Update: I have increased the angle of the round hook slightly more so that it clips onto the IKEA wardrobe bar better.

This is a simple hook I designed to fit over the bar in IKEA Pax wardrobes. I designed it to meet that need but it can be used in many more applications including bars up to 25 mm. It doesn't really matter your print settings, as long as the infill and perimeters are sufficient to support a coat or what ever you intend to hang.