Fillet to interesection of nurbs lines

[clipper]

I am designing a complex pipe structure using the nurbs lines to define the pipes centreline positions. The pipework is bent to a radius at the intesection of each straight run. How can I fillet the intersection of each pair of lines ?

[Kaare Baekgaard]

You can create the bends as symbol objects, that connect straight sections. Or you can create the pipes as continuous extrude along paths with rounded corners.

Here you need to collect the nurbs sections of a pipeline into a single extrude along path object. You can join nurbs lines and curves (as well as 2D lines & curves) using the 'compose' comand. If you want to fillet them, however, the easist way is to create the path as a 2D polygon, round the corners and then convert the resulting shape into a nurbs curve. If the pipes bend in 3 planes its a bit more work, but you can still create long paths from shorter sections using the compose comand.

It would be very nice if the fillet tool worked with nurbs curves as well as polygons. Perhaps it should go on the wishlist.

[islandmon]

As KB states, "You can create the bends as symbol objects, that connect straight sections" ... creation of elbow symbols with 'Extrude Along path' and then connecting the bend symbols with straight NURBS pipes is very efficient. You can create libraries of typical pipes & fittings making future projects very easy to compose.