You can learn in this tutorial how to design a Spring in Auto CAD.
In this tutorial you will learn some important command like helix, circle, mirror, sweep etc.
Auto CAD Tutorial # Spring Design
Auto CAD Tutorial # Screw Design
https://youtu.be/HTsXuR81EuQ ----Solidworks Tutorial # Bowl Design
https://youtu.be/yx1QI2Gugn4 ----Solidworks Tutorial # Ceiling Fan 2D Sketch
https://youtu.be/3bcwtM0b0Ig ----Auto CAD Tutorial # Flat Screw Driver Design
https://youtu.be/XRtYxznL3SQ ----Solidworks Tutorial # Spoon Design
https://youtu.be/fEhDeiRDHI8 ----Auto CAD Tutorial # Screw Design
