(4-traders.com) On December 8, PS 156 Frederick Law Olmsted Green Technology students in Mr. Bella's classes went on a field trip to Vader Systems. Vader Systems is a liquid metal 3D printingcompany owned by a father and son team, Scott and Zach Vader. Students learned about the Vader Systems invention, which is a new way...http://www.4-traders.com/news/Buffalo-Public-Schools-Olmsted-Students-Visit-Vader-Systems-Observe-Liquid-Metal-3D-Printing--25649652/?utm_medium=RSS&utm_content=20171211