In tech now, I am just finishing up building my cam, a simple machine that we are making from paper. When you turn a little wheel that goes in the side, a bar turns on the inside and pushes two little poles up out of the top. I have finished putting those in the top and the box has been folded and cut. Now I need to build the inside and put on the wheel so that my cam can work well. I hope that next time I post, I will have finished it!