AutoCAD Inventor :: Lofting / Extruding To A Point Along A Curve
Jul 15, 2012
Coming from Sketch up to real big boy tools. I watched the tutorial videos and tried poking around a bit for this specific answer but came up a bit short.
What I'm trying to do is loft a face to a point. Easy enough. I've got my point established on an offset work plane, and I can just loft to that, however, I get nothing but straight lines. (First attachment)
An example of the ideal outcome in SketchUp is the second attachment.
I'm having the most difficulty trying to draw the curves along which I want the face to be lofted because, even as I sketch along my 2D plane, I can't snap the endpoints of my arcs to the endpoints of the face (or the point to which they'll all connect).
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Sep 9, 2013
I have the need to curve a region, then extrude it, is this possible?
The region is a flat view of a plasma cut plate with lots of holes/shapes that then gets rolled, doing it the way I describe would exactly re-produce in cad how the finished physical product comes out.
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Jan 26, 2012
I keep getting this message. I know others have posted about it- but back int 2006 [URL]. The referenced link showing the solution is no longer available.
I read on an archived blog somewhere that is was a glitch in autocad2005. I am running 2010- so I don't get it. I really need to extrude these plines
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Feb 7, 2013
I want to find the intersection point between a cylindrical curve and faces in a body. I have the start point an start vector and a rotational velocity. With this values it should be possible to create this cylindrical curve.
Is there a function in inventor which I can use?
Currently I am using the function "FindUsingRay". But I thing that there is only the possibility to fire a linear function through the body.
Today I found the command "FindUsingVector":
Sub FindUsingVector(OriginPoint As Point, Direction As UnitVector, ObjectTypes As SelectionFilterEnum(), ByRef UseCylinder As [defaultvalue(-1)] Boolean, ByRef ProximityTolerance As [optional] VARIANT, ByRef VisibleObjectsOnly As [defaultvalue(-1)] Boolean, ByRef LocationPoints As [optional] VARIANT,
I did not find any information in the "Autodesk Programming help". what is the difference between this both functions?
Is the argument "UseCylinder" for a switch into cylindrical coordinate system?
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Sep 2, 2010
I'm trying to animate a simple character's neck growing along a bendy curve. The head and shoulders need to be fixed at either end of the curve. It would be great if I could avoid ugly texture stretching too.
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Aug 23, 2013
what would be the procedure for creating a loft around a coiled path? is there a way to make the coil command create a path.
inventor 2014
Windows 7 Pro 64
i7-3820 3.6GHz
32 GB RAM
2 TB HD
NVIDIA GeForce GTX 660 Ti
Liquid Cooled
3D Connexion
CM Storm
twin ASUS LED
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Jan 10, 2014
I am working on creating a male mold for a canoe. I first designed the cross sections for the canoe and then began converting them to the mold cross sections. When I try to loft the cross sections I have converted so far, they all loft as I intended until I get to the rear of the canoe (sketch 8). The issue typically arises in gunwale section (the part that appears to be a notch in the sides). Everytime I loft, one of the gunwales splits/twists in an undesired fashion (in the image below the right gunwale is incorrectly twisted).
I do not understand why this is happening for a few reason:
1. The canoe cross sections lofted as planned, and I only added simple boxy shapes to those cross sections.
2. Each cross section is symmetrical (or at least from what I can tell they are).
3. The cross sections that are lofting improperly all have the same number of segments and are in very similar shapes.
I have attached the file of the cross sections and another file of an improper loft.
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Jan 22, 2013
I am developing a tool that will allow a user to select a curve, and dump out the points at given intervals along said curve.
This works well for 2D objects.
If I have a line from 0,0,0 to 10,0,1
it outpus
0, 0, 0
0.9950, 0, 0.0995
1.9901, 0, 0.1990
What I want it to output is the point at the interval (2D plane, with the elevation)
0, 0, 0
1, 0, 0.1
2, 0, 0.2
etc
Is there a way a function I can use that would allow this, or do I need to write my own function?
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Feb 19, 2013
I want to draw hyperbola curve whose equation is x^2/a^2 - y^2/b^2=1. May I use equation curve tool to make the above hyperbola.
I have also made a hyperbola curve of aforesaid equation through conventional method on mathematical ground in the past.
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May 20, 2013
What changed between acad lt 2007 and acad lt 2012. Cannot draw a simple 2 point spline curve in 2012. how I do it? Is it a sys variable changed somewhere?
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Aug 4, 2013
I find intersection of two curves with interop
Dim Zinters As Object = DuvarObj.IntersectWith(MainObj, AcExtendOption.acExtendNone)
then pass the intersection points pt1 and pt2 to managed code to get length of the curve between two intersection points , but I realized that sometimes decimal numbers maybe 10th after comma is different than the curve's start or end points. And so the code below throws error, since point pt1 or pt2 is not exactly on the curve, but they are the intersection points excatly.
What can I do?
Dim dist1 As Double = ent.GetDistanceAtParameter(ent.GetParameterAtPoint(pt1))Dim dist2 As Double = ent.GetDistanceAtParameter(ent.GetParameterAtPoint(pt2))
Windows 7 (x64)
AutoCAD 2012 (x64)
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Nov 24, 2013
Spline curve command has changed. This is terrible as I used to use simple line types to show different things on my drawings that was rapid fast with custom macros etc. Now the spline curve command does not work in same way costing me hours of time wasted. I have now resorted in saving all incoming drawings to older version and completing my drawings that way. Only problem is the new drawings are growing above the capabilities of my old machine.
How can I initiate the old std 2 point spline curve in the new software so it works the same way as old version?
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Apr 20, 2013
Is there a way one can draw a point array on a curve without starting from the beginning of the curve? I want to place point objects at equal intervals on a curve, but starting at a certain distance from the beginning of the curve.
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May 11, 2012
I am a fairly new user to C3D so this may seem simple.
Can I insert a point on an alignment at a particular Station?
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Jul 8, 2013
I have tried, such as creating lines in a 3D sketch and projecting the geometry to surface, and creating a work plane, and both don't seem to work for me.... I'm trying to cut out a 5.8mmx14mm rectangle out of a cylinder. When I project the geometry to the cylinder's inner surface, I cannot trim the solid in order to extrude. I've attached the file.
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Apr 9, 2012
I have some trouble with extruding this autocad file after i have imported it in inventor. I have tried to make everything as a block but with the same result..
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May 16, 2012
I can't post the original files, but I have gotten permission to post jpegs of what I am trying to do.
My end goal is to fill in between the grey part and the surface. The surface comes from another part in the assembly, and I used Copy Object to get the surface in this part file. Ideally I would like to do something like Extrude> To Next and select the surface as my terminator. I have done this with success with curved surfaces, but not complex curved surfaces. Does Inventor not handle extruding to complex curves?
Another option I tried was simply extending this part out beyond the surface using the Split feature to trim the part. Again, to no avail. I also tried creating a subassembly of this part and the part the surface is derived from with this part extending beyond the surface, deriving it and subtracting the surface part so I could use Delete Face with the Lump option. No dice there, either.
There was a hole in the side of the surface where I am trying to extrude the part (it is still open on the other side of the surface), but I used Patch and it seemed to fill it in just fine.
How to get accurate fill volume data in complex assemblies.
Inventor 2013 (SP2 Update 2), Windows 7 Professional (64-bit), SP1, Intel Xeon 3.07GHz CPU, 12GB RAM, NVIDIA Quadro 2000, Vault Basic 2013
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Aug 24, 2013
I have been extruding bodies around parts, then using their verticies for the frame generator (to guard around complex machinery.I then suppress the body and am left with the guard frame.
when i go to get the mass for the part, it includes the volume of the solid body which was used to give the outline.how can i turn the material property to zero density?
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Nov 1, 2012
I'm having trouble extruding a fully constrained sketch. The sketch is a cross-section of a hollow cylinder that is splined on the inside surface (see attached part file). The line segments that create these splines seem to be grouped together because moving one line moves the others, however the sketch will not extrude.
I can't use the coincident constraint button to group the lines because they don't separate from each other. I also tried to use the close loop button but was unable to select all the necessary lines.
how I can extrude this sketch or make an equivalent sketch that is easier to extrude
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Oct 7, 2011
(Inventor 2012) I have a weldment. I can make holes and save, I can make revolved cuts and save. I can make chamfers and/or fillets and save. But if I try to extrude a cut (any cut), I receive an error.
Problems encountered while saving the document.
Error(s) detected while writing segment AmBREPSegment in database C:lah-blah.iam
Error detected while saving object of type MIxTransactablePartition in C:lah-blah.iam
Error detected while saving object of type MIxPartition in C:lah-blah.iam
The attempted write operation did not succeed. Part file may be corrupt.The database in C:lah-blah.iam could not be saved...
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Nov 9, 2013
I am trying to constrain a point(on a different part) to the sketch(yellow) on the inside surface of the triangle part. If I try the constraint like how it is now, it only allows me to select one segment, not the entire triangular shaped line. It would work if inventor saw the sketch as one single element, but it of course does not. I tried making a 3d sketch of the inner surface and then constraining to that, but it did not work.
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Oct 3, 2012
I have just upgraded to 2013, and there is one "feature" I find kind of distracting. When working in a part, I create a new sketch. When I extrude that sketch, Inventor automatically switches me to an Iso view. I don't want that. I would prefer to stay in the view that I established.
Is there a way to turn that off?
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Jul 19, 2013
I have a shrinkwrapped file. Now the link is broken from the actual assembly and the orginal assembly is now gone. Now in this shrinkwrapped file, there is a portion that I want to isolate. Is there any way to delete / remove the other parts that i dont need? Extruding, sculpting and delete faces dont work. So far the only thing I can do is add extrusions to the part but not remove.
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Jul 6, 2013
i have cs6 64bit installed well may i ask some question about photoshop cc?
1) what i miss about photoshop CS5 , is the curve adjustament layer , i loved used the eyedropper + ctrl to add points in the curve is there in cc the possibility to add point in the curve like cs5?or can i set auto select target adjustament tool for curve palete only?
2) photoshop cc add some features
1) content aware in acr
2) a different resize dialog ( i don't know if it uses a new engine to resize)
3) anti shake photo filter i don't need it
i don't know anyother for photographers , i watched the adobe video but sadly i can not download it to watch slower ,english is not my mother language
3) last question well i have to pay for every months to get the update or to have photoshop working
i mean i need always to be connected to the net to use photoshop do i need sometime for example 2 or 3 times in week / month to be connected to the net to use photoshop or photoshop works after online activation with internet , and i need to pay every month to get updates?
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Oct 3, 2013
I have a long animation. I want to use populate at frame 12000. But populate frames won't let me go over 10000 frames. How can I get my people to animate after frame 10000 as you cant adjust the start point in the curve editor.
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Jan 9, 2014
When I go into Lightroom 5 Develop mode, the Tone & Point Curve box has disappeared. It was there yesterday and I can't figure out how to get them back. I just purchased the product 2 days ago.
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Nov 13, 2012
When clicking on the bottom right icon of the point curve, I can´t get to the channel selector in LR4.2.
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Nov 11, 2013
how can i add an anchor point in the curve in the Channel R / G and B?
in cs5 , with ctrl + click i was able to click on the image and add an anchor point in the curve channel RGB and with shift +ctrl + click i was able to click on the image and add an anchor poing in the channel Red , 1 in the channel Green and 1 in the channel blue.
i know cs6 doesn't have any more ctrl+mouse click , there is the targeted adjustment tool. i can do it with ctrl+m and call the curve but i can't do it with curve adjustament tool
is there a way to add a anchor point in each channel red , green and blue (like the prev Photoshop)?
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Apr 24, 2010
I have a curved path I imported into Illustrator, and I'd like to draw a line perpendicular to the curve at a particular point. I've searched google and this forum, but can't find any description of how to do it. Corel Draw has a button that lets you do this, so I'm hoping something similar exists in Illustrator...
i'm currently just calculating the angle at the point I want using the derivative, finding the angle, and then adding 90 degrees to it. But I need the line to be placed at a particular point, and the X/Y properties of the line are based on the ruler which isn't even in the center of the document (I want to position it relative to the artboard). As in, I just want to set the position of one endpoint of the line...
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May 31, 2012
I recently upgraded my LR 4.0 to 4.1, under Win7 64-bit. In launching LR 4.1 just now, I got a dialogue box "Catalog Point Curve Check" with text "Checking Catalog Point Curves". That persisted for a minute or two, then I got a box "Point Curve Recovery Results" with text "One or more photos have recovered point curves. ..." I followed the included link to read [URL] but still don't quite understand.
In fact, there is now a collection, as the URL suggests, which has exactly two old images from 2010. Why did this point curve issue come up all of a sudden and is there an issue with these two images?
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Mar 9, 2013
Can I bend these paths making a 90 degrees curve pointing right so that the green line forms the inner curve with a smaller radius than the red line?
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