This is a display stand I designed to easily display a scale model of the Lycoming O-360 aircraft engine created by MOTABAS on Cults3d.  The paid model doesn't come with a display stand so I made my own.

It is designed to support the assembled engine at three points.  See second picture for the intended support points:  Two supports touch the crank case, and the third (the shorter one) touches the front side of the oil pan where the exhaust manifold splits apart.