This is a encasement for the BI1 (body interaction 1), a simple electronic device which analyses movements (e.g. gestures) and reacts with vibration pattern. It is build on the Arduino platform, communicates wireless with other BI1 and comes with a LiPo battery. The application for this encasement is a vibrator (massage wand). We have started a Indiegogo crowdfunding campaign. Get your board and encasement now: http://igg.me/p/body-interaction-1-bi1/x/3080342 The cap is fastened with two tiny M3 screws. I have printed one encasement (white/grey) with the daVinci printer, the other (red and white) were printed by printing service companies. All three are functional. Links : http://www.bodyinteraction.com  http://youtu.be/yKO2bBoCCy4