#robotics Logs

Sep 09 2013

00:13 GuShH monkers: html5 canvas, javascript... what lese
00:13 GuShH else*
00:13 GuShH of course if you ask, you don't have experience with either
00:13 GuShH so you are still back on square one. what did you expect from asking? heh
00:14 monkers ooh
00:14 monkers yah
00:14 monkers http://spielzeugz.de/html5/liquid-particles.html
00:15 monkers somethin like that
00:27 MrCurious GuShH: you troll
00:46 GuShH MrCurious: that's you!
00:46 MrCurious i resemble that!
00:47 GuShH MrCurious: there's no way to explain, teach or provide what monkers or many others ask within a couple lines on IRC. Most of this stuff takes years of learning, YEARS.
00:47 MrCurious yup
00:47 GuShH At least he's got a vector now
00:47 GuShH Don't see why that is trolling
00:48 MrCurious but, often they can be gifted some search terms to get them on their way
00:48 GuShH --- watching jayleno's garage, episode on his ford galaxie 66
00:48 GuShH MrCurious: he got two.
00:48 GuShH and two highly relevant, flexible ones. could've said "use flash" to screw him over.
00:49 GuShH hrmm you think cats can open sliding windows?
00:49 MrCurious beginning to think i need a welder for steel
00:49 GuShH what type of steel
00:49 GuShH i can has weld
00:49 MrCurious cheap steel
00:49 GuShH how thick
00:49 GuShH mild steel is cheap steel
00:49 GuShH unless you say cheap as in repurposed or from a scrapyard, Tom_itx loves that
00:49 MrCurious thinking maybe 3 or 4mm thick square tbing
00:49 GuShH that's heavy shit
00:50 MrCurious http://letsmakerobots.com/node/38308
00:50 GuShH used 3mm on the lathe stand, couldn't burn it through at 110A with stick
00:50 MrCurious nice cnc build in teh video
00:50 GuShH the stand weighs almost 50KG
00:50 GuShH that looks like tig welds
00:50 GuShH from the first pic, alu
00:50 GuShH cold joints too, but tig.
00:50 MrCurious i have done gas and arc welding
00:50 GuShH otoh the gears looks teel!
00:51 GuShH �probably polished alu
00:51 GuShH can't type very well, cut my index finger today
00:51 GuShH so it hurts when I use it!
00:51 GuShH MrCurious: how much arc time do you have on each
00:52 GuShH I must only have at most two or three hours with stick, continuous arc time.
00:52 MrCurious i had a semester of metal shop in high school, approx 30 years back
00:52 GuShH just an estimate
00:52 MrCurious maybe an hour or 2 total time on arc, and about 30 - 60 minutes on acceteline
00:52 GuShH oxy is too expensive for me and messy in general
00:52 GuShH can't deal with that
00:53 GuShH you get the benefit of being able to cut just about anything though
00:53 GuShH (to be honest you can also cut with stick, but it's nasty)
00:53 MrCurious starting to think if i make the cnc bed move rather than a gantry that combines x y and z it should be easier to make, as wel as easier to align...
00:53 GuShH messy, slow, looks like shit.
00:54 GuShH so anyway I never welded alu, an ac-dc tig worth buying isn't cheap.
00:54 GuShH (I don't like MIG)
00:54 MrCurious no i wasnt thinking of welding al
00:54 GuShH for thick mild steel stick just works
00:54 MrCurious wanted to weld steell so i coulld fabricate te frame from cheap steel
00:54 GuShH can't be simpler
00:54 GuShH get an old buzzbox
00:54 GuShH doesn't have to look good, just has to hold.
00:54 MrCurious dont know i have enough juice in garage to drive it
00:55 MrCurious got 15A 120V
00:55 MrCurious thought those toom 220 at like 45 amps
00:55 GuShH I'll show you one of the worst welds on the stand, before grinding
00:55 GuShH http://gushh.net/tmp/dscn4022f.jpg there.
00:56 GuShH crater hole, stopped way too early, wiggled about, had the amps set a bit low, I could go on and on...
00:56 MrCurious http://www.harborfreight.com/70-amp-arc-welder-68888.html
00:56 GuShH in my defense it's 6013 and they are shit.
00:57 GuShH toom?
00:57 GuShH you want 220v 10A at the very least
00:57 GuShH 110 20A otherwise
00:57 GuShH if I've got it all setup right and I'm not making any mistakes, I don't get over 10A on the primary
00:57 GuShH with 2mm rods
00:57 GuShH (don't ask me in fractions... I forgot)
00:57 MrCurious great
00:58 MrCurious just seperated my 220 line into a pair of 15a lines
00:58 MrCurious 120
00:58 GuShH But I do have 3 phase 220 with 100A service but it's setup for 60A at the house, however... I need to rewire everything, haven't got the money yet for that.
00:58 GuShH So that's why I'm using a 10A breaker, which for 2mm electrodes and a cheap welder, works fine.
00:59 GuShH 2.5mm not so much, you need 15A or so primary on 220 otherwise you get cold joints... But it's so much easier to weld with 2.5 or 3mm
00:59 GuShH it's like butter compared to 2mm
00:59 PraetorianTMOTC GuShH, 2mm is approx 5/64 in :)
00:59 GuShH yes
00:59 GuShH 1.9x I think
01:00 GuShH PraetorianTMOTC: the electrode boxes / baggies state it, I just don't have them around here
01:00 GuShH MrCurious: try to find a used old stick welder instead of buying a new one
01:00 GuShH old ones are copper wound, new ones are aluminum wound
01:00 GuShH higher losses...
01:01 MrCurious given i dont have the power set up for it... i think i will hold off
01:01 GuShH (mine falls into the latter category, did I mention I got a "free" big ass smaw welder but I haven't picked it up yet?)
01:02 GuShH there are smaller electrodes, I think at least one or two sizes smaller... it's just very hard to work with and they're not common.
01:02 GuShH I don't know what you can do with 70A secondary with a 20% duty cycle...
01:02 GuShH tack weld something or fix a broken shovel .... that's about it
01:02 MrCurious i think i will just build with AL and copy off this design
01:03 GuShH aren't 220V outlets in the US setup for 20A?
01:03 GuShH for driers...
01:03 MrCurious i had a 30A 220
01:03 MrCurious i turned it into 110@15A * 2
01:03 GuShH that would've been ideal for a welder
01:03 MrCurious because i have lots of tools that wnt 120, and nothing that wants 220
01:03 GuShH oh well
01:03 GuShH how about your neighbour?
01:04 MrCurious in theory i could fork the circuit to shunt to 220 or 110 depending on breakers...
01:04 GuShH I almost bought a welder like the tiny one from harbor freight, but I didn't... got the biggest single-two phase one I could afford instead.
01:05 GuShH and it's still crap. so imagine how bad those tiny ones must be
01:05 GuShH so... don't waste your money on those
01:06 GuShH electrically speaking just about every chinese tool I've bought has been very well behaved, mechanically not so much
01:06 GuShH at least they've been properly earthed, insulated, etc.
01:07 GuShH the lathe has every single cable color coded and numbered for instance
01:07 GuShH caps are crappy, but that was expected.
01:10 GuShH MrCurious: equivalent to mine http://www.harborfreight.com/270-amp-arc-welder-69029.html ... but you should buy this http://www.harborfreight.com/170-amp-migflux-wire-welder-22-volts-110-amps-68885.html flux core is cheaper in the US and a valid alternative, plus it's a good price.
01:10 GuShH seems the secondary voltage is a bit on the low side though
01:11 MrCurious looks nice
01:11 MrCurious but i have moved past the welder issue
01:11 GuShH welds are not as nice looking, as flux wire is just a lazy man's stick
01:11 GuShH you just went from "I want to do it right" to "I'll just use screws because I can't be arsed to do it right"
01:14 GuShH better get a torque-wrench and some red loctite unless you want your bed to vary every time you look at it.
01:14 MrCurious :)
01:14 GuShH damn half-assed hill billies
01:15 GuShH 271 was red?
01:15 MrCurious work within our means
01:15 MrCurious and i already have the aluminum stock
01:15 GuShH yep, that's a good memory.
01:15 GuShH had to use it a few days ago
01:16 GuShH we also bought the blue one (274?) but it doesn't seem as useful as the green
01:16 GuShH green is great for assembly
01:16 GuShH 20-30 min dry time
01:16 GuShH and it's in between the other two
01:16 MrCurious however... i am not going to rule out using steel...
01:16 GuShH beats the heck out of double nuts and silly lock washers
01:16 MrCurious i should figure out if a friend has a welder...
01:17 GuShH not just a welder... mask (autodarkening seems a must these days) rods, chipping hammer, brushes!
01:17 GuShH and scrap for practice, plus beer.
01:17 GuShH you know, buy him some beer and have him weld it for you.
01:17 GuShH use your head!
01:20 MrCurious there is that...
01:21 GuShH I'd use mild steel, thickest I can get.... heavy, rigid...
01:21 GuShH and cheaper than alu
01:21 MrCurious just tweeted to see if i have friends with welding gear
01:21 GuShH oh so that's what twitter is for?
01:22 MrCurious no. that is me subverting it... its really for sharing with the world just how awesome you are
01:22 GuShH or what kind of sammich you're having
01:23 MrCurious i hate when people tweet food pics
01:23 GuShH I swear sometimes I just want to grab people's phones and throw them against a window or wall.
01:23 MrCurious if its freaky food, like a scrambled egg pizza... then ok, share it. if its just a nice meal on your vacation... keep it to yourself
01:25 GuShH standing in line, starbucks... I just wanted to buy some whole bean coffee so I could grind at home, make my usual espresso without having to deal with the hipsters... and the chick in front of me pulls out her phone, enters facebook... changes status to "in starbucks enjoying coffee" (she was still in line) ... every time I see that kind of behavior I just want to grab their phone and smash their skulls in with it.
01:25 GuShH who the hell cares if you are standing in line or drinking a coffee, nobody needs to know
01:25 MrCurious easy fix...
01:26 GuShH (I don't recall reading "status" I don't even know if you can change your status to any message, I've never used facebook)
01:26 MrCurious borrow said phone
01:26 GuShH but yeah she was letting everyone know where she was and what she was doing.
01:26 MrCurious update status to "in john, dropping a wickid deuce
01:26 GuShH must be useful for jealous boyfriends
01:26 joga foursquare at least makes you mayor of places or something if you visit often enough
01:27 GuShH ?
01:27 GuShH I don't know what you just said, but I'm going to assume you own an iphone.
01:27 joga nope
01:27 GuShH So get lost before I smash your skull in!
01:27 ShH turns
01:27 joga I don't use those things
01:27 GuShH lol
01:27 MrCurious would think being mayor of the mens room would get old...
01:27 joga foursquare is a service to accommodate those "I'm here, I'll let everyone know yayy!"
01:27 GuShH Here's what I found out from starbucks... their "baristas" can't make coffee. it's not that their beans are bad, it's just that they don't know what to do with them.
01:27 MrCurious but it doesnt! who knew!
01:28 GuShH for the money it's an ok blend they sell
01:28 GuShH as whole beans.
01:28 GuShH joga: isn't that what twitter is for?
01:29 joga GuShH, nah it's more of a game in a sense I guess.. uses your gps
01:29 joga never used it but saw people using it a bit
01:29 GuShH how awesome... let's make it even simpler for others to track your ass down
01:30 GuShH "in mcd having a burger" ... so this simply means if some of your so called friends finds out, they might just think you're an asshole for not inviting them, and if you think they'll come over maybe you'll be finishing your dessert by the time they arrive... who the fuck cares where you are and what you're doing then? why is it relevant? so other idiot can hit "like" ?
01:30 MrCurious yeah, like te NSA ever has to ask where you are....
01:31 MrCurious it annoys me they violate our privacy. the least they coud do is let me know if they see a problem pending like overdraft, bad part of town, or personal risk
01:31 GuShH you are all drones to them.
01:32 GuShH do they record your voice when you join the army or any other force in the US?
01:32 joga coming from a person writing on the internet!
01:32 GuShH here they do... just in case, so they can compare your voice and hunt your ass down.
01:32 joga heh
01:32 GuShH joga: it's different....
01:33 GuShH these kids weren't even born when IRC was da bomb
01:33 joga which kids?
01:33 GuShH those using foursquare, twitter, facebook.
01:33 MrCurious i was old when irc was new...
01:33 GuShH and the old men pretending to be young women too.
01:33 GuShH define old
01:34 MrCurious 18
01:34 GuShH that's young, not old.
01:34 MrCurious now i need to fact chceck my ass
01:34 GuShH it's just a finger, won't hurt a bit
01:34 ShH lubes up the fi
01:34 MrCurious IRC was created in 1988.
01:34 MrCurious ok, i was 22 when it was born
01:35 joga I'm sure my life would be quite different if I had joined fb...so many social contacts to miss, old friends who irc no more but are there etc...but probably better this way
01:35 GuShH I don't know if it's that social
01:35 MrCurious face book is evil
01:35 MrCurious you are the product
01:35 MrCurious may as well donate your body to a blood mill
01:35 GuShH I had to register an account to access the sdk portion a long time ago...
01:36 GuShH likewise with twitter
01:36 joga maybe eventually fb has blood donation service
01:36 GuShH twitter has updated their sdk so many times I lost track
01:36 GuShH it's all different
01:36 GuShH and there's virtually no legacy support
01:36 GuShH joga: lol...
01:36 GuShH they'll take your blood without even telling you
01:37 GuShH Google style
01:37 joga or just add an obfuscated line in privacy policy that says some of your biological stuffs will be archived
01:37 joga no one will care anyway until it was too late years ago
01:42 GuShH wonder how to remove the top bearing from this motor...
01:42 GuShH there's a sort of slotted screw on top, not sure if it's binding it in place or not
01:42 GuShH could just be an interference fit with some type of loctite in there... I'll spend all eternity trying to get it out by normal means
01:48 GuShH hmmmm http://snapsort.com/compare/Nikon-D3200-vs-Nikon_D7000
01:48 GuShH no shit the d7000 wins, costs nearly twice as much... what's the point of these sites?
01:49 GuShH I guess people think "24mp must be better than 16mp"
01:49 GuShH otoh the 3200 must be newer and it has some good points...
01:50 GuShH but it's not a good investment, in paper.
01:51 GuShH (D7100 would be ideal) ... am I talking alone again? you all suck!
04:21 klander hey guys, whats the smallest motor available for hobby projects?
04:22 klander need not be high speed, looking for something that can pull a fishing wire attached to a weight of about 0.5lb
04:23 klander digitally controlled and extremely precise with movements
04:26 GargantuaSauce_ http://dx.com/p/5v-stepper-motor-uln2003-driver-board-set-158635
08:49 IAmNotARobot hi
08:51 SleepersTide lol
08:52 IAmNotARobot :)
10:02 IAmNotARobot Anyone know about visual servoing?
15:09 ShH pokes rue_h
17:34 delinquentme OTG power sensing on USB mini / micro ... pin 4 the "sense" pin ... what is it for?
19:01 e_house hits GuShH with a baseball
19:05 Faek What did GuShH do to deserve that?
19:14 GargantuaSauce_ maybe he's secretly a baseball
19:34 Faek That would be a surprise indeedd
19:37 GargantuaSauce_ everyone has to come out of the closet eventually
20:15 ShH slaps rue_h
20:24 e_house hits GuShH with a baseball
20:24 rue_house :}
21:26 delinquentme anyone have sketches with microstepping enabled for this stepper driver: http://www.phidgets.com/products.php?product_id=1063_1
21:48 delinquentme accrued error?
21:48 delinquentme thats a term ja?
21:50 delinquentme also a good place to buy pulleys for v belts?
21:50 Tom_itx sdp-si
21:50 Tom_itx oh, not sure about v belts
21:50 Tom_itx i'm sure they got em
21:50 Tom_itx i made mine