Introduction: Black Magical Dice
I 'm writting this instructable from France and my English is a little poor...so sorry for my
After seeing a few of electronic dices on differents blogs, I wished to make one smaller than possible, while inserting the logical part.
Just for a personnal challenge. The result measured 18 mm ...
Step 1: Demo
Step 2: The LEDs
Use 7 white LEDs (1.5 mm) and CMS résistors, wired with
a thin copper wire. The platform is printting with PLA filament.
Step 3: Top Part
PLA for the translucide part,
ABS for the half-cube.
After inserting the platform, I flowed few of resin inside.
Step 4: Microcontroller
Welcome dear Attiny !
Arduino programmation on DIY shield.
I resumed a dice GitHub's program, and add a scrolling effect for the LEDs. More attractive.
All the electronics come in the top part.
Step 5: Circuit
Step 6: Arduino Code
Step 7: Bottom Part
ABS for the Half-cube,
PLA for battery plate.
For the power supply, I used a simple coin cell.
Step 8: Trigger
I managed to find THE smaller tilt switch in market (12*3 mm !) …
Before assembly, I also added a micro-switch between the two parts, for the general supply.
Step 9: Assembly
The two parts were glued directly to the extruder outlet.
Step 10: In the Pocket !
All ABS parts have been polished in vats of acetone … and elbow grease ...
There you go !
Step 11: By the Way ...
… your best friend for the production, reading glasses !!!!
Second Prize in the
Pocket Sized Contest