You sound like a short. SSYS going lower is a great buying opportunity. 3D is a young industry with a lot of upside potential. Buying and selling for short term gains is a fools errand, in my opinion, for this stock.
I just got a new grandson. I'm going to buy some shares for him and put them away for 18 years. This is the future in technology and I figure those shares will cover his college expenses when he goes, to whatever college he wans to go to. The only thing that would limit him is if he didn't qualify academically but I don't think cost will be a hindrance