Recently I was offered a spiral to an infrared heater, I now present a spiral with a freer construction and with the ability to change the pitch of the helix and to ask any number of rotating spirals.
Construction of two spiral designs
Construction of a spiral surface
Building designs for the second helix
Construction of a helical surface traektorii
Construction of three-dimensional sketch along the line of intersection dvoh surfaces, and the construction of the spiral ends with spline
Construction of auxiliary surface for eskizaprofilya helix, and the construction of three-dimensional spiral.
The spiral is constructed ! ! ! ! !