Build a lightwieght brake tool

OK I have seen alot of angle metal based brakes, but this is the first wooden one.  I am pretty impressed with it to bend lightwieght metal.  And its size is perfect for large window trim.

http://www.instructables.com/id/Window-Trim-Brake-Bending-Tool/?ALLSTEPS

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Another Hydrogen Generator build

This one is out of PVC pipe and looks like a rocket.  The plates build the author does is interesting..

http://www.instructables.com/id/Rocket-Ship-Hydrogen-Generator/?ALLSTEPS

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Build a water pump that uses cordless drill batteries

Nice build.  At first I assumed this was built with 3D printed parts.  Nope, PVC pipe instead.  Looks really nice.

http://www.instructables.com/id/DIY-Cordless-Water-Pump/?ALLSTEPS

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Build a simple Laser trip alarm

Pretty simple trip alarm.  Could be extended out to cover more than the “doll” size.

http://www.instructables.com/id/Laser-Security-System-3/?ALLSTEPS

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Simplest build for a blacksmith furnace yet

This has to be one of the simplest ones yet.  Definately easier to make than some of the other builds I have seen over time.

http://www.instructables.com/id/DIY-Metal-Melting-Furnace/?ALLSTEPS

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Make a fog horn

The demo of this sounds pretty loud.  Looks like an easy build too.

http://www.instructables.com/id/Easy-PVC-Fog-Horn/

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Take a bunch of hacksaw blades to make a simple Rasp

Interesting idea, I agree with the comments and maybe just bolting a bunch of the blades together to do this instead of cutting them in half and then gluing them.

http://www.instructables.com/id/Gang-Saw-Thin-Rasp/?ALLSTEPS

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Another bubble reciept

This one is a cup of water, 1.5 tablespoons of sugar, and 5-8 ml of shampoo.

http://www.instructables.com/id/Big-Bubble-Solution-in-Home-How-to-Make-a-Bubble-S/

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Convert a cheap digital rain monitor into a high end one

The author took a cheap rain measurer and modified it so an arduino could read the data and send it to a controller.  Of course I don’t think I would be lucky enough to find one of these for 43 cents like the author did.

http://www.instructables.com/id/Digital-Rain-Fall-Monitor/?ALLSTEPS

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Another knit tube, but with holes for easier access

OK I have posted about these before, but I like this one since each slot has a “hole” that allows the needle to pull the yarn out and over with.  Good idea.

http://www.instructables.com/id/Knitting-With-a-Piece-of-Plastic-Pipe/?ALLSTEPS

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