Open maya software, select the cube under the polygon, and the cube model can be pulled out on the grid.

As shown in the figure below, it should be noted that if the check mark in front of interactive creation is removed, clicking on the cube will directly form a cube in the center of the grid. You can use the zoom tool (shortcut key R) to adjust.

Hold down Ctrl+ right mouse button, as shown in the figure below, move the mouse to the Insert Circular Edge tool, create a circular edge on the cube, and create the other three in turn.

Then click the right mouse button, select faces, click one of them, and press shift to select the other three faces.

Hold down the Shift key, click the right mouse button, and then select Extrude Faces.

Click the blue down arrow as shown.

Then squeeze out the upper end of the chair and press the Q key to end the extrusion function.

A simple chair is ready! ! !