#robotics Logs
Jul 22 2017
#robotics Calendar
12:00 AM mbrumlow: anybody want to play with my robots tonight? They are all charged up (well most of them)
12:02 AM mbrumlow: Have 4 on line in total.
12:20 AM Casper: memememe! I'll find a way to break it!
12:20 AM mbrumlow: http://robot247.io
12:20 AM mbrumlow: :p
12:21 AM mbrumlow: spiderbot is the newist to get the rpi3 upgrade
12:21 AM mbrumlow: if you do find a way pm me and let me know
12:22 AM Casper: easy, I'll make them fall off the table? :D
12:22 AM mbrumlow: all the bots at the office with the exception of tank can wifi hop so they might drop off line to find a better wifi AP if you wonder too far.
12:22 AM mbrumlow: none of them are on the table :p
12:22 AM mbrumlow: you have almost an entire office floor
12:23 AM Casper: then I'll wait for the elevator door to open and make it stop in the door :D
12:23 AM mbrumlow: you use the arrow keys
12:23 AM mbrumlow: if you can do it that would be awesome.
12:23 AM mbrumlow: I would not even be mad :p
12:24 AM mbrumlow: pibot is the fastest, but he is also the lowest on battery.
12:24 AM mbrumlow: he has been on for 20 hours
12:32 AM mbrumlow: welp I am going to bed
12:32 AM mbrumlow: night
12:32 AM mbrumlow: enjoy the robots
01:40 AM mrdata__ is now known as mrdata
01:41 AM pokmo: Anyone familiar with landmines? How come a turtle device is needed to detonate them? https://www.newscientist.com/article/mg23431274-200-robotic-turtles-can-be-used-to-detect-landmines-in-the-desert/
01:41 AM pokmo: Why not just a rc car?
01:46 AM ace4016: from the justification of the creators: cost
01:46 AM ace4016: and speed
01:46 AM ace4016: and probably energy
01:59 AM rue_shop3: everything is busy
01:59 AM rue_shop3: I need more 3d printers and cnc machines
02:02 AM Casper: rue_shop3: I need 24V 10+AH LiFePO4 of good quality for not much money, gimme!
02:02 AM * rue_shop3 hands Casper a big lead battery
02:02 AM rue_shop3: :P
02:02 AM rue_shop3: PbSO4
02:02 AM Casper: actually, that is what I am unfortunatelly 'forced' to buy...
02:03 AM rue_shop3: used ones from fire inspection companies
02:03 AM rue_shop3: who change them instead of buying a tester
02:04 AM rue_shop3: every year, a fire alarm and backup lighting system needs to be inspected
02:04 AM rue_shop3: the rules say "tests above 85% capacity or replaced"
02:04 AM rue_shop3: they make money on the batteries, what do you think their gonna do?
02:05 AM Casper: 80-84%
02:05 AM rue_shop3: some companies just repalce them
02:05 AM rue_shop3: I HATE to think of how many good batteries get chucked in the recycling every year
02:07 AM Casper: yeah
03:20 AM Snert: I don't test. But I wait until total UPS failure because of bad batts.
03:20 AM Snert: which is not wise I know.
03:23 AM synja: eventually defeats the purpose
03:24 AM synja: i do the same, but that's beside the point ;)
03:30 AM Snert: most of the time it's simply cheaper to replace than actually test them.
03:32 AM Snert: which I agree with but no choice.
03:33 AM synja: just keep copious amounts of backups, or get good at platter replacement
03:33 AM synja: well, the latter isn't technically for a ups
03:35 AM Snert: the worst thing about ups batt replacements is getting rid of the old batts.
03:35 AM synja: that's true
03:35 AM Snert: it's already 1AM cuz it has to be done in off hours.
03:36 AM synja: you're at work?
03:36 AM Snert: and I am not going to hump hundreds of pounds of batts out of the network closet at 1AM.
03:36 AM synja: lol
03:37 AM Snert: I leave them stacked against the wall in the corner until a summer hire comes along.
03:37 AM Snert: but no, I'm not at work right now.
03:38 AM Snert: let alone, put hundreds of pounds of UPS batts in my personal vehicle.
03:38 AM Snert: fuckthat.
03:38 AM synja: rolling probable cause
03:39 AM Snert: huh? cause for what?
03:39 AM rue_shop3: you should get core $$ for them
03:40 AM synja: traveling around at 1am with a weighed down vehicle
03:40 AM synja: sounds like a drug smuggler
03:40 AM synja: that's what they look for anyway
03:40 AM synja: lol
03:40 AM Snert: situations differ though.
03:41 AM Snert: a small shop or 1 or 2 upses is 1 thing.
03:41 AM Snert: my eaton UPS uses 120 batts.
03:41 AM synja: should get a backup generator and a smaller ups
03:42 AM Snert: in 4 tiers of 32 on each tier I think.
03:42 AM Snert: there is.
03:42 AM synja: oh jeez
03:42 AM Snert: I'm talking about holding up a datacenter for 1 hour so voip phones keep working.
03:43 AM synja: that's a lot of phones
03:43 AM rue_shop3: 12V 4.5Ah
03:43 AM Snert: there's firewalls, servers, switchstacks involved too.
03:44 AM synja: ofc
03:44 AM Snert: it has to be end2end if it's gonna work. Which it never does lol.
03:44 AM rue_shop3: nothing quite like a UPS just shutting down cause its batteries are bad
03:44 AM rue_shop3: kinda defeats the point
03:45 AM rue_shop3: damnit, I didn't have supper yet
03:46 AM Snert: I tried to get them to go with a flywheel UPS and eliminate the expense of batts/shipping/disposal but it was a concept too far.
04:13 AM Jak_o_Shadows: I changed back to cura for my slicing software, and it's working a bunch better
04:14 AM Jak_o_Shadows: possibly layer thickness/height? Who cares, it's working better
04:14 AM rue_shop3: did you have the problem where slider *just crashes* when you load the model?
04:15 AM Jak_o_Shadows: Nope.
04:15 AM Jak_o_Shadows: I did have slic3r crash on occasion, but only when changing parameters
04:24 AM rue_shop3: there is a bug they havn't worked out yet
04:24 AM rue_shop3: if a plane perfectly lines up with a slice layer height
04:24 AM rue_shop3: causes it to crash
04:24 AM rue_shop3: if you slightly rotate the model or change the layer height a tiny bit, its ok
04:25 AM rue_shop3: so, I'm gonna make a wax printer
04:25 AM rue_shop3: what else should I get from aliexpress?
04:25 AM rue_shop3: heaters? no...
04:25 AM Jak_o_Shadows: how are you working the hot end type bit?
04:25 AM rue_shop3: I'll use some square tubing and... someting
04:25 AM Jak_o_Shadows: Can you just get wax string?
04:26 AM Jak_o_Shadows: on a reel?
04:26 AM Jak_o_Shadows: Or is it more pellets
04:26 AM rue_shop3: no, it'll be a 'tank'
04:26 AM rue_shop3: its gonna be a pain about temperature
04:26 AM Jak_o_Shadows: ok. So it'll have to be on the x-carriage, not a bowden-type thing
04:26 AM rue_shop3: need it to soften without going all liquid
04:26 AM rue_shop3: yea
04:27 AM rue_shop3: you know, I suppose I could start playing with an extruder any time
04:27 AM Jak_o_Shadows: SO a tank and a plunger type thing?
04:27 AM Jak_o_Shadows: Well, tbh, you could print a new x-carriage for testing
04:27 AM rue_shop3: thats what I'm thinking
04:27 AM Jak_o_Shadows: The hot-end is the hardest bit here
04:27 AM rue_shop3: not really, just use a standard one with LOW temp
04:28 AM rue_shop3: I think
04:28 AM Jak_o_Shadows: With a plunger, you reel the plunger back up now and again?
04:28 AM rue_shop3: and the tank would be heated
04:28 AM Jak_o_Shadows: Well, the x-y-z platform bit is easy enough.
04:28 AM rue_shop3: yep
04:28 AM rue_shop3: if I can extrude wax from a nozel, I must be doing ok
04:29 AM Jak_o_Shadows: yup. if you can keep it going for an hour.
04:29 AM Jak_o_Shadows: Hey, you'd be able to reuse wax easy
04:29 AM Jak_o_Shadows: in testing phase
04:29 AM rue_shop3: :)
04:29 AM rue_shop3: I wonder how soft it could be comming out before it was an issue
04:29 AM rue_shop3: gonna have to play
04:30 AM Jak_o_Shadows: If you use a thinner nozzle/lay down less wax, it'd have less inertia and would cool quicker.
04:30 AM Jak_o_Shadows: You might want to consider a coooling fan.
04:31 AM Jak_o_Shadows: Also, the there's a trade off in tank size isn't there. Smaller so your control system can maintain it better, bigger so it won't be disturbed as much by new feed coming in
04:31 AM rue_shop3: yea, I'm almost thinking it could possibly be liquid (just by a hair of temp) and be ok, suppose it wouldn't build out tho
04:31 AM rue_shop3: part of my interest is telling slicer I have 25mm filament :)
04:31 AM rue_shop3: and 34000 steps/mm :)
04:32 AM rue_shop3: 8-| they make wax sticks for glue guns...
04:32 AM Jak_o_Shadows: aha. I'm picturing a revolver now
04:33 AM rue_shop3: *bang!* its printed!
04:33 AM Jak_o_Shadows: Or more like for feeding wax sticks in :P
04:33 AM rue_shop3: if there is one thing I'v learned its that the average print dosn't use up much material
04:34 AM Jak_o_Shadows: stupid filament reel got caught again
04:34 AM Jak_o_Shadows: good thing it was mostly finished
04:35 AM rue_shop3: looped under another coil?
04:35 AM rue_shop3: cant let go of that end of the filament, tucks under other coils...
04:36 AM rue_shop3: well geez, wax sure is cheaper than pla
04:36 AM rue_shop3: I think
04:36 AM rue_shop3: I have to remmeber that chineese pictures make things look bigger than they usualy are
04:37 AM Jak_o_Shadows: nah. the reel got caught on a bit of the heated chamber, so it couldn't turn.
04:38 AM Jak_o_Shadows: So it steadily just pulled itself up to the ceiling of the chamber
04:38 AM rue_shop3: 7mm * 100mm
04:38 AM rue_shop3: damn, whats the volume of 1kg of pla?
04:40 AM rue_shop3: 2.85mm is the new thing eh?
04:41 AM Jak_o_Shadows: I thought it was 1.7
04:41 AM rue_shop3: I see 1.25g/cm^3
04:42 AM rue_shop3: so about 800cm^3
04:43 AM rue_shop3: call that $40
04:45 AM rue_shop3: wax @ 96cm^3 for $23
04:46 AM rue_shop3: no, thats awefull
04:46 AM rue_shop3: ok, I wont buy gluegun wax sticks
04:47 AM rue_shop3: (old candles from the 2nd hand store are almost free)
04:50 AM Jak_o_Shadows: bugger that warped a bit
04:52 AM Jak_o_Shadows: Usable mind
04:53 AM Jak_o_Shadows: Maybe I should pre-heat the build chamber
05:23 AM Snert: https://phys.org/news/2017-07-fuel-fukushima.html?utm_source=dlvr.it&utm_medium=twitter
05:25 AM Jak_o_Shadows: rue_bed, you had code for a stm32 that drove multiple servos? Could it be used to get multiple servos to run a profile? Can I have it please?
05:26 AM rue_house: didn't get around to ityet
05:26 AM rue_house: the current code only does 1 servo
05:26 AM rue_house: want it anyhow?
05:27 AM rue_house: to set up the multiple servos, I'd either use external 4017 or the DMA
05:27 AM rue_house: difference being 40servos or (io pin limit)
05:28 AM rue_house: ok, well
05:28 AM rue_house: 40 servos if you cap them at 2ms ea
05:28 AM rue_house: if you want 2.5ms (full range) its 8 servos
05:28 AM Jak_o_Shadows: nah, i have a single servo working
05:28 AM rue_house: preload the dma with
05:28 AM rue_house: 00000001
05:29 AM rue_house: 00000010
05:29 AM Jak_o_Shadows: But the DMA is tricksy to work with sometime, so I was hping you'd done that bit :P
05:29 AM rue_house: 00000100
05:29 AM rue_house: 00001000
05:29 AM rue_house: 000100000
05:29 AM rue_house: 001000000
05:29 AM rue_house: 01000000
05:29 AM rue_house: 10000000
05:29 AM rue_house: and each time your timer goes off, send the next byte to a port
05:29 AM rue_house: not the dma yet, sorry
05:29 AM rue_house: I got distracted
05:30 AM Jak_o_Shadows: no worries
05:30 AM rue_house: how many servos you want to run?
05:30 AM Jak_o_Shadows: I have a bunch more printing to do
05:30 AM Jak_o_Shadows: 3*4 + 6
05:30 AM Jak_o_Shadows: 30
05:30 AM rue_house: well, thats past the pin count for sure
05:30 AM rue_house: so 4x 4017
05:31 AM Jak_o_Shadows: TBH, instead of doing that, I would probably have sub-controllers
05:31 AM rue_house: you could use 74hc595 as a shifter too ( you dont ahve to load the whole thing)
05:31 AM rue_house: why, lots of headroom on the stm32
05:31 AM Jak_o_Shadows: The 6 has a bunch of kinematics in it
05:32 AM rue_house: THATS a seperate controller
05:32 AM rue_house: the one should just be doing the servo timing
05:32 AM Jak_o_Shadows: Oh yeah, I getch
05:32 AM rue_house: but, "I'm also insane" and have my code dialed up for MAX resolution on the servos
05:33 AM rue_house: kinematic controller -> servo controller -> 4017 ->servos
05:33 AM Jak_o_Shadows: well, separate controller is easy enough.
05:33 AM rue_house: the 4017 is just an io expander really
05:33 AM Jak_o_Shadows: My issue here is assembling that. I am fairly lousy at protoboards
05:33 AM veverak: I could finally do the servo feedback thing
05:33 AM rue_house: I wonder if I ahve that picture around...
05:34 AM rue_house: veverak, I got it all working
05:34 AM rue_house: I have it so that it cuts the servo out over 10% load
05:34 AM Jak_o_Shadows: rue_house, the one where you added the row of pins and stuff to the atmega so it worked nice?
05:34 AM rue_house: which was just a quick and dirty way of testing it
05:34 AM rue_house: Jak_o_Shadows, thats my 8*4 servo controller
05:34 AM rue_house: (you can put 4 of them on a bus)
05:35 AM rue_house: (serial bus, 9600N81)
05:35 AM rue_house: but otherwise no, the stm32 did the load detection on the servo
05:36 AM rue_house: I had the ADC for position detection, the pulse meter for load measurement, and the control bit
05:36 AM rue_house: via a pot, cause, sure, thats quick
05:36 AM Jak_o_Shadows: yeah.
05:37 AM veverak: rue_house: got the code/circuit somewhere?
05:37 AM rue_house: hah, yea
05:37 AM rue_house: http://ruemohr.org
05:37 AM rue_house: hmmmm
05:38 AM rue_house: http://ruemohr.org/~ircjunk/software/stm32.tgz
05:38 AM rue_house: I think thats everything
05:38 AM rue_house: EVERYTHING I'v done yet
05:41 AM veverak: cool
05:41 AM rue_house: building stm32 projects is kinda hit-and-miss cause of the lack of standard libraries just now
05:42 AM rue_house: that makefile was a LOT of work
05:57 AM synja: just write your own in C
05:57 AM synja: works well enough
05:58 AM synja: i personally love it
07:07 AM Jak_o_Shadows: What the piss
07:07 AM Jak_o_Shadows: 3d printer temperature jumps to above 700
07:10 AM Jak_o_Shadows: yup, contacts were shorting on the thermistor near the hot end
11:06 AM rue_bed: didn't you do 'tighten all your screws day' week before last?
11:06 AM rue_bed: maybe you weren't there
11:06 AM rue_bed: its only 8!?
11:06 AM rue_bed: baaaaack to sleeeeeeeep
11:12 AM rue_bed: tap tap tap... tap tap...
11:12 AM rue_bed: there's no sleep left
11:12 AM rue_bed: wtf
11:12 AM rue_bed: ... k, so I'm awake.
11:13 AM rue_bed: and what is.... oh, I'm hungy.... huh
11:13 AM rue_bed: great, so nonally am I awake, I'm gonna have to eat
12:06 PM Casper: For SLA, there is some 10 to 13AH batts with the same physical size, are they as good/resistant? or the higher AH is more fragile? high vibration application...
12:07 PM rue_house: just cheaper to get less capacity
12:07 PM rue_house: and ligter
12:08 PM rue_house: jhylands, did you ever try that constand current string tensioner?
12:08 PM rue_house: constatnt current dc motor string tensioner
12:09 PM Casper: ebike batts
12:09 PM Casper: for the little difference in price, it's a good gain
12:09 PM Casper: if they are as good
12:11 PM rue_house: yes, if your wallet is big enough go with li-ion instead of lead
12:16 PM Casper: I checked the lithium ones, and... it's not worth it
12:16 PM Casper: the bike is 9 years old, and I can't have parts for it
12:17 PM Casper: seriously, 140$USD/battery, 100$USD wheel... 2 batts and 1 wheel + shipping: 500$USD
12:19 PM Casper: would you get a BB or panasonic/bsg brand? for sla?
01:09 PM rue_shop3: ok, so what I need for the mecha next (amongst everything) is a valve bank for the double acting muscle setup
01:09 PM rue_shop3: I have enough for 1
01:14 PM jhylands: rue_shop3, I didn't - the contract ended up getting cancelled
01:54 PM mulvane_ is now known as mulvane
01:58 PM anniepoo: rue, that's a big robot you're making. Is it safe?
02:05 PM zhanx: of course not
02:05 PM zhanx: but it is cool
02:05 PM rue_shop3: anniepoo, haha, no, of course its not safe!
02:05 PM rue_shop3: but I wont be in it
02:05 PM anniepoo: ok, great
02:05 PM rue_shop3: nobody will
02:05 PM rue_shop3: it would have to be 20' high for that
02:05 PM rue_shop3: and I just cant go there
02:06 PM anniepoo: do be safe around it - lot of energy in a robot that big
02:06 PM rue_shop3: 2 HP!
02:06 PM rue_shop3: stored up in an air tank...
02:07 PM rue_shop3: zhanx, bring me a 2HP, oil sumpless engine that can run in any oriantation :)
02:07 PM rue_shop3: well, 2HP, omniorientatable
02:07 PM rue_shop3: I'm thinking propane is a good idea
02:07 PM rue_shop3: hmm turbine?
02:07 PM rue_shop3: how big is a 2HP propane turbine?
02:08 PM anniepoo: is 2HP enough?
02:08 PM rue_shop3: yea, thats doubled and squared of what I expect to need
02:08 PM zhanx: how big? same size as a gas engine
02:08 PM rue_shop3: hmm
02:08 PM rue_shop3: think I could make one from a supercharger?
02:08 PM zhanx: propane is just the carb or injection
02:08 PM zhanx: you could with work yes
02:08 PM rue_shop3: prolly not effeciently enough
02:09 PM zhanx: i would think not
02:09 PM rue_shop3: pulse jet?
02:09 PM rue_shop3: ... pulse turbine?
02:09 PM zhanx: way inefficient
02:09 PM rue_shop3: muffling that would be .... impossable?
02:10 PM zhanx: turbine, you can't drag on it much to power things
02:10 PM zhanx: you can't muffle it
02:10 PM rue_shop3: 2hp, running the two AC compressors
02:10 PM rue_shop3: so LOTS of reduction
02:10 PM rue_shop3: as I suspect I need 4krpm tops
02:10 PM zhanx: umm. let me think
02:11 PM zhanx: ford escape electric hub with a way to charge it would do that
02:11 PM zhanx: but battery weight sucks
02:12 PM zhanx: no way to clock the engine to make sure its got oil at all times? I.e. own pod that moves
02:12 PM zhanx: if not then we talk sand filled engines etc
02:12 PM rue_shop3: my closest solution is a sump-free, mixed gas engine
02:13 PM rue_shop3: with some kinda oil sprayer on the intake and running on propane
02:13 PM zhanx: or silicone for lube
02:13 PM zhanx: fyi it works but stinks
02:13 PM rue_shop3: I'm gonna play with that horiz shaft engine, and see if I can make it into a 2stroke
02:14 PM zhanx: for propane use a gas grill regulator as a start to feed the carb
02:15 PM rue_shop3: I dont know how critical the ratio of the compression stroke is, so I dont know if the size of the crankcase is that important
02:15 PM SpeedEvil: ratio of the stroke to what.
02:15 PM rue_shop3: on the compression stroke, the compression ratio
02:15 PM zhanx: compression at low end 6.5:1 and it should run
02:16 PM rue_shop3: the power stroke is still in the normal cylinder area, I hope
02:16 PM zhanx: you need a gauge to test it
02:16 PM rue_shop3: I have one somewhere
02:16 PM rue_shop3: but I can fill the crank case with a dummy filler
02:16 PM zhanx: anything under 6.5 and you might start running in to the old hit or miss engine type
02:17 PM zhanx: sand
02:17 PM zhanx: heck you can fill the engine with sand inject oil and fuel and never over heat it as long as you got some air cooling
02:20 PM zhanx: rue you are using an alt or a gen to provide power from the engine?
02:37 PM tttb2 is now known as tttb
04:02 PM Xiao is now known as SAXiao
04:13 PM Tom_itx is now known as Tom_L
04:19 PM z64555: "inject with sand"
04:19 PM z64555: wait, no
06:57 PM synja: well, i've decided to clothe my robots, and i don't have my sewing machine anymore..
06:57 PM synja: do i send them to a seamstress?
06:57 PM synja: b/c i know of a good one..
06:58 PM synja: i guess i could do wave freq. patterns in the stitching for optimal strength under minimal work
06:59 PM synja: tbf alicia needs legs first
06:59 PM synja: but there are a LOT of wires
07:00 PM synja: pressure sensors, temp. & servo motors of high torque make for about 38 components in the arms alone
07:00 PM synja: those stm32s worked wonders
07:01 PM synja: marine battery with onboard charger and i've been working on teaching her to plug herself in
07:34 PM OniGuru: picture
08:17 PM synja: lol sure
08:19 PM anniepoo: synja - yes, actually, a professional sewer could make robot clothes
08:20 PM synja: g2k
08:20 PM synja: if i had a machine i would def. do it myself :(
08:20 PM synja: postimg.org/image/p9bpc5tdr
08:20 PM synja: i think
08:21 PM synja: yep
08:21 PM synja: adept at cleaning the house with full nlp
08:21 PM synja: i'm delaying working her emotions right now
08:23 PM anniepoo: synja, if you have more time than money, hand sewing's not all that insanely slow if you're doing a runningstitch
08:24 PM synja: oh yes, i've done it before
08:24 PM anniepoo: also, if you visit goodwill you might find clothing you can alter
08:24 PM anniepoo: that's often faster than making from scratch
08:24 PM synja: lol she will look like ET if i put a t-shirt on her
08:25 PM synja: of course, the legs are still missing on her
08:25 PM anniepoo: isn't she sitting on a roomba?
08:26 PM synja: lol yes she is. power modulated from the battery, with an rs232 having her control its HAL
08:26 PM synja: as i said, she's a cleaning robot, but most of the drones do the vacuuming these days
08:26 PM synja: she doesn't really fit under anything anymore
08:27 PM Jak_o_Shadows: rue, I don't know that screws would help here - it's was the two crimped connections to the hot-end thermistor, right at the thermistor end.
08:27 PM synja: well, the sexbot sisters are gathering resources online to fund her legs :P
08:29 PM Jak_o_Shadows: Also, I realise now that I bought the wrong sized bearings
08:30 PM Jak_o_Shadows: also that I don't know where the rest of those bearings are.
08:30 PM Jak_o_Shadows: I can only see 4 in use, where it came in a pack of 10
08:48 PM anniepoo: bearings seem to have that property
08:48 PM anniepoo: I recently had to buy another pack of them. Bought 10, they arrived, then the whole pack disappeared
08:51 PM Jak_o_Shadows: I've decided to semi standardize on 623zz bearings
09:04 PM synja: lol
09:06 PM Jak_o_Shadows: They may be bearings of a pretty meh quality, but better than nothing, and c heap cause 3d printers
10:35 PM rue_house: OMG I need 47 washing machine valves for the mecha,
10:35 PM rue_house: I have 29!
10:35 PM Casper: hmmm just make the missing ones!
10:35 PM rue_house: I didn't know I was that close
10:36 PM rue_house: I need 94 dishwasher valves tho :(
10:36 PM rue_house: I'm at like 25
10:37 PM Casper: aliexpress some!
10:37 PM rue_house: nope, it'd go completely over budget
10:37 PM rue_house: unless I can get them for like $1.50ea, I just need too many
10:38 PM Casper: at twice that budget you easilly find some
10:39 PM rue_house: Casper, you work out how to make a 12' mecha for $240 and get back to me
10:39 PM Casper: then go hunting :D
10:39 PM rue_house: I need to take some metal in
10:40 PM Casper: if you happend to find an electric bike battery, currie electro drive system, then let me know, I need 2 cases for the battery
10:40 PM rue_house: I have one, a cell is shot or something
10:40 PM rue_house: not taken it apart
10:41 PM rue_house: its like 48V
10:41 PM Casper: 24V for that one
10:46 PM synja: that's going to be near impossible rue_house
10:46 PM rue_house: you can say that all you want, I'm almost done
10:46 PM synja: and i assume you have most of the parts
10:46 PM synja: pics?
10:46 PM rue_house: havn't gathered pics in a while
10:46 PM rue_house: the parts are everywhere
10:46 PM synja: takes a second
10:47 PM rue_house: :/ I cant find logn shaft pots from china
10:49 PM synja: if i had a 12' mecha i would also make an animatronics version of Alien to battle
10:49 PM synja: b/c if i had the money for one, i'd certainly have the money for the other
10:49 PM rue_house: I'm having motivation problems with assembly
10:50 PM rue_house: but everything I do leaves me in awe
10:50 PM rue_house: I been gathering valves for like 3 years, I have like 60
10:50 PM rue_house: I need, 139
10:54 PM rue_house: hahahah
10:54 PM rue_house: https://www.aliexpress.com/item/Free-Shipping-Mini-Servo-motor-potentiometer/1855177392.html
10:54 PM rue_house: or buy a whole servos for like $2.50
10:54 PM rue_house: with horns
11:05 PM rue_house: I'm sorry, SG90 servos are $1.22 ea
11:09 PM synja: i don't go with those
11:09 PM synja: i buy some high torque ones from therobotshop or something
11:09 PM synja: good deal
11:09 PM synja: wait no
11:09 PM synja: some rc electronics
11:37 PM rue_shop3: I rmemeber when $10 ea was an awesome price
11:37 PM rue_shop3: need to design a popular 3d printer with them, the price will go thru the floor
11:38 PM rue_shop3: I'm starting to lose resistance about the idea of making the next printer
11:46 PM Jak_o_Shadows: sigh
11:46 PM Jak_o_Shadows: the nozzle was too close, somehow, and it ground the filament thorugh
11:58 PM rue_shop3: your having fun aren't ya?
11:58 PM rue_shop3: is all this with the same printer?
11:58 PM rue_shop3: is it a diy?