This is a spring loaded adjustable platform that I made for my K40 laser cutter. These are not detailed plans but I think there is enough here to get someone pointed in the right direction to recreate the concept. The video has the most details. There is a parts list in the linked blog post: http://www.scorchworks.com/Blog/spring-loaded-k40-laser-platform/ https://www.youtube.com/watch?v=7cl0OkYHS5I&t=247s