Every single experiment starts with a plan. Although many experiments have been lead in the "fragmentation lab" of the Earth Sciences Department of LMU Munich, each one has its own specifications, and requires to design and build new pieces.
In our case, we want to study how the quantity of ash particles reklates with number of flashes observed. In this scope, we need several autoclaves (the piece where you put the particles to pressurize them) with various capacities. So, we designed 3 experimental setups, each of them mad of 6 different pieces, with a special care to the sealing and the resistance of the different pieces to high pressure.
Drawings were then brought to our workshop, at the basement of our building, where pieces have been made in a few weeks! What is the next step? Test that the whole setup is working fine, and then start the experiments!