I am trying to make a photon laser and i am having a little trouble. As you can see in the picture my laser doesn't move completely straight
here is the link to my save https://powdertoy.co.uk/Browse/View.html?ID=971783.
I do not have any glass in my laser because it melts right away
Deleting some of the pcln at the top but still making the pscn connect fixes the problem.