Redstone elevator and flying machine

A Redstone elevator and flying machine that i made myself without tutorial.
its basically a normal flying machine but instead of sticky piston+normal piston its sticky piston+sticky piston,
and for the elevator its the same thing but flipped by 90 degrees.
the launching button just makes a sticky piston pulse a block in front of the observer and that also makes the obsidian in-front of the slime block.
the button to press if flying machine is at the other side is just a connection to the launching piston of the other side.