complex assembly in Inventor 2013 with a number of drive constraints set up, which I can drive in the assembly but not in inventor studio... there don't appear to be any conflicting constraints in the assembly
View 3 RepliesI am working on a simple animation. A camera pans and turns from isometric view to a left side view of a mechanical device, which runs all ok and at a fairly reasonable speed. Now the next thing I animated, was an angle constraint. The animation moves a lever which in turn moves some gears, and then each frame takes about half a second to elapse (an very long interval when talking about video). The strange thing is that out of Inventor studio I can supress the angle constraint and move the lever (and thus the gears too) very fluidly.
View 2 Replies View RelatedAt the moment I animate the weight from 0 to 1 and vice versa over a frame, but when I reopen the damn scene its all wacky. What the heck is going on here?
I tried to install ET PickUp but its giving me an error to do so.
I have two dynamic blocks. One is the plan view of a cylinder and one is the elevation view of a cylinder. When I change the parameter of the OD on the elevation, I want the plan view to change. I'd like to keep them as blocks (they're a little more complicated than just cylinders), but when I try to use parametrics to tie these two dimensions together I get: "Constraints cannot be applied between nested objects in the same block or Xref."
View 1 Replies View RelatedI am animating a character for a game. The biped has a sword in his left hand. I constrained a locator to the wrist control, then constrained the sword to the locator, and on the sword's control added an attribute called "Connect". Obviously, 0 kills the weight of the connection, 1 keeps it as is. So, when the character needs to let go of the sword I set the Connect attribute to 0. Works perfect.
except, that when I set the Connect attribute to 0 (subsequently killing the constraint weight) the sword controller snaps back to bind pose. I'd love to maintain the offset, so if I kill the locator weight the sword will no longer follow the wrist control but at least stay where it is instead of snapping back to T-Pose/Bind.
I need to drive more than one constraint at a time. The assembly consist of a hydraulic ram that pulls a cable which is routed around a few pullys and then pulls another linear moving member. I don't really care about modeling the cable right now, I just want the cylinder piston and the final member to move in unison. I can only drive one constraint at a time, so I figured I could relate the two constraints together by setting them equal to a parameter (variable), but that isn't working. Is it me or is driving multiple constraints at a time something that would be very useful for a lot of applications?
View 3 Replies View RelatedI'm modeling cables running through a series of cable clamps. I'm working in an assembly with my structure as one part, clamps as seperate parts, and cables as separate parts. I modeled the clamps first and am using them to create my 3d spline to run the sweep. The clamps have moved several times and each time, the sweeps (cables) do not update to follow the new clamping path. I have tried multiple ways of solving this.
I've tried to redo the splines using "Include Geometry" and running the spline through the centers of the clamps. I've also deleted the constraints (which for some reason turn into fixed) and reapplied them as coincident constraints. However, once I setup these coincidences, they always change back to fixed.
In a last ditch method, I've created 2d sketches at EVERY clamping location (yes that's alot of sketches, time and effort) and projected the circular geometry to get a center point. This has seemed to work, but is so much work, there's no way we could use it regularly.
I'm trying to figure out an animation in an assembly
I'm trying to go:
______/~~~~~~~~~~~\_______
with a low height, lifting it up at a defined slope, and running it to the slope going down
I know how to drive constraint, is there a drive sweep I could do?
I made an animation of a small prototype engine I am designing (attached as video 3) and I would like to be able to show fluid flowing in from the injector and into the cylinder, through the dumbbell valve and out the bottom, autodesk inventor does not seem to have this capability and its looking like my only option is to learn 3ds max and rebuild my animation in that.
View 7 Replies View RelatedI'm using 2011 pro. When I try to animate a positional rep in inventor studio, it complains that I don't have excel installed. (see attached image) although I do have it installed. I've put the hotfix on for excel, with no effect. I've repaired inventor and repaired excel no fix though.
View 9 Replies View RelatedIt makes no sense you cannot enter the star value when animating a constraint. Every time I run the animation, Inventor changes the inital value, and the animation is ruined.
I need a angular displacement between 80 and 20 deg.I cannot enter the "80" value, Invenotor does it.
Is there a way you can animate a constraint the way you want instead the way inventor wants???
Why do we not have the "=" (equals) constraint option in 3D Sketch mode? It seems like a very basic need for a constraint. Is there a reason why one should NOT want to have an "equal" constraint in a 3D Sketch?
View 3 Replies View RelatedAll I need to do for now is to align one part to the center axis of another part. Later I will constrain but for now I just need to see where the two meet so I can project geometry onto a draw surface. So, all I need to do is make their central axes coincide on one straight line.
I can achieve the same result by counting the various lengths but I'm hoping there's a simpler solution.
Assume a beam like the one in the picture below.
How must I configure the constraints?
The left constraints should be a "Fix constraint" on the edge(not the face) I assume.
But the right constraints must not fix all DOF's.
How can I configure the right constraint?
I can not use rectangular pattern for bolt in an assembly.
View 7 Replies View Relatedremoving the material to a part.
Lets say i applied first Brass to a part and i changed to other. I wil check the properties.
Finally i want to remove the material to same part.
I was running a simulation with success including gravity and applied loads. I was checking both stresses and deflections. Both were in line with what I was expecting. The next day I went to change a few dimensions and run it again. The stresses and deflections were significantly less than expected (I did not tweak the dimensions very much). I changed my dimensions, remeshed and ran it again. It worked fine and returned expected results. I continued in this manner tweaking the size of my box.
Finally I went for one last run.... it didn't work again. It returned the significantly less than expected results. A bit of investigating revealed that it is only applying the gravity loads during the simulation. All of the applied loads are being disregarded (however, they show up in the report as if they are being applied.) If I supress the gravity my stress and deflections return 0 values. I have tried taking my loads off and reapplying them. I have tried removing the gravity load. I have remeshed. I have inputted my loads and the gravity in different orders. I cannot get my simulation to calculate using my applied loads. It was working fine.... what happened?
I've just installed 2012 and I seem to have a problem with constraints.
The basic problem is that the SHOW CONSTRAINTS command doesn't show the constraints for geometry that clearly has them. For example, if you delete a horizontal constraint from a line and then add a horizontal constraint to the same line, the line will be constrained but the constraint will not show up.
is it possible to copy and paste parts in an assembly but also keeping any constraints set on the part?
I.e. if I had a square block constrained to a flat face of a floor, when I copy and paste the block many times I would like all the copy blocks to still be constrained to the floor.
Is there a way to get a list of constraints that exist between two parts in an assembly?
It will take forever to go through each and every constraint for one of the parts, checking the "Other Half" of each just to find all constraints between to specific parts.
I'm trying to build a c# program where I can test a simulation for a robot project I have made angle constraints in inventor and now I want to be able to send numbers to specific joint.
With the code listed below I can get all the constraints from a selected part and get the name of the specific constraints.
I find it confusing that most of the documentation is in VB so this is what I have discovered on my own, perhaps this isn't at all the way to do it.
Inventor.SelectSet selSet=asmDoc.SelectSet;
try
{
[Code].....
Trying to create a gimbal with a supporting frame, an outer square frame, and an inner square frame. when i insert the outer square frame into the supporting frame, i constrain it so that the axis of the hole i have drilled in my frame and the axis of the hole through my supporting frame are aligned, i then constrain a face of it to be a set distance from a parralel face of the supporting frame to centralise it. this works ok, and i can rotate this frame as i like. When, however i insert the inner frame and constrain the axes of the holes drilled through it to the axes of the other holes drilled through the outer frame, and two faces to be a set distance apart, it allows me to rotate my inner frame, but no longer allows me to rotate my outer frame! what have i over-constrained?
View 3 Replies View RelatedI'm using the line tool in a 2d sketch. First, I draw a polygon with the tool. Then, when I come to move one of the lines with the mouse cursor, it detaches from the other lines, and becomes a single floating line on its own.
As far as I can tell, it has nothing to do with the fly down constraint menu options, but i may have changed another option elsewhere in inventor and not have realised it.
Using "drive constraint" I would like to simulate the action of a "soft close" mechanisim on a drawer...fast movement for the first portion of travel, then slow movement for the very last portion of travel...
View 1 Replies View RelatedI have some "insert" constraints for DIN rails in holes. I've moved the holes, but the DIN rail doesn't move. The refresh button isn't "lighting up", or when it does, it does not do anything to move the rail. Is there something that's been "shut off" to keep things from moving?
View 7 Replies View RelatedAre there any C++ samples of the use of C Assembly Constraints? The syntax is so much different with VB a few real examples would be really useful.
View 2 Replies View RelatedHow do you mate two surfaces so that the item will not move any further once it makes contact with that surface? i.e a rotating cam which is designed to stop once it comes into contact with an object / surface.
View 2 Replies View RelatedSomething is strange with the constraint activity.
I'm using the constraints to assemble a project. I select the parts with the proper constraint, when "apply" is clicked the parts do not "pop" to location as they use to. I have to go up to "manage" the click "rebuild all" for the parts to move to new location.
Does Inventor (2012) have the option to view sketch constraints as a list? I feel like I am playing pictionary trying to find out what constraint is what and what it is constraining and it doesn't work that Inventor stacks anything nearby on top of each other.
I've attached a file showing what the problem is, please don't judge the model tree. I was prototyping as I went so it is messy.
Out of the blue, my IV 2012 has decided to stop showing the preview when applying contraints. I have made no changes to any options or configurations. Preview check box is checked.
I tried unchecking and rechecking it to no avail. Any thoughts on this behavior ?
2nd out of the blue issue - when I insert a part into my assy (part file is in the same folder where the assy file is located) IV decides it needs to create a sub-folder and re-saves that part to the sub-folder. I mean, WTF ? The part file is already there. Why create another version of the part in a sub-folder. And why would it just start to do this out of the blue.
Again, I have made no changes to any configurations, options, settings, templates, etc...
Why is it when I select multiple contraints for a component that I can use the delete key on the keyboard to eliminate them but when I select only a single constraint, I have to right click and select delete on the context menu. The delete key will not work on a single constraint.
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