#robotics Logs

Mar 09 2017

11:13 AM Lo is now known as LoRez
12:18 PM veverak: deshipu: https://my.mixtape.moe/nmhqvy.mp4
12:22 PM deshipu: veverak: meh, hexbug
12:23 PM veverak: :D
12:24 PM deshipu: I mean attacknid
12:24 PM deshipu: same difference
12:24 PM deshipu: I'm actually waiting for a pi zero w to put it on a hexbug
12:26 PM veverak: :)
12:26 PM veverak: yeah
12:26 PM veverak: pi zero w seems nice for mobile robots
12:35 PM SpeedEvil: Or the o-pi zero if you actually want to be able to buy them easily
01:07 PM deshipu: SpeedEvil: do you have problems buys pi zeros?
01:27 PM SpeedEvil: They are often out of stock, and usually limited to one per customer
01:29 PM veverak: hey
01:29 PM veverak: but zero w is the one for making as KISS as possible robot
01:29 PM veverak: like take zero w, attach video camera, two small motors for two wheels and enjoy
01:36 PM deshipu: and a h-bridge
01:38 PM veverak: yeah
01:39 PM veverak: deshipu: I think we can sum it up to zero + shield + motors + wheels
01:42 PM SpeedEvil: take hoverboard, reprogram stm32
01:48 PM Snert_: kool idea.
01:49 PM Snert_: but those HBoards are spendy.
02:21 PM deshipu: veverak: zero + conitnous rotation servos + battery + round servo horns
02:28 PM veverak: \o/
02:28 PM veverak: :)
02:29 PM veverak: deshipu: hmm, usb battery pack may be usable
02:29 PM veverak: you know
02:29 PM veverak: these modern things made for charging phones
02:30 PM veverak: https://www.aliexpress.com/item/Mi-Power-Bank/32757398054.html?spm=2114.01010208.3.1.EdiiuG&ws_ab_test=searchweb0_0,searchweb201602_3_10065_10068_10501_10503_433_10136_10137_10138_10060_10062_20501_20503_10056_10055_10054_302_10059_10099_10103_10102_10096_10052_10053_10050_10107_10051_10106_20517_20515_10084_10083_10080_10082_10081_10110_10111_10112_10113_10114_10078_10079_10073_10070_10122_10123_10126_1012
02:30 PM veverak: 4-10050_20503_20501_10503_10102_10501_20517_20515_302,searchweb201603_9,afswitch_1,ppcSwitch_3,single_sort_0_default&btsid=6a9f0792-dd15-4680-a27a-a38adff3eeee&algo_expid=1720ad59-80c7-4f71-83c8-31c1a36ce512-3&algo_pvid=1720ad59-80c7-4f71-83c8-31c1a36ce512
02:30 PM veverak: ...
02:31 PM veverak: anyway, just take powerbank, glue continous rotation servos on bottom and zero ontop
02:40 PM deshipu: yup
03:33 PM z64555: hm, I need power FETs, or somethin
03:34 PM deshipu: if you need something, maybe you could connect a carrot
03:35 PM z64555: I don't think a carrot can pass 120VAC for very long, much less be switchable
03:37 PM z64555: Revisiting the idea of a magnetizer circuit
03:37 PM z64555: for working with ferrous metals, like magnetos used on small engines
03:38 PM z64555: It'll have two modes, heat and magnetize
03:38 PM deshipu: I guess it depends how far from the road it was growing
03:39 PM z64555: First mode supplies an AC to a coil, which heats up the work piece via induction
03:40 PM z64555: Once the work piece has reached the right temperature, it'll switch to a DC and allow the metal to cool
03:40 PM z64555: as the metal cools, it'll adopt the magnetic field of the coil
03:43 PM * theBear wonders why his buddy who he dropped off for the 2nd time since sundown, to pickup his car keys from his crazy (hopefully/should-be-by-now ex missus), still hasn't arrived back here with the car
03:43 PM theBear: woah, wrong channel BIGTIME, woops :)
03:46 PM deshipu: we forgive you just this time
03:46 PM z64555: oh, I was going to snip off a wire, nearly forgot
03:46 PM * z64555 goes snips
03:48 PM theBear: deshipu, fwoof ! that was a close one ! thanks man !
04:21 PM z64555: eh, found another battery that wasn't tied into anything. hooked that onto the charger with trickle charge, maybe it'll hold some of those electrons
04:59 PM theBear: last battery i met was tied down with a mortgage and 6day working weeks <sillygrin>
06:08 PM z64555: sounds like a real dynamo
07:39 PM Rez is now known as LoRez
07:50 PM theBear: z64555, <grin>
08:01 PM new_user: hello
08:02 PM rue_house: hi low low hi
08:03 PM new_user: great that you here
08:03 PM new_user: could you tell me how can we use this chat
08:03 PM deshipu: you can't
08:03 PM new_user: move between channels
08:03 PM new_user: why
08:03 PM rue_house: low low high low low low low low
08:04 PM new_user: what this mean ?
08:06 PM rue_house: low high low low high low low high low low high high high low low low low low high high low low low high low low high high low high low low low high low high low high low high
08:07 PM rue_house: low low high high low low high low .
08:17 PM rue_house: there are only 10 kinds of people,
08:20 PM deshipu: those that divide the people into groups and those that don't
08:22 PM rue_house: :P
08:22 PM rue_house: those that understand binary and those that dont
08:25 PM deshipu: no, those both are in the first group
08:38 PM synja: <rue_house> there are only 10 kinds of people
08:38 PM synja: lol
08:38 PM synja: yeah i got that one before i saw your answer
08:38 PM synja: :P
08:38 PM deshipu: this joke was too old when I was too young already
08:39 PM rue_house: that has to be an old joke by now
08:39 PM synja: best not to be a spoken joke
08:40 PM rue_house: what do you add to 1111 to get ten?
08:40 PM malcom2073: ten1111
08:40 PM rue_house: 5
08:40 PM malcom2073: Oh, misread :P
08:40 PM rue_house: T E N
08:40 PM rue_house: 1 1 11
08:41 PM synja: -5*
08:41 PM rue_house: - = \
08:41 PM synja: oh lol
08:41 PM rue_house: :)
08:41 PM synja: haven't heard that one b4
08:41 PM rue_house: thanks, the ascii art in me is weak today
08:43 PM rue_house: ok what can I do while half awake
08:43 PM rue_house: differential calculas?
08:43 PM synja: wow. the big bang theory ep. tonight, sheldon and amy got married
08:43 PM synja: can't fucking believe it
08:43 PM synja: eloped
08:43 PM orlock: eurgh
08:43 PM orlock: not a fan of that show
08:44 PM synja: i was great season 1-6
08:44 PM orlock: it's for peope to laugh at how whacky and out-there some geek stereotypes are
08:44 PM synja: now i just watch it out of habit
08:44 PM synja: it used to be about the science and inside jokes
08:44 PM rue_house: I need DC servo software
08:44 PM rue_house: and an optical serial protocol
08:44 PM rue_house: 1 wire
08:44 PM synja: is this another joke?
08:45 PM rue_house: no
08:45 PM synja: heh
08:45 PM rue_house: well, 2 wire full duplex
08:45 PM rue_house: each line is only one dir tho
08:45 PM malcom2073: rue_house: stmbl?
08:45 PM rue_house: cause its actually an optic cable
08:46 PM rue_house: manchester?
08:52 PM justanotheruser: Is it common to use a piezomaterial for linear motion?
08:52 PM justanotheruser: and if so, which materials are common
08:53 PM justanotheruser: I'm talking about linear motion of more than 1/10th of a mm :P
09:17 PM rue_house: oh
09:17 PM rue_house: well servomagnet then
09:17 PM rue_house: (speaker, voicecoil)
09:17 PM justanotheruser: are you talking to me?
09:18 PM rue_house: yes
09:18 PM justanotheruser: how does a servomagnet relate
09:18 PM rue_house: <justanotheruser> Is it common to use a piezomaterial for linear motion?
09:18 PM rue_house: <justanotheruser> and if so, which materials are common
09:18 PM rue_house: <justanotheruser> I'm talking about linear motion of more than 1/10th of a mm :P
09:18 PM rue_house: <rue_house> oh
09:18 PM rue_house: <rue_house> well servomagnet then
09:18 PM rue_house: <rue_house> (speaker, voicecoil)
09:18 PM rue_house: it helps if you turn off all the channel messages, you can actually read whats being said
09:18 PM justanotheruser: there were no channel messages
09:18 PM justanotheruser: you just requoted what I said
09:19 PM rue_house: yea, you didn't seem to know you asked about how to produce lienar motion of the range of the tenth of a mm
09:19 PM justanotheruser: a tenth of a mm isn't a range
09:20 PM justanotheruser: 20:23:38 justanotheruser:I'm talking about linear motion of more than 1/10th of a mm :P
09:21 PM rue_house: use a cd tray mechanism
09:22 PM justanotheruser: what is a cd tray mechanism
09:22 PM justanotheruser: I don't think they use piezomaterials
09:22 PM rue_house: a cd is a disc that can store digital information
09:22 PM orlock: these guys make something : http://www.dovermotion.com/
09:22 PM justanotheruser: at least for ejections
09:23 PM justanotheruser: rue_house: I'm not sure if you're trolling me again. I asked about using piezomaterials for linear motion greater than 1/10th of a mm and you suggested something that wasn't a piezomaterial and was designed for less than 1/10th of a mm
09:24 PM rue_house: yes
09:25 PM rue_house: hah, 2 hours later and I'm still dozing off
09:25 PM justanotheruser: you go to sleep early
09:26 PM justanotheruser: https://www.youtube.com/watch?v=ZJAzmAW0rdk