recently, i have decided to produce a large tutorial collection to help noobs get accustomed with both basic and advanced functions, tools, and procedures for creating models in Sketchup. this decision was based on my difficulty learning sketchup, which aggrevated me because i couldn't seem to find anywhere that would give me the help i needed. Therefore, i am collecting a massive amount of tutorials to place in one, large collection, which will cover an ever increasing array of topics. if u wan't to submit a tutorial into one of my collections,simply write my name, dark_eclipse, into the tags area. for this collection, specifically, ALL MODELS MUST USE EITHER SANDBOX OR FROM CONTOURS METHODS. Thank you!