In this video a line in cutting profile and a line in part is selected to make both collinear then Helix/Spiral and cutting profile is selected to cut a thread.
My question is, what is reason for making collinear?
SolidWorks tutorial | Design And Assembly of Pipe vise in SolidWorks - YouTube
Time 55.03-55.12
Note that the Start of the Helix is not connected to the tool profile - poor practice.
Note that the tool is already buried into the part - poor practice and not possible in the real world cut.
The tool cutting action should start at the edge of the part.
Note the change in Start angle (or you could change the sketch plane for the cutting tool profile).
In the attached file I -
1. Increase lead-in chamfer size and added lead-out chamfer on other end. This helps keep thread from getting "galled-up" in real world use.
2. Moved the start angle of the Helix and change location of the cutting tool profile outside of the part (just like the real world).
3. Got rid of the 1.11 dimension and replaced with 1.5 (equal constraint to pitch) at the pitch diameter.