Tutorial - Making a helical gear in AutoCAD?

Here is the tutorial

Answered with a tutorial: https://grabcad.com/tutorials/tutorial-making-a-helical-gear-in-autocad

good I finished the job by 2008 thanks

I had problems with this because at step 13, we're suppose to type in a radius value of (0,35), which I kept thinking was actually 0.35 (notice the period, not comma). Instead of 0,35 the author could have simply written 35! What a relief now that I got it! However, now I don't know how to do this according to an exact angle, for example, 60°. Anyone want to help out?