No intersect to surface of a surface made with intersect!

Hi,
V5
I have projected a line to a surface, used result for the end cap of a trimmed FilletEdge, yet unable to use the capped fillet to trim surface,

if its a line projected to surface it should trim that surface surely !

There are times Rhino does my head in.

I then made that line a surface going through the surface, cant fail now, yes it can.
still it refuses to intersect with surface yet I used the intersect to make it !

I used the intersect to be a profile to sweep2 the triangle at β€˜A’
and that triangle doesnt intersect the surface.

I give in !!!

and also at B the edge was used for the sweep2 end fill, and its open .

How the heck do I get this fillet to trim the surfaces , I was convinces the two β€˜ends’ using edge lines and projected to surface lines would trim the surface.?

1 hr on just one small item, whole week on something that should have taken 1 day.

INTERSECT MISSING yet used the edges.3dm (1.7 MB)

Steve

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Hi Steve - my guess is you are after something like this:

where some of the side surfaces are extended to the fillet and trimmed
image

From what I couyld tell the existing fillets was not accurate, I made a new one - either way, the edge near B needs a close look - it does not quite hit the surface edge on the flat face:

image

I’d set file tolerance to .0001 maybe for this.

-Pascal

1 Like

Hi,

I have redone these 3 and using results of project to surface, its bound to intersect, but it fails intersect command.
A B I then drew a new line, projected to surface, ran intersect on the result and just the tip shows a point.

Why does a line projected to surface fail intersect on the resulting line ?

I cannot make the fillet and trim with no intersect.

i try again, draw a line for ab and use a new result.
still it fails .also project ab to vertical surface , get a result, run intersect and its good, make a fillet sweep 2 and it fails to cut it afterwards.

AB despsite being from project fails intersect afterwards.3dm (2.1 MB)

2 hrs fiddling, does my head in !

Steve