Reduce Electricity Cost?

Does the electricity meter count power used if I only used the live wire and channeled it to an independent earth pit? In other words, I do not complete the cycle with the grid? Power comes in through the live, through meter then to earth?

Question by nabulomi   |  last reply


How much would a 3 foot .25 inch steel rod cost? Answered

How much would something like that cost and where would be the best place to buy one?

Question by Killer~SafeCracker   |  last reply


Average MIG welding costs?

I was interested in welding, and I've heard that MIG is a good type to start with. My question is, what are the average costs to you good citizens of Instructables with moderate use/ what were your starting costs?

Question by The Dark Lord   |  last reply


Low Cost DC motor Controler?

I want to power a 90 Volt, 5amp Perment Brush type DC Gear Motor. The, "Variable speed controller", needs to be able to use 115v AC or 115v DC input power, which is selectable by the operator. I have used a Staco variable tranformer which uses 115v AC input and rectified the output to drive the motor. But also need the 115v DC input option.

Question by Realdann   |  last reply


can someone find prices of screw jacks/ miniture acutators?

just need rough estimated prices and power output its for a  presentation at college. I need to gather a rough estimate of mutiple parts and materials and im struggaling finding prices for them. thanks :)

Question by dubpunkdub   |  last reply



How much is liquid solder flux at menards?

I like to solder things and stuff. I get frustrated when the solder just wont stay or go where I want to. Today I was working on a robot for science olympiad at school and my teacher showed me how to use liquid solder flux. I was amazed by how well it worked. I asked him where he got it and he said menards but he didnt remember how much it cost. Does any one know. I cant drive yet and my family is sick except me so asking a friends mom to give me a ride to menards would be kind of weird. Do you know how much it cost at other stores? I could only find the paste on radioshacks website. It didnt seem to work as well when I used it. 

Question by TOCO   |  last reply


need to design a low-cost SMS-based alarm with a very long life battery.

Extremely low-cost SMS-based alarm, that will send a message to a number when the alarm is activated. must be small (10x50x40 cm) and have a long life battery and is to be deployed over a wide geographical area, all within GSM reception

Question by lukassie   |  last reply


LOW COST HIGH VOLTAGE ELECTRONICS AVAILABLE FOR $3 US SHORT TIME

There are soo many who ask for High Voltage generation. Here is a good deal for as long as the stock is available. http://www.mpja.com/email/11-01-11.asp?r=214011&s;=14 A 5 VDC  input  and 400 VAC output for $3.  .  .  .  .  .    A

Topic by iceng 


What's a good cost effective way to make a large plastic body/case?

I'm working on a kitchen countertop type of device that would be similar in size and appearance of a large coffee maker. I plan on making around 50 of these for an initial run. Cost is a factor to prove that a profit could be made while not outsourcing the work involved. My goal is to keep this cost below $30 each part, but could go as high as $50. The body will need to be hollow, and has initial dimensions of 18"x12"x8". It does not need to be one piece, several pieces that can be assembled is actually ideal. Here are a few options that I have looked at as well as my concerns... -Injection molding- I worry about the setup costs for equipment let alone the space needed. -Resin casting - I worry about it being too brittle and effectively making workable molds for assembleable parts. -Resin coated foam - I worry about the look of quality as well as the cost of foam. -Vacuum forming - My main concern is the cost of sheet material. I'd appreciate any input, whether it is to add more ideas or to address concerns that I have.

Question by jpettit   |  last reply


where can one buy oogoo from and how much does it cost?

One of the articles - "how to make handles for old screwdrivers" called for the use of oogoo

Question by noormahomed   |  last reply


How would I make a coat with armored plates on/in it. At a very low cost?

I happen to be one of those people who loves making things with my own hands rather than buy it, and who possibly has too much free time... Anyway, I am currently designing an armored coat, but lack the resources to use something like Cut Tex Pro fabric or something else ridiculously expensive. Because of this, I have resorted to using thin fiberglass plates in the coat; although due to my lack of knowledge on embedding armored plates into clothes, and on what sizes and shapes each plate should have varying on each choice, (knowledge is 99% experience, and 1% brain power), I'm not sure what would be more effective, external or internal plates. I would appreciate all opinions - (Trolls excluded) - on which choice would be most efficient, simple, or even just low cost; suggestions for alternative materials that offer a possibility of working better would also be welcome.  Thanks

Question by jgdabble   |  last reply


Wheel chair project

What are the parts required to make a wheel chair project?what is the total cost of the parts?

Question by kota saketh   |  last reply


second cylinder stopped compressing

I have a Ford Mustang 2005 second cylinder stopped compressing how much it will cost

Question by NaviS3   |  last reply



BIKE REPAIR STAND: How about a low cost, easy to build, bike repair/cleaning stand?

It should hold the bike off the ground and tight so it does not move around while you work on it.  I was thinking of using half inch pipe stuck in a five gal bucket filled with cement, but I could not come up with a good clamp idea.  BTW, the clamp should not mar the paint job.

Question by yogoombah   |  last reply


hybrid go kart?

We r making hybrid go kart with 1 hp motor for hybrid go kart challenge which battery pack will be good choice 1.Lead acid 2.Ni metal hydride because of cost constraint we can't use li ion so if u know any other good batteries with low cost plz tell info: 48v 150 amps initial current energy efficient

Question by vpsingh92   |  last reply


How build a cost-effective device that automatically clears exhaust fumes out my garage?

Soon I'm going to move into a building which shares living quarters with a garage. I'd like to rig up some sort of relay-triggering device that opens a nicely sealed set of vents (one intake, one output) and activates a fan exhausting garage air  - one that activates the minute I open the garage door, and then continues exhausting fumes for a few minutes after I drive the car away (and close the garage door). After those couple of minutes, the fan would stop, and the vents seal shut Due to the "lay of the land" (garage right off a busy road, with very short hidden driveway) I will be backing the car in, so exhaust gases will be concentrated at the back of the garage (close to living areas) - rather than near the open garage door. And as my car has a turbocharger, I often need to let it idle for a minute or two ( to let the turbo cool down) before turning it off to park. So it would be most useful to be expelling those exhaust fumes out of the garage! The question is - what's really the most simple and cost-effective platform for this kind of a system? Could a 555 timer, a few discrete components and some relays do the job elegantly? Or am I better off just diving into Arduino-Land?? Any related ideas (solenoid-closed vents, efficient fans, ducting through walls, etc ) that are especially thrifty - would also be greatly appreciated!!!

Question by rockandroller   |  last reply



Is it cheaper to pump water or buy it?

Considering a height difference of say about 15 feet would it likely be cheaper to pump water from a lower elevation (such as a creek or pond) to a higher elevation or would it be cheaper to fill the reservoir with city water which is already under pressure. This is all just theoretical but would the cost of running the pump be more or less than the cost of buying the water?  Of course other factors would play in such as the city water being bacteria and sediment free (in theory) but im ignoring them for now.  Any insight would be appreciated since I have no idea of relative costs for either right now.? Edit: Maybe I made it seem a bit too formal but I am just talking about putting a pump in a lake or creek with a garden hose attached vs turning on a garden hose connected to city water.  Im not trucking it in or anything.  I dont have specifics as said but if the answer depends on specifics then that gives me enough of an answer to know that i will need more research when ready and that its not easily one or the other.  Thanks.

Question by kinderdm   |  last reply


Overpriced Stuff: Electric Motor Speed Controllers

Commercially, speed controllers for electric motors (electric car size) are very expensive, like on here.That page has a controller capable of 144v at 550a peak (about 90 horsepower peak) for $1250. I just designed a speed controller with parts off of digikey.com for about $200 that could handle 144v at 690a continuous so it could probably get over 180 horsepower peak.All things considered, their's costs over 10 times as much per amount of power.This seems like a BIG markup. I can understand shipping costs, labor costs, etcetera, but something seems a little messed up here.NOTEI am not sure that the design is quite right, and haven't done it myself, so criticism is good.

Topic by yourcat   |  last reply


1/24th scale tank treads

I want to know how to make my own 1/24th scale tank treads? at low cost to me.

Question by tdclmh2   |  last reply


Solar panel: Shattered glass - epoxy or replace the glass? Answered

Hello, I see many projects/videos about making solar panels or repairing shattered glass on solar panel with things like epoxy. But I have found nothing about chaging the glass of the solar panel. The cost of epoxy  for a repair seems quite high (30$+?) and maybe not always suited long term. Assuming the cost of the glass wasnt much higher, is there something practical stoping a repair by chaging the glass rather than using epoxy? Thank you!

Question by RincewindT   |  last reply


DIY DNA profiling

I was curious if there is anyway to profile dna yourself.  I understand it may be challenging but are there any low cost alternatives to the PCR method or quicker than the RFLP method?

Topic by azice   |  last reply


how do i separate, recycle, the silver from copper tinned wire and is it cost effective - chemical or smelting ?

I have 25,000 feet of military spec marine grade 26 awg high strand count 3 conductor helix braided shielded in plastic sheathing. I have no idea how many ounces of silver are involved but can guess at the copper, which is worth much more un-tinned and brite. some have suggested crushing it to remove the plastic as the 3 conductors are also sheathed in plastic but there may be enough of this for me to tool up to do it all chemically or burning it using the right filtration?? thanks,

Question by Steward in Good Fealty   |  last reply


how do i embed an object in a large transparent block (think jeff koons or damien hirst)?

Hi there, if i want to embed an object (say a pair of sneakers or a football) in a square transparent block using a material that i could pour into a mold as a liquid and which would cure relatively slowly as to let a bottom layer begin to dry as one puts the object in so that it won't sink to the bottom, what would be the best option for doing this AND the most cost effective if i wanted to do larger projects? originally, i assumed that fiberglass resin was the only option, but it's VERY expensive ($60+ per cubic foot... or so) and i'm hoping that there may be a more cost effective, easy to use material. thanks in advance, Jeremiah

Question by jeremiah1223   |  last reply


is there any practical point in getting the dremel 400 over the dremel 300?

Im looking for a new dremel and i am undecided between the 400 and the 300. while the latter is cheaper, are there any good reasons to get the 400 over the 300 such that the added cost will pay for itself in functionality/durability? cheers

Question by poiki   |  last reply


AC adapter reuse-Charge My 18V. Dewalt Battery??

I've lost My Stock DEWALT Charger . I have Several 18 volt A.C. adapters - Is There not A way to Make  a charger out of one of The adapters?

Question by Psyber-kenetic Lucidity   |  last reply


how do make a go kart and how long will it take and what will I need please help? Answered

How do you make a go kart and how long will it take the cost and what ill need who ever awnsers thank you so much 

Question by rhys25690811234   |  last reply


Where can I get large( diamter larger than 3 feet) plastic pipe and how much would it cost?

I need some larger plastic pipe that I can use for a tunnel. I am looking for something that is larger than 3 feet wide becuase I want to use it for a tunnel. Preferably it is not to expensive.

Question by workinprogress37   |  last reply


How do I replace worn out front struts on a 98 Honda Accord; and how much would it cost me? Answered

How do I replace worn out front MacPherson struts on a 98 Honda Accord; and how much would it cost me?Note; it seems I can use pre-assembled Monroe "Quick Struts"; would I still need the spring clamps if I us a quick-strut? I've heard this could be potentially dangerous; how would I minimize danger? Other things; would I need to bleed the brakes after? ( I assume yes) What's the basic idea behind that? I would need an alignment I'm going to assume, from what I hear, I can't do that at home - but can I get it "semi-right" to drive it to the shop? I have most of the tools available aside from a torque wrench. If I get a Monroe quick-strut, what other things would I replace? Any bushings/bearings/stuff that would be good to change at the same time? Personal experience, Changing oil/fixing radiator leaks/doing basic maintenance on cars (brake pads/rotors, spark plugs/ distributor cap etc) The easy stuff basically. Honda quoted me at 800, and independent quoted me at 600. I can buy those quick-struts for 180 a pop.

Question by DELETED_Phill   |  last reply


how to remove old paints to the wood, which is thick. i am unable to spend more money? Answered

We painted to the doors continues for more than 30 years every year. the door is 100 years old with good design so please give me the solution with less cost.

Question by manikanta0562   |  last reply


I'm making a pnuematic potato cannon and I need help on what is the best piston release method?

I know of two ways, but am looking for advice from veterans. I am not a novice at this, and cost is not a problem, so give all and any ideas. (illogical ones are accepted!)

Question by caspar97   |  last reply


Recover heat from freezer condenser?

Anybody ever tried to use a freezer or fridge condenser to preheat water (before sending it to water heater)? I'm thinking about an easy setup; a coil of copper tubing fastened to the condenser. I know It seems insignificant, but given the low cost of the setup, i think it could be worth it.

Question by jemor143   |  last reply


3D Printing - Metal

Is it true that there are 3d printers that print in metal? If so what kind of 3D Printer is this and about how much do they cost? Oh also how exactly does that work when 3D Printing is supposed to be additive manufacturing and metal isnt a liquid or even flexible at solid states?

Topic by acadena2   |  last reply


Printing 3d models/ prototypes affordably? Is there a cheap place to get my cad file printed by a 3d printer? Answered

So I am working on a futuristic design of a ferris wheel and am having trouble finding a company or manufacturer that could make an affordable prototype. My 3d model has the dimensions 100mm x 100mm x 75mm max size with the volume of 5 cubic inches. The school I go to does not have a 3d printer but I was fortunate to find one of my teachers came from a school who had one and she was going to try and see if they would print my model for me. It's been over a month since I heard of that option and I am assuming that option is no longer on the table. So, I am looking for an affordable option to print my 3d model. My budget is under $50. Had I been able to use the school's 3d printer it would have only cost me $4 per cubic inch, resulting in $20 cost to make. Doing a google search for 3d prototyping companies I found a few commercial options yet the quotes end up costing around $375 - $725. I know the Makerbot is one of the most affordable 3d printers out there yet $1000 is not in my price rang.

Question by mcguyverzboss   |  last reply


"Best" 3D Printer on the market today

Many of the 3D Printer reviews are a more than a year old that I have found. So the question is what is the "best" 3D printer and/or Printer Kit for someone who wants to start 3D printing. Cost is an obvious factor, but quality to finished product and simplicity for a beginner are also important. 

Topic by cadams15   |  last reply


hey! i would love to modify my hand truck with a motor

Hey! i would love to modify my hand truck with a motor to help move things over long distances something similar to this without costing so much http://handtrucks2go.com/Electric-Powered-Hand-Truck.html?

Question by gruda   |  last reply


Project suggestions for the summer holidays; lots of time, not a lot of money?

I have a reasonable variety of woodworking tools, metalworking tools including a lathe. I'm 18 and consider myself pretty good at practical things, I'm looking for something labour-intensive that doesn't cost very much and I'd like to have something interesting at the end of it. Any ideas are welcome :)

Question by frazzlemydrive   |  last reply


How to make cornstarch packing peanuts?

I need the cornstarch packing peanuts so that when the bead is done baking, the cornstarch will melt, leaving me with a filigree style bead.  I am using polymer clay to make the bead.  I don't want to deal with the mess of melting beeswax in my oven, plus the cost.

Question by alison528 


line-x price? Answered

I had an idea for a house building process involving the use of line-x, however, i cannot find it's price anywhere, so i would like to know how much does it cost to apply a layer of it on a wall per m2. Also, does it take any special equipment to apply it or just any spray paint gun?

Question by tgferreira184   |  last reply


The Large Hadron Collider: is it worth it?

The Large Hadron Collider(LHC) is to be unveiled this year. It is designed to solve the much talked about energy crisis, and hopes to do so, but can it be worth all of it? From Wikipedia- (On October 25, 2005, a technician, José Pereira Lages, was killed in the LHC tunnel when a crane load was accidentally dropped. The construction of LHC was approved in 1995 with a budget of 2.6 billion Swiss francs, with another 210 millionfrancs (€140 M) towards the cost of the experiments. However, cost over-runs, estimated in a major review in 2001 at around 480 million francs (€300 M) for the accelerator, and 50 million francs (€30 M) for the experiments, along with a reduction in CERN's budget, pushed the completion date from 2005 to April 2007.[14] 180 million francs (€120 M) of the cost increase have been due to the superconducting magnets. There were also engineering difficulties encountered while building the underground cavern for the Compact Muon Solenoid. In part this was due to faulty parts lent to CERN by fellow laboratories Argonne National Laboratory or Fermilab (home to the Tevatron, the world's largest particle accelerator until CERN finishes the Large Hadron Collider). [15] The total cost of the project is anticipated to be between US$5 and US$10 billion.[2] On March 27, 2007, there was an incident during a pressure test involving one of the LHC's inner triplet magnet assemblies provided by Fermilab and KEK. No people were injured, but a cryogenic magnet support broke. Fermilab director Pier Oddone stated 'In this case we are dumbfounded that we missed some very simple balance of forces.' This fault had been present in the original design, and remained during four engineering reviews over the following years.[41] Analysis revealed that its design, made as thin as possible for better insulation, was not strong enough to withstand the forces generated during pressure testing. Details are available in a statement from Fermilab, with which CERN is in agreement.[42][43])

Topic by BkrevWlevqe   |  last reply


A/C-Broke for Aerostar. Need ideas for simple/inexpensive roof replacement?

How to get the van interior cooled without spending too much. Considering cheap 110 volt honda generator, can use for other things. plug in small room A/C or roof venting unit?  Buy used would keep costs down. Watcha think? goguddy

Question by goguddy   |  last reply


How do I sell woodworking projects?

I'm about to enter a woodworking program at Hennepin tech in Minnesota and you are allowed to buy the cabinet, table, or whatever that you have been required to complete for the class at the cost of the materials you used. How can I sell these things for a profit to supplement my income? Will I have to start my own small business?

Question by MatthewB78   |  last reply


where can i find 55 gallon steel drums? Answered

i need one for projects like a charcoal burner or just storage. but they cost about 60$ new. i always see them as trash cans in parks in such so i guess their cheap use, but where do you find them used?

Question by finbar galdeep   |  last reply


I need to remove spray paint from steel. Do you have any recommendations for me? Answered

I have an old steel toolbox that's been spray painted. I'd like to strip the paint off in the most efficient (and cost-effective) way possible. What say you, Instructables' Smart People?

Question by bajablue   |  last reply


What are the cheaper possible methods of compressing a gas without using reciprocating or rotary compressor?

We are working on a project to compress a producer gas(N2: 50.9%, CO: 27.0%, H2: 14.0%, CO2: 4.5%, CH4: 3.0%, O2: 0.6%). It is just like a bio-gas. It can be used as a cooking gas or for any heating purpose. Any cheaper methods to compress such gas costing low price?

Question by akshay.tale   |  last reply


Would it be possible to mix titanium and steel? Answered

Theoretically, could it be possible to mix titanium and steel and get the best of both? Let’s just assume that cost and difficulty are not an issue? Imagine the possible uses for a metal that was non-magnetic, non-conductive, corrosion resistant, and with a great strength to weight ratio, while being as hard as tempered steel. For one thing, it make a fantistic knife. So, the question is; Would it be possible.

Question by black hole   |  last reply


Electoplating wood. CHEMISTRY QUESTIONS!

Hello guys, Thanks alot for reading. I don't know much about chemistry outside of my one high school class. We electroplated a penny. I have a 1.5ish square-foot piece of wood, and i am wanting to CHROME IT.... chrome paint kits cost hundreds of dollars, and i've before seen chrome-plated wood.. and i want to replicate the results. [img]http://www.eastcoastpowdercoating.com/liquid%20chrome%20guitar.jpg[/img]I'm looking for a cost effective alternative to expensive chrome kits (+300 dollars for a pint)In theory.... my method would involve somehow plating the guitar with some sort of metallic based paint, then submerging it in a chrome bath. [b]IS THIS POSSIBLE??[/b]Is there a metal chemical that can somehow be applied evenly to the entire surface of the wood? (i.e. paint?)What, and how much of the specific chemicals do i need, and where can i find them?I really want this to be mirrored. Thanks so much for your responses to my problem:P

Topic by punx777 


cheap aluminium for cooling transistors and such? Answered

I just saw an aluminium stair (costing bout €30~€40) and wondered why i couldnt cut it up, and use it to create a heatsink for transistors and stuff like that. would this make any difference with comercial heatsinks? only in terms of heat-conduction i know shape is a factor, but i'd like not to get into that, i could bend the cut-up stair or something

Question by godofal   |  last reply