Hello everyone, I just wanted to introduce myself to the community and apologize in advance for any ignorant or redundant questions that may have already been asked. I took a class on 3D printing recently and hope to further my knowledge of the field. I am now starting with Sketchup and am having trouble using the basic commands. If anyone can point me toward a good video or answer some of my basic questions I would be much obliged. First of all, I am trying to switch my view from feet to inches. (Like I said forgive my ignorance) Second, I am trying to find out what algorithms are available if any. Is there a better program to use? What is the most popular free program available? What would you start with? Thank You, Larry PS: I am sure this is the first of many questions. Thanks in advance.