How to build the diagonal pizza trap.

This trap was not designed by me, it was made by a youtuber called Shadow and here is a link to his video    • Why THIS is the Best Trap in Minecraft   I made a tutorial on this because in his video its really hard to follow along and know what he is doing in it especially if you are new to redstone so I decided to make this to help out new people :) Also Judelow if you see this I am so sorry for greifing you're trap that one time you where streaming in hoplite my IGN is Vort3xify I felt so bad after.