Sweep and Path

In the video to get a structure like this 95mm circle is sketched and a point on the circle is used as staring point of Helix and Spiral.

Why is circle going through the vertex not used as a starting point of Helix and Spiral? Because I tried with vertex and couldn’t see any difference.

 

Solidworks tutorial | Design of intermittent mechanism in Solidworks - YouTube

Time 17.00 – 17.38

SolidworksParts And Features