Print out a glass bottle cutter

I actually have one of these from a kickstarter project from years ago. Its a nice build but I think you need a good sized 3D printer to print this one out (over 8 inch bed).

https://www.instructables.com/id/3D-Printed-Glass-Bottle-Cutting-Tool/

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Make a mini volt meter

The meter and display is a single unit you can get off from ebay for a buck. Basically the author puts this on top of a 9 volt battery, adds some leeds, and shrink wraps the whole thing. Oh and has a switch for on/off.

https://www.instructables.com/id/Pocket-Volt-Meter/

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Make your own escape ladder

Nice build, me, well I think I would buy one first.

https://www.instructables.com/id/26-Fire-Ladder/

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Cool homemade planer

Nice build…would I do it? No, I would buy one off a yardsale. This looks really nice but alot of work to make.

https://www.instructables.com/id/Make-Your-Own-cheap-and-Easy-Hand-Planer/

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Turning your Micro:bit into a compass

Someone already wrote the code for you, so you just need a nice cover and your Micro:bit can be used as a compass.

https://www.instructables.com/id/Microbit-Compass/

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Cool mini 3D printed CNC laser engraver

Nice build, I like the re-use of the CD-ROM motors, but I am not so sure about using lasers. Drill motors I can handle but lasers make me a bit nervous. Either way the STL files for the build are available so you could convert this build into a non laser version.

https://www.instructables.com/id/DIY-Mini-CNC-Laser-Engraver/

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Interesting router bit tray

Pretty interesting build. I like it cause its an easy and quick build. The slots are a bit smaller than the shaft of the bits, but the intersection is perfect fit.

https://www.instructables.com/id/Wicked-Fast-Dremel-Router-Bit-Organizers-Using-Dad/

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Turning a PC fan into a personal fan

I have done a few builds like this, just not as fancy.

https://www.instructables.com/id/Reclaimed-Desk-Fan/

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Interesting CNC build

Author uses 3D printer to make the ends for the frame. Nice build overall. Not sure if I would go with this over MP CNC. Bit pricey of a build with some of the parts he uses.

https://www.instructables.com/id/DIY-3D-Printed-Dremel-CNC/

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Make your own 3D scanner

Interesting build, it moves the object around and you use your phone’s camera to scan in the images. Uses an ATiny to controll the thing.

https://www.openscan.eu/?lang=en

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