AutoCAD Inventor :: Surface Contact With Initial Gap?
Feb 12, 2013
I'm working on a FEA of a climbing carabiner (oval-shaped; one side of the oval is a gate which opens and closes allowing a rope into the carabiner).
The gate of the 'biner has a hook which attaches to the "nose" of mainbody/biner. However, this hook does not engage until the biner slightly deforms.
I've attempted to use the separation/no sliding contact option, but the solver behaves as if there is no contact occuring. The nose simply passes right through the gate hook.
The initial gap of the system is about 0.040". That means the nose must deflect 0.040" before the contact surface comes into play.
When you create your own template part file and change the "Initial View Extents" setting in Document Settings on the Modelling Tab. Does this affect the behavior of the initial view extents when re-opening a part file created from this template?
FYI - I recently created a new template part file so that the sketch gridline spacing was more relevant to the size of parts I create. I like to use gridlines while in sketch mode because it is a good visual indicator that I'm in sketch mode. On opening a new part file that referenced to my new template, I noticed that the initial view extents meant only a couple of gridlines were visible due to the zoom level. I therefore tweaked my template file by increasing the initial view extents by a factor of 4 (400mm x 200mm).
The problem now is when opening a part file created from this template, the zoom level seems to snap to the customised view extents and not to the physical extents of the part. Right clicking the View Cube and re-setting the "Fit to View" has no effect. This feature seems broken now that I use modified initial view extents.
After creating a solid and made some cutting, notching etc. the finished length is not the same as the initial extruded solid. so to get the length of the final solid ,
1. I would project geometry , and get the extreme end to get the finish length,this reference dim is now shown in parameter,
2. Go to parameter and change this ref dim name to "length" ,
3. Check the export box ,
4. Right click this ref dim to change the custom property format
5. Where i would uncheck the "units string" box
All these steps to extract the length of a single part , so just imagine if my assembly consist of 50 parts, i would do this 50 times! and usually i have almost a hundred assembly to work everytime.
Why is a part in an assembly not enabled for contact set? on right click the Contact Set option is grayed out, but that part was in contact set for another part already. i made some changes in the part, maybe that's the reason, is it?
Attached is a screen snipe of design that has a hydraulic cylinder in it. I've created contact sets for the rod and the cylinder however they keep breaking appart especially when I insert them into an assembly and drive to drive the constraints in a positional representation.
i drew a cylindrical cam using the inventor tool then i also drew the actuator ( a simply plate rounded on top) but when i add the contact tangency link between the two surfaces and i move the cam , the two objects interpenetrate!
I am using Invertor Dynamic Simulation and I need to know the 2D contact position data to be displayed in the output grapher (i.e. the x,y,z coordinates). Only the forces are computed in the output grapher. I’ve tried using the “trace” feature but this will not allow me trace the 2D contact point. It would even benefit me to know the angle of the normal force relative to the absolute frame.
I am trying to constrain motion for the following design:
-Object constrained to vertical motion (a counterweight). -Object constrained to horizontal motion along a track (a slider).
A cable runs from the counterweight upward, makes a 180-degree turn around a pulley, runs back down, makes a 90-degree turn around another pulley, and connects to the slider.
When the weight moves down 10 cm, the slider needs to move laterally 10 cm.I don't care about modelling the cable, but I do need to have the slider move as the weight moves.
I will also need to model a case with a more complicated pulley, where when the weight moves down 10cm the slider moves laterally 5cm (again I don't care about the cable, just the relative motion).
Is there a way I can do this without creating a series of planes and cylinders and using rotation - translation constraints to link the motion of the weight to the slider?
I set the two v blocks were fixed and bonded contact type among three of them. The program said it was divided to three separated parts but i wouldn't expected that.
I'm trying to set up a sliding/no separation contact within and assembly for FEA purposes. I want to eliminate all moments (torque) between two pieces while still allowing one to impart force on another. When evaluating constraints, I'm seeing moments are infect being passed through. The guide mentions this contact for planer and cylindrical objects but makes no reference to spherical surfaces.
Is it possible to accomplish this type of a contact on spherical surfaces?
Can an adaptive part (non involved in the drive constraint animation) bother the contact solver?
I have an assembly, with only one adaptive part, i have activate contact set for other 3 parts (not the adaptive part), activated contact solver and drive the constraints, but in the animation contact solver doesn't work at all.
So, i have tried to move manually the assembly (suppressing angular drive constraint) and the contact solver works fine.If i suppress the adaptive part the driving constraint and contact solver work perfect.
So i wonder... adaptive part can annoying the contact solver functionality?
how I can add more volume to curved object surface? Say for example I have a plastic cup.You can think of this as cylinder object ,which was the shelled out using the shell tool and then had its base sealed.
Now at certain parts, I would like to increase the thickness and then blend it the rest of the surface(may be chamfer its edges) .
At certain parts on curved surface I would like to add an extra mm, I think if the surface was flat I would just sketch the shape, then extrude it by few mm and smooth the edges by doing a chamfer
But how can this be done on surface that is curved? Or multi curved for edges?
I'm designing a press for a skateboard similar to: Rib Press
I have the board modeled: (see attached)
Now what i want to do is generate those ribs as seen in the picture.
I tried creating a block that intersected with the board and tried to split the rib at the surface, but to no avail. I think the issue has something to do with the curve of the board in two directions, but i can't seem to get it right.
if you are having trouble visualizing what i'm asking about, look at this. I want to be able to figure out the exact shape of those center ribs to print and eventually cut out of wood.
It is not possible forme to add the fil because it is to large 1.8MB how can I poste then I like to know if it is possible to extend the button flat surface diameter ø12.5 up to the shaped surface. The result should be a total solid block whit a surface shaped hole.
File last up-date with Autodesk Inventor Professional 2013
I am a beginner when a extrude a feature and select a part surface for new sketch now i want is to offset that surface but i can,t there is + sign with mouse icon and something like fully constrained is written in down the window.
I'm trying to run a simulation of 2 bevel gears without using the transitional/rotation constraint, but using the contact between the surfaces to simulate the rotation of the gears - basically I have an L-shaped shaft running through both centers and want to have the upper gear grounded, make the lateral gear rotate around its own axis - the goal is simply to see the contact between the gears make the side gear rotate around the vertical part of the l-shaped shaft, due to the contact forces.
We received a surface model from a vendor that I have patched up as best I can, it still has one hole that I can find that I haven't been able to fill. Ideally we would like to have a solid model, but I'm running out of time to get this done and the surface model we have would be good enough for our purposes IF I can get the yellow surface tangent lines to turn off or change their color to black.
I've attached a jpg of the surface model with the yellow lines and uploaded the model here: [URL].....
Drawings are only plotting the first viewport inserted into paperspace, and will only plot live paperspace work if there are no viewports at all... this is a new problem, but has hit an entire set of drawings!
When opening a drawing, since I've installed 2013, I don't have an initial view or preview of the drawings I'm selecting. In the open box, the "Initial View" or "Select initial view is unchecked and won't let me put a check mark in so I can review the drawing before opening.
After installing all products within Building Design Suite Ultimate 2013 and/or Infrastructure Design Suite Ultimate 2013 I try to open AutoCAD 2013 and get the attached screen. It just grinds and try to open but always shows "not responding". I've read posts that suggest uninstalling and re-installing. I've done this several times. I've used the Microsoft Fix-It engine to completely erase from the PC. I have even just installed the AutoCAD portion and it will not open. Each time I reinstall it asks me to supply all proper credentials, product code, etc. It shows green check marks so I know my codes are correct.
I've tried opening other programs and the only successful one is Revit. Am I to point the start-up of the programs to the licenses or something.
The Select Initial view checkbox in the standard file open dialogue has moved in 2013 from just above the File Name label to the file list window. Aside from the fact that it looks totally out of place design wise I find it obscures the file list. A way to revert to the previous behavior, or, even better, get rid of it all together because I never use it.
We are currently working on a big project which contains hundreds of drawings. We're using the sheet set & are very happy with with it. I have one question: How can you change the initial state of the sheet set manager. When I open my sheet set, some subsets are always expanded. I would like my sheet set to close all subset when I initially open the sheet set.
I recently purchased AutoCAD Civil 3D 2013 and all of a sudden when I select "File", and "Open", the dialog box from which I am supposed to select a drawing file has a small "Initial View" box with a small check box to "Select Initial View". This box seems docked to the right side of the "Select File" dialog box but I am unable to select the check box. It seems to do nothing. Is this a glitch?
I already have all my settings the way that I want the users to see them when starting AutoCAD 2010 for the first time. But when you first start up AutoCAD 2010 it brings up the Initial Setup screen. I was wondering if there was a way to get that not to display but just open AutoCAD right away.
When I start CS4 (32bit) Extended it says Stonehenge and "DEV" at the end. Is this some sort of pre-release version? Or, am I running the proper production version that I purchased?
After opening CS4 (32bit) Extended most of the file menu is dimmed. I cannot even do a File < Open. I can use bridge to open a file and this problem clears up for subsequent File menu issues. What is going on here?
Turning on and off the eye in the layers pallet has no effect on the image until I click on image. Is this a new feature? If it is, it is a crazy new feature. How do you turn it off?
3rd party plug-ins are problematic in the 32 bit version. In the 64 bit version they just show up. I guess that is to be expected though.
