In the attached file
NDP-Site6-curve-252602.3dm (66.3 KB)
I’m trying to fillet a corner where a straight line comes in contact with a curved line in 3D space. If I connect the lines and do a FilletCorner it fails without a hint. If I make them separate but touching and try a Fillet, it fails with a hint the the curves may not be in the same plane. Is there a way to make the fillet I want of about 2" radius? I guess I could do the lines in one plane, fillet the corner and then bend the top line but that seems less than optimum.
A little while later… as sometimes happens I find a solution. It may not be the best. I created a circle using 3 points on the two curves, then trimmed the ends of the lines using the circle as a cutting guide. Then I used BlendCrv. It seemed to make a nice curve.
Dear @Joe4
the transition you re after is not possible with a fillet.
workaround
the workaround would be to use a _sphere at the corner, use the sphere for trimming the curves, use _blendCrv or _ ArcBlend to do the transition.
if you need a predefined top-view, build a surface and project a (planar) Curve to it.
geometry
Fillet_to_VerticalLine_00.3dm (2.7 MB)
the blue circle defines the distance (and in this case radius) for the fillet you wish. the black line and black arc meet at the center of that blue circle.
the party pooper is the red tangent - it is not in the same plane with the vertical black line.
to get a real arc between the vertical line and the big arc - you need to move the big arc to the green position - then a fillet (green) is possible.
but look at the pink cutaway / extension of the bigger arc - it s not meeting the vertical black line.
hope that explains it
kind regards -tom
Hi @Joe4
As an addition to @Tom_P’s suggestion, there’s also ArcBlend (instead of BlendCrv), if using true arcs is important. Instead of a single curve, it’ll use 2 true arcs (with minimal radius difference) to connect the end points (after you’ve used the sphere to trim them).
HTH, Jakob
I added this to my long post above…