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These DIY Toilet Tablets Bust Through Clogged Drains. How to Build a Car Mount for Your Cellphone from Office Supplies. Outdoor. Print Waterproof Plastic Maps. Water is the nemesis of printed paper maps. It creates a pretty rainbow effect as the ink bleeds into the paper. Nice abstract art but, useless for orienteering. I like to print my own maps of an area when we go hiking. A trail map, and maybe a topographical (Topo) map, and a road map for directions to the trail head or pick-up point. The approach used for years, to keep hiking maps from the elements involved storing them in a zip top plastic bag. Also, There is always a chance the maps will get wet every time the bag is opened.

For the most part, this method works, and I will probably continue to carry master maps in this fashion. This is where this Instructables map technique excels... It is important to understand the limitations of this process. Despite these drawbacks, this process will produce a reusable map suitable to tuck in a shirt pocket for reference on the trail in the worst weather, or as a very compact emergency back-up map tucked away in a survival kit. The 5 minute instant hand warmer! Everybody has seen them, the instant hand warmers sold during the winter months for insane prices. However In this instructable Im going to show you an easy way to make an instant handwarmer with things that you proably have liying around your house!

Its a little odd for me to be posting this in the middle of summer, but in hopes of another stay warm contest I would like to see your feed back to help improve this instructable. EDIT: BE SAFE please avoid direct skin contact with the solution! I am by no means a chemist, I do not know how safe this reaction actually is. I've heard several people say several different things. Some people claim this produces hydrochloric acid, but I never got burned from touching it. Whatever is actually happening doesn't matter, please be safe and do not touch the solution or inhale the fumes! Auto. Vehicle Immobilizer. Home-made penetrating oil. This weekend I did a front brake job on my vehicle. After using 2 cans of commercial penetrating oil (lubricant) I still could not remove the rusted brake rotor from the axle spindle. I had tried various additional things like a bigger hammer, heat and rapid cool, it would not come off. Now this is not my idea, it took about 2 hours of internet browsing to find a solution and people who tried it were singing it's praises and now I am a believer also.

One person on another site said there was actually a study comparing this home-made to commercial brands and the home-made required 30% of the torque of commercial brands to loosen rusted bolts. And it is by far cheaper than the commercial brands like WD-?? For example. Here is what you need. I mixed up a batch and let it soak for 15 minutes on the rotor and with a few taps it came right off.

Hopefully this helps someone else out too. Repair threads with a home made tap. On-Board Air Compressor / Welder for vehicles. Tech. Using AC with LEDs (Part 1) The subject transformer was made for many AT&T cordless phones, it is rated for 110v/60Hz and has a 10VAC 500mA output. First, we have to be aware that the 10V rating is known as the RMS voltage, and is the effective average power of the sine-wave. The maximum voltage, which we will subject our LEDs to, is about 1.4 times higher.

We can demonstrate this by hooking up our transformer and taking some measurements. The second image shows 10.8 VAC, which the unloaded output of the transformer. So we should expect a peak voltage of 1.4 x Vrms or 15.3v Next we add a simple diode with a smoothing capacitor and measure the voltage across it: 14.5VDC. This number is about .8v less than our calculations because the diode has a voltage-loss across it of .8V This is one reason we try to avoid diodes because each one inherently loses (as heat) a bit of power - .8v is 25% of the power for a 3.2v LED.

So, we will be using 15.3 volt as the basis our calculations. Using AC with LEDs (Part 2) - and make this handy counter light. The simple and obvious way to get hundreds of volts down to a level to operate a LED at 20mA is to put a resistor in series with the LED. To find out what values we are talking about, we'll use the peak value of 110v, which works out to be 150v for our example (it'll be double for Europeans and Ozzies) 150 / 20mA = 7500-ohms (we should subtract the voltage of the LED from 150v first, but the difference is minor) 7500-ohms? Not too bad... But then let's consider the power rating of this resistor, using the Power rule: P = (V2) / R, we get: 150 * 150 / 7500 = 3 watts, and that's a pretty hefty resistor. Brits with 240v mains will need a 17000-ohm resistor rated for almost 7-watts. Fortunately, by substituting a capacitor for the resistor, we can get the same reduction on voltage without the (or as much) heat. Maglite Hack (ROP MOD) Free/Discount.

Free Electronic Samples. Did you know that some manufactures and suppliers will give away some free samples of their produces to customers and engineers to test them on their projects? They are some rules you should know before you start getting free samples from the companies: You should never ask for more than you need, because you are not going to use the extra parts you are given, that means don't be greedy.Taking free samples from the companies and selling them on places like ebay to make your self an profit is an absolute no-no (unless the company says you can do it).

Those parts are meant to be used for your projects, NOT for resale.Just to be fair to the companies where you got your samples from, buy some of their products. There is another instructable that is similar to this, check it out! There is also a helpful site you should check out to! Also big thanks to Wesley666 for finding many manufactures and suppliers that will give away free samples!

Don't be greedy and try to lie as little as possible. How to Get Student Discounts Forever. The Six Best YouTube URL Tricks. Guante de luminaria LED con tubos de silicona. Bluetooth Glove: Talk to the Hand! Build Your Own Bicycle-Powered Battery for Emergency Power. Hackett's Bike Generator. Furniture. Plank Chair.

"Seat(less)" strap chair. Materials: 2" Webbing: 2-2.5 yards 1/8" or 3/16" Shock cord: 6-8" 2" "Loop Loc": 1 2" Tri-glide: 1 Optional- Small piece of leather or cloth Supplies: Needle and Thread Sewing Machine is nice Something to cut webbing and fabric/leather I used Tubular Nylon Webbing, I would recommend against that, because it is significantly bulkier and heavier. I'd suggest either polypropylene, or if that's not available you could use flat nylon. Really you could use anything.

This could be done with seat belt webbing and a buckle from an old car and look much cooler than mine. You could also use a variety of other options on the buckles, I just wanted something that could be adjusted and this stuff was handy. All of these materials can be had from a variety of retailers, some of my favorites online are: Outdoor Wilderness Fabrics and The Rainshed. I apologize for not having pictures of the whole process. Flat pack for storage Plywood Picnic Table. These picnic tables are each made from a single sheet of plywood, take about 30 minutes to mark out, and about 1 hour to cut out. The sanding and painting is down to the individual, so I'll not quote any times for these two processes, but I have finished mine with a combination of wood preserver on the undersides and gloss paint on the topsides . A short video of me assembling and disassembling one of my picnic tables: You will need a copy of the plans, which you can download and save from here: To mark out the plywood, you'll need: a rule or tape measure, a pencil, a square, and a straight edge of about 4 feet long, or slightly longer; a planed 4 X 1 piece of timber just over 4 feet long, or a length of steel are ideal.

Misc. Practical Necklace. Resealable (Cat Proof) Magnetic Window Insulation Tutorial | Everyday Crafty Goodness. Before I got Elliot the Cat, I used to put up those plastic shrink wrap sheets over my windows (the kind that came with double sided tape). They worked well but I had to redo them every winter and I couldn’t open the windows without ruining the plastic film. I stopped putting up the plastic window insulations after I got Elliot because he tore them to shreds.

This year I came up with a cat proof way to seal in the heat … take a look! (This is not a super detailed tutorial … I’m going to assume that you have general DIY/crafting skills and know how to caulk and paint) 1. Caulk your windows and prepare surface for painting. 2. 3. 4. 5. 6. 7. 8. Now repeat with all the windows in your home. These magnetic window seals are reusable and you can put them up and take them down quickly.

The air between the window and the vinyl is definitely a lot colder than the air an inch away from the vinyl. Stay warm and pay less for heat! Like this: Like Loading... Practical Origami: instant handles for paper bags. How to Mooch Off of Your Friends (Without Them Ever Knowing) Clothing. Bicycle Tube Belt. Jacket mod: stop the zipper from catching the fabric! How to make an iPod hat. Power LED Backpack Lighting system. There have been many LED instructables, so I will mainly focus on what's different about mine and leave you to fill in the details by reading elsewhere. I won't go into calculating resistor values, series vs. parallel, or things like that.

Partially because I did this a while ago and don't remember some of the stuff. First, the rationale: I don't want lights on my bike because they're theft magnets, are more fragile, and more cumbersome. I want a single battery pack that powers a tail light and one or two headlights, and I want to turn it all on or off with one switch. The backpack is the best way to go for me, since I also like to carry my lock in the backpack anyway and always have it with me. I used two Luxeon Rebel Stars (145 lumens @ 700mA) for the headlights, and two Luxeon III red-orange side emitters for the tail light.

I went the resistor route instead of using a buckpuck, which I somewhat regret. Shop. Woodworking. Make Sandpaper Last Longer. Handy tricks to find square. Note* this trick is the only one that uses math and it is only really to explain how it works. So don't be scared off. According to Pythagoras, a right angle triangles sides can be described by the equation a squared + b squared = c squared where c= the hypotenuse (the longest side).By a lucky fluke of math 3 squared + 4 squared just happens to = 5 squared. So all you have to remember is 3,4,5. Simple so far right? If you have something you are working on, for example a wooden frame, cut plywood, a tacked metal structure or even brickwork, and you want to see if it is square, this trick is for you.

Convert a hand-held circular saw into a table saw. Woodworking: Making wood projects without using nails, screws, or glue. Make knock-apart shelves, hinges, latches, books, chairs, cabinets, spice containers, doors, desks, and toolboxes using only wood to hold them together. Almost any wood project can be made without using any metal fasteners or glue. This instructable details the techniques and tools I have successfully used over the years to do this. So, rather than just showing a single project, I will demonstrate a system of fairly simple woodworking joints that you can use to create your own wood projects.

Best of all, all the projects featured here can be entirely made with hand tools (although power tools will make it go faster and easier). Woodworking without metal or glue is of course nothing new. 1-Using these age old techniques, you can save on the cost of fasteners and expensive power tools. 2-Most projects can be easily taken apart for shipping or transport. 3-All-wood joints and fasteners allow for the wood to move with seasonal shrinkage and expansion. Pic 2 is a cabinet of pine and cedar. Easy Single-Handed Concrete Mixing with a Tarpaulin. I needed to mix around 20 cubic feet of concrete for setting some fence posts. After mixing the first four cubic feet with a spade in a wheel barrow I decided I needed an easier solution.

Without access to an electric or petrol concrete mixer mixing concrete by hand can be back-breaking work. Mixing by hand with a spade or shovel in a barrow or on the ground involves physically lifting and turning the sticky mix many times and uses a lot of energy and muscle power. By contrast, this method uses a strong plastic tarpaulin sheet to 'roll' the mix around on the ground.

I should point out that this method of mixing is not my idea and that there are a number of purpose made concrete mixing sheets or bags on the market. DIY spray paint. Making your own custom spray paint is easy and produces some interesting results. Maybe they don't sell the exact colour you're looking for, or you just want to a use for all those old almost-empty cans of paint you have hidden in your garage.

Time to put them to good use and make your own spray paint! Using the spray mechanism found in standard spray cans and some common discarded items you can make your own spray paint. This project uses a bicycle pump to pressurize a small PET pop bottle, and by varying the amount of pressure you pumped into the 'can' and the types of paint added you can produce different effects. The style I got based on the paints I used and the pressure applied is reminiscent of a graffiti mop style. Enough talk, let's make our own spray paint! *Inspiration for this project was drawn from the short movie splay.

How to Make Anything (Using Acrylic and Machine Screws) Well maybe not anything, but what follows is an Instructable about how we at oomlout.com build everything we produce. It is a technique we call Interlocking T-Bolt Construction. It consists of a T-cutout in one piece of acrylic (or any 3 mm stock) and a receptacle in another piece. These pieces can then be bolted together making a very secure 90 degree joint. A deceptively simple technique that has unlimited possibilities. All that is required is an idea, some drawing software, and access to a laser cutter. Lets get started. (shameless plug)to check out our delightfully fun open source products try visiting oomlout.com a note on metric unitsit should be noted that throughout we refer to 3mm thick acrylic.

Make Your Own Chalkboard Paint. Glass File. Food/Drink. DIY MREs.....a tutorial... JOE ON THE GO BRACELETS. Carry any Bottle with a JUG KNOT Handle.