ReelToReel1 2D• ReelToReel1[cnum, point1, rad1, point2, rad2, dist, C] models a pair of pulleys connected by a single cable. The rotational positions of the pulleys are related as per their respective radii and their separation distance. • The constant C sets the initial rotational position of the pulleys. • ReelToReel1 constrains one degree of freedom. • The constant C, which sets the initial rotation of the pulleys, is given by the formula C = (rad1 e1  rad2 e2) where e1 and e2 are determined in the following way. Place the two sprockets in any valid position and construct a vector from point1 to point2. e1 is the angle, measured in radians, from the constructed vector to the local x axis of the first sprocket and e2 is the angle from the constructed vector to the x axis of the second sprocket. • ReelToReel1 is functionally identical to TwoPulleys1 except that the angular orientation of the two pulleys is effected by their separation distance. • If the Euler solution method is specified, ReelToReel1 generates two constraints, and adds one extra variable to the model. • ReelToReel1[cnum, point1, rad1, {sym, guess}, point2, rad2, dist, C] can be used to explicitly specify the name of the extra variable, and its initial guess. Otherwise, a symbol of the form cnum is used. • The second, and optional third, equation in ReelToReel1 relates the rotation angles of the two pulleys. • See also: RackAndPinion1, SetConstraints, SetSymbols, SysCon, TwoGears1.
