I have this 3D sketch, and I need to link the lines using an arc tangent (red lines)
The tangent behavior must be applied in both connexion lines, on both sides to create a constant line that will be the path of a sweep.
I'm trying for 2 days. ☹️
The .ipt file is attached.
Thanks for any advice.
By using Spline in the 3D sketch and adding two points between the end points, you can then constrain the spline with tangent constraints to the two straight lines.
I did this by making a 4 point spline.
Started at the end point of straight line to the left, created two points in "mid air" and last point was the end point of the line to the right.
The two midpoints aren't constrained here. I don't know if the path of the spline needs to be accurate, but you can move the two points around to get it where you want.
Hope this helps.
Out of these 3 gaps, the middle one is impossible with a simple arc. It will require a spline to be able to satisfy the tangent constraints.
The other two, though, you can achieve with simple arcs instead of splines if you create a plane between the rungs of this "ladder" frame (3D Model > Plane > select two perpendicular lines to the path of the curve), then pick to create an arc CENTER POINT option, selecting a far away center then the two connection points in the curve. Apply tangent constraints and use the "ON FACE" constraint to make the arc match the plane we just created.
I also used a simple spline with one middle point only, and constrained the spline in the middle gap to the surface/ruler dictated by the skeleton bend (used a surface extrusion to constrain the spline's middle-point to that surface). See attached.
