#robotics Logs
Jun 14 2017
#robotics Calendar
12:00 AM rue_house: so its about 302F
12:03 AM anniepoo: https://images-na.ssl-images-amazon.com/images/I/518osUl2WdL.jpg
12:03 AM anniepoo: the gun I have
12:03 AM rue_house: P and Lexmark toner melts at 170 - 180?C (338 - 356?F).
12:03 AM rue_house: mmm
12:03 AM anniepoo: https://images-na.ssl-images-amazon.com/images/I/51j00MC4n%2BL._SL1000_.jpg
12:03 AM anniepoo: kevins gun
12:03 AM rue_house: I'm confused
12:03 AM rue_house: powder comes out between the two tings at the end?
12:03 AM anniepoo: anyway, pc powder is messy, but you just pour from bag to jar, then when you apply the electrostaic keeps it from going everywhere
12:03 AM anniepoo: if you make a mess you're doing it wrong
12:03 AM anniepoo: yes
12:03 AM anniepoo: it's more a 'poofy cloud' than a spray
12:03 AM rue_house: the back end is just a standard air gun
12:03 AM anniepoo: yes
12:03 AM rue_house: I presume there is a venturi in there
12:03 AM anniepoo: yes, then a straight barrel
12:03 AM anniepoo: with a rod down center to do the charging
12:03 AM rue_house: with a HV coil
12:03 AM rue_house: ah
12:03 AM anniepoo: and the plastic disk thing to make the cloud
12:03 AM anniepoo: yes, hv in the box.
12:04 AM anniepoo: you need a button
12:04 AM rue_house: A SMALL PEICE OF PLASTIC! I HAVE A PRINTER THAT MAKES THOSE!
12:04 AM anniepoo: I taped my button to the gun so I could do it with one hand
12:04 AM rue_house: its a solid rod then.
12:04 AM anniepoo: actually, you could 3d Print most of it
12:04 AM rue_house: is the voltage adjustable?
12:04 AM anniepoo: yes, it's a 1/8" stainless steel rod, I'd guess
12:05 AM anniepoo: mine's not, this is the 'dual voltage' setup
12:05 AM anniepoo: but generally you just want as much voltage as you can get
12:05 AM rue_house: so not 0-A but A or B
12:05 AM anniepoo: yes
12:05 AM anniepoo: and that's a great plenty
12:05 AM rue_house: 30kV?
12:05 AM anniepoo: there's one occasion when you want less voltage
12:06 AM anniepoo: 30KV is minimal - if you're making one, shoot for 50Kv ./ 100kv
12:06 AM rue_house: oooo
12:06 AM anniepoo: that's filling in recessed areas
12:06 AM rue_house: whats the grey thing that looks like a pwoer connector?
12:06 AM anniepoo: you get 'faraday cage effect'
12:06 AM anniepoo: that's the button
12:06 AM rue_house: aha!
12:06 AM anniepoo: get HV when you push button
12:06 AM rue_house: self destruct?
12:06 AM rue_house: ahhhh
12:06 AM anniepoo: sometimes you want to run gun without HV
12:07 AM rue_house: so I need to find a venturi
12:07 AM anniepoo: but yeah, you could totally make one of these
12:07 AM anniepoo: it looks like it's just a lathe turned piece of UHMW
12:08 AM rue_house: https://www.aliexpress.com/item/New-DC-3V-6V-bis-400kV-400000V-Boost-Step-up-Power-Module-High-Voltage-Generator/32766176463.html
12:08 AM rue_house: 400kv?
12:08 AM anniepoo: that's excessive
12:08 AM rue_house: no, its only $2
12:08 AM rue_house: :)
12:08 AM anniepoo: lol - that's listed under 'video games'
12:09 AM z64555: ?
12:09 AM rue_house: I have god-knows-how-many laser printer parts...
12:09 AM anniepoo: Home > All Categories > Consumer Electronics > Video Games > Modules
12:09 AM rue_house: tho I dont think they over over about 50kv
12:10 AM anniepoo: well, at 400K you're going to get horrible faraday effect
12:10 AM z64555: maybe its a mistranslation... electronics/video games
12:11 AM rue_house: there seems to be a gap between 30kv and 400kv
12:12 AM rue_house: anniepoo, so, if you were gonna pick a votlage?
12:12 AM anniepoo: I'd do dual voltage, somewhere around 80K and somewhere around 40K
12:15 AM rue_house: https://www.aliexpress.com/item/50KV-AC-220V-High-Voltage-Generator-Module-Pulse-Ignition-1A-2A-High-Frequency-High-Power-Fuel/32788920118.html
12:15 AM rue_house: hmm
12:15 AM anniepoo: maybe 100K if you're doing really big parts
12:15 AM anniepoo: you can always use a resistor divider chain
12:15 AM anniepoo: if you get a mass of 100 meg resistors you can put them in series, coat with HV jelly
12:15 AM anniepoo: and tap off wherever you want
12:15 AM anniepoo: arcing gets crazy as you get above about 40K
12:15 AM anniepoo: 8cP
12:15 AM anniepoo: been there, done that
12:15 AM z64555: eq
12:15 AM z64555: *ew, even
12:16 AM z64555: what's this? DC?
12:16 AM rue_house: generally, for powder coating, yea
12:17 AM anniepoo: yup, DC
12:19 AM z64555: omg.
12:19 AM z64555: that $2 400kV module
12:20 AM z64555: is most like a circuit board encased in a rubber cylinder
12:20 AM z64555: *most likely
12:20 AM rue_house: https://www.aliexpress.com/item/Consumer-Electronics-Shop-Free-shipping-DC-3-6V-to-40kV-Boost-High-voltage-Generator-Booster-Ignition/32602433722.html
12:20 AM rue_house: got one
12:21 AM rue_house: https://www.aliexpress.com/item/DC-6V-12V-80KV-High-Voltage-Generator-Transformer-Boost-Inverter-Module-15mm-Arc-Output-DC-80KV/32806303715.html
12:21 AM rue_house: got it
12:21 AM rue_house: ok
12:21 AM rue_house: venturi
12:21 AM rue_house: or anniepoo are you saying its a super simple venturi I should just make?
12:22 AM anniepoo: yes
12:22 AM rue_house: how do you never the poder?
12:22 AM rue_house: lkjsdfl
12:22 AM anniepoo: what?
12:22 AM rue_house: how do you meter the powder?
12:22 AM anniepoo: just by adjusting air flow
12:22 AM anniepoo: it doesn't have to be precise.
12:22 AM anniepoo: the process is self limiting
12:25 AM rue_house: is tehre a pickup tube?
12:25 AM anniepoo: cause the powder acts as insulator
12:25 AM anniepoo: yes
12:25 AM rue_house: https://www.aliexpress.com/item/1-2-3-4-inch-Irrigation-Venturi-Fertilizer-Mixer-Injectors-Agriculture-Garden-Water-Tube-Garden-Hot/32724480190.html
12:25 AM anniepoo: it's about 1/4" ID. For some reason it's a piece of pretty thick UHMW, about 5/8 OD
12:25 AM rue_house: what dia is the pickup?
12:25 AM anniepoo: you have to control how much is in the jar
12:25 AM anniepoo: you want it about at the level of the bottom of the pickup tube
12:25 AM anniepoo: with stops about 8cm short of bottom of jar
12:26 AM rue_house: but the dia of the pickup tube
12:27 AM anniepoo: it's about 1/4" ID. For some reason it's a piece of pretty thick UHMW, about 5/8 OD
12:27 AM anniepoo: that's what I meant
12:27 AM rue_house: :)
12:27 AM anniepoo: the gun tube's bigger
12:27 AM anniepoo: maybe 1" od and 1/2" ID
12:28 AM anniepoo: don't buy your powder at harbor freight
12:28 AM anniepoo: good powder is MORE than worth it
12:29 AM anniepoo: and it goes bad after a while
12:29 AM anniepoo: clumps up
12:30 AM anniepoo: also, while it's easy to clean up, if you don't get every last bit when you change color, you'll suffer.
12:30 AM anniepoo: cause unlike paint, the colors don't blend
12:30 AM rue_house: toner cartridges
12:30 AM anniepoo: they make an ugly speckle look
12:30 AM anniepoo: toner won't work
12:30 AM rue_house: I have to try it
12:30 AM rue_house: unless you try it first?...
12:31 AM anniepoo: LOL - that sounds like a disaster
12:31 AM anniepoo: if you have a hv source, you can try it
12:31 AM anniepoo: actually, even without
12:31 AM anniepoo: put tin foil in oven, heat to 450
12:31 AM rue_house: ye, but unlike me, you will know that its a disaster and i wont be sure what part is making it one
12:31 AM anniepoo: (might be better to use a bit of scrap metal, more thermal mass)
12:31 AM rue_house: its electrostatic powder, thats how the laser works
12:32 AM anniepoo: hang hot part from wire in a pickle bucket, free of bottom a few inches
12:32 AM rue_house: but your point is extremely valid
12:32 AM anniepoo: shake toner into bucket off to one side
12:32 AM anniepoo: might want to have some cover with a small hole
12:33 AM anniepoo: you want a cloud of toner
12:33 AM * rue_house just drops a cartridge to demonstrate the cloud
12:33 AM rue_house: <everything is black>
12:33 AM anniepoo: don't touch part, stick it back in oven for 20 mins at 400 if it's powder coat powder
12:33 AM * rue_house points
12:33 AM rue_house: I have yellow, magenta, and blue too!
12:34 AM rue_house: how thick is the powder coat when its put on?
12:34 AM rue_house: .25mm? .5mm?
12:34 AM rue_house: 2mm?
12:34 AM anniepoo: might change those numbers to be 150C if that's what toner gets
12:35 AM anniepoo: it's about 1-2mm
12:35 AM anniepoo: tends to increase about 50% when it films over
12:35 AM anniepoo: you bring temp up until it becomes a fluid
12:35 AM anniepoo: then it'll gloss over
12:35 AM rue_house: I was gonna spend $50 on a lcd screen for driving the mecha, but I'll spend $6 on powder coater parts
12:35 AM anniepoo: then you reduce (400 for powder coat poweder) and bake 20 mins
12:35 AM rue_house: steady temp?
12:36 AM rue_house: ah
12:36 AM anniepoo: before coating, wash part with acetone
12:36 AM anniepoo: I use 'prep all', but I'm going for quality
12:36 AM anniepoo: and prepall is $20 a can
12:36 AM rue_house: hows it gonna peel like a gmc if I dont have an oil layer under the paint?
12:37 AM rue_house: or was it a ford that does that
12:37 AM anniepoo: if you have proper PC application, it's insanely tough
12:37 AM rue_house: toner is pretty hard too
12:37 AM anniepoo: you ever notice that much farm machinery, esp. John Deere, is unnaturally clean and bright?
12:37 AM rue_house: I'll try some on a peice
12:37 AM z64555: I have a GMC sierra and a chevette rusting on the lot
12:38 AM anniepoo: for electrostatic, tin foil's good to practice on
12:38 AM z64555: the chevette's outside is in better shape than the sierra
12:38 AM rue_house: oh oh oh is your sierra missing its engine too!
12:38 AM anniepoo: you get quick feedback
12:38 AM z64555: no, it got replaced at least twice by my brother
12:38 AM rue_house: anniepoo, how bigs the barrel of it, 1/2" or 3/4"?
12:38 AM z64555: he didnt understand the concept of "check the oil"
12:39 AM anniepoo: properly applied powder coat on tinfoil, you should be able to repeatedly crumple and smooth the tinfoil without getting defects in the coating
12:39 AM rue_house: aren't they interfearence engines with bad timing belt design?
12:39 AM rue_house: anniepoo, !
12:39 AM anniepoo: OD is 1" I think, ID is 1/2
12:39 AM anniepoo: hang on, will measure
12:39 AM * rue_house wiats over the 'buy' button
12:40 AM z64555: nah, he put engines from somewhere else, I don't know where, but it's definitely not stock
12:40 AM z64555: it hasn't run since the turn of the millenia
12:41 AM mrdata_ is now known as mrdata
12:45 AM rue_house: oh wait, mines a sanoma
12:45 AM anniepoo: ok, went and looked at the gun
12:45 AM anniepoo: So, it's even simpler
12:45 AM rue_house: ?
12:45 AM rue_house: its an air gun, like on a tire filler
12:45 AM anniepoo: lets call the horizontal tube the discharge tube
12:45 AM rue_house: with...
12:45 AM rue_house: ok
12:46 AM anniepoo: 35mm OD
12:46 AM anniepoo: i didn't get length, but roughly a foot
12:46 AM anniepoo: got a 15mm ID hole bored in it, that either stops at centerline of jar, or they pushed in a plug
12:47 AM rue_house: ~.5"
12:47 AM rue_house: to hold the rod
12:47 AM anniepoo: this hole has a 3mm steel rod down center. somehow that rod's supported, and connected to HV wire at the back end
12:48 AM rue_house: yup
12:48 AM anniepoo: small hole back end where HV wire goes in, I cdan't see exactly how that works, you can figure something
12:48 AM anniepoo: ok
12:48 AM anniepoo: attach a jar cap directly under the plug
12:48 AM rue_house: yea
12:48 AM anniepoo: the jar is 145mm high
12:49 AM rue_house: right
12:49 AM anniepoo: on the back end (where the air gun is), before the plug, run a tube down into jar
12:49 AM anniepoo: this too is UHMW
12:49 AM anniepoo: 17.5mm OD 6.5mmID
12:49 AM anniepoo: 115mm long
12:49 AM anniepoo: this is the air supply
12:50 AM anniepoo: it's a fluidized bed
12:50 AM z64555: is this anyway similar to the construction of a cathode ray tube?
12:50 AM rue_house: ah
12:50 AM rue_house: aaah
12:50 AM anniepoo: you cover this tube 50mm or so with powder in operation
12:50 AM anniepoo: and the air turns it into fluid cloud
12:50 AM rue_house: like a fire extinguissher
12:51 AM anniepoo: in FRONT of the plug is a second tube running down into jar, same dia
12:51 AM anniepoo: but it's short - maybe 15cm beyond jar lip
12:51 AM anniepoo: so the powder filled air exhausts out that into the discharge tube
12:51 AM anniepoo: picks up electricity from the rod
12:52 AM rue_house: eek, hope the exhaust line cant plug and pop the bottle apart
12:52 AM anniepoo: and then that disk on the end makes it turbulent
12:52 AM anniepoo: you only want a few PSI
12:52 AM rue_house: oooh
12:52 AM rue_house: not 1000
12:52 AM rue_house: er 100
12:52 AM anniepoo: I run at about 10psi on my gage
12:52 AM anniepoo: and you need a drier
12:52 AM rue_house: yea
12:53 AM anniepoo: dry air is super important
12:53 AM rue_house: for the sand blaster too
12:53 AM anniepoo: I'd 3d Print the whole thing
12:53 AM anniepoo: except the bottle
12:53 AM anniepoo: you want some extra bottles from your PC supplier
12:53 AM rue_house: my 3d prints leak air like a siv
12:54 AM rue_house: which is great if you r making a siv
12:54 AM anniepoo: hmm
12:54 AM rue_house: and water
12:54 AM anniepoo: yah, that's an issue
12:54 AM z64555: sieve?
12:54 AM anniepoo: oooh, crap
12:54 AM rue_house: oh, its way past bedtime...
12:54 AM anniepoo: that's a HUGE issue for us!
12:54 AM anniepoo: never thought of it
12:54 AM rue_house: I think it depends on the printer
12:54 AM anniepoo: settings probably
12:55 AM rue_house: print my 3d hose cap and give it a try
12:55 AM anniepoo: I will
12:55 AM rue_house: https://www.thingiverse.com/thing:693149
12:55 AM anniepoo: 8cD
12:55 AM anniepoo: ok, all
12:56 AM anniepoo: I'm headed home
12:56 AM rue_house: goodnight
12:56 AM anniepoo: whoo... had a good day... finished snail shell
01:01 AM rue_house: :)
03:58 AM Jak_o_Shadows: The PNP transistors are for the servo current sensing :D
04:06 AM Jak_o_Shadows: Also, a stewart platform with current sensing servos COULD be used as a 6DOF input device/haptic feedback.
04:06 AM Jak_o_Shadows: I suspect the non-linearity of it woud be a little annoying though.
04:27 AM deshipu: there are devices like that
04:27 AM deshipu: but I think they use better sensors
04:30 AM Jak_o_Shadows: yeah
09:18 AM rue_house: Jak_o_Shadows, oh
09:19 AM rue_house: I still need to set up the code to work out the direction of the force
10:18 AM SpeedEvil: rue_house: Just close your eyes, and believe!
11:34 AM anniepoo: @rue_house: Any objection to me putting your stm32 stuff on github? I want to get it under source control
11:44 AM anniepoo: seriously, every haptic feedback system I've seen was cheap permag motors, an encoder, and current sensing under the hood
12:20 PM z64555: hm, anybody have experiance with stirling motors?
12:21 PM z64555: *engines
12:32 PM anniepoo: nope
12:32 PM anniepoo: popular home shop machinist type project
12:33 PM z64555: yeah, trying to come up with a crude one to act as an air pump for a forge/furnace
12:39 PM z64555: I'm wondering if anybody tried an eccentric turbine/squirrel cage design
12:41 PM * anniepoo is here, with an actual squirrel in a cage
12:41 PM anniepoo: I'm not getting enough power to power this blower 8cD
12:41 PM anniepoo: aww... I had just the thing for you. I had an air bed, it sprang a leak, I salvaged the blower
12:42 PM anniepoo: but I gave it to our foundryman
12:42 PM z64555: it's ok, I've got several AC window units that I can cannibalize
12:43 PM z64555: hmm...
12:43 PM SpeedEvil: Actual efficient stirling enines are majorly problematic
12:43 PM z64555: I don't think I even need the chamber to be eccentric
12:43 PM SpeedEvil: (by efficient, I mean non-toy)
12:43 PM z64555: just some bypass valves
12:43 PM z64555: SpeedEvil: you mean practical. :P
12:44 PM SpeedEvil: eys
12:44 PM SpeedEvil: https://www.youtube.com/watch?v=M9UKu-AP02k
12:44 PM SpeedEvil: I would look up that.
12:44 PM SpeedEvil: Then I would try to find patents from philips in that year
12:45 PM z64555: there's several different piston designs, but I'm interested in a rotary
12:45 PM SpeedEvil: seals are very un-fun.
12:46 PM SpeedEvil: ^rotary
12:47 PM z64555: I don't need a whole lot of power, just something to spin a prop or a blower
12:47 PM z64555: hm, which, an AC window unit has both
12:48 PM SpeedEvil: yes, you need enough power to overcome the losses in the system though.
12:48 PM SpeedEvil: Which isn't trivial.
12:48 PM anniepoo: buncha designs in home shop machinist
12:48 PM SpeedEvil: Compared to say a 10W electric motor
12:49 PM anniepoo: yup- thee's a very, very good reason why railroads don't use steam engines any more
12:50 PM SpeedEvil: steam is much easier
12:53 PM z64555: diesel-electric locomotives have a higher degree of control over their power output
12:54 PM z64555: they don't have to keep a fire burning all the time, and they don't have to wait several minutes to bring the boiler temp up
12:55 PM SpeedEvil: That is not actually meaningful in many cases with scheduled service
12:55 PM z64555: k.
12:56 PM z64555: so what is the meaningful reason?
12:57 PM SpeedEvil: Efficiency and cost of operations.
12:57 PM SpeedEvil: Also safety.
12:57 PM SpeedEvil: Though in principle, modern steam would not have nearly as many safety issues
12:58 PM z64555: modern steam being?
12:58 PM SpeedEvil: Steam made with modern materials.
12:58 PM SpeedEvil: Corrosion resistant boiler desins, with proper margins and design for failure.
01:34 PM * z64555 grumbles as he replaces a plug on a box fan
01:34 PM z64555: "This plug is a safety device. Do not attempt to tamper or replace it"
01:51 PM deshipu: I need a "no serviceable parts inside" t-shirt
01:53 PM z64555: I just find it ridiculous that they put a fuse inside a plug, and not make it replacable
01:54 PM z64555: ffs, they have fused plugs on christmas lights
01:54 PM z64555: but not box fans??
07:14 PM rue_house: anniepoo, you go for it, maybe scribble my nick in the main.c's and a ref to freenode ##robtoics
07:15 PM anniepoo: cool
07:15 PM anniepoo: I wiil
07:15 PM anniepoo: thanks
07:19 PM Tom_itx: add mine too as a 'backer'
07:20 PM rue_house: and yourself under worldwide distrubutor
07:20 PM rue_house: :)
07:20 PM rue_house: how about bolt as lead lurker
07:21 PM rue_house: if it weren't for the tonnes of non-contributing lurkers, we wouldn't have anything close to 85 people in here
07:22 PM rue_house: were down a bit from the 212 a few years ago
07:22 PM rue_house: p.s. ANNIEPOO
07:22 PM Tom_itx: was it that high?
07:22 PM anniepoo: yes?
07:22 PM rue_house: I was looking at a maual for a dual voltage sprayer during lunch today
07:22 PM rue_house: '15kv / 20kv'
07:22 PM rue_house: :/
07:22 PM rue_house: :)
07:23 PM anniepoo: yah, cheapy ones are lower voltage
07:23 PM rue_house: aaaah
07:23 PM rue_house: ok
07:23 PM anniepoo: mine's supposed to be 25KV
07:23 PM rue_house: I was amused how many times the instructions said ' if this happens, clean off all the powder and start again '
07:25 PM rue_house: so I should see if one of the reflow ovens works
07:25 PM rue_house: try a test of some toner
07:32 PM rue_house: I just need to wake up
07:32 PM anniepoo: can't believe you're trying to use toner
07:35 PM rue_house: compare the two, aside from iron in the toner, I cant tell
07:43 PM rue_house: wtf... "always be yourself unless you can be a unicorn, then anways be a unicorn"?
07:50 PM z64555: we are in the age of meme's where nothing popular makes sense
07:54 PM z64555: blah, I need to come up with some UHF test equipment
08:03 PM rue_house: where is army of evil robots anyhow?
08:26 PM Tom_itx: winning the war
08:44 PM * z64555 researches spectrum analyzers
08:54 PM * z64555 researches superheterodyne recievers
08:56 PM rue_shop3: if I put two charge sources in series, what happens?
08:57 PM Tom_itx: surprised you asked instead of just trying it
08:57 PM Tom_itx: there are different types of chargers too
08:57 PM rue_shop3: no
08:57 PM rue_shop3: charge sources
08:57 PM rue_shop3: aka sensors that output a fixed number of electrons per their input
08:59 PM z64555: my naive answer is "They'd add together"
08:59 PM rue_shop3: wouldn't they do that in parallel?
09:00 PM z64555: assuming the second charge source doesn't blow up
09:00 PM rue_shop3: as I think about it, I think that one would just dump into the other, that would dump into the upstread amp
09:00 PM rue_shop3: peizo is a force->charge converter
09:00 PM z64555: what's being output? voltage or current?
09:00 PM rue_shop3: dF -> Q
09:00 PM rue_shop3: charge
09:01 PM z64555: so current
09:01 PM rue_shop3: no
09:01 PM rue_shop3: charge
09:01 PM z64555: dF/t -> A
09:02 PM rue_shop3: no
09:02 PM rue_shop3: i/t
09:02 PM rue_shop3: dF/t -> i/t
09:03 PM z64555: ah, right
09:03 PM * z64555 dohs
09:03 PM rue_shop3: q=i/t
09:03 PM rue_shop3: and I thik its Fdt
09:07 PM z64555: hm, well that's undefined behavior then
09:08 PM z64555: so either nothing meaningful happens or the second charge source blows up
09:13 PM z64555: yay, caffeine crash headache
09:18 PM z64555: rue_shop3: treat them as capacitors
09:19 PM rue_shop3: I think armyofevilrobots forgot
09:19 PM rue_shop3: uuuugh
09:28 PM rue_shop3: the peizo aint gonna blow up
09:52 PM nnumerals is now known as solol
10:39 PM rue_shop3: ar,....ar... no
10:40 PM z64555: ?
10:40 PM rue_shop3: waiting for armyofevilrobots
10:56 PM rue_house: *sigh*
10:57 PM rue_house: ok, so hows my todo list
10:57 PM Tom_itx: nobody to play with?
10:57 PM rue_house: I seem to have added a powerder coat sprayer to the list
10:58 PM rue_house: Tom_itx, there rarely is
10:58 PM Tom_itx: that was out of the blue
10:58 PM Tom_itx: why do you want to powdercoat now?
10:58 PM rue_house: no, a buddy has been telling me he will get one for quite a while
10:58 PM rue_house: well I have a LOT of toner
10:59 PM Tom_itx: ya but you need bright colors
10:59 PM rue_house: so I regard black powercoat to be in surplus
10:59 PM rue_house: well I also have yellow, blue, and magenta in small quantities
10:59 PM rue_house: wow does it ever make a colourfull mess!
11:01 PM Tom_itx: what charge does the part get? pos or neg?
11:01 PM rue_house: + I think
11:01 PM Tom_itx: does it stick pretty well?
11:01 PM Tom_itx: before cooking...
11:01 PM rue_house: like toner to paper pre-fusor I'd think
11:02 PM rue_house: my desk is becoming an aliexpress-mess
11:03 PM Tom_itx: are you an aliexpress warehouse now?
11:04 PM rue_house: 6 bags of leds, one bag of 120V indicators, a li-ion cell balancer, a bluetooth module, a ESP8266, a 64 led graphic module a camera gimbal controller, 100 LDRs, a bag of rectangular rgb leds, 3.3-5V logic onverters, adc's SSR's.... mosfets.... 10T ports...
11:04 PM rue_house: thats just whats infront of the screen on this window
11:05 PM rue_house: othere there are various bard drive adapters (usb and ide sata) a reprap drive shield, gearmotors...
11:06 PM rue_house: and over there are water level switches, solor panel connectors... usb hubs...
11:06 PM rue_house: !?!!? GAH there is a 5A panel meter here!
11:06 PM rue_house: WTF
11:07 PM rue_house: ER11 collette...
11:07 PM rue_house: synchro pullies...
11:08 PM rue_house: gah, behind the mug is a rol of soic 74HC595...
11:08 PM rue_house: there's an arduino stuck in there...
11:11 PM z64555: its like somebody put them there without you knowing
11:15 PM rue_house: !@#%$!#$ GPS module...
11:15 PM * rue_house keeps putting things in a box
11:20 PM rue_house: haha the bag of lasers!
11:21 PM Tom_itx: don't you need something like a blueray laser before you can actually do damage?
11:21 PM rue_house: it ws for making a bunch of cat toys, I think
11:32 PM rue_house: I need to figure out my UPS
11:32 PM rue_house: it says the battery is gone
11:32 PM rue_house: they are two 35Ah 12V in parallel
11:33 PM rue_house: erp, 48Ah
11:38 PM rue_house: runtime is about 6 hours
11:56 PM The_Jester: hmm?
11:58 PM rue_house: http://ruemohr.org/~ircjunk/not_public_dont_open/ledstrip10cm.STL