PUPPICAD is described as 'free Computational Design and Engineering Development Environment' and is a CAD Software in the Photos & Graphics category. There are more than 10 alternatives to PUPPICAD for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Android. The best alternative is FreeCAD, which is both free and Open Source. Other great apps like PUPPICAD are SketchUp (Freemium), Autodesk Fusion 360 (Free Personal), OpenSCAD (Free, Open Source) and SOLIDWORKS (Paid).
SketchUp (formerly Google Sketchup) is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, civil and mechanical engineering, film, and video game design—and available in a freeware version, SketchUp Make, and a paid...
SOLIDWORKS is a leading 3D CAD software for design, analysis and product data management. SOLIDWORKS solutions can help boost productivity, harness intelligence, foster innovation, and facilitate collaboration.
Onshape is a professional CAD system – Parts, Assemblies, Drawings – with version control and collaboration built in. Each Onshape plan (Free for STUDENTS, Professional & Enterprise) gives you all of the CAD and data management functionality with no time limit.
Rhino can create, edit, analyze, document, render, animate, and translate NURBS* curves, surfaces, and solids, point clouds, and polygon meshes. There are no limits on complexity, degree, or size beyond those of your hardware.