AutoCAD Inventor :: Unable To Use Lofted Flange On Offset Ellipse
Jun 27, 2012
I am currently working with an elliptic profile that needs to be unfolded. The part consists of two sketches, with each sketch having two ellipses. The ellipses on each sketch then forms a cross-section where the thickness of it is supposed to be 8 mm (the first ellipse is offsett).
My plan is then to generate a mold for the inner and outer sides of this part by using the "Lofted flange" function and Rip, since I want the flat pattern of it. However, I've found that I can not select my offset ellipse when using Lofted flange, only the original one. I'm thinking that this might be caused due to the offset ellipse not actually being an ellipse but a spline (I read somewhere that there are two ways of offsetting an ellipse. One generates a mathematical ellipse and the other a spline). Creating an new ellipse and then saying that the a and b distance should be 8 mm less than the other ellipse will work, but that will not give me a constant wall thickness of 8 mm along the circumference of the elliptic cross-section.
I have tried to do a lofted flange. It works, but there is an extra bend that I don't understand why it is there. The bends, I would assume, should be symmetrical but they are not. I have attached the part.
Looking to developed the lay flat of a pan that has two different contours The small end must nest into the large end. The geometry for each end is in the attached file was draw in Auto-Cad and imported into inventor. Try to connect with lofted flange but only can select one piece of geometry at a time.
Tried to make them polyline's. {did not work} Do I need to create geometry in between them?
I am having trouble creating an extrude-cut from an offset ellipse. It seems that when the ellipse is offset, it becomes an associative spline. I need it to remain associative with the original ellipse.
But, when I try to extrude a profile using the new spline, it won't recognize the edge.
I can't just create a new ellipse, as it's profile won't quite match the offset one. I tried tracing over the ellipse with a spline, but it then requires a vast amount of dimensions to constrain it all together.
I'm trying to extrude-cut the red outlined profile (including the elliptical part of course)..
When creating a loft between two curves, I am not able to control the top and bottom portion of the surface created, I have joined a picture of the part and my IPT file with the problem I got.
I'm trying to emboss a sketch to a lofted body. The same sketch is embossed perfectly on a flat/round/extruded/chambered body, but on this particular lofted body I get an error ("Thicken operation would result in a large topology change. Try with a smaller thickness"). I already tried with 0.01mm thickness and still not work. What could be the cause. (I'm using IV 2013)
I've created a simple loft using a sketched circle and a fixed workpoint. The loft feature is a loft to a point, with a tangent condition set at the workpoint.
I'm looking for a nice smooth 'button' like feature. However, as you'll see in the screenshot there is an annoying 'seam' or 'join line' running from a point on the circular base to the workpoint.
The 'seam' does not display when the loft feature is set to "loft to point" condition.
why this is displayed and am I able to get rid of it?
What I have is a bracket that sits on a pitched roof (ipt attached). The part was set up to reflect the positioning. On the lower side of the pitch, the easiest thing was to scuplt the flanges to the slope. Although the flat pattern results in some edges not being perpendicular to the face (See image). These show on the drawing. I realize you can remove these in the drawing but it would be nice to not worry about it.
What would be a better way of handling this situation?
I am working on a bin type unit, and am having trouble creating a flange, I am creating the bin in the final product stage, then I will separate into manufacturer components. I am having trouble adding this flange around the top 4 edges of the bin. I need the four corners to meet on a miter 45. I will then rip down each seam and have 4 separate panels.
Is this a bad workflow? Is there a better route? I attached the part in Inventor 2013 format,
I made a sketch for a bracket and used sheetmetal/contour flanges tool to make solid.I had to use 2 contour flanges to get the shape as i could not get it to work with 1 contour flange.Is this not possible due to something wrong with my sketch?
Other question is have i used the Cut tool correctly for the cut out of the brackets?
I'm having no problems creating the contour roll, but it won't let me add flanges to the outside edges. I have attached a file that shows the measurements that I want. I need to be able to create a flat pattern. The material thickness is .1046" and 3" deep.
I am trying to make a way that suppress the flange features of all the panels that will be insert in the assembly so i can suppress all the features at ones in a assembly and don't have to do that for each panel separately.
I have a assembly with parameters and i have a part with no geometry but have linked the parameters from the assembly. In my panel part i link the parameters to the part with no geometry.
When i use the parameter in the assembly to suppress the flanges that works the way i want it. But when i insert the panel part into that assembly it doesnot work.
I am trying to create a sheetmetal part and flat pattern of a 72" radius section with 3" split flange top and bottom.I have searched the Discussion Group and several other sites with no results.
I would like to know if there is a way to have the Schedule as an I-Part parameter of a flange. I'm trying to create a custom flange for use in the content center and would like both size and ID to be picked from a drop down when placed into an assembly.
Since it's a flange not a pipe I can't use the standard tube & pipe authoring method.
I'm trying to make this part on Sheet Metal, and I have to offset this flange at 28 degree that meet 0.37". The thickness is 0.12". Currently, the only method that I know how to meet that 0.37" is by playing around (guess and check) with the number in picture 3. Any other methods to create this offset part.
I tried to create a overlap flange in sheet metal, but the result is not what I want as I cannot select the gap edge near the circle portion. I attached the file here.
1) I have assembly containing pipe and a flange. I want flange size to correspond pipe size. In other words, when parametrically change pipe size, flange size to be updated automatically. ( do i need to have two parts - pipe and flange, or it can be one assembly without need to create parts?)
2) Is it possible to control type of flange (slip-on, weld-neck.. etc) by parameters or need to make different assemblies for different flange type?
3) Then when flange and pipe sizes are updated would like to make overall length of that assembly whole number (since hub length changes with the flange size). how to round that overall length to integer?
I have sketched a fan casing which consists of a series of tangential arcs. The sketch is fully defined but when I try to use "Contour Flange" I get the following error:
Sheet Metal: Contour Flange Creation failed. 19-3-101-26-2.ipt: Errors occurred during update The attempted operation did not produce a meaningful result. Try with different inputs. Try decreasing bend radius Feature Compute failed.
My guess is the end points of the arcs are not defined correctly but I do not know how to fix. I have attached the file.
how I can combine the bend function & flange in an animation. The problem is that I'm unable to use flange when the plate is nearly 98% flat (which I need to remain the radius for favorite parameters - bend function).
I am trying to make a punch tool in inventor for sheet metal. I noticed that for the features I could not select faces or flanges I did. I know you can extrude the same shape to get the same result but I wanted to use a face/flange so that I can retain the flat development. What is the best way around this.
To get a sense of what I am trying to make:
-square cut out
-on the bottom edge of the square I made a face that is angled at 45 degrees
Is there an easy way to flange so that the flat pattern comes out with the two sides' faces are parallel to each other? I have attached the part I am trying to work with.
I have a sheet metal part where I selected an incorrect edge when creating flanges, is there an easy way to deselect the edge? I can add edges and I can select the glyph for a specific edge to edit it, but short of deleating the feature and starting over I have not found a good way of deselecting an edge.
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