One of my coolest possessions is my Mini Museum. To quote its creator, Hans Fex: it is an amazing portable museum that contains a variety of specimens from Earth and beyond.
Ever since I received the museum I wanted to have a good way to put it on display. I figured a good way of doing this was hanging the Mini Museum on an empty wall and illuminating the specimens using LEDs. A benefit of hanging the museum on a wall is that I do not have to worry about it being knocked over and scratched, which was a concern when I had the museum temporarily placed on my desk.
To hang the Mini Museum on the wall I designed a 3D printable display case. The display case uses two warm white LED strips to light up the Mini Museum, one on each side. The LEDs can be set to always on, always off, or triggered by a HC-SR04 ultrasonic sensor that detects whether a person is standing in front of the display. The display case is programmed so that when someone walks past the Mini Museum it does not light up, but when that person stops in front of (and looks at) the museum the LEDs do turn on.
To help you hang your Mini Museum on the wall, I have described below how to build the 3D printed display case, as well as the materials and tools that are required for the project.
- A Mini Museum
- 4x M3x16mm bolt
- 1x Front
- 1x Back
- 1x Back Insert
The links to the 3D printable .STL files can be found in the Files & Print Settings section below.
- 2x 12 cm / ~5 inch warm white LED strip
- 1x HC-SR04 Ultrasonic Sensor
- 1x DigiSpark Development Board
- 1x 1 uF capacitor
- 1x 1 kΩ resistor
- 1x 2N3904 NPN transistor
- 1x SPDT On/Off/On toggle switch
- 1x Female DC 5.5/2.1 power connector (DC-017)
- 1x 12v 1A power supply (with corresponding male connector)
Files & Print Settings
The .STL files for 3D printing as well as the source code for the Digispark are available for download on Thingiverse.
I printed the parts with 2 shells, 15% infill. The back needs to be printed with support.
The Wall Mount
At this point the work on the body of the display case is finished. In part 2 of this project I continue this build with the electronics of the display case.