Close
0%
0%

Meteorite Containment

I built a display/experience box as a gift to my wife for a piece of meteorite that was the main gift.

Similar projects worth following
So a few weeks ago my wife's birthday was coming up and I had not found the perfect gift for her. I was sitting around browsing the internet when it hit me that she would love to have a meteorite. I tracked down a site to buy them and found a reasonably priced one. I realized that while the space rock is cool, it doesn't have a whole lot of charm. I then set out to figure out how to put some excitement into this gift. After a little brainstorming, I came up with the idea of a gift box for it. The meteorite originally impacted in Russia, so I crafted the box around the theme of space age Russia. Knowing my theme I then found a nicely vintage (beat up) sheet metal box on Etsy and ordered it and the meteorite.

Overall it ended up costing around $120, I purchased the meteorite, box, magnet, and aluminum parts. The rest I had laying around.

Video of the box being opened: https://goo.gl/photos/TiSMk6z

Once I had fully thought through the project I ordered both the meteorite and the box.

When everything was ordered, I began to build out the features. Using the box's rough dimensions, Solidworks was used to layout the placement of the rock.

cad screenshot

When the CAD was finished, I started wiring the arduino, motors, and leds. I tested multiple levels of vibrating intensity and finally settled on noticeable but not vibrating across my desk. Instead of using a motor controller, the motors were small enough to be powered directly from the arduino's pwm pins. They used approximately 150ma max so I attached each motor to 3 pwm pins to source the current. In the code I just bundled these three together to allow all of them to update at the same time.

The neopixel ring initializes to purple when turned on and increases brightness from 0 to 50%. It then jumps straight to red because I never got around to smoothing that out. While on it uses the rainbow function set to a slow cycle speed.

In normal operation one haptic motor is constantly on and the other pulses with the neopixel cycles so there is a slight increase in vibration.

I printed the cone and a copy of its trim piece. The aluminum plate is just a weight that I used to give the box some mass. I know I could have used less steel but it was quick and easy. Also in the box is the magnet for the meteorite since its mainly iron. I don't have any photos of bending the rod, I just used my vise and a 1 - 1 scale screen cap to get the bends close and the overall center to center distance right.

Sanded and primed cone and bent rails.

Painting cone and rock pedestal.

double sided tape for the magnet on the underside and the neopixel ring was a press fit thanks to the build lines of the print.

I went with a simple on off switch so there wasn't a need for a contact switch when the lid was opened. I wanted it to be on when I handed it to her all wrapped up. I drilled a small hole and used my nibbler tool to get it rectangular.

I used some scrap wood and double sided tape to give main plate something to sit on. I thought about fastening it down but went with removable so that I could eventually show her the guts on how to work.

Here is the 1/8" walnut plywood that I roughly cutout the shape after using the template of the cone to trace its outline. The cone had an edge to cover the cutout so I knew it didn't have to be perfect. I used some Feed'n'wax to finish the walnut. We had it and I like the smell of the citrus.

Testing all the fits.

(Not shown is the caps I printed to hold the rod in place under the plywood.)

Finished product.

Meteorite_containment_stls.zip

This has all the files for the printed parts. Cone, rail holder, disc, and bottom section.

x-zip-compressed - 752.09 kB - 02/27/2017 at 21:37

Download

meteorite_containment.STEP

Multibody cad file including: box, rock, wood plate, aluminum bars, and rock display part.

step - 1.29 MB - 02/27/2017 at 15:40

Download

stone_containment_display.ino

Simple Arduino code to run the haptic motors and the neopixel ring.

ino - 3.16 kB - 02/27/2017 at 15:40

Download

View all 3 files

View all 13 components

View project log

  • 1

    Buy Meteorite, box, and components. (I had most of mine laying around)

  • 2

    Print stl's

  • 3

    Sand, prime, and paint printed parts for a nice finish.

View all 16 instructions

Enjoy this project?

Share      

Discussions

Tobias Kuhn wrote 03/08/2017 at 20:16 point

Especially like how you themed the box to be an old russian one since the piece of meteorite is from russia. That adds a ton of atmosphere. It's almost as if you've created a small world for a possible story to be told about that meteorite. Very, very cool!

  Are you sure? yes | no

Justin Cole wrote 03/09/2017 at 17:57 point

Thanks!

  Are you sure? yes | no

Shulie Tornel wrote 03/02/2017 at 23:39 point

This is an awesome project. I like. Great job!

  Are you sure? yes | no

Justin Cole wrote 03/03/2017 at 16:59 point

Thanks!

  Are you sure? yes | no

Jason wrote 03/02/2017 at 06:39 point

What is that tool in the picture with the weird punch cut thingy. I have one from an uncle that died and don't know what it's for. I hate throwing away tools and I know I could probably spend an hour of my time looking for the tool but... You already know.

  Are you sure? yes | no

Justin Cole wrote 03/02/2017 at 17:45 point

It is a nibbling tool.  Its for cutting out intricate shapes in sheetmetal.  They're great for little details.

https://www.amazon.com/Nickel-Plated-Nibbling-Parts-Express/dp/B0002KRACO/

  Are you sure? yes | no

Does this project spark your interest?

Become a member to follow this project and never miss any updates