Hello, I am trying to create internal threads on a cylindrical piece using 2"" diameter 20TPI threads. For some reason I am having trouble finishing the design with a swept cut. I have my cutting tool - a triangle and it coincides with the helical path for my threads. I thought the issue might be that my cutting tool did not intersect a perpendicular plane so I created another in the right plane (the first was in the front plane) and it still did not work. Can anyone help me understand what is happening? I have attached the part. Thank you in advance!