Hi,
V5
I have an accurate trace of the centre line of a figure 2, but cannot fathom out how to get the rounded chin of the corner.
MAKE 2 WITH PIPE.3dm (441.4 KB)
I have tried doing the base separate but get a sharp chin and anyway the surfaces will not join.
Whats the solution ?
Cheers
Steve
Pipe weirdness - RH-80323 Pipe cap radius incorrect
-Pascal
I split the curve at the sharp corner and piped each separately with round caps. Miraculously they BooleanUnion into a closed polysurface. But I am not sure whether you wanted the rounded corner there or not.
File before boolean: (I changed the tolerance to 0.001)
MAKE 2 WITH PIPE-2.3dm (656.9 KB)
That’s one miracle the world could have done without. What an ugly son of a … 
Thanks,
I have cheated and extended it a bit at base as the pic might allow such a tweak a bit !
yes ugly .
Cheers
Steve
Hi,
V5
Now I struggle with 6, I cant boolean it and cannot get intersect so as to cut the surfaces and join.
tried boolean union in V7 and still fails.
How do I boolean union or otherwise trim surfaces with this if no intersect ?
MAKE 2 WITH PIPE-2 THEN 6.3dm (784.3 KB)
Cheers
Steve
Intersection bug
RH-80329 SSX: Intersection incomplete
-Pascal
Use a line to split the donut into two pieces:
Explode the hockey stick so you can delete the bottom hemisphere:
Create the intersection curve between the top half of the donut and the bottom piece of the hockeystick:
Extend the curve to a point, the point being here, and do the same at the back:
Use the curve to trim off the internal part of the hockey stick:
Use the curve and the circular intersection curve together to trim the internal part of the donut:
Join the remaining pieces to make a closed polysurface.
Hi,
@jeremy5
What command to extend the curve, as I use _Extend and the end is not just following a natural extension but whipping around.
I select the cut line as the target , run the command and its allowing me to move the curve all over the place.
Steve
ExtendCrvOnSrf (extend curve on surface)
No, ExtendCrvOnSrf doesn’t seem to hack it (probably for the same reason the intersection is incomplete). I used the “by arc to point” option, aiming for this end point:
Note: bring the cursor to the point from above and only bring it close enough for the point to be selected and you should avoid exotic looping paths. If you do get them, take the cursor back to the start of the extension and try again.
If you still can’t avoid the loops, put a point on the target spot, turn off all osnaps except point and run the intersection using the point as the target.
HTH
Jeremy
Ah you’re right, I forgot what I did when I tried a few days ago, sorry. Too early this morning and not enough coffee… 
I used Extend (Natural) and simply clicked on the point desired for each end. That seemed to be as close to the surface as necessary to allow it to trim correctly.
