How to get into the Patterned Factory in Control Resonant

The Patterned Factory in Control Resonant is seemingly sealed off when you approach it for the first time, with enemies guarding its exterior and heat bursting from the pipes if you're not careful. It's an area where it's dangerous simply to be standing, but it's easy to find yourself patrolling the exterior trying to find the entrance to no avail. Fortunately, I've managed to find my way in, and I can show you how to do the same. Keep in mind though that the Patterned Factory is no joke, and if