Autocad used to perform the LOFT command partially in the COMMAND LINE and additional properties could be setted in the DIALOGUE BOX.
I used to draw my lofted elements :
1. Pick sections in order
2. Following Guide, Path,...
3. Dialogue box ( sections smooth fit, ruled, normal to,...)
4. Volume was drawn.
Nowdays it's a bit more extended but in step 2 when u pick a path the volume is drawn immediately and I can't append additional properties like in step 3.
I need to shell out a Loft in the attached IV 2012 part file.The Loft i tried also as a new solid but the shell also cuts into the cylinder ( revolution 1 ) . I only want the 2 sides and bottom of the Loft to be Shelled, not the cylinder. What do i need to change to get the shell to work?
I want to loft two rectangles using arc as a path , but i cant , 1st i cant draw the arc in 3d so i draw it in "Front" view , then i cant loft the rectangles using that arc as an path -"The selected entities are not valid" , maybe because i draw the arc in "Front"(bottom left), but i cant draw it in 3d?!! Here it is some screen shot:
I'm loft retarded. What I did here was loft to a tangent work plane, then did a sketch on the top surface and extruded the shape that I want. There has to be a better & easier way.
I have a cylinder on top of a curved surface; I want to make the cylinder land adaptively to the surface, so I projected the circular face of the cylinder in the surface, which ended up being a 3D sketch. I tried to loft a solid between both curves, but it always gives me errors. Some examples are:The attempted operation did not produce a meaningful result. Try with different inputs.Multiple disjoint loops found in a profile section.
I have had success when trying to do the same thing with curved surfaces in two dimensions only (e.g. extruding a 2D curve), but I think the error is produced since the curved face I am trying to use belongs to an elipsiod.
Okay I've been building random things to teach myself how to use Inventor and right now I'm stuck on a rim I'm creating. My question is.. is there a way to copy and paste a lofted item since there are three parts to it (2 planes and 1 guide) because I need 4 more spokes and if I copy the loft it copies all three parts seperately. Then when I paste and orientate the small end of the loft to the plane I want it tells me "Unsatisfied Geometric Inputs".
I am having trouble trying to get the Loft-1 to run the same shape as Revolution-2 .Picture 1-1 shows how Loft-1 is slightly off centre to Revolution-2 at the top .could i model the Loft-1 and Revolution-2 using different tools in one command making it a smooth shape. Another problem i have is how do i make Revolution-2 at the end terminate into Revolution-1 smoothly.I tried using Loft but it kept getting fail message.Picture 1-2 shows where to terminate the end into the Revolution-1 body.
I have created a loft from 4 different sketches. Now I want to make a drawing with the front, side view and the dimensions of the 4 profile sketches from the loft. But I can’t find a way to put the sketches from the part on my paper. It works with copy-paste ;^) but this is not the way I want it (it’ll not change when I change the profiles in the part).
I am following the U-Tube exercise called "Emergency Light (Cabinet) volume 1". I am at time stamp 1 hour 26 minutes, exactly.
In the video they use a Loft command in order to cut a shape out of two sketches numbered 10 & 11. I have been copying exactly and am having difficulty at this stage of the model.
Is there any reason why I am managing to use the Loft command earlier perfectly but not at this point.
Using the image below, I want to removed the yellow extrusion up to the red circular edge, I assumed split tool would do this.
And I don't require this but i would like to show the splines on the ends to "feather" out to the round like the actual axle does. (this is just for aesthics) I have the extrusion done, But I can't figure out feature is requied to do this, loft?
I have a solid that was created by extruding a regioned profile. I have made a lofted item (Yellow), that I will have to subtract from the solid (Green) to create a hole. When using the subtract command, I recieve the following error.
"The selected surface was ignored. Surfaces cannot be subtracted from solids or regions. At least two solids, surfaces, or coplanar regions must be selected."
I'm making these legs for a piece of furniture. I need this to be a solid object.
So I drew a vertical line, set the radius using circunferemces. Then (can't remember how, it was long time ago) I manage to turn them into surfaces (circles, so it's an area).
Now when I loft them, it won't result in a solid. Why?
I am a newbie just start learning how to use AutoCAD in both 2D and 3D.
I have drawn a 3D polyline, and putting two circles with different diameters on both end, trying to loft it and create a horn-shaped like object.
For some reason, AutoCAD keeps complaining the path I selected is not valid, and so I can't do the loft operation. However, I have 'tested' the path with sweep function, and it works.
I have a part that I'm trying to loft using 3d sketches for the rails will this work? Everything is fine till I try to add the rails, As you can see the loft works with out the rails.
I'm trying to produce this loft but the rail I really need it to follow won't produce any results. The other ones on the 3d sketch will work just fine but not the regular sketched one. It seemed to work when I made the rail a straight line but I need it to follow the edge of the surface which is a line, tangent to small r3 arc, tangent to line and connected through projective geometry from the original surface sketch.
attached are 3 files that demostrate what is happening when I select a profile to loft and the rails of the Surface and how it changes the profile and how I can get a straight back edge not bowed in like it did to the front
layman what Autodesk is wanting me to change? Trying to use "loft" to skin the surface of 5 polylines. It will do the first, second, third and 5th for a surface, but doesn't like the 4th polyline I created.
I want to create a solid using VB and loft definition.
I creat each time different planes that have a constant distance in x dimension and a steady rotation each time φ (deg).
On each each plane i sketch the same profile and that is happened for 360 deg.
The problem is that Loft is not made because a line of the profile must follow a line tragectory and all other points must follow a circular tragectory. Also, there is a problem from 180 deg to 360 because there is intersection of profiles.
The result must be a solid similar to snail shell but all the same solid, as a cylindar whith a half sphere in the bottom.
In the attached sample file if you edit the sketch in the first surface feature and change the dimension of 600 to 700, both the patch and loft features fail. It seems to be the curved edge that is the problem in both cases.
I cant see anything wrong with either way of modelling this so assume its a bug.This causes other problems in my real model with parts that reference these types of surfaces falling apart further down stream and is wasting heaps of $$$.
I am trying to loft a triangle around the path of a helix. I want the top point of the triangle to be facing in such that the ouside surface is flat (in the veritcal direction) for the entire helix and I have the two triangle cross sections oriented to do as much. Whenever I try loft it, autocad associates sides of the triangle that aren't supposed to connect causing the triangle to twist along the path. Is there a way that I can easily tell autocad which sides I want to connect?
