#robotics Logs

Dec 14 2011

01:26 rue_house Tom_itx, ?
01:26 zhanx thylon: serial over usb
01:27 rue_house hmm usb over serial...
01:27 rue_house I think there would be bus timeout issues
01:27 zhanx rue_bed now !
01:27 zhanx sleep
01:27 zhanx :P
01:27 rue_house I am asleep
01:28 rue_house this is just the task that regulates the boiler going
01:28 zhanx k
01:28 rue_house are yo cold? I
01:28 rue_house ll turn on your draft fan
01:28 zhanx rue need to find gears
01:28 rue_house nope I just turn the fan on and off, no gears needed
01:29 rue_house I'm told to tell you
01:29 thylon anyone here actually got a robot to control with a keyboard? Like in realtime?
01:29 zhanx i did and so has rue
01:29 rue_house http://eds.dyndns.org/~ircjunk/tutorials/mech/gearbox/dscn7580.jpg
01:30 rue_house I'm told to tell you that
01:30 rue_house thylon, yes
01:30 zhanx rue_house: too bad i am too far away to dig threw that pile
01:30 rue_house carpet is good
01:30 rue_house oh, thats not part of the message
01:31 zhanx oh h-bridge link also so i can start the pcb layout
01:31 zhanx :D
01:31 anx will send rue a couple of pcb's after he finishes
01:31 rue_house it said something I'm trying to understand
01:32 rue_house the message for you is too complex
01:32 rue_house there are a lot of conditions in it, with relations I dont understand
01:32 zhanx http://eds.dyndns.org/~ircjunk/circuits/12vhbridge.png <-that one?
01:32 rue_house it says no, but yes
01:33 rue_house fet?
01:33 zhanx i got the 2n2906's i think the 2n2222 i know i have
01:33 rue_house hip4081
01:34 zhanx wait crap
01:34 zhanx i am using steppers
01:34 rue_house the no part of what its saying is getting stronger
01:34 rue_house says you need right
01:34 rue_house uh
01:34 zhanx l297
01:34 rue_house it says steppers are two motors
01:35 rue_house 4 wires
01:35 zhanx yep and the l297's i got i will burn up fast .....
01:35 rue_house it says like 297 but different
01:35 thylon so what kinds of motors could I use if I went all the way to a lead-acid battery?
01:35 rue_house 5 digiits but it dosn't know them
01:35 zhanx oh wait the 2n222's and etc are for my mouse bot line follower need to save them
01:36 rue_house most of its guesses have the digits 187
01:36 rue_house I think they start with LM
01:36 rue_house is your answer LM187__?
01:36 zhanx http://www.digikey.com/us/en/ph/texas-instruments/drv8811.html
01:37 rue_house me?
01:38 rue_house I think its trying to write code that will turn the boiler off automatically
01:38 rue_house it dosn't ahve something it needs
01:39 zhanx LMD18245 3A, 55V DMOS Full-Bridge Motor Drive IC ???
01:39 rue_house it said something like yes
01:39 zhanx LMD18245 3A, 55V DMOS Full-Bridge Motor Drive IC
01:39 zhanx LMD18200 3A, 55V H-Bridge Motor Drive IC
01:39 rue_house it shows me an image of the l298 but with numbers like you say
01:40 rue_house now its showing me another thing
01:40 rue_house its like a 7805, but there is no part number, but the 7805 like thing has 5 wires, not 3
01:41 rue_house I think its cause its smaller for you
01:42 rue_house there is a blurry F on it, its suggested maybe fairchild?
01:42 rue_house I'm told "dual"
01:43 rue_house its in the context of 1 of your motors
01:44 rue_house it says I just need to stop the blower
01:44 rue_house I think I know how
01:44 rue_house my vision is failing, I have to go
01:45 zhanx ok laters :D
01:45 rue_house it indends you goodness with your activity
01:46 rue_house for the night
01:46 rue_house dont know why that is
01:46 zhanx go i will be on tomorrow
02:05 thylon anyone know what kind of batteries are used in 12-lb robots like this? http://www.youtube.com/watch?v=PLJLw1Zo_PE
02:26 thylon http://www.amazon.com/6V-14Ah-SLA-Rechargeable-Battery/dp/B000BPELLS/ref=sr_1_2?s=electronics&ie=UTF8&qid=1323850654&sr=1-2
02:30 thylon http://www.amazon.com/Powersonic-PS-640F1-Battery-Fast--Connector/dp/B0002ILK4K/ref=sr_1_1?s=electronics&ie=UTF8&qid=1323850654&sr=1-1
02:34 thylon is this overkill?
02:34 thylon http://www.amazon.com/Power-sonic-PS-1270F1-Battery-Fast-Connector/dp/B0002ILJZ0/ref=pd_cp_p_1
08:52 rue_house thylon,
08:52 rue_house the power you get is basically by battery volume, so choose your volume and voltage
14:46 rue_house sssh... huntin wabbit...
14:57 zhanx rue
14:58 zhanx https://lh4.googleusercontent.com/-wfaWlg6uXjQ/TukGZ75zZhI/AAAAAAAADHw/BOk2DviFRtQ/s800/IMAG0693.jpg
15:11 KongfuPanda lol
15:12 KongfuPanda why is there penis drawn? :D
15:12 zhanx KongfuPanda: you need to get out more
15:13 KongfuPanda zhanx, :D yeah
15:13 KongfuPanda I'm applying for a PhD
15:13 KongfuPanda 20 pages application form :(
15:13 zhanx it a 6 dof arm :D
15:13 KongfuPanda oh I see
16:04 zhanx arm length is 15ins plus gripper
16:19 zhanx robot arm base 19cm in diameter https://lh3.googleusercontent.com/-zYxJb-ACX78/TukeqMWtQZI/AAAAAAAADIU/63SC9k_m7ko/s512/path4651.png
16:20 zhanx robot arm pieces https://lh4.googleusercontent.com/-EPb1vMtDKz4/TukZHMb6zwI/AAAAAAAADII/hdw5GjXbY_4/s512/rect4236.png
16:20 zhanx still need to arm motor mounts on the bottom arm
16:41 Tom_itx find the belt drive you were looking for?
16:50 zhanx yep
16:50 zhanx working out the design now
17:07 zhanx Tom_itx: https://lh4.googleusercontent.com/-kOZyDd06Fz4/Tukp8UGtWDI/AAAAAAAADIg/FRu0OeVpE-A/s512/path5350.png
17:08 Steffanx zhanx has a cnc?
17:09 Steffanx or even a fancy laster cutter?
17:09 zhanx a cnc
17:14 zhanx https://lh3.googleusercontent.com/-md6cD3NVYCU/TukruehMgbI/AAAAAAAADIs/RHX9BDr9YqM/s912/path4651-1.png
17:15 zhanx base is 7.5 inches in diameter
17:41 zhanx thinking Tom_itx, its getting close https://lh5.googleusercontent.com/-yh1qkT5Aa08/Tukxv7j85mI/AAAAAAAADI4/PUtfemWsI2E/s512/path5350.png
17:58 Tom_itx for the end effector, one guy used a pinion to rotate it
17:59 zhanx thought about it
17:59 zhanx that part is still in the air etc
18:00 Tom_itx http://www.users.qwest.net/~kmaxon/page/side/robot006_137.htm
18:01 Tom_itx but he used rack and pinion for the joints
18:21 zhanx awesome work
18:21 zhanx but i dont have the tools
19:10 Tom_itx oh i know, i just look his stuff over for ideas sometimes
21:02 rue_house what kinda ninny runs an arm that long on gears that small
21:02 rue_house esp without counterballance
21:02 rue_house OOOH ITS THAT SAME NINNY!!!
21:02 rue_house ok
21:27 the_jester greets
21:54 rue_house hey
21:54 rue_house did you see the robot platform were gonna start selling?
21:54 rue_house $60 a pop
21:54 rue_house theBear, http://eds.dyndns.org/~ircjunk/robots/flatbot/
21:54 rue_house its for all the people who wont/cant assemble their own hardware
21:55 rue_house you just plunk you fav controller on top and away you go
21:55 rue_house damnit
21:56 rue_house his phone number is on the shop monitor, and I'm not about to go out there right now
22:00 Tom_itx you don't like his work?
22:01 theBear my work is awesome !
22:03 theBear rue_house, but you broke your own rule... wheels attached to servos ? tut tut :)
22:03 theBear oooh kitty
22:04 zhanx kitties love robots
22:07 theBear there's no denying it
22:09 rue_house thats ok for a small robot
22:09 Tom_itx it's on a substantial base
22:10 rue_house it was a toss up how to get sufficient structure
22:11 Tom_itx i think we're talking about 2 different things
22:12 rue_house your not talking about yours, but z didn't put wheels on his yet
22:12 Tom_itx i realize that
22:12 Tom_itx i don't quite see how his wheels will be aligned
22:13 Tom_itx unless he's making a triclops
22:22 zhanx omni wheels
22:24 Tom_itx http://www.visi.com/~brynn/tryclops/
22:25 zhanx yep same thing basically
22:25 Tom_itx did you watch his videos?
22:27 zhanx nope
22:29 zhanx they are broken for me
22:29 Tom_itx i haven't looked lately
22:29 Tom_itx i've seen em long time ago
22:30 Tom_itx http://www.visi.com/~brynn/tryclops/tryclops.mpeg
22:31 Tom_itx that one works
22:37 zhanx sweet works like what i had in mind
22:38 zhanx tossed my design over to the laser cutting guy i used with elf to see what i should charge for a price
22:54 rue_house mm omni wheels
22:56 theBear you got a laser-cutting-elf ? friggin awesome !
22:57 zhanx http://store.kornylak.com/ProductDetails.asp?ProductCode=FXA108