AutoCAD Inventor :: 3D Sweep Path Using Specific (x / Y / Z) Function
Feb 13, 2011
I have a project I'm working on which requires a sweep path to be a graphical parametric mathematical function in x, y and z.
ex:
x=1.25*sin(10*t)
y=sin(t)*(12+1.25*cos(10*t))+12
z=cos(t)*(12+1.25*cos(10*t))
(this curve is a groove in the surface a bicycle tire. It spirals around several times and gets subtracted from a solid torus)
I was using an old version of NX I-DEAS and this task was easily accomplished with the "function spline" feature. Is anything like this possible in Inventor? I know I could create a list of points in excel, but I'd really prefer not to.
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Jan 24, 2012
Is it possible to sweep a solid along a 3d sketched line path to cut a groove / slot? This is like milling a slot in material on a milling machine so the cutter goes along a path removing material.
I can draw a rectangle that represents the side plane of a slot type cutter and this works but in the corners it is not working like a round cutter and leaves sharp corners which then need filleting to finish, but also I am not sure if it is cutting exactly as if a solid round/cylinder cutter would.
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Jan 8, 2014
I am trying to sweep a profile throughout the helical sweep path which is a series of 3d sketches. The sweet prifile sweeps correctly to the first 3d sketch profile but whin I select the second line the preview is gone and Inventor gives me an error saying the sweep cannot be done. how I can have the sweep done throughout the helical structure.Attached is the ipt file.
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Sep 8, 2011
Is there some way to get the overall length of a sweep path?
We are creating a 3D sketch to run a pipe cross section along and for the final material we need to know what the LF is.
Inventor Pro 2013 (PDS Ultimate)
Vault Pro 2013
Windows 7 64
Xeon 2.4 Ghz 12GB
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Aug 2, 2012
I am using Inventor 2012. I am trying to sweep the pink shape around the pink rectangle but I get a weird result. Can I not sweep around a rectangle from the center? See attachment. I want to add more to the shape but when I do the result gets weirder.
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Aug 29, 2013
I am trying to recreate and 3D model the impeller of a heartmate II LVAD (URL....) but I am having problems with the sweep along the helical path. The profile is the vertical line and the path is the helix. I want to use a surface output for now. I had to use Solidworks to generate a variable pitch helix and import into Inventor.
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Sep 5, 2012
I encountered problem when using sweep (path&guide surface)
It was enable to give you preview option (which is a surface that i wanted) but when i hit OK. It gives error as the text box.I tried again to no avail.
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Dec 30, 2011
I have a sweep that follows the shape of the path sketch, but the sweep itself is made to the right of the sketch. How can I get it to fall directly on the path? I have attached a picture of the sweep as well.
HP Z400 Workstation
Intel Xeon @ 3.33GHz
12.0 GB RAM
Windows 7 64-bit
Inventor Pro 2014
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Sep 13, 2013
I am having a difficult time centered the helical path (the equation curve) and lofting the two profiles (centered) through the helical path in the axial rotation direction..
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Sep 18, 2013
When preparing an assembly for export to a Revit family, all features need to be recognized as Revit features. I have a part which consists of a sweep with a 3D path, 2 planar sketches projected to a 3D surface to be precise. To make matters worse, it's a sweep whose end meets it's own beginning (the intent of this specific model is to just satisfy a shape, not necessarily reflect the way it's going to be produced). To date I have not found a way to have this sweep feature recognized as a Revit feature, be it as a single feature or multiple. I am running Inventor Professional 2014 on Windows 8 64-bit.
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Jun 7, 2013
I have a tunnel profile that I need to sweep around a path. This path is a 3D Polyline but it has arcs and slope associated with it. The sweep command has this automatic banking or twisting to it that just screws everything up. The profile needs to stay perpendicular to the path and the floor of this tunnel needs to remain flat.
I have attached the actual working drawing. It has the profile (which is a simple typical tunnel) and the path all situated.I'm working in AutoCAD 2012 if that really matters.
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May 23, 2012
I'm trying to do a 3d curve stair rail. I had the 3d spline path, I had the polyline rail profile, but after I sweep the profile, it end up being twisted at the end of the rail. Same problem happens when I did a sweep using a helix path, imagine a vertically placed rectangular profile at one end of the path then after using sweep command, the other end was somehow twisted on a certain degree. How can I avoid this twisting problem
See the before and after image. I wanted the rectangle profile to remain vertical throughout the whole sweep
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Jun 26, 2013
Is there a way to sweep a 3d polyline in AutoCAD 2012? Colleague has a sweep path that he wants to put radii in the corners. I know that in the past you could not do it. I didn't see anything in any post that told me otherwise.
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Jul 11, 2013
I have been trying to convert this surface (attached file) into a closed volume. But somehow it isnt working.Then I tried to create this figure myself by creating two circles (one at the top and the other at the bottom) and then creating the path for using the sweep command , but it gives a error " sweep produces self intersecting curves".
convert this surface in to a sloid volume or if thats not possible can this geometry be created to the nearest possible approximation.
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May 11, 2011
I have this part that need to be extrude along a complex path. However, every time i try this the bottom of the part does not stay parallel the the x-axis.
Here is the drawing:
Curved Stair.dwg
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Mar 7, 2013
Why the "Text along path" feature hovers the text so far above the currently active path? (in my case, the space between the path and the text is about 3 times the height of the currently used font!). I've been told that the letters should lie on top of or at least closer to the path instead. How can I move the text closer to the path?
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Jul 9, 2013
How does one draw a complex curved line to act as the path for a sweep in REVIT 14?
I need to create an arch (shown in elevation), that follows a curved path (shown in plan).
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Jan 28, 2012
I would like to insert a block in a specific layout (eg. "LAYOUT13") using the function vla-insertblock
I have already searched the web and this newsgroup but have not found the solution.
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Dec 22, 2012
I am attempting to model an internal 1/8"-27 NPT thread, both the through hole and the tapered part of the hole are modeled, but after I draw the helix and the polygon and orient the polygon to the helix correctly, (or even if I don't, I have tried it) it keeps saying unable to sweep object. I am using Sweep with Alignment with the No option. If I select the polygon first, then click sweep, it works, but rotates the polygon so that what I get ends up looking nothing like a thread profile.
I have tried reducing the polygon radius down to a ridiculously small value, thinking it might have been interference due to a possible trig miscalculation, but with no success, still have the same issue. FYI, I am using a .037" turn height for 27 TPI and a polygon radius of .0214", with a helix small end radius of .177" and large end radius of .189".
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Nov 13, 2012
I'm trying to be able to have a function run another function with the secondary function being passed as an argument to the first. I'm trying to create a recursive function and the recursive part works great. I just need to be able to have the recursive function run other functions to actually do stuff.
Here is something I found that should do what I need, mainly run a function from a function name in a variable.
Sub test() Dim ftnName As String Dim argument As String Dim result As String ftnName = "myFunction" argument = "cat" result = Application.Run(ftnName, argument) MsgBox resultEnd SubFunction myFunction(inString As String) As String myFunction = inString & " has " & Len(inString) & " letters."End Function
However I get the error "object required" on the "result = Application.Run(ftnName, argument)" line. So I'm guessing the Inventor VBA doesn't like this method of doing this. I'm just hoping there is a way to do this or this function will be useless or reduced to hardcoding functions which still defeats the purpose.
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Dec 7, 2011
I've had a simple lisp I've been using for years that suddenly disappeared. It required that you identify a block name, tag name, and the value that you want the tag to be. All of this is performed via command line, so it is scriptable. Since I lost it, I've been experimenting with -attedit. This command comes frustratingly close to what I'm looking for, except it only appends an existing tag, or replaces a specific string within the tag; I can't get it to replace the entire tag, regardless of its value.
1> Any lisp routine that does what I describe?
or
2> How to make -attedit replace a tag value without regard to what the value currently is (like a * wildcard)?
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Jan 29, 2014
Solution to getting a horizontal sweep to miter with a vertical sweep? Or maybe there is a way to pick a path? A feature in the full version that Autodesk deemed unnecessary for LT.
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Feb 22, 2013
getting a horizontal sweep to miter with a vertical sweep? Or maybe there is a way to pick a path? A feature in the full version that Autodesk deemed unnecessary for LT
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Jun 23, 2008
Using CS3 on a new system, but still on Windows XP. I want to stroke a path. I make a path with the pen tool, make sure the path is selected and when I try to use the "stroke with brush" thingie in the path palette, as I move my cursor over the stroke with brush icon a little no-go crossbar thingie appears there telling me it can't be done.
Read a few forum messages on stroke with brush problems - this lead me to check that "spacing " was selected in the brush palette for the brush I am using and it was. Pretty new to CS3.
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Feb 13, 2013
On solidworks, There is an option to rotate the profile along the path as it sweeps. I'm curious if there is anything similar to that ability in Inventor? And if not, if there is a way to create a helix along a curved axis.
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May 11, 2011
I have looked through these forums and found plenty of sweep problems and the answers to the problems but none for this particular type. I made a 3d intersection curve and am trying to sweep a profile along that curve but I keep getting the discontinuous segments error. I am using standard inventor 2011.
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Aug 1, 2013
Trying to create a 3D sweep. I want to keep the sweep parallel to the XZ plane (like a parting surface). In the attached part, there is a SweepSrf3 that has sort of what I am trying to do, but it does not go all the way around the path. Notice how the sweep is parallel to the plane. I tried to do the same thing in SweepSrf4, by selecting the 3D Sketch1 as the path, Sketch2 as the profile, and Workplane2 as the Guide Surface. That failed.
In SweepSrf4, the only way that I could get the sweep to come close to working was to use the 3D Sketch1 as the guide rail and the circle as the Path. Seems like I need to use the circle as the guide rail and the 3D Sketch1 as the path to get what I want... but that fails.
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Dec 28, 2013
How can i pattern a hole on a specific path?
please look at below picture : [URL] ........
I like to pattern a hole on along of the M shape path.
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Mar 5, 2013
I am having difficulty aligning the profile for a sweep feature. I need the profile to be normal to the path, but aligned vertically. In other words, the rectangular profile should remain "plumb" along the entire sweep. Is there a simple way to do this?
I have shared the sample files, trying to use the profile in two different ways, through Dropbox (they are too large to upload). I am using Inventor 2013.
[URL]........
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Mar 22, 2012
I tried the tube and pipe run to build this segment, and cannot select the route from the 3D sketch.
This route was based off of a 3D sketch made from included geometry from another part.
Tried sweeping too - and get error that the sweeping operation did not produce a meaningful result.
But I don't get the self intersecting error.
All this is is a .250 OD and .180ID profile that needs to be run through the path.
I included the part file.
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Nov 6, 2012
am using Inventor 2012. Is there any way to select two rails when sweeping? One for the x and one for the y. I can only select one rail. If I choose Profile Scaling X & Y, it does not sweep the way I want to.
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