I have an elliptical cam whichI need to use in a simulation. 2D Contact joint throws an error message: "A curve can only be a spline OR a loop of lines and/or arcs." when trying to use the elliptical cam. I don't know of a way to create an accurate ellipse using curves or splines
If it helps the ellipse is 50mm X 30mm.
ETFrench
Hello @etfrench,
Two ways to create ellipse curve -
#1, Create a 2D sketch and make an ellipse with the ellipse command.
#2, Create a 2D sketch and create equation curve by equation below, example with 50, 10 as major and minor axis' length.
Cartesian coordinates
x = 50 * t
y = 10 * sin (t * 360)
Hope it helps!
The ellipse command can't be used to generate the geometry for the 2D Contact joint (see original post).
The formula you posted makes a nice sine wave, not an ellipse. This site show the formula for an ellipse:
x = a cos t
y = b sin t
Entering that in the equation curve dialog as 25*cos(t) and 15*sin(t) returns a short curve.
ETFrench
