The Shortest History of Europe Peter Thiel: Zero to One Give and Take: Why Helping Others Drives Our Success Li Ruihuan 李瑞环, Philosophy: An Art of Living 学哲学，用哲学 Vincent Ruggier, Beyond feelings, A guide to critical thinking Han Feizi 韩非子 Ram Charan etc, The Leadership Pipeline: How to Build the Leadership Powered Company Kerry Ratterson, Crucial … Continue reading My 2017 Reading List
This lens came with Kodak Instamatic 250. It is a very tiny lens. The Reomar means a three-element design. There are only aperture blades.
We are glad to meet so many makers here during these two days. As you can see from the photo, the one made from white HDPE is the prototype of RepRap Version 3.