After about a month, I finished this project and I am really happy how it turned out. I spent allot of time modeling everything in Blender.
My new gadget is easy to program and satisfying to watch it work. This was a really inexpensive project, as many of the parts were salvaged.
The video features Blender animation, 3D printing, board fabrication, project assembly & final demonstration. Hope you like it.
https://www.youtube.com/watch?v=yygYNKrytog&list=PLn5mGAed9x54EjulLXxyrC_TQ1Mvl9ypK
I also salvaged a schmitt trigger used in this project(for the button to trigger the arduino interrupt)...here is the video of that...
https://www.youtube.com/watch?v=D4OX80k2wFA&list=PLn5mGAed9x54EjulLXxyrC_TQ1Mvl9ypK