Hi – I need some assistance please. I can draw a helix that goes around a cylinder with a specific number of revolutions and distance between the revolutions. However, I can’t figure out how to draw the helix at a 45deg angle. I have an 8”dia. tube x 60”long, with a 1”dia. bullnose (protruding ½” from the face) with 7” from center to center of the bullnose along the tube. I’d like the revolutions to be at a 45deg. angle. Your assistance is appreciated. – Thank you.

Then you would need to involve some trigonometry. here is the triangle you want to solve