LM2596 housing

I've downloaded a handful of cases, however, none of them fit properly. most likely this is due to discrepancies in different manufactures so to help reduce that, this is the one I bought. https://www.amazon.com/gp/product/B096B42DXJ For this I used m3 heat inserts and m3x15mm screws however mine was pretty friction fit however cannot be guaranteed as its somewhat printer dependent