#robotics Logs

Jul 06 2013

00:04 MrCurious http://i.qkme.me/3ut79v.jpg
00:57 MrCurious Tom_itx: you do anything cool today?
01:43 MrCurious best name for a dog.... "stains"
03:23 MrCurious anyone awake?
03:32 rue_house no
03:36 MrCurious it would seem
03:36 MrCurious if you cant beat em, join em
03:43 rue_house http://www.ebay.ca/itm/10pcs-Plastic-Motor-Gear-Module-0-5-10-26-30-50T-Various-Specifications-for-DIY-/321041914915
03:44 rue_house 50c ea is a great deal
10:15 GuShH Tom_itx: alright now the steel is here
10:16 Tom_itx git r dun
10:18 GuShH maybe, it's rainy though. might just go out to buy some cutoff and grinding discs in the meantime
10:18 GuShH running low on those.
10:40 GuShH Tom_itx: here http://gushh.net/tmp/dscn3761f.jpg see what I mean with moss? It's all over the place even the cat is upset http://gushh.net/tmp/dscn3762f.jpg
10:41 GuShH damn you kate moss!
10:43 GuShH Need to get working on the gate area, it's been neglected by the previous owner and it's being neglected by myself... well until today.
10:44 GuShH There's no lawn left on that area, it's all dirty. http://gushh.net/tmp/dscn3759f.jpg I wonder if an all season mix of seeds is the way to go, with a thin bedding of composted earth
10:44 GuShH Previous experiences with seeds haven't been very good, birds tend to dig them out.
10:47 Tom_itx i use a hand auger to bury them
10:47 Tom_itx tines
10:48 Tom_itx worked rather well the last time
10:48 Tom_itx and changed the type of seed i'd been using
10:48 Tom_itx so far it's working well
10:48 Tom_itx the deep south has moss like that all over
10:49 Tom_itx you'd better hurry up and paint that nice shiny steel
11:27 GuShH Tom_itx: heh it's covered in oil, already moved it to the driveway
11:29 GuShH can't paint until it's welded, get's all messy
11:29 GuShH might spray the remaining...
11:29 GuShH otoh if you oil them up and cover with old newspaper it should last some time
11:29 GuShH assuming it's indoors
12:15 GuShH look it's robotustra, the non russian russian.
12:18 GuShH http://bedair.org/Carbide/tool.html nice
12:19 GuShH otoh every insert I could find around here was rather expensive, some only sold by the 10
12:19 GuShH of course you get "3" out of 1, but still
13:34 rue_shop2 to run this brushless motor, I need a tripple half bridge driver
13:35 theBear it's true
13:35 rue_shop2 this motherboard, has a 3 phase synchronous fet power converter for the cpu
13:35 theBear it's true !
13:35 theBear tho usually you find they all n-devices, so you gotta do something to handle highside drive
13:36 rue_shop2 it has high side drivers on it
13:37 rue_shop2 its operated (on this board) by a HIP6301
13:37 theBear never thought about it like that... silly me
13:37 rue_shop2 I dont think this always works, I'v seen 5 phase converters
13:37 theBear and those little suckers got CRAZY specs so long as you drive/switch them nice and hard
13:37 rue_shop2 lets poll...
13:39 rue_shop2 lots of these are single or 2 phase
13:41 rue_shop2 another 3 phase, but its so spread out I'm only guessing that the ADP3188 is the controller
13:42 rue_shop2 heh, I flushed the motherboard supply latley
13:50 MrCurious 48 people shot in chicago this weekend
13:50 MrCurious dang
13:50 GuShH MrCurious: shot cocaine?
13:51 theBear 480
13:51 MrCurious dont know news just touched on it really quickly
13:51 theBear 000
13:51 GuShH "oh and by the way 48 simpletons got shot in the face, now let's look at two cute cats playing with a ball of yarn, now going viral on youtoot"
13:52 MrCurious link?
13:52 GuShH ...
13:52 MrCurious i like cats with yarn
13:52 MrCurious i have 9 cats... total cat sucker
13:52 GuShH no yarn but close enough? http://gushh.net/tmp/dscn3762f.jpg
13:53 MrCurious i got a cat like that
13:53 GuShH yeah it's a generic brand
13:53 theBear i only buy namebrand cat
13:53 GuShH lol
13:53 GuShH I never bought a cat or a dog
13:53 MrCurious stands on a black desk in a dark room, all you see is eyes. really freaky when it has em closed for a few seconds, then they just open and appear from nowhere
13:53 theBear 100% dolphin free :)
13:54 GuShH theBear: we're not sure
13:54 GuShH maybe she ate a dolphin once
13:54 MrCurious the other cats cant see it either in those conditions
13:54 MrCurious humans rule dolphins can suck it!
13:54 theBear lol
13:54 GuShH black op catz
13:54 theBear surprisingly MrCurious knows teh score
13:54 MrCurious fuck his blow hole!
13:55 GuShH MrCurious: how old you reckon that cat in the picture is?
13:55 MrCurious no idea where i saw that, cant find it on the web, but it has stuck with me
13:55 GuShH I've no idea how to tell on cats.
13:55 theBear you name one issue that can't be solved with a log-rolling contest !
13:55 MrCurious 7
13:55 GuShH hmm
13:55 theBear upright citizens brigade, series 3 ep err, X, "small town"
13:55 MrCurious wasnt that the show with the church rocket with lasers under the pew chairs
13:55 GuShH because of the grey hairs
13:56 GuShH no clue really, she just showed up one day
13:56 GuShH lives outside, but it's allowed to come upstairs for a while as long as I'm there
13:56 theBear it turns into a spaceship, just like boston
13:58 rue_house and now I'm plugged into my new ups!
13:58 rue_house why do we have more power outages during perfect weather than any other time?
14:01 MrCurious GuShH: we have a cat that is like 2 and it has tufts of gray... not always a age indicator in cats
14:01 MrCurious when they gray, its all over their fur
22:32 GuShH robotustra: but it is CNC
22:32 GuShH for the chinese mini mill to become CNC I'd have to spend a few bucks as well.
22:32 GuShH "a few"
22:33 robotustra I just have a reservoir about 4 liters of water to pump trough spindle
22:33 robotustra it's geting warm, but I can mill to 3 hours about
22:34 robotustra after it cools down
22:34 robotustra I hope I can mill much longer after installation of cooling system
22:35 robotustra If I can mill for 8 hours - it's what I want
22:35 GuShH milling what exactly
22:36 robotustra aluminium, wood
22:36 GuShH for what
22:36 robotustra robot parts
22:36 robotustra plastic, etc
22:36 robotustra PCBs
22:36 robotustra evrything
22:37 robotustra everything
22:38 robotustra the main problem after you finish CNC mill is to become a good cnc programmer
22:39 robotustra and find right software to do milling itself
22:39 GuShH make it yourself then
22:39 robotustra I find a way to do it
22:39 robotustra in a couple of tries
22:40 robotustra now I can mill quite precise
22:41 robotustra I milled this guy recently http://maholet.livejournal.com/29943.html
22:41 robotustra thickness of the reductor body is 4 mm
22:41 Jak_o_Shadows Ok, a mill would be cool
22:42 robotustra Jak_o_Shadows: definetly
22:42 robotustra It saves a lot of time
22:43 robotustra and actually I whould never do the same by hands with such accuracy
22:43 robotustra I may state that it's a tech revolution in a separate canadian kitchen
22:46 robotustra http://ic.pics.livejournal.com/maholet/24765393/17641/17641_600.jpg
22:47 robotustra and this is a robot eye
22:47 robotustra now I don't work on the plant and I have to buy aliminium online
22:48 robotustra http://ic.pics.livejournal.com/maholet/24765393/16835/16835_600.jpg
22:49 Jak_o_Shadows Oh, cool, rotates and all
22:53 robotustra :)
22:53 robotustra now I'm thinking how to attach motors to it :)
22:54 robotustra how to make it better
22:57 MrCurious could use lead screws
22:57 MrCurious and edge mount...
22:57 MrCurious or a servo with cable wrapped around its shaft tied to each side
22:57 MrCurious though they look light...
22:58 Jak_o_Shadows Do you want it to be a steady-cam type of thing, or just aiming? If just aiming, servos would do
22:58 MrCurious would think a solenoid leached between each side could work for less power
23:00 MrCurious didnt rue use a solenoid and a encoder strip to do some positionally accurate stuff?
23:00 MrCurious about 2 weeks back
23:10 robotustra no servo
23:10 robotustra I hate the sound they produce
23:10 robotustra only DC motors
23:11 robotustra yeah, I thought about putting some rare earth magnets on frames and coils
23:12 robotustra but I need to calibrate it but it's a pain in the ass
23:12 robotustra and to stop camera in some position is also a task
23:13 robotustra Jak_o_Shadows: for steady cam I whould not do such suspention
23:14 robotustra it will work similar to human eye
23:16 MrCurious calibrate it programatically
23:17 robotustra not so easy, because the first task is to balance the weight on the frames
23:18 robotustra to avoid influence of gravity
23:18 GuShH look at robotustra he designs as he goes
23:19 robotustra GuShH :)
23:19 robotustra it's easy, all in my head
23:19 robotustra all is in my head
23:19 GuShH until you sneeze.
23:21 robotustra don't rely on it
23:30 GuShH robotustra: but it's like a print button, just sneeze and it all comes out!
23:33 robotustra it's not ready yet
23:33 robotustra I was busy with moving
23:37 robotustra now I have some time to think about robots