@pegosh2 I'll do. But please use the Wiki and add you entry to the queue, I check every creation for edits every day. And you should seriously read the rules first.
@JoJoBond I didn't get that you were refering to the beam. I thought it only meant you were not to place the laser past the peak y-point of the obstacle. But, I edited it again to better fit the rules.
Edit: Maybe add a yellow wall box outline for the area you'd like it to be in.