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[00:07:10] <z64555> what's the motor type?
[00:07:14] <z64555> DC? AC? BLDC?
[00:07:19] <rue_shop3> brushed dc
[00:07:25] <rue_shop3> its just a fet
[00:07:30] <z64555> ah, easy peasy
[00:07:32] <rue_shop3> low speed pwm
[00:07:36] <rue_shop3> 71Hz I think
[00:09:20] <z64555> if it's a JFET, you could stick a low pass filter to smooth the PWM
[00:10:05] * z64555 thinks
[00:10:27] <z64555> yeah, that should work for any FET
[00:11:07] <z64555> if the motor has enough load on it, you won't need the filter
[00:11:34] <rue_shop3> pwm is used to increase efficiency, not convert to linear mode
[00:14:36] <z64555> hm, output's gonna wiggle
[00:15:06] <z64555> the speed controller should be able to handle it, tho
[00:23:05] <Jak_o_Shadows1> Is this the servo?
[00:28:06] <z64555> probably for the CNC, if it was a servo, you'd want a position controller
[00:28:19] <rue_shop3> its a cordless drill motor, 18V
[00:28:30] <rue_shop3> run on 12V, can get up to 12k rpm easy
[00:28:40] <rue_shop3> its the spindle for a cnc
[00:28:43] <rue_shop3> :P
[00:29:01] * z64555 gives himself a cookie
[00:29:29] * rue_shop3 forwards z64555 a cookie google gave to him
[00:29:40] <rue_shop3> loooots more where that came from
[00:34:21] <z64555> yay!
[00:34:27] * z64555 noms cookies
[00:35:22] * zhanx takes z64555's cookies
[00:38:11] <z64555> You'll have to get them out of my cast-iron stomach!
[00:51:10] <Jak_o_Shadows1> ah. ok
[01:17:28] <rue_shop3> zhanx, you can click on a line to set the cnc-program counter (not while running, I thought that might be a disaster), you can tear off the run menu, pause, step, stop, etc
[01:17:54] <rue_shop3> you can edit the nc program at any time, (even just ahead of a running program counter)
[01:18:03] <rue_shop3> you cant save out changes
[01:18:24] <rue_shop3> I'm working on pendant code
[01:18:27] <zhanx> k
[01:18:37] <rue_shop3> for my generic pendant
[01:19:04] <rue_shop3> thats case and code are on thingiverse
[01:23:01] <rue_shop3> zhanx, it tells you the elapsed runtime, and you can get percentage from the program scroll bar
[01:37:27] <rue_shop3> zhanx, I'm intersetd in the design of your cnc at that size
[01:37:31] <rue_shop3> have a plan?
[01:39:26] <rue_shop3> I'v had an avr plugged into the serial port for days now, generating 32 bit pseudorandom numbers
[01:41:29] <rue_shop3> hah, I can 3d print an interrupter for the motor
[01:42:04] <rue_shop3> oh, better idea
[01:42:18] <rue_shop3> I suppose that _1_ hole thru a shaft, generates 2 ppr
[01:43:29] <rue_shop3> I could just use one of the interrupter gates I have
[01:43:33] <rue_shop3> logic level ones too
[02:19:16] <rue_house> wow, at like 12k rpm, a belt expands out under its own centerfugal by quite a bit
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[08:06:26] <z64555> well that's new, IRC advertisment campaigns
[08:13:11] <deshipu> hardly new, but I didn't see that for a while
[08:27:45] <zhanx> well i found my new email to use for all the junk sites
[08:40:50] <deshipu> I use mailinator
[08:40:55] <deshipu> with my custom domain
[08:48:58] <zhanx> mailbait
[10:14:26] <fishbulb> does anyone here use RC crawler parts?
[10:14:49] <deshipu> RC crawler?
[10:15:03] <fishbulb> the wheels are pretty awesome but the axles look like they could be useful too, for a while I wanted a rock crawler chassis but they're VERY expensive
[10:15:08] <fishbulb> artificially expensive
[10:16:21] <deshipu> as all hobby stuff
[10:16:36] <deshipu> if it was cheap, nobody would want to buy it
[10:16:46] <deshipu> a hobby has to be expensive
[10:17:16] <veverak> :)
[10:17:40] <veverak> RC cars are usually made expensive with carbon-plate parts
[10:17:42] <zhanx> thats why i don't have hobbies
[10:17:44] <zhanx> wait...
[10:18:01] * veverak started to juggle
[10:18:27] <zhanx> you do flaming chain saws yet?
[10:18:37] <deshipu> bzzt
[10:18:38] <fishbulb> well there's a hobby economy
[10:18:43] <fishbulb> they have to break and there has to be upgrades
[10:19:02] <deshipu> and you have to be able to brag
[10:19:30] <fishbulb> I don't believe that if they were cheaper nobody would want them, they're as cheap as they can possibly be to move units and as expensive as possible to make a profit
[10:19:39] <fishbulb> there's some middleground there
[10:20:29] <veverak> zhanx: son
[10:20:33] <veverak> soon
[10:20:44] <veverak> allready made first juggling toy with arduino and rgb leds
[10:21:33] <fishbulb> I want to build a rover
[10:21:37] <deshipu> juggle with PDP11s
[10:21:56] <deshipu> pretty blinking lights...
[10:22:13] <fishbulb> I'm probably going to use pixhawk as the "autonomous controller" becuase you get gps barometer dozens of outputs and inputs and a shitload of other things
[10:22:22] <fishbulb> and arduino can be added for (stuff)
[10:22:32] <deshipu> but mostly shitload
[10:22:51] <fishbulb> do you know pixhawk?
[10:22:59] <deshipu> we haven't been introduced
[10:23:06] <fishbulb> you know what it is though
[10:23:17] <deshipu> another overpriced devboard
[10:23:34] <fishbulb> no it's a flight controller for anything, or it can do boats and things with wheels
[10:23:41] <zhanx> fishbulb: you look at the openpilot?
[10:23:52] <deshipu> right, it's a devboard with some sensors
[10:23:54] <fishbulb> it's not as comprehensive as pixhawk
[10:24:06] <deshipu> nothing you can't make yourself
[10:24:06] <fishbulb> lots of sensors that you can't buy individually for the same price as the package
[10:24:20] <deshipu> sure you can, and cheaper too
[10:24:26] <fishbulb> no
[10:24:57] <deshipu> also, you won't use half of them
[10:24:58] <fishbulb> there's arducopter/arduplane/ardurover which is powerful enough to fly a drone and control a gimbal, but not like... 2 gimbals
[10:25:04] <fishbulb> I will when I make a flying thing
[10:25:39] <fishbulb> this was for my drone, I'm not flying that thing autonomously yet, because it's giant explodey batteries and giant motors with 15" knives attached
[10:26:41] <fishbulb> I need to do 2d before something that's affected by wind and errors that can cut you 20x as it falls past your face
[10:26:44] <deshipu> good luck
[10:27:04] <fishbulb> I know how pixhawk works, I was wondering if you or someone else did
[10:27:09] <fishbulb> take a look at the source code, it's open
[10:27:35] <fishbulb> it's not some toy or overpriced anything, it's 100% open
[10:27:39] <fishbulb> the hardware is too.
[10:28:24] <deshipu> whatever works for you
[10:29:10] <fishbulb> this is a nice friendly place :/
[10:29:30] <deshipu> it's just not my cup of tea, sorry
[10:30:05] <fishbulb> I do arduino stuff more, but the biggest atmega with the biggest amount of code that exists for autonomous things
[10:30:11] <deshipu> but don't mind me, building things is much better than complaining
[10:30:39] <fishbulb> my anet a8 turns up soon and I'm wanting to get right into a vehicle
[10:30:50] <deshipu> and certainly building autonomous things is much more interesting than making rc toys
[10:30:59] <fishbulb> rc toys aren't interesting to me
[10:31:25] <fishbulb> a tracked thing is probably too complicated and doesn't grip enough
[10:31:41] <fishbulb> and this won't be heavy enough to need tracks
[10:32:01] <deshipu> track-like steering is usually much easier to implmenet
[10:32:14] <fishbulb> that's like motor on hub
[10:32:31] <fishbulb> that's a thing with a huge plus, lowering the CG
[10:34:26] <fishbulb> it'd either be track like steering or 4 wheel steering which nearly acts as track like
[10:35:04] <fishbulb> has anyone here built an outdoors thing that can go over obstacles?
[10:35:30] <deshipu> I'm limited to desktop robots
[10:35:35] <deshipu> I think rue_house did some
[10:36:10] <rue_house> I did tracks, I dont have sprockets for them yet
[10:37:33] <fishbulb> what kind of tracks
[10:38:13] <rue_house> thing # 1739978
[10:38:17] <rue_house> http://www.thingiverse.com/thing:1739978
[10:38:22] <fishbulb> oh
[10:38:33] <fishbulb> I don't have my anet a8 yet
[10:38:52] <rue_house> ?
[10:39:29] <fishbulb> prusa clone
[10:39:32] <fishbulb> 3d printer
[10:39:46] <rue_house> I have a v1 sprocket, but its not even posted yet
[10:39:49] <fishbulb> what sprocket does that use
[10:40:13] <rue_house> the one I'v not finihsed designing yet
[10:40:26] <fishbulb> it's for an outdoors thing?
[10:40:28] <rue_house> I screwed up and blew the pitch by 1mm
[10:40:35] <rue_house> not tried it yet
[10:40:49] <fishbulb> was the intention to run it outdoors
[10:41:05] <fishbulb> because the design parameters kind of change a bit if it's an outdoors thing
[10:46:15] * rue_house goes to work
[10:51:09] <zhanx> slacker
[10:51:19] <zhanx> its almost noon
[10:54:26] <deshipu> it's past 5
[11:19:09] <fishbulb> woudl this be the place where someone who might have made an outdoors/grass/mud type rover device
[11:19:15] <fishbulb> or are there other channels too?
[11:20:52] <fishbulb> the one good thing about tracks is it's possible to reduce the profile compared to something that has wheels and suspension, but the unnecessary complexity and shit they can collect outdoors makes tracks a decision that's more for looks than anything else
[11:21:03] <fishbulb> wear and tear
[11:21:33] <fishbulb> I love how tracks look but wheels/tyres are more practical in most instances
[11:24:44] <deshipu> fishbulb: have you seen r-hex robots?
[11:25:57] <fishbulb> 6 leg walkers?
[11:26:15] <deshipu> yeah, with those weird wheg-like legs
[11:26:23] <fishbulb> wheg?
[11:26:30] <deshipu> wheel+leg
[11:26:44] <deshipu> https://www.youtube.com/watch?v=ISznqY3kESI
[11:26:59] <fishbulb> oh
[11:27:04] <fishbulb> ahaha. yes I saw that once
[11:27:14] <veverak> nice one
[11:27:16] <veverak> :)
[11:27:31] <fishbulb> it would need very expensive motors and those legs I don't think could be 3d printed
[11:27:41] <fishbulb> they'd have to be alloy or composite
[11:28:19] <deshipu> but look at those offroad capabilities!
[11:28:24] <fishbulb> it almost looks broken
[11:28:44] <deshipu> it can also jump!
https://www.youtube.com/watch?v=ntlI-pDUxPE
[11:29:09] <fishbulb> if I saw it approaching I would want to parkour away from it
[11:29:20] <deshipu> I think I saw versions of rhex that had legs made out of pvc pipe
[11:30:01] <fishbulb> it's creepy in the way those spider robots from "runaway" were
[11:30:40] <fishbulb> tom selleck and the badguy was gene simmons
[11:30:42] <deshipu> come to think of it, quite similar
[11:30:58] <deshipu> onle those had normal legs
[11:31:30] <fishbulb> some were obviously puppets
[11:31:55] <fishbulb> I don't remmeber them actually walking compared to just looking really creepy
[11:32:14] <fishbulb> I want to know how they carried acid in large metal syringes
[11:32:48] <fishbulb> I need to get that movie again
[12:45:00] <fishbulb> need to design something that has suspension, and hub motors
[12:45:44] <fishbulb> there's a "mars rover" on thingiverse but printing something like that is just one step removed from buying a finished one
[12:51:57] <Wetmelon> fishbulb: for a class?
[12:55:41] <fishbulb> for a thing I want
[12:56:51] <fishbulb> I was gonna go with radio control "replica of a car axle" but they're pretty pointless and too mechanically complex if you don't want a little car replica
[12:56:55] <fishbulb> which is what the poeple who buy those want
[12:57:43] <fishbulb> for a device that's supposed to go across outdoors terrain wheels with motors are better and easier to control/steer
[12:58:23] <fishbulb> tank "controls"
[12:59:17] <fishbulb> is there a time where more poeple are here
[13:05:27] <robopal> what do you expect from us exactly?
[13:06:13] <fishbulb> I dunno
[13:06:20] <fishbulb> someone to pipe in and go "I'VE DONE THAT BEFORE"
[13:06:35] <robopal> google is your friend :S
[13:07:39] <robopal> I would go with something like: outdoor mobile robot 10kg 4wd
[13:07:45] <robopal> go through google images
[13:07:54] <robopal> adjust search as necessary
[13:09:44] <robopal> I have seen bikes with very nice carriages also, bikes can be electric, it all depends of your needs, lots of options
[13:10:24] <robopal> how large, how big, how big an obstacle does it need to be able to climb over etc
[13:22:09] <mrdata> a flight of stairs?
[13:23:10] <Anniepoo__> fishbulb - you might start by characterizing the kind of terrain you want to navigate
[13:23:52] <Anniepoo__> and then looking at simple things that successfully do navigate that terrain
[13:24:40] <Anniepoo__> "outdoors terrain" could be anything from the Hillary Step on Everest to a junkyard
[13:28:35] <zhanx> Anniepoo__: isnt the Hillary Step just a small pebble? Easy for normal people but way to hard for her
[13:29:01] * Anniepoo__ slaps head
[13:29:39] <Anniepoo__> steering firmly away from politics, I'd point out the Hillary Step is named for Sir Edmund Hillary
[13:30:12] <zhanx> i know whoi its named for
[13:36:33] <Anniepoo__> 8cD
[13:37:19] <zhanx> ok that's it, i am tired of replacing batteries in my mouse
[13:37:26] <zhanx> induction charging time
[13:37:36] <Anniepoo__> fishbulb, can you characterize the terrain more?
[13:38:57] <Anniepoo__> rovers are intended for mars - terrain characterized by flat areas with loose soil, boulders, blah blah...
[13:39:30] <Anniepoo__> Curiousity wouldn't do too well in my neck of the woods (pine forest)
[13:40:33] <Anniepoo__> design for suspension and hub motors - how much math do you want to get into?
[13:45:53] <Anniepoo__> I think fishbulb's bulb has gone out
[13:53:21] <SpeedEvil> Pretty much upgrade the design with three times the power, to cope with three times the weight, and it'd be the same
[13:53:38] <SpeedEvil> There isn't really any 'suspension' as such - it goes so slowly
[13:57:22] <fishbulb> Anniepoo__, yes
[13:57:39] <fishbulb> mostly just grass, dirt, some rocks, like a typical park
[13:58:04] <fishbulb> nothing extreme
[13:58:44] <fishbulb> design for suspension and hub motors, the thing will have lots of unsprung mass, but that's often beneficial for something crawling over obstacles
[13:59:22] <fishbulb> think the worst parts of a typical city park
[13:59:38] <fishbulb> probably curbs being the biggest hurdle
[14:05:48] <fishbulb> I hvae a 3d printer turning up that I can copy most or all RC components
[14:06:50] <fishbulb> and a box of stuff for drones and planes that actually hasn't been used much, motors, escs, batteries, charger, a backpack of electronic components, a gaggle of arduinos and other stuff
[14:06:58] <fishbulb> a pi somewhere
[14:07:31] <fishbulb> two "flight controllers" that can control any sort of plane or drone autonomously, or any ground or water based thing, these are really cool.
[18:19:16] <z64555> drones mentioned
[18:21:28] <z64555> blah, he left already
[18:21:41] <z64555> Was going to ask for him to expand on the "flight controllers"
[19:05:53] <zhanx> ok turning my arduino with a tft shield into a scope and reading two mics with it was a hit with the kids
[19:06:17] <zhanx> z64555: he seems to be particular to a certain for some reason
[20:51:00] <zhanx> sup orlock
[20:52:48] <orlock> AC compressor at home failed.
[20:53:03] <orlock> new system's going to be ~$2300 inc. install, which is cheap for this sort i think
[20:54:37] <zhanx> sure
[20:54:43] <zhanx> 500 is cost
[20:54:57] * zhanx is a HVAC in the us remember
[20:55:44] <orlock> 7Kw split system, unsure of model
[20:55:49] <orlock> our 12 year old system compressor failed
[20:56:02] <orlock> is "Daiken" a brand over there?
[20:56:04] <zhanx> you just replace the compressor fyi
[20:56:14] <zhanx> not in the US, but i have worked on them
[20:57:12] <orlock> I kinda thought the psrta would ge reasonably interchangabke
[20:57:24] <zhanx> they are for the electronics
[20:57:36] <orlock> you get one of the right capacity, wire it up, good to go.. the tech that was out seemed to think a usable part would be hard to get
[20:57:36] <zhanx> the compressors are size and replace
[20:57:44] <orlock> i forget what gas our current system runs as well
[20:57:54] <zhanx> r-22 probably
[20:58:07] <zhanx> well its a split system maybe 124
[20:58:09] <zhanx> er 134
[20:58:14] <orlock> yeah, thats what i thought - but i dont want to go telling the AC tech he doesnt know what he's doing mate-of-a-mate and everything
[20:58:40] <zhanx> being 12 years old i don't think it 404A
[20:59:44] <zhanx> or my arduino with a screen became a scope today and i used it to trouble shoot a circuit output
[20:59:53] * zhanx is proud
[22:08:54] <rue_shop3> :)
[22:10:26] <g123> is there a #robotics irc channel log?
[22:10:44] <rue_shop3> zlog
[22:13:19] <orlock> Probably others too
[23:36:06] <z64555> orlock: there should be a sticker on the unit somewhere that says what refridgerant it uses
[23:36:47] <z64555> window units don't have service ports, usually
[23:37:33] <zhanx> nope but we got a solution for that
[23:38:23] <zhanx> z64555: Australia (where orlock is) has a code requirement for a metal sheet not a sticker. Which i bet wears out fast
[23:39:41] <z64555> yeah, unless it's got nice thick punched lettering
[23:40:14] <z64555> hm, although sand might be an issue