Isolation Transformer

Build your own isolation transformer! About a month ago, I realised that I needed an isolation transformer for my electronics lab to test one of my electronics projects.As I searched eBay for an isolation transformer, I quickly discovered that most of them are rather pricey for what they get you, as most of them cannot output a lot of power (which I don't really need, but it's nice to have some headroom). I remembered that I had seen a single isolation transformer somewhere before, which was cheaper and more powerful.It was the isolation transformer one can buy on the highvoltageshop.com website. It has an apparent power rating of 400VA and costs 60€.This is what I was looking for, so instead of buying an overpriced isolation transformer with 1 outlet and 120W I would build my own.Just need to design the housing and wire the thing up. So I got to work, and some time later, I had all the parts necessary to start printing!This project will take about 1kg of filament. I started wi