helical

I have old Alibre 2011 expert and I have a problem. I need to make helical gear. 2D sketch is easy and I have tooth profile there. But my old alibre doesn't allow helical boss because it requires reference line. If it could use reference axis then it would be easy.

Good morning. I need to make accurate involute helical gears in Alibre Atom3D. When i construct gear cutout as always and make a straight gear they mesh perfectly. When i use the same sketch and make a helical cut, with a helical pitch calculated from a formula: "reference circle diameter" /...