If you can do PowerPoint, you can do 3D design If you're intimidated by the idea of using a 3D design program to create an object for a 3D printer, don't be.

Class 2: Build a 3D Model Plane - Part 2: Tinkercad Tinkercad is the computer aided design program that Conánn uses to create a 3D model version of Harry’s plane.

Most design apps have an object browser window you can use to drag 3-D models of common items (like tables, sofas and bar carts) into your floor plan where you want them to go.