3D modeling

[Jorge.Sanchez]

Is there a way to create a shape along dashed lines that curves and tapers across and then curves down to a flat vertical surface?

[Patchy]

I don't see why it cannot.

[Jorge.Sanchez]

Sorry, can you explain how to do it?

[Patchy]

Draw 2 splines around where it needs to be removed and use LOFT command, after that SUBTRACT it out of the column.

[Jorge.Sanchez]

I'm not sure what you mean. I can send you the file.

[Jorge.Sanchez]

Attached File

[Patchy]

I need it in 2007 format.

and sketch out on a piece of paper the result of the drawing so I can take a test at it.

Tks

[Jorge.Sanchez]

I just need that profile I have drawn to go along dashed lines as shown in original posting.

Thank you!

[leeminardi]

Just to clarify @Patchy 's answer.  Create 2 closed shapes before lofting so that the result is a solid. I like to make the closed shapes regions.  Then  use subtract to perform the material removal.

If the front face of the object is not flat you may need to extend the lofted shape beyond it.

[Jorge.Sanchez]

[Jorge.Sanchez]

I know it looks easy but I still cant get it done.

[Jorge.Sanchez]

the problem is that in plan the beam curves so when you loft "A" to "B" you are creating a flat front and back that co not cover the shape for a clean subtraction. =( Please see attached file.

Thanks.

[leeminardi]

No file was attached.

You may need to create a shape out in front, and in back of the red dashed lines to compensate for the curvature.  Attach the file and I will give it a try.

[Jorge.Sanchez]

Attached File

[Johanna_Esteban]

Good day @Jorge.Sanchez, 

It's possible.
1. ISOLATE the shape you want to extrude and the dotted lines that are the path to follow (which I did not see in your attachment).

2. EXTRUDE, select the pattern and then in the options presented by the command choose PATH and that's it.

To take into account: do not use a spline as a pattern, since the spline has too many adjustment points and it will be reflected in the solid, I suggest using polylines.

Attached file with the test I did.

Regards,

[Patchy]

I tried SWEEP but Autocad is too stubborn ☺ to listen to me.

[leeminardi]

I isolated one of the 3D edges and used it to construct a 2D spline from which I made a region and extruded it.  I then used align to position it against the vertical surface and then rotated the shape with rotate3d  and moved it vertically so that it was adjacent to the back bottom edge. At this point I could see that my original shape needed adjusting.

I adjusted the spline so that the right side penetration of the extrusion would be a bit higher. I also adjusted the tilt angle a bit resulting in this model.

After a Boolean subtract you have the following.

If you think it is worth the effort I could do a couple more iterations to get the right side thinner.

I think working with splines and not polylines is the way to go.  Remember that in general the fewer the number of CVs you works the better.

The attached file has several copies of the model at different stages of construction.

[Jorge.Sanchez · Accepted solution]

Thank you all for your enthusiasm and support. I finally figured it out thanks to you all for jogging my brain. I'm sure there are multiple ways to get this done but this is the one I found to work for me.

(Birds eye view) I took the profile and extruded it along the arced path.

I then sliced the resulting extrusion with a 3 point alignment of the inside the plane of the column.

I then "union'ed" the column and the beam together and filleted the inside angle to get the curve.

Cheers!