3D Systems is reaching its bottom soon, maybe within two weeks. 50 Day MA about to cross 100 Day MA signaling we are coming into a landing at the bottom resistance price at 50. Once MACD goes into positive slope and enters the window between 50.7 and 49.5 we have a BUY in our hands. SELL at 77 before the price reaches the upper resistance set in mid Feb2014 at around 80 for a +50% profit.