Peter Wasch had long been interested in model building, but only the theoretical side. However, in February 2013, the 30-year-old firefighter decided to take the plunge and build a model of ALF, true to the original and fully operational. At that time, Wasch had no idea what he was getting into. The easiest part was building the basic structure out of polystyrene because it is not difficult to work with. After about two months, he had completed the shell; however, this is where the project began to get tricky.
As Wasch quickly discovered, the main problem was the turbines. The original ALF is equipped with two airplane turbines that enable up to 8,000 liters of water per minute to be finely sprayed over a distance of up to 250 meters. Wasch built two electro turbines into his ALF at a scale of 1:15. Designing water-resistant electronics, the pumps and the suspension also required great ingenuity – he took apart a blood pressure measuring device and used the pump from it in his model.