AutoCAD Inventor :: Complex Move By Constraint Anomaly?
Jun 22, 2012
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There are several uncontrolled jumps during the movement, but in the end, after some delay, it's normal again.I can send the Inventor 2013 files to an FTP site.
I am designing a vertical axis wind turbine just for some practice (just started using Inventor) and everything was going smoothly until I tried to "animate" it spinning. First, I set up a work plane that goes through the center of the structure, and then I clicked angle constraint "explicit reference vector." After watching several youtube videos, I figured that I should click on the work plane, click on another reference point, and then click another point that would be orthogonal to those two (right?). Well after I choose the first point, Inventor will only allow me to choose the center axis as the second option (which I think should be the third option).
I have a dynamic block that I am trying to add some pretty basic functionality to (at least it seems like it should be simple!). Since I’m still relatively new to DB’s, I figured I’d give some background on what I’m trying to do, cause maybe it could be done with a much easier approach than I have come up with. So if you don’t feel like reading the details, see the fourth paragraph for my actual question.
The block is a sheet reference annotation (that shows: SheetNum/TotalNumOfSheets) that we typical put in the notes section of our construction drawings. It looks nice when the text (which are attributes), lines up with the text in the note (usually Mtext, but sometimes a Mleader). So I constantly find myself completing the tedious task of placing the block at the insert point of the Mtext (which is always justified LEFT TOP), and then calculating the distance down to line that I want the block to line up with.
So what I want the block to be able to do is to be able to have the user grab the block by its basepoint, place it at the insert point of the Mtext object, and just enter the text height of the Mtext note, the line space factor, and the target line of the note that the sheet reference block should line up (the input would all be done via custom block properties in the Properties Palette). And since we almost always use a text height of 0.125 and Line Space factor of 1, those will be the defaults, and really the only thing that would need to be entered would be the line number of the Mtext that the annontation should line up with.
I already figured out most of the constraint parameters necessary and calculated the offset equation using custom parameters. I have all the linework moving correctly using the vertical constraint parameters, however, I cannot figure out how to get the Attributes to move along with the linework. I know how to move text and attributes using Action Parameters, but I can’t do it with Constraint Parameters. So I figured that maybe I could chain an Action Parameter to the Constraint Parameter, but I couldn’t figure out how to do this either. Also, I am using visibity states and would like the visibility grip to move along with everything else as well.
My block is attached. I used some lines for the Constraint Parameters to be associated with, but they are only there for the block to operate correctly, therefore they are invisible in both of the visiblity states. Probably not the best way, but it works.
I have a surface made up of gradings and feature line that I had to come back to and edit. I picked the surface and selected go to source file and when I got there one of my infill's has gone missing and the surface has a big hole in it. The weirdness is the sheet file that refs it does not have the hole. What is that all about.
P.S. Editing a surface built up like a Rube Goldberg contraption is no fun at all. Glad my best practices are coming along since
Civil 3D 2012 & 2013 HP Z210 Workstation Intel Xeon CPU E31240 @ 3.30 Hz 12 GB Ram 64 Bit Win7 OS
I have a shape that happens to have many nodes; it was simple to extrude it (inventor saw it as a complete shape) but adding fillets is another story. each tiny segment requires a click to select it. is there any way to simplify this — either through simplifying the path somehow or by selecting the edge in some other manner?
i saw a thread on the forums about imported 2d vector files with a similar issue. I did import my file but it came from rhino. everything is fine except this one issue. i guess i could go back to rhino but i would prefer not to.
i have attached a small screenshot of one area of my sketch.
I have a problem regarding a mechanical design. I want to make a pin move around a complex shape, always tangent to the sides of the shape. The point is not to have it animated, but I need the constrain so I can further work on the mechanical design.
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.
I have an assembly which has components mated to a radial surface, I need to locate the center of a round slot against an axis, I have X Y coordinates, how can I constrain that part to those X Y coordinates?
Maybe I've just been doing it wrong for the last 5 years, but the Angle constraint is obnoxiously unpredictable. When I constrain a part in an assembly with an angle constraint from the assembly origin plane (or anything else), Inventor always has two solutions; a positive and negative.
Is there something I'm missing here, or is just a design flaw we have to live with?
In inventor 2013, how do I engrave and wrap some text onto a surface that is neither on a cylinder, a cone, or a sphere? I created the part by first drawing a cross section made up with the spline tool, then revolved it around an axis. I need to imprint two words on the part's curved surface. I sketched the words, then I tried using the emboss/engrave wrap feature, but I got an error message saying that emboss/engrave wrap can only be done on standard surfaces such as cylinders, cones, or spheres. How to engrave words on surfaces other than these standard surfaces? I also tried to extrude cut the words onto the surface, but the words don't wrap to the surface, and are not evenly imprinted onto it.
Also how do i make the letter's bigger when I sketch them? even though I put in large numbers such as 50 in the size box, the text does not appear big. Also, how do I increase the spacing between the letters?
I am trying to place a tubes cylindrical surface to another tubes cylindrical surface using add constraint. How do I specify which side of the target surface to apply the constraint ?
I have a question regarding a transitional constraint between a pin and a surface within an adaptive assembly.
I would like the pin and the surface to be transitional only when the two parts "interfere" with each other.
At the moment with the example attached part A is remaining tangent to part B, restricting the necessary movement of part B to function properly in the mechanism.
In simplified terms I need part B to be able to break free of the "transitional constraint" of part A under certain movement conditions within the mechanism.
I have noticed what I consider a bug in AI2009. When trying to delete a coincident constraint using the show constraint command, it is impossible to do so. All other constraints I can delete while I am in the "show constraints" dialog box, but not coincident constraints. As soon as I get out of the "Show constraints" command, the yellow dots are still showing and I can then hover over them and they highlight so I can delete them. Is this how it was intended or should I be able to delete them like the others while still in the "show constraints" command?
Is there a way to expand the constraint window so that I can see my entire parameter formula? In the image below, my equation is cut off in the "offset" window. Or am I supposed to be inputting the parameters in some other manner?
I'm having a really difficult time maintaining my parameters when making changes to the part I've made in the attachment. The control parameters for this part are:
-100 mm distance between 15mm circles -1 of the 15 mm holes -30 mm hole
I am new to inventor but I would also like to be able to set up my constraints correctly. I'm also not sure if my sketches are ideal for this part either. I usually get an error concerning my fillets from the base to the center support beam when I try to change the 100 to 75.
I've assembled a bolt and a slide block that is constrained to a base plate and am able to put everything in motion. I have the slide block constrained to slide the distance of the base plate and when I reach the end the bolt continues to rotate when, if this was a real part, should stop. How can I get this bolt to stop once the slide block reaches its ending constraint?
How do you constrain an object to the origin once the origin constraint has been deleted. I'm not really sure how it became unconstrained in the first place. When I try to constrain the drawing using the coincident constraint it won't allow me to select the origin.
Why can I not constrain placed objects with three constraints? Anything I place constrains with one constraint then is virtually fixed (without being) and cannot even be moved to allow for further constraining.
My need is to assembly parts into an assembly by a known position in the assembly. The part has a UCS and I create UCS on the assembly programatically. What I cannot do is to constrain the two UCS. I tried this (Inventor 2013 x64 on W7/W8 64, c++ 2010 by the way DEBUG mode is not working from the IDE):
To activate the new position of the assembly of approx 5k instances takes about 5 minutes in IV 2013 when using Drive constraint. The larger the assembly the longer it takes
In IV2011 takes about 10 seconds. I've never seen the "Not responding" sign in Drive constraint window in previous versions. I'm just wondering how can avoid this "New feature" of 2013.
We have an interesting problem after reinstalling the software. We found that there is a time lag between the mouse pointer and the line highlight to indicate we have click the correct entity. The video attached in the link below may be able to explain our problem better. In the video, we move the mouse to where we want it and it shows a time lag.
I can't seem to get inventor to select a given parameter inside a sketch. It keeps giving me an error.
All I want to do is to have inventor Select / Highlight a parameter inside of a sketch so the user can clearly see it in the window. Ive tried heaps of different selection options, I just can't work out what ive done wrong.
Sub GetParameter()Dim TargetName As StringDim oCompDef As PartComponentDefinitionDim oSketch As PlanarSketchDim oConstr As DimensionConstraintDim oParam As ParameterDim oCmdMgr As CommandManagerTargetName = d0 ' parameter nameSet oCmdMgr = ThisApplication.CommandManagerSet oCompDef = ThisApplication.ActiveDocument.ComponentDefinitionFor Each oSketch In oCompDef.Sketches For Each oConstr In oSketch.DimensionConstraints If oConstr.Parameter.Name = TargetName Then Set oParam = oConstr.Parameter oSketch.Edit Call oCmdMgr.DoSelect(oParam) Exit Sub End If NextNextEnd Sub
I have an assembly wherein one part is mated to another grounded part, with a face-to-face coincident mate. The click + drag type of movement appears to move the part, while continually solving this constraint.
However, it seems like there is no way to do a rotation in the same manner, where the constraint is continually updated. There appears to only be the "Free Rotate" command, which ignores the constraints.
Is there really no way to do this in Inventor? The application is that I am laying out a mold for many, many small parts, and I am trying to move and rotate them into position to get good packing efficiency and density. Each part will be attached to a mold base with one of the aforementioned face-to-face constraints, then slid & rotated around manually.
This seems like a really important piece of functionality. Solidworks can certainly do this, do a part rotation in an assembly, while solving for existing constraints.
Motor Model 1:1 is used to turn the wheel holders at various angles. The part named "front gear spring holder" is supposed to revolve and turn the inner part of the "front wheel holder" My problem is that I want to simulate the turning of the front wheel's using contact sets or 3d/2d contact sets in the dynamic simulation environment. I do not know how to do this, but I'm almost certain the program is capable of doing so. Also the spinning of the front wheels must be able to be done along with various angles of the front wheels(while turning, the front wheels must be able to still spin with the front gear spring holder".
I have seen threads and articles that say that making gears with contact sets is not recommended or possible but i have two instances here where they work perfectly fine using the dynamic simulation with 3d /contact sets. Take a look at the simulation I have saved as well.
I will need more on this assembly in the future, including how to create bevel gears that work at 90 degree angles or spur gears with contact sets instead of just simulating their movements .
Attached is an assembly that I created. It includes a timing belt, 2 pulleys, 2 shafts, and some profile lugs that are attached to the belt with a false tooth.
1. why can't I constrain the profile lugs around the radius of the belt? Also, when I created the belt and put the holes in it, they disappeared because they ended up in the radius of the belt.
2. Is it possible to create a motion constraint to this model, so that it moves like a real belt?