Show messages:
1-9
10-22
From: TOM (SIRTOM)
>>Hi Tom, yes the Edit > Extend command can be used to extend a curve.<<
Great ! downloading the file and having a look !
From: TOM (SIRTOM)
Tangent Helper as above ?
Yes thats cool. Will have a look at both of your kind tips !
From: Michael Gibson
An extrude by a single tangent direction won't be quite right because the tangents are slightly different on each side. That's because the surface is cut at an angle as described above. They're only a little bit different though since the surface is only very slightly bent so it will be hard to tell visually.
But if you want a precise result then doing the untrim will recover a planar ending edge that can be extruded to get an accurate tangent extension.
- Michael
From: TOM (SIRTOM)
Michael, I am using the extend command all the time if I have another curve to extend it.
I thought that you meant that is also possible extend a curve into "empty space",
but this does not work, doesnt it ?
From: Michael Gibson
Hi Pilou, here's an example with a tube that is more tightly bent and cut at a greater angle to show you how there isn't one single tangent direction in a case like this:
When you untrim it then you'll get a natural tube end which does have a single tangent direction.
- Michael
Image Attachments:
pilou_tangent1.jpg
pilou_tangent2.jpg
pilou_tangent3.jpg
From: Michael Gibson
Hi Tom,
re:
> I thought that you meant that is also possible extend a curve into "empty space",
> but this does not work, doesnt it ?
Empty space does not have to stay empty, you can draw in a temporary boundary object, extend to that and then delete the boundary object.
- Michael
From: Michael Gibson
Hi Tom, also re: Extend command - the boundary object does not have to be a curve it can also be something a sphere or a plane.
- Michael
From: Frenchy Pilou (PILOU)
When you say "Untrim" in this case of this tube what is untrimed ? Curve? Section ? Surface ? ...
Untrim is "Separate" ?
From: Michael Gibson
Hi Pilou, it's this surface here that would be untrimmed, the same one that wants to get extended:
To untrim it, use Edit > Separate on it first to make it an independent single surface not joined to anything else. Then select all its edges and do a Delete. The trimming boundary will be removed and the full underlying surface will be recovered.
The other end that will not be extended needs to be retrimmed.
- Michael
Image Attachments:
pilou_untrim.jpg
From: Frenchy Pilou (PILOU)
OK!
And this
Extrude --> Boundary Sphere ?
From: Michael Gibson
Hi Pilou,
re:
> Boundary Extrude --> Sphere ?
I'm sorry I don't understand this question. The mention of a sphere above was about the Edit > Extend command, not the Extrude command.
- Michael
From: Frenchy Pilou (PILOU)
Sorry I have read Extrude so now i better understand! :)
From: TOM (SIRTOM)
Empty space does not have to stay empty
:-))
Always amazed by your support - very very helpful tips !
Show messages:
1-9
10-22
