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Problem to perform a Loft shape in a correct form.

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Message 1 of 5
cvelasquez1
1548 Views, 4 Replies

Problem to perform a Loft shape in a correct form.

Hello.

I'm trying to make a shape with Loft command, but when I choose the path/guides it says "The selected entities are not valid" this is weird because I'm using a polyline as a patch. The HELP section says a polyline 2D/3D can be used. (Objects That Can Be Used as a Loft Path). I explode the polyline and I use arc and lines as guides and nothing happen either. I have to perform the whole Loft shape by steps in order to complete it, but I would to know how to do it without have to do it in long way. Somebody know why this happen? I left a link with a video what I'm saying. In fact, I left the file in case somebody wanna check it out. Thanks.

I'll appreciate your help.Smiley Wink

Carlos Velasquez.

 

https://www.youtube.com/watch?v=3uA5JCUNznQ&feature=youtu.be

 

file: https://www.dropbox.com/s/5gryldq9r16cw0c/Loft%20Shape.dwg?dl=0

 

I'm sorry! for some strange reason the page didn't leave me attach the file, for that reason I put a dropbox link for the file.

 

4 REPLIES 4
Message 2 of 5
nestly2
in reply to: cvelasquez1

The polyline fails as a path because it does not maintain tangency between the arc segment and the straight segment at the transition between FormB and FormC

Message 3 of 5
cvelasquez1
in reply to: nestly2

Thanks nestly2. I used your advice making a new drawing. I did the pacth with parametric constrain (tangent) and I reorganized the forms moving them point by point and then I apply the Loft command. It worked very well this time. Thanks again. Smiley Happy

 

Carlos Velasquez

Message 4 of 5
nestly2
in reply to: cvelasquez1

If you encounter something like this in the future, it may be quicker to use the FILLET command to make sure tangency exists.

 

http://www.youtube.com/watch?v=rT0m6jfI1Yk

Message 5 of 5
cvelasquez1
in reply to: nestly2

Mmmm.... It's good to know that. Thanks. Smiley Wink

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