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Someone suggested I cosplay Onion-San from Undertale and I concluded it was an utterly ridiculous idea: The outfit would be the largest and crudest thing ever seen at my local convention.

So naturally I accepted the suggestion.
I think that the best way to go about this would be to make some kind of inflatable octopus costume..
But the problem is that to not have the tentacles drag on the ground I would probably need some air escaping, and to have air escaping I'd need to be carrying a battery and an air pump, which sounds impractical.

How realistic is this idea?
31 replies and 3 images submitted. Click here to view.
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to not have the tentacles drag on the ground I would probably need some air escaping, and to have air escaping I'd need to be carrying a battery and an air pump
https://www.youtube.com/watch?v=rHXvMcLrLSY

But seriously, how big are we talking here? There are a handful of electric-blower inflatable costumes out there already. Here's an example of a blower that runs on AAs: http://www.yardinflatables.com/Replacement-Fan-for-Inflatable-Costume_p_2178.html
And the sort of costumes it goes with: http://www.gemmy.com/Airblown_Inflatables_Costumes_s/1848.htm
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>>983954
I'm willing to invest in a good pump since I've been looking at making a furnace, though I don't know how long that would last if I used the biggest battery practical to carry (A car battery for example if that can be somehow used for a pump).

Size of the costume?
As big as is reasonable, it's a fairly large character. Definitely bigger than any of the costumes in that link.
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>>983955
>I'm willing to invest in a good pump since I've been looking at making a furnace
I'm not sure what sort of pumping demands a furnace requires, but these inflatables operate at very low pressure and high volumetric flow rates. May or may not be compatible with your furnace.
>I don't know how long that would last if I used the biggest battery practical to carry (A car battery for example if that can be somehow used for a pump).
Alright, well let's see:
http://www.yardinflatables.com/Gemmy-Replacement-15a-Fan-With-12v15a-Adapter_p_1867.html
At 12v and 1.5a, you could run it off a 15 AH lead acid battery for 10 hours straight; such a battery would weigh about 13 pounds. Alternatively, an equivalent capacity lithium pack would weigh about 5 pounds.

Now, the inflatables this pump is designed to work with don't have external air jets like you're describing (that is what you're describing, correct?). Implementing jets would be a pretty significant risk, since you can't really know how well it'll work until you try it, and once you do try it, patching the jets up again if they don't work will only make the arms heavier and more saggy. If you have a ton of time, I MIGHT consider trying it; otherwise I'd just do my best to build the costume without them and maybe use fine thread or something to suspend the arms (or just pump them up enough and keep them light enough to stand on their own).

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I want to build my own energy storage, did any of you ever made one. Essentially I want to create a battery which I would charge with my PV, and use in peak hours. I am more interested in the process and things that are necessary to look for and problems facing while doing the project.

>buy a powerwall
I want to know how to make one and is it more feasible to build or just buy it.

Questions that I have is, what batteries are more reliable, Zinc-Bromine flow, Li-Ion NCA/FCM, Li-Ion Ferid, or supercapacitators?
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Enjoy your net loss unless you have retard high power costs.
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Slap some solar panels on that bitch, "net loss" my ass
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>>983224
>Enjoy your net loss
please elaborate, how much would I lose

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Lockpicking Set. What should i use and how?
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For all practically picking sets are obsolete, better off drilling, pin snapping or punching out the lock.
>>
Lockpicking is not very difficult. There are Tons of Videos on YouTube

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It is an AR.Drone 1.0 and has never really worked. It can get about a foot off the ground before falling. The blades spin but dont have enough power, I really want to do something cool with it though.
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>>989841
If it can lift a foot then it should at least hover
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Sadly it doesn't hover it just drops after getting that high
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>>989859
Have you tried over volting the motors?

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Hello friends,

I am a STEM coach with a national competition in two weeks. My students (all under 15), have been working on a three-way system for using a hand cranked generator to assist our battery in powering an RC motor.

I don't know that much about circuits and electricity, but in my mind, the picture should have worked. Can someone assist with the basics of electricity or how I need to change this to get both the battery and generator to send power to the motor? No matter what I put where, the battery attempts to power both the battery and the generator...
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How do you become a STEM coach without knowing that a generator is just a motor?
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Oh boy, starting from scratch here. The hand crank (your "generator") is synchronized to the rest of the system. When current flows from the battery to spin the motor, it's also pushing back and causing the generator to act as a motor itself, because at the end of the day the only difference between motor and generator is the intended purpose, the construction is really the same. Assuming the hand crank is commutated (DC and not AC) You should be able to add some diodes to the circuit to keep current from flowing back to the hand crank when it's not being...
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>>989642
Hope this helps

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Quick question, is my toilet float supposed to be sealed onto the tank or is it supposed to come off?
If so then the valve nut is fucked but I can stop the leak by gently holding it in place.

Also, do I buy a seal or use glue

Ty
16 replies and 1 images submitted. Click here to view.
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Bump,

Alright well I checked my other toilet and the float is stuck on so I think I found the culprit

I feel like glue is the bad choice but is there waterproof glue or something?
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>>989610
Replace the seal. It will be cheaper than a tube of glue.
>>
wat? zoom out to give a proper view

the "float" should obviously, float...when it's flushed, the lever pulls the chain, which lifts the flapper, when water lowers it triggers the fill valve to fill the tank, the float then goes up and closes the fill valve, the flapper sits back down and stops water from leaving the tank

if the fill assembly is broken, just replace the whole thing, a kit is <$20

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I really like doing ink work on bones. This isn't on /IC/ because all I want is advice on how to get more bones economically. I walk in the woods pretty often and find things rarely but they're either never complete, or so recent a bleach bath wouldn't clean them.
TL;DR I need bones for cheap, preferably skulls. Advice wanted.
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>>989405
Make friends with hunters, farmers, and butchers.
>>
1.Go to the humane society.
2.Adopt animal with bones of choice
3.Drop in pale of acid
4 Repeat steps 1-3
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>>989412
That'd work to an extent but the possible arrest, small variety of skulls and the price of a powerful enough acid make that plan less than economical or desirable.

My plan is to pick a job core career and be able use that knowledge and experience in a university to learn Mechanical Engineering.
>
Sadly I got two options and I can only pick one. Which is the best to get me started towards ME?(pun):
>
Manufacturing Technology
The Job Corps Manufacturing Technology career training program takes 8 to 12 months to complete and requires training in the following subject areas: • Process control: Process control monitor operations to ensure quality compliance, requiring...
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Afaik Mechinical Engineers are quite valued in Hydrocentrals.
>>
Sr ME student here, I don't know these would actually help as far as making the course work easier, but you will gain context of the ME application. ME is all theoretical calculations. You don't learn how to actually put your ideas into practice, just learn about the theory.

First 2 years is learning Math, Chemistry, Math, Physics, and more Math. Seriously you end up taking a couple math classes whose prerequisite is calc 3.

The rest of the courses are physics classes where you specialize in static mechanical loading conditions, dynamic loading conditions,...
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>>989432
With all this being said, I would pick manufacturing. If you know what a drill press is then there isn't much knowledge to gain from machining. Manufacturing will give you more insight into how materials behave as a result will give you something tangible to help imagine whats happening so you pick your boundary conditions/assumptions correctly. This is what engineers struggle with most, picking proper assumptions (these are also the engineers people complain about that don't have any real world experience...
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sup diy, a car passed over my long board is there a way to fix it?
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>>
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I guess you could reposition it back together and throw on 2 or 3 steel plates that hold it together. Fasten them with screws or nuts and bolts plus loctite. It would likely be use able. But you're not gonna get it to be exactly what it was before.

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I need help with this.
I have this 8 years old desktop computer (¬¬ i cant afford a new one ¬¬) and recently i bought this 18.5 inches LG LED monitor, 19M35A, with a resolution of 1366x768. I have a GeForce 7300GT (i know, i know, its prehistoric). The monitor has a standar VGA connection.
My problem is that the "screen area" for programs is too small. The start menu almost cover the entire screen ¬¬. I work with graphic design, mapping and CAD software so i need more "screen area" for maximizing the software.
My question: Am I doing something...
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you need a better monitor, or more of them
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the fact that the start menu is big is irrelevant. when you maximize an app, it's virtually the same size on any Operating System. you can gain maybe 40 pixels in height if you auto-hide the taskbar.

if you set the resolution above the monitor's native resolution. the monitor may refuse to display anything, or it may compress the image. if it's the latter, it'll look pretty shit, so a new monitor is the best idea.
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>>989161
>work with graphic design

No you don't, otherwise you wouldn't be asking such bollocks, cheapo.

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Hey /diy/ I'm trying to fix my TV (Sony KDL-40EX400) and this part in the picture came off and I'm trying to figure out what it is. Anyone know?
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wow wrong photo
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>>989059
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so I have this bank of maxwell super capacitors which make up a 16v pack for my car. only problem is that connecting and disconnecting it is a bitch. anything that requires battery disconnections like opening the fuel system means balancing the pack with the battery again. how can I limit the current to say, 100A for charging and discharging on the pack? not with a breaker or a fuse.
10 replies and 2 images submitted. Click here to view.
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Buncha MOSFETS/IGBTs
+ Smarts
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>>988724
I was thinking a self resetting breaker and a 5w 20ohm bypass resistor. then just turn the lights on to discharge the capacitor with the battery disconnected. then it will recharge with the bypass resistor until it can close the breaker.
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>>988724
Just wind a 2-3 Ohm resistor from some suitable wire

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Hey /diy/

Some random gave me a "broken" plasma tv today.

TV comes on, lots of snow on the screen.

The Y SUS board has a hiss sound. Under better investigation, has a bad cap.

Think this is my primary problem?

Pic related.
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>>988630
Replace it and find out. We don't have a diagram to know that.
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>>988635

>needing a diagram
the black cap is clearly burned out.
>>
That cap doesn't look good.

You've got most of a Farad of 300v there. Discharging this stuff might be a good idea.

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Hey /DIY/ I have a 8 foot tall server rack with some server gear, but all of my servers run off of 3 prong 220 twist lock plugs(pic related) and I just want to know
A: how feasible would it be to install it myself
B: how much would it cost to hire someone to install it?
I would like to install it myself but I would just like to know what I would need.
I also live in Texas(DFW area) if that helps on where I can get the materials.
15 replies and 1 images submitted. Click here to view.
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>>988418
Do you have basic wiring skills? Then not a problem. Your biggest task is going to be getting a 240V, 30A circuit from your panel to the rack location.

Check with city/county to see if you'll need a permit.
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>>988457
Well I have the breaker I just need to install it and the one I want to get is a 300 amp seeing as I need 8 of these 30 amp plugs.
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>>988484
220V 300A
just ask the maintenance guy of whatever fucking industrial factory you are in to help you out.

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So I'm going to school in September to learn to be a millwright. 2 year program at Mohawk in Hamilton Ontario.

Does anyone have any suggestions for things I should learn on my own or brush up on before school starts?

I'm mostly concerned about math. What kinda math should I know well?

I took grade 11 Advanced functions and got an 85% I've been debating taking grade 11 advanced functions but I'm thinking most of the material won't be applicable and my time would be better spent learning math that I will actually end up using in the...
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bump. Seriously? No millwrights hanging around?
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Went to school for Industrial Maintenance, You will be financial better off going to a tech school for Automation programming. Either way, Jobs are plentiful.
>>
are you the guy from the GTA that was looking to get into the trades?, from a thread a little while back?

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