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.
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
>>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.
>>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).
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?
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... Comment too long. Click here to view the full text.
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... Comment too long. Click here to view the full text.
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
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.
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... Comment too long. Click here to view the full text.
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,... Comment too long. Click here to view the full text.
>>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... Comment too long. Click here to view the full text.
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.
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... Comment too long. Click here to view the full text.
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.
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.
>>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.
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.
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... Comment too long. Click here to view the full text.
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