AutoCAD Inventor :: Constraining A Plate Via Sketch Lines
Mar 29, 2013
I have an oddly shaped flat plate extruded from a sketch, the sketch of which has lots on constructions lines, none of which actually represent solid edges of the plate. However, I want to locate the plate to other components via the geometry defined in the sketch.
I find that when I am trying to constrain the plate to other parts none of the sketch geometry is available to me. Points, lines, construction lines, circles; I can select none of it when constraining. I am confused. How can I constrain such a part?
Just to clarify - the flat plate is the base of a structure. Its profile is decoratively shaped, so nothing about the cut edge of the plate is suitable for constraining to. I need to constrain off geometry defined in the sketch.
I have "Shared" the sketch.
Inventor 2013
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Aug 16, 2012
I'm having trouble with constaints, I'd like to constrain my sketch to a point in another sketch on a different plane. Is this posible in Inventor? If so how? If Inventor works differently how would you get a points in one sketch to be linked to points another?
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Dec 13, 2011
I am trying to make a 3D sketch that is constrained to two different parts in an assembly. I want the sketch to be constrained to each of these parts so that if you move the parts relative to each other the sketch will adapt.
I have tried using work planes and project geometry but when I go to move the part the geometry won't always follow the part. I am using a spline for the 3D sketch so it should be able to adapt when the parts are moved but the problem is constraining it to something that follows the part.
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Dec 29, 2011
How does one constrain a sketched line in the sketcher to a datum plane?
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Aug 7, 2012
Unfortunately, it's chock full of proprietary customer data, so I can't share the parts or the assembly. But I can pretty well explain what needs to happen, and I've attached a JPG that shows a bit of what I'm doing.
I need to design a bracket to hold an RPM sensor at a certain gap to a spiral bevel gear. I've got a huge assembly model (non-Inventor) from the customer, as well as the model for the sensor. My plan is to start a master IAM, insert the customer assembly, insert the sensor and constrain him, and draw the various hardware I need around the sensor.
So I start by making a work plane that matches the bevel angle and is in a location so the end of my sensor will be flush to that plane. Create a sketch on that plane, then project 2 relevant axes to create the appropriate "origin" from which my location will be based. Place a point on one line, at a certain radial distance and constrain my point.
So now I've got a point and a plane that are where I want my sensing face and my centerline axis to be. What now? I was thinking that I'd create a work axis "normal to plane through a point", but this workflow isn't available in the assembly environment. I can't constrain a solid to a sketch point, so I really don't know what to do at this point in order to put the part where I need it.
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Jan 28, 2013
Is there any way to make 2 to sketch lines instead of floating lines so that I can dimension them?
For example, if I have a part that can change lengths and I need to print off a new drawing, it would be good if I could say that the lines were a set distance from each end of the part or some features of the part.
Then I could update the part length, then just open the part drawing and not have to adjust anything.
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Dec 18, 2013
Cant figure this out - I create a sketch in a drawing, but I cant see the lines as I'm drawing them. The lines are on a "solid" layer set to red as defined in my standard. The background of my drawings is black. When the line command is done, the line appears and it's red. Problem is I cant see it as I'm sketching. Is there any way to modify this? Can I have the line appear red (or white) as I'm sketching?
Product Design Suite Ultimate 2014
Vault Professional 2014
Windows 7 Pro SP1
HP-Z400: 2.67 GHz 12 Gb Ram
Nvidia Quadro FX1800 driver 276.42
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Dec 14, 2011
Just getting started, gone through all the tutorials back in 2008...
first time I've actually tried to make something,
Can't use the sketch b/c there's probably a gap in the outline, is there a quick fix?
(Did the entire thing in snap to grid, was hoping there's a function to either connect lines all at once, or ignore Extremely small gaps).
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Jul 17, 2013
In sketch mode, there is a function to split lines, but I don't see one to join lines.
(I'm talking about colinear lines with the ends touching - I want to convert two lines into one).
It may seem trivial, but I'd like to use these lines in frame generator to select by a single line and not by endpoints of two different lines. Less clicks and more consistency in my model.
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Feb 19, 2013
When I am in sketch mode I can draw a rectangle and when I go back to dimension it it only adjusts that specific line and not the connecting lines. Is there a setting or command to fix this?
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Dec 12, 2002
I know about the pink lines, green lines, and black line, but I recieved a part from another person and it had red lines for the sketch, how, what did he do to get those? He doesn't know how he did it.
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Mar 21, 2013
How can I have sketch lines drawn to perfect lengths. I mean it should be in multiples of 1/16 of an inch.
Inventor Professional 2013
Vault Collaboration 2013
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Jul 23, 2013
I opened a part today and noticed that it had collapsed into itself.
This should be a rectangle 85x15.75:
On closer inspection it appears that the vertical lines somehow became zero length lines. Why does this happen?
Edit: I should mention that I was able to repair the skecth by making the 85" dimension driven, then dragging the line over...
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Dec 12, 2013
I am having problems with lines disappearing in a sketch randomly. I am in a small assembly, going in and out of sketches used for machining, and then the sketch lines and dimensions will all be gone when I enter a sketch. If I hover over the sketch in the browser I can see the lines highlighted, but when I remove my mouse the will disappear. I cannot interact with the lines or dimensions at all. If I draw a new line, it immediately disappears. I have tried changing some things in the view tab and settings but haven't had any luck.
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Oct 27, 2012
I have created a chassis wireframe using 2D and 3D sketches. In frame generator, I am able to insert frame members on the 2D lines, but not the 3D lines. I can put frame members on 3D lines ONLY if I use the "insert members between points" placement, but then I can't merge several members together to create 1 tube (can I?).
How do I put frame members on 3D sketch lines using the "insert members on edges" placement?
OR
How do I merge tube members when they are inserted using the "insert members between points" placement?
Inventor Professional 2013
Windows 7 64-bit
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Oct 12, 2012
I have a question regarding copying geometry in drawing mode.
When I was working in V5 and making drawings I sometimes had to "fake" geometry, the world is not perfect I know, copy geometry in the 2d, like center lines and such. I am trying to do the same in Inventor and use the project geometry button and geometry is created but it does not show up when exiting sketch.
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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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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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Jul 10, 2013
I am using Inventor 2012 and have recently experienced a problem with the fillet not working correctly. I have a curve and a straight line that connect and when I select fillet it will allow me to select the curve but not the straight line. I have been able to do this in the past with no problems.
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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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Oct 29, 2013
In assembly mode, how can I click on two lines in a part sketch and get there intersection point using VBA?
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Feb 1, 2012
I have a newly discovered issue with left clicking and moving lines and points in 2D-sketch.
After working in Inventor for a while I cant move lines and points(green and unconstrained geometry). If I exit 2D sketch mode and enter again I can move a line once and then its back to not being able to manipulate the geometry at all, the curser just want to create a marking box.
I have a new optical mouse with cord, its a Logitech G400. I have switched mouse but with the same result.I have installed the latest driver for the mouse.
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Jun 28, 2013
Being all new and complete virgin-like, to ilogic, I would like to know wether it is possible to analyze a sketch (wenn it is being closed)?
What I want to analyze is:
Does the sketch contain a fully constrained closed loop?
Does this closed loop consist only of straight lines?
What is the total number of lines in the loop?
Next fase is:
Create an excel-sheet with the following information:
For each line in this closed loop i wish to add the length of the line, and the angle to the next line (consequently on the internal side of the loop, resulting in angles from 0 to 180 degrees).
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Sep 14, 2011
Why can i use lines from a 3d sketch to constraint a part to a skeleton base part?
I have attached a example where i try to constraint the tube.ipt using 3D geometry lines of the part Layout_3d_sketch.ipt in the assembly teste.iam, but i'm unable to select any lines from that file.
Why can't i use this 3D sketch lines in a skeleton base part?
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Oct 26, 2012
I have been searching for a macro to export the start and end point of a line coordinates to excel, but I can only find information on how to export 3D Points.
Is it possible to program a macro that allows me to export the start and end point of various lines in a sketch?
The objective of this is to connect an excel file which is updated when I create a line with it correspondent points, then i could not only import these x,y,z coordinates from excel to inventor but I whould be able to update my spreedsheet whenever I change my sketch.
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Dec 19, 2011
Also, I'm having a hard time completely constraining copy 2D sketches. What Inventor requires to constrain a 2D sketch?
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Nov 12, 2013
When I rotate the drive shaft gear very slowly, the assembly follows the the correct motion path, (figure 1), however, when I rotate it quickly, the assembly snaps the linkages to an orientation that is not physically possible, but satisfies the geometrical constraints (figure 2). I can't use contact solver because I am using the adaptive function for my sub-assembly to avoid having to re-constrain many parts.
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Mar 26, 2012
Is there a way to do this? 2 parts, 1 has a hole in it and the other has a slot. I want to constrain the center of the hole to the center of the slot. How do I do this?
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May 10, 2013
I'm just getting started using the Tube and Pipe environment for some of my work, and I've got what I'm hoping is a simple question with a simple answer. In the picture attached I've got a 1" pipe dropping down into a 8" pipe which I've disabled because it's a standard part right now and I want to replace it with a tube & pipe run. The thing I seem to have the hardest time doing when routing my pipes is aligning/offsetting my nodes with existing geometry in the assembly. In this case I want the end of the 8" pipe to be 12" offset from the centerline of the 1" pipe, and for the 8" pipe's centerline to be 12" below the bottom of the mezzanine's I-beam (as the standard part it is now). What's the best way to do this in the Tube and Pipe environment?
I tried "Include Geometry" from the "Create" panel but that only lets me create planes, which won't work with offsetting from the 1" centerline. However, SOMETIMES (it's a big sometimes) ALL of the options in the "3D Sketch" tab are available. When that's the case, I can go to the "3D Model" tab and create workpoints, axes, and planes. Sometimes, though, they're not all available, and I'm not able to place anything but planes. How I can change it so I can always use all the geometry of my assembly?
Also I'd like to know if constraing fittings and point-snapping routes to my assembly geometry in this way is the best way to do Tube and Pipe routes. Will doing this allow my routes to update if the assembly changes?
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Dec 26, 2012
I am assembling a weldment and need to place a looped bar onto a tubular stanchion 50mm below the top of the stanchion. I have made axis at each point on the stanchion and the bar, but i cant figure out how to constrain the loop to the point I require. All I can get it to do it to constrain to the centre of the stanchion only.
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Jul 2, 2013
I have a piece of steel that I need to flex. It is a piece of blue tempered spring steel pressed against the corner of a brass pressure transfer. The opposite end of the transfer is tangentlly constrained to a latching mechanism. When the latching mechanism is lifted, the transfer rotates slightly around a screw (made invisible) and the spring is flexed. When the latch is released, the spring returns the latch to the closed position. I have several other assemblies that use the same principal, but some with just a piece of mild steel used as a cover as well as a spring.
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