil and should be forever stricken from the records before someone actaully tries to implement that BS (they already are actually...sadly)
17:06 Helios What locking out reprogrammable chips into giving up their source code?
17:06 Helios like on your credit card or sim phone?
17:06 Helios A computer that won't tell you your own number
17:06 Helios but has it
17:07 Helios but won't tell you it
17:07 Helios unless you have the decryption key
17:07 Helios hard thing to get now
17:07 ace4016 they have ideas of embedding DRM into hardware so that you won't be able to activate/use hardware without proper credentials and verification
17:07 ace4016 i forgot where i saw it trying to be implimented
17:12 Helios Eventually the chips will just be so small and fiddley they'll lax the chip anti hack software for faster better running
17:14 Helios These companies need to stop fighting and simply come up with the ttoally integrated CPU/RAM/Motherbord io ports one chip
17:14 Helios They're afaid of this because the cartel ensures one of 7 companies or more share the wealth by each owning a slice of the PC
17:15 Skwint wasn't palladium or something the wintel hardware drm attempt?
17:17 Helios I don't know, I heard something about remotely disabling your monitor chip
17:17 Helios using the new HDMI cables now has bi-directional feed
17:18 katsmeow-afk the video chip, not the monitor
17:18 Helios yeah
17:18 Helios Hang on two chips here
17:18 Helios one in the monitor
17:18 Helios one in the graphics card
17:18 Helios If its the GPU its Nvidia territory
17:19 Helios If its in the monitor, likely LG, Samsung, Sony something like this owns the chip
18:10 Tom_itx holy moly
18:10 Tom_L http://www2.electronicproducts.com/Designing_a_firefighting_humanoid_robot-article-FAJH_Maxon_Jun2012-html.aspx
18:29 rue_mohr http://hackaday.com/2012/06/05/tearing-apart-a-hot-glue-gun-for-a-3d-printer/
19:11 rue_shop I'm sorry kat, but I'm not comfortable with small pins, even if its a 1" grade 8 pin
19:11 rue_shop I wonder what 2" round stock is worth new
19:12 zhanx just scored free tickets to a nascar race. Never been to one, should be fun
19:12 ace4016 nascar seems really boring
19:12 zhanx i will find out
19:13 rue_shop zhanx, bring me back some 2" round stock, see if you can get peices 8" or so that aren't busted up too much
19:13 ace4016 i'm not much of a spectator though :P
19:13 zhanx lol
19:13 rue_shop you like to jump in and run with them?
19:13 ace4016 i prefer playing sports to watching them
19:14 rue_shop rue_mohr, order stuff from princess auto if its still on sale, cutting disks!
19:19 zhanx registered to get on the wait list for a raspberry pi board
19:19 zhanx thinking, new brain for ELF
19:20 rue_shop zoom it 5x and use an x86 processor
19:20 rue_shop I think I make large robots, but I dont
19:21 zhanx not really
19:21 rue_shop I'm just in an area where people seem to have a habbit of making palm sized robots
19:21 rue_shop compared to the robots of the vancouver robotics club, my 8.5x11" robot is big
19:23 ace4016 palm sized is cheaper and easier (in some cases) :P
19:23 rue_shop hmm annoying
19:23 ace4016 typically requires less energy to move too
19:24 ace4016 powering a 12' robot might require a chemical power plant
19:24 rue_shop I dont really have all the plastic stock plastic to make a plastic mockup, and I cant weld the plastic to the metal I have
19:24 rue_shop ace4016, 2hp engine
19:24 rue_shop :)
19:24 ace4016 hehe
19:24 rue_shop thats with like a 60% safety margin
19:24 ace4016 some people don't want to mess with chemical power plants; want it to be all battery
19:25 ace4016 which is technically easier if you don't want to deal with engines
19:25 rue_shop trying to find a sumpless 2 stroke
19:25 rue_shop (boat engine)
19:25 ace4016 but makes things much harder in general
19:25 rue_shop I dont care what powers it, cause I can change it later
19:27 rue_shop I dont think the hardware store has 2" wooden dowel
19:28 Tom_itx zhanx, what track?
19:29 zhanx pocono
19:29 rue_shop whats 2hp in kw?
19:29 Tom_itx it's an odd track
19:29 Tom_itx tri oval
19:29 Tom_itx iirc
19:30 Tom_itx all different corners
19:30 Tom_itx hard to set up for
19:30 rue_shop 1.5kW
19:31 Tom_itx kansas is supposed to be one of the best spectator tracks due to full track visibility from all seats
19:33 Tom_itx that's this coming weekend...
19:33 Tom_itx you should have a good time
19:34 zhanx fun
19:34 Tom_itx i think i've seen most of their tracks except out west
19:34 Tom_itx been on lowe's
19:34 Tom_itx drove by the rest
19:34 Tom_itx been thru most of the shops
19:58 rue_shop gen needs a new carb
19:59 Tom_itx surging?
19:59 rue_shop once again its puking gas everywehre
19:59 Tom_itx float stuck?
19:59 rue_shop the float is ok, there is a port in it thats not sealing
19:59 Tom_itx hole in it?
19:59 rue_shop no foats fine
19:59 rue_shop checked it before
19:59 rue_shop its an updraft carb, and its a nightmare
20:01 katsmeow-afk rue, grade8 is 2x the strength of common steel, and for each interdigitation in the hinge, you get the pin's shear strength, so 2 -!�!�!- is 4x , 4x using 1/2" grade8 is 312,000 lbs of shear, so imagine doing -!�!�!�!�!�!�!�!�!-
20:05 katsmeow-afk i have broken, as in pulled on so hard the cable broke, new 1/2" steel cable, doubled around a pulley on a 1/2" grade8 bolt, and not bent or sheared the bolt
20:07 katsmeow-afk afaik, i had ~32 tons on it
20:28 rue_shop I'd have to use a grade 3 or it would eat thru the hinge plates
20:28 rue_shop also, the less holes I have to drill the better....
20:28 Tom_itx get better hinge plates?
20:28 Tom_itx bushings
20:28 rue_shop these are just counterpoints, I dont know wehre the balance is
20:28 Tom_itx something
20:28 rue_shop oh yea
20:29 katsmeow-afk 2" is a massive pin, lots of friction too, and heavy
20:29 Tom_itx could be hollow
20:29 rue_shop haha I pulled out the bearsing to look for something, forgot what I was looking for, put them away and mowed the lawn
20:29 Tom_itx 4130 could be hollow
20:30 Tom_itx rue wouldn't pay for that though
20:30 rue_shop 7R12, wonder what size this bearing is
20:31 rue_shop 3/4" id...
20:31 rue_shop 1.625" od...
20:31 rue_shop the great thing about the 7R12 is that you can press fit 1/2" EMT into it
20:33 rue_shop I wonder how much they cost, I'd like 4 for a mockup
20:39 Tom_itx how wide is it?
20:40 Tom_itx http://www.vxb.com/page/bearings/PROD/Kit13667
20:44 zhanx rue_shop: i will check to see if i got some 3/4" bore bearings laying around for you tomorrow
20:45 zhanx bet i do
20:47 katsmeow-afk he wants 2 inch bore :-/
20:47 zhanx that is easy
20:48 katsmeow-afk we are talking 3 inch OD, plus the bearing mounts too
20:48 zhanx too easy
20:48 katsmeow-afk too big
20:48 katsmeow-afk unless he is lifting cars
20:48 zhanx reminder I work with big stuff
20:48 katsmeow-afk ok, you do, but rue's 12ft mecha has only 2 inch pipe for bones
20:48 zhanx heck i got 12 2" bearings with 4 bolt mounts on them
20:49 katsmeow-afk i got 10" OD double taper roller bearings for my lathe
20:49 katsmeow-afk :-P
20:49 zhanx i can do up to 8"
20:51 katsmeow-afk http://www.globalindustrial.com/p/motors/bearings/double-row-spherical-roller-be/120mm-bore-180mm-od-60mm-w-steel-cage-w33-c3-irc
20:51 katsmeow-afk naturally, i paid only scrap prices for mine, they are normally over $100 each
20:51 zhanx rue could make his own
20:51 furrywolf still too hazy out to see the transit of venus.
20:52 katsmeow-afk yeas, non-tapered rollers are trivial if you have a lathe
20:52 rrywolf has a la
20:52 zhanx which rue can make
20:53 furrywolf I can probably fit my entire lathe through the ID of your spindle bearings. :P
20:53 katsmeow-afk heh
20:53 rue_mohr http://www.electronicproducts.com/images2/FAJH_Maxon_1__Jun2012.gif
20:53 rue_mohr there using universals for the 2 axis joints...
20:53 zhanx yep
20:54 katsmeow-afk i wanna video humans seeing that walk down the street here
20:54 rue_mohr is that a 12R7?
20:54 furrywolf rue_mohr: what're you using for actuators for your joints?
20:54 rue_mohr pneuamtic mulscles
20:54 rue_mohr didn't you see the youtube video?
20:54 tsmeow-afk turned rue onto air muscles
20:55 zhanx rue was very turned on by them
20:55 furrywolf I don't use youtube, so... no.
20:56 katsmeow-afk http://www2.electronicproducts.com/Designing_a_firefighting_humanoid_robot-article-FAJH_Maxon_Jun2012-html.aspx
20:56 rue_mohr yea
20:56 rue_mohr the joints are like that dancing robot
20:56 furrywolf pneumatics is going to be interesting, as you have compressable working fluid, and joints will be hard to position at times.
20:57 rue_mohr yes
20:57 rue_mohr built in compliance tho
20:57 rue_mohr meaning its easier on the frame
20:57 furrywolf mount the valves right at the actuator, and plan on tuning a pid loop for every joint.
20:58 rue_mohr http://www.youtube.com/watch?v=z2xWgEdiTwc
20:58 rue_mohr furrywolf, watch my video
20:58 rue_mohr thats half a working servo
20:58 furrywolf does it work without proprietary plugins? :P
20:58 rue_mohr I need force sensors to do the complimentrary muscle
20:58 rue_mohr you should be able to download it
20:59 furrywolf also, my internet connection, from about 4:30pm to 11:30pm, can't do anything with video.
20:59 katsmeow-afk For critical joints like those in the knees, 200-W motors are used. ... and uses 12 motors just in the legs (there will be another 12 in the arms and hands ... that's 4.8 kw if all the motor legs are on at once, like running
20:59 rue_mohr furrywolf, well its a pneumatic muscle that operates with washing machine valves
20:59 furrywolf complimentary actuators give more precision, but less efficiency.
20:59 rue_mohr with an avr doing the loop control
21:00 rue_mohr it works AWESOME
21:00 furrywolf the higher the pressure when you vent, the more energy is wasted. pneumatics can quickly get very inefficient...
21:00 rue_mohr complimentrary gives something more important
21:00 furrywolf heh, I can't even load the youtube page now, much less a video.
21:01 furrywolf 26% packet loss.
21:01 rue_mohr furrywolf, the power/weight ratio is fanominal with this
21:01 rue_mohr furrywolf, get rid of your damn wifi and run a freaking wire
21:02 furrywolf the power/weight ratio will go down a lot if you include the compressor and prime mover.
21:02 rue_mohr not enough to matter
21:02 rue_mohr compared to the robot the engine and compressors are nothing
21:03 furrywolf well, if you think it'll work... I just have experience trying to do mobile pneumatics, and have found air consumption/efficiency to be the biggest problem.
21:05 furrywolf work out the displacement of a full load, full stroke on a joint (say moving an arm upwards with something heavy)
21:07 rue_mohr furrywolf, air muscles are also the only way I can pull the project off in a $240 budget
21:07 furrywolf ... ouch.
21:08 furrywolf would a tether be unacceptable?
21:10 rrywolf tries to figure out if that's an air muscle or a ribbed co
21:12 furrywolf those will work, but I suspect you'll find that rapid movement of complementary pairs of them needs a LOT of air.
21:12 rue_mohr I hope so
21:12 furrywolf at least for joints with any load of them.
21:13 rue_mohr the larger volumes of air will increase the effective resolution of the valves
21:13 Tom_itx orlok should be at his telescope now with a sun filter
21:15 furrywolf still too overcast here to see anything
21:17 orlok Cloudy...
21:17 ace4016 with a change of meatballs
21:18 ace4016 chance*
21:18 rue_mohr 'and rolled out the dooor...'
21:20 furrywolf bbl, going to go pick up a sandwich, too exhausted to prepare food again.
21:21 katsmeow-afk that's what gardens are for: you take a stroll and munch as you go
21:21 katsmeow-afk cept for corn, that hasto be dunked in hot water so it can melt the butter
21:21 rue_mohr and for fat or lazy people, the raised garden bed was invented
21:21 katsmeow-afk and potatos
21:22 rue_mohr corn is ok raw, but potatoes are only for the trying
21:22 katsmeow-afk i thought the raised garden was inveted for the same reason raised septic drain fields were inveted: drainage
21:22 rue_mohr they add extra heat too
21:22 tsmeow-afk
21:22 furrywolf nothing ripe in my garden right now... will be a few more months.
21:23 rue_mohr greenhouse
21:23 rue_mohr :)
21:23 katsmeow-afk nothing PLANTED in my garden yet :-/
21:23 rue_mohr feeling abused yet?
21:23 furrywolf actually, I should have artichokes this weekend.
21:23 ace4016 i don't have the soil prepared for my garden :/
21:23 furrywolf they're getting about ready.
21:23 ace4016 i got lazy
21:23 ace4016 and fat
21:23 katsmeow-afk i do have another winding jig almost done
21:23 e_mohr wits to see all the new goo
21:27 rue_mohr ^a
21:27 katsmeow-afk wits to see all the new goadies?
21:28 rue_mohr ^o
21:29 rue_mohr a<-Back Space
21:29 rue_mohr at some point, the repairs are harder than throwing it out and gettng a new one
21:38 katsmeow-afk hmmm
21:42 rue_mohr I think I came up with 4.5 hours to put on my timesheet at work
22:01 katsmeow-afk how much clearance should i have tween wire and rotor? other than "as little as possible" , there may be rotor wobble
22:05 rue_mohr 1mm?
22:11 tsmeow-afk
22:12 tsmeow-afk is eating di
22:13 katsmeow-afk 1mm = .037"
22:17 katsmeow-afk i did a look-see pass thru where i'd haveto put a garden , other than the roof, and there was constant baby grasshopper jumpings
22:29 furrywolf my roof space is all reserved for panels.
22:35 katsmeow-afk arg, i got template all over, including in dinner
22:56 rrywolf helps katsmeow-afk by getting wolfy fur all over her
23:01 katsmeow-afk See the complete list of bugs fixed by the new version. https://www.mozilla.org/en-US/firefox/13.0/releasenotes/buglist.html
23:03 Tom_itx did it fix em all?
23:03 furrywolf lol
23:04 katsmeow-afk it listed them and claims it fixed them all
23:04 Tom_itx it wasn't 2 weeks ago it wanted me to update too
23:05 Tom_itx so it seems anyway
23:05 furrywolf we could sell a collectable card game like that... gotta fix 'em all!
23:06 Tom_itx aparently 13 is current for windows and 12 for linux
23:08 katsmeow-afk all i can say is it's about time we got a lucky number
23:08 rrywolf curls up on katsmeow-afk's lap and y
23:09 tsmeow-afk pulls the pasta out from under the f
23:09 rrywolf curled up on katsmeow-afk's lap, not her past
23:09 katsmeow-afk the pasta was on the lap!
23:10 rrywolf carefully squishes under the pasta, so there's a wolfy on a lap and a bowl of pasta (right side up!) on the wo
23:10 katsmeow-afk i never noticed before: postits are 3x3 inches
23:14 orlok hmm
23:15 furrywolf heh, just checked, my chinese clone ones are 3x3 too. I've never bothered measuring... doesn't seem a useful thing to know. :P
23:21 katsmeow-afk ok, that didn't work
23:24 furrywolf that being... measuring postits?
23:26 furrywolf http://humboldt.craigslist.org/tls/3059998675.html yay craftsman ratings... first they rate 3/4hp motors as 2hp, then 3hp, then as 5hp... now they have the Infinte Amp Welder! because this way they can never be out-inflated with their ratings!
23:39 rue_mohr hahah thats peachy
23:39 rue_mohr 120V 15A
23:39 rue_mohr hmm
23:40 rue_mohr 100A at the top for 20% duty cycle
23:40 rue_mohr what good is anything less than 100% duty?
23:41 furrywolf most welding is less than 50% duty. you spend time moving around, starting a new weld, changing rods, etc.
23:41 rue_mohr I'm guessing the engineer said 100A welder and marketing said NO ITS INFINITE AMPS!
23:41 furrywolf I just love the labeling "infinate amp welder"... I'm sure they meant infinitely adjustable, but some marketing type left out that word...