AutoCAD Inventor :: Dome With Fins Construction
Nov 22, 2011
How better to represent this shape - its a dome, which the height is a parameter (elispe), and the fins coming off the top of the dome are supposed to be angled (thicker at the bottom then the top), and the height of the fins needs to increase as they move towards the center.
I created a dome with a repeating pattern of fins but having trouble getting the varying thickness of each fin along with the varying height - the whole part I'm wanting it to be a thin wall shell that can be cast in aluminum and then cleaned up with cnc -
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Mar 14, 2013
I need to create several domed solids (as different parts) based on 2D sketches of various shapes. I am trying to emulate domes that you might creating by pouring thick resin.
Using this forum I have found that you can do this easily using Loft to-point, then use the Conditions tab to get the dome height/shape set nicely.
The only problem is when the 2D shapes have a corner that is too sharp - then it leaves ridges on the domes - like the arrows show on this example - which is based on a simple rectangle with 0.5m radius corners:
I found one thread on this forum that said to use Delete-Face, then Patch - but the I couldn't get the patch to leave nice smoothed edges - and without bulging.
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Nov 25, 2011
Trying to get ribs / fins constructed along the surface of this dome - like them to be evenly spaced and follow the angled plane above. Any thoughts on best way to build this ? Repeating patern doen't work because width of fin changes for each iteration across the dome.
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Feb 23, 2013
How to create a dome using just the surface area?
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Dec 24, 2011
Everything is on one layout/sheet.
Currently there are a total of 3 viewports in an L formation. The fourth viewport, will go in the upper right. But first, I have to get these aligned.
I think the viewports themselves are fine enough. The problems arise because the model is in Model space so, construction line (as far as I can tell) didn't want to snap to a line, (on the model,) in Paper space.(vertical or horizontal) So, I can only see the construction line, in one viewport at a time. Which means, the construction line is not visible in the viewport immediately to the left. So, I can't extend the construction line across both viewports, to to snap them to the construction line.
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Dec 13, 2011
How to create some construction lines on the Inventor drawing? I have been used construction lines on the AutoCAD drawing; it is very convenient tools to use in the daily basic.
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Dec 17, 2011
Currently I save all my 2D DWGs as IGES files and then import the files into Inventor. That converts all the geometry to Construction Wires in an IPT, which means MUCH improved performance (you don't have to wait for Inventor to convert every single entity in the DWG to a Sketch entity). I then start a new Sketch and Project those lines that I need from the Construction Wires.
Is there a way to do this directly (convert to Construction Wires) with a DWG, without having to save as an IGES file first?
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Nov 11, 2013
Is there any way to give selection priority to real geometry instead of construction geometry? Every time I go to dimension or constrain IV wants to to pick the construction geometry first. I would like very much to change that.
Inventor Professional 2014
Windows 7, x64
Dual-core i7, 8GB RAM
NVIDIA Quadro FX 880M
HP Elitebook 8540w
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Nov 4, 2012
I would like to export sketches, but leave off the construction lines as they all show up the same in my CAM program. Is there a way to not export the construction lines? Possibly using the "Post Process" options of the Export Options. I am using 2013.
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Dec 1, 2011
i've got this snowboard rack that i need to layout/markup with some #8 machine screw holes (with countersink for tapered wood screw head) - two on the end of each stretcher to fasten them to the uprights - 8 in total. I also want to layout 8 more holes on the stretchers themselves. I've got some center holes marked in the sketches..but they're not visible when i activate the hole feature so i can properly place the holes?
why i can't extrude the 4 spacers i've got sketched on the back of the stretchers into a solid . . . . i can only cut?
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May 16, 2011
Is there any way to hide construction lines in Part & Assembly sketches in the same way you can in a Drawing sketch?
I know you can change the line colour to the background colour but this makes the lines invisible in sketch as well.
Not being able to hide the construction is making some layouts pretty pointless since relevant detail is obscured by the construction lines. Grounding the geommetry and deleting the construcion lines isn't an option since the sketches are part of the design development and not fixed.
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Aug 24, 2012
I'm wanting to have vertical and horizontal construction lines already created whenever I start a sketch so that I can set symmetric constraints to the part I'm drawing up. At the moment, I have to draw both lines every time and constrain them to the center point. It would be much easier if it was already there when I started so I can start on the sketch right away. Is there a way to do this? I've included a photo of what I'd like to do.
Inventor Professional 2013
Intel Xeon W3680 @ 3.33Ghz
12GB DDR3 RAM
NVIDIA Quadro 2000 GPU
Windows 7 Professional 64-bit
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Dec 12, 2011
I created a really simple missile model in sketchup and imported it into 3dsmax. The flat pollies that make up the fins of the missile only seem to exist from one direction. Do I have to give them thickness or is there a way to make them visible exturable from both sides?
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Aug 7, 2012
I am trying to suppress features or Extrusions if the extrusions are outside of the Raduis of a contruction circle Called the OTL. I have added a model to look at. So lets say I have holes enougth for a 40" dia but I want only hole today for a 20" dia how do i suppress the holes on that radius. Sketch 10 is where the OTL contruction line is and its a radius so its always moving as I go from center out.
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Jan 10, 2013
import this Solidworks 2011.STEP. Can turn this .STEP into a usable inventor part?
I'm using Inventor PRO 2012 64-bit.
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Nov 17, 2011
I have to design a 3d model of 4v geodesic dome and I've never ever used 3d feature before . I am using Autocad 2012.
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Aug 20, 2007
i would like to build one of these domes in my backyard and id like to be able to make simple plans to use. how would i go about drawing one of these up or is there a simple command like sphere or torus that would start me out? URL....
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Sep 19, 2012
A couple of quick questions:
1) Once a construction centerline is placed and constrained can you switch it to just a regular centerline?
2) Can you change a regular line to a construction line?
3) Can you change a construction line to a centerline?
I guess what I am asking is can you change line types at all ones they are placed?
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Sep 15, 2000
how to draw a geodesic dome shape? some sort of lisp routine perhaps...
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Apr 15, 2005
how to make this dome shape in photoshop.
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Aug 29, 2013
Just doing my normal practise in Illustrator. Ive came across designing a dome sphere shape. And Im using the 3d revolve techniqe, So I have my symbol to map onto the 3d elipse. but towards the top of the sphere the symbol tends to get distorted, and it looks aweful. So I also tried another technique to envolope distort with top object but its hard to achieve making it look 3d, because the sphere faces dont go around.
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Mar 25, 2012
I have a specific requirement which is to apply an image, pattern or text to a 3d dome. The dome is will be in two half's and layed flat in 2d then printed off with the design so that when the two halves are joined together the image or pattern matches across the seam. Is this even possible?
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Jan 18, 2011
how to create a dome wireframe effect for use in a background?
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Apr 22, 2011
When I set up the Image based lighting in Mental Ray, and key the dome that is created to rotate in a animation, it is clearly rotating in the viewport, and when I render individual frames, it works, but when I batch render (confirming that the render range is set correctly) it renders each frame with the dome in the same position.
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Apr 12, 2012
I am making use of some of the building models created using CAD. Since the models are added to virtual earth, I would like to get clarified for few of my doubts,
1) say, when the buildings of true representation on ground is made, whether any reference axis with respect to ground is considered to build the model?
2) How the scaling is made for the same model with respect to ground?
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Mar 29, 2011
I have this problem with construction lines - maybe it's a misunderstanding of how they're supposed to work on my part. (And I know they're kind of old school and I should use some direct input probably for some things, but I like 'em )
If I click out in blank space, they seem to always act fine - that is, they'll rotate to any degree based on a next point or go ortho if that's turned on.
But, if I click first on a snap (any type, mid, end, etc), then move my mouse somewhere else to pick a second point, SOMETIMES the xline slides along along with my cursor, staying aligned to one of the two ortho directions. It does NOT stay fixed at the first point picked and additionally, will not go to any other angle (regardless of where the second point is). Sometimes it works okay when I start from a snap.
Ortho, Polar, etc all have no effect on this behavior.
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Jan 11, 2014
I lost a toolbar containing several very useful construction icons. The buttons created red horizontal, vertical, cross hairs and other useful options with the click of a button.
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Oct 9, 2013
When trying to place a construction line through an intersection the line offsets depending on where the cursor is placed. When the on screen prompt ask to specify through point. It defaults to 0 and I enter in 45'. It comes back invalid. believe this is a snap setting somewhere but I cant seem to find it.
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Sep 5, 2012
I would like to know if there is a way to produce a report, or an Excel or text file in order to list and sort all the construction files by the levels or divisions they are in (i.e. to retrieve information from the corresponding project navigator xml files).
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Jun 21, 2011
I wonder how do you create a concrete construction under the stairs?
The way ACA creates stairs looks like just a top layer (tiles or wood panels), but I want to put those tiles on a concrete construction.
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Apr 20, 2012
How to get my invert labels to reference construction north rather than actual (surveyed) north?
C3D 2012, SP1
Win7-64 bit
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