AutoCAD Inventor :: Physical / Mass Properties
Nov 8, 2011
I have recently made a bucket for chain (linked) and was looking to put the chain in the bucket for visual purposes and to see if the capacity of the bucket is correct.
I can get the chain linked together, however when rotated round it passes through another piece of chain.
Is there a way in inventor to tell a part/assembly of it’s physical/mass properties? I know you can make something mild steel and get weight etc, however if not constrained it still passes through as if it’s a ghost.
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Oct 21, 2013
I have a .iam and .idw that i copied/designed from vault. The .idw has a sketched symbol that has a text box with the mass property. When update mass is applied the mass property in the text box does not. I ran into this once before and got it to work by re-inserting the symbol into the .idw but I can't get it to work. The orginal that was copied from works fine.
IV2013
Vault Collaboration 2013
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Jun 29, 2010
Two questions.
Is there a way to add new materials to physical properties?
Is there a cloud feature in Inventor for drawings, or is that something that can only be done in Autocad Mechanical and Mechanical Desktop?
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Aug 30, 2011
how I can update the physical properties for a part or assembly, from a drawing? My drawing template is showing the total weight for the current part/assembly, and I would love if Inventor could update this using iLogic, so I don't get the "N/A" value all the time.
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Oct 17, 2012
I have some issues with the notation for physical properties in the Inventor 2013 material editor.
Instead of displaying the obvious first choice metric SI notation kg/m^3 or something similar it display a self made? and awkward N*s^2/mm^4. I don't want this notation. How can I change to something more user friendly? It can be a bit hard to distinguish if a material have 0.00000000001 N*s^2/mm^4 or 0.0000000001 N*s^2/mm^4.
The document properties "units" folder have mm, seconds, degree and kilogram as default.
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May 10, 2012
I'm trying to add some material properties to a STP or IGES file I've received from a customer (in Inventor 2011). Is there any way to add a density for example, so I can obtain the mass of the model? I've tried doing it through the iProperties menu but it's not giving me a mass.
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Aug 23, 2012
Al my projects, settings and templates use the Metric system.
When i open the material physical properties i see the Imperial System.
How can i change this ?
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Jul 9, 2012
I'm having trouble getting mass properties of an assembly to display in an .idw. I've tried it 2 diffent ways, custom properties-model "Totalmass" where I type the mass and physical properties-model "mass" where it's automatic with update.. Nothing shows, not even N/A, but in another idw (different assembly) it works. Both text boxes are saved within a sketch that is part of a template. Both idw's use the same template. If I place text on the drawing it self it works.
IV 2012
Vault Collaboration 2012
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Nov 21, 2013
To get net weight of my parts i have one template that uses the volume x density and to get the gross weight I use the real dimensions of the item (a rectangular plate without any cutting, e.g.) and then calculate x density, this way i can get both weights, and how in the most of times I need the gross, I overwrite the MASS PROPERTIES of each part with my gross weight. It works fine because all the assemblies sum the MASS of each part (that is over writed by the gross weight).
Now my problem:
In many cases when I need to use the same part many times with just a few of different details, instead of copy the part and change it, I use the same part, and in the IAM I use one feature to make this part different (like a chamber, small extrudes or even holes). But now I realized when I do this (feature in the IAM), it doesn't sum all the MASS properties of each individual part anymore ... it recalculate all the mass with the new IAM volume (with all the features)...so, in my BOM I got all the parts with the correct gross weight, but my total mass comes with the NET weight (and considering that I need the GROSS, i got the wrong mass).
Is there a way to change the way that inventor overwrite this mass in the assemblies ? with Ilogic, or even some Inventor's option ?
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Aug 9, 2012
Is there any way to force an update of mass property values of a component from within an iLogic routine?
I am trying to produce a calibration chart showing the volumes of an irregular shaped object by taking incremental slices off the component and accessing the "volume" of the remaining portion, then writing the the results to an external file - All from within a "For - Next" loop.
The main routine works O.K. but the resultant chart only shows the original starting volume for each slice instead of the required reducing volumes.
I am a novice with iLogic and can only assume that I must somehow "update" the mass properties of the sliced object before reading its new volume on each pass.
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Jun 15, 2012
I initially entered a few overrides for mass on some parts that I have included in a large assembly. However I now want the calculated values of mass to be used and not the overridden values. I go to the part file, erase my value, and click update and it now shows the calculated mass for that part. However in the assembly it still shows the initial overridden value even though I have tried updating it. How do I use the calculated mass values in my assembly?
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Dec 19, 2011
How to find the Mass Properties of a Part?I'm not able to find how to do it.
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Oct 26, 2011
I am currently building an Iassembly and I keep running into this message whenever I go to save one of Iassembly members
It states " Do you want to calculate the mass properties for the master level of detail? if you select 'NO' Inventor will calculate the mass property for the currently active level of detail."
now when I go ahead and select yes or no, it goes ahead and places 4 BOM columns in my table with Default and Reference. What exactly does this mean? I keep deleting them and they keep coming back constantly adding more and more columns to my ipart table.
Since I am constantly suppresing and unsuppressing, adding and deleting components based on the configuration, I have to always be on another level of detail other the master detail correct?
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Feb 28, 2013
I am having trouble with mass prop exporting to sheemetal parts. It did work for 2012 now its not happening iv2013. service pak 1.1
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Mar 2, 2012
how to determine the mass properties of bolt.
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Jul 19, 2012
I have tried just about everything and the mass properties center point of gravity is coming out incorrect.
I have created a box 300x300x300 with the center of the box at 0,0,0 (for testing the cg) . The result I get is not 0,0,0 one of the values always comes out to be not zero, depending on the orientation of the box. Is this a bug?
Dim cg As Point3d = T.MassProperties.CentroidMsgBox(cg.X & vbCr & cg.Y & vbCr & cg.Z)
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Jan 3, 2013
Is there a way to paste the results of a mass properties query to the drawing rather than to a file?
I have a complex shape that I am analyzing and would like the properties as part of the drawing for refence purposes.
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Oct 3, 2011
I've been looking for a solution to remove the unit string ie Lbs, g, kg from the value given from a 'Mass' value in a text string.
As you may all know, creating text and having a 'physical property - mass' value...the unit string is there...
Lots of people on here have the problem...no-one has got a solution.
Until now...
Basically...open the part you need to get the mass property of in your text string.
Follow the instructions on this webpage...this is the first part...
[URL]
Basically, this creates a Mass property value in the parameters table that you can call on as a text parameter.
It's similar to the custom iproperty model - mass but NOT the same.
Once you have done this, you can go to the drawing of the part and create a text string in the drawing and call it up as shown in this procedure. BUT it still has the unit string.
Here's the best bit that you want to know...
To get RID of the unit string...open up the part again from the drawing...click on the parameter icon...find the user parameter...in the Nominal value column, right click on the value and you get a pop-up that gives you 3 options...
Custom Property Format, Make Multi Value & Delete Parameter.
Click on Custom Property Format.
The pop-up window comes up...showing you the property type...in my case...the 4 left columns read Text, g (grams), Format & Precision...
On the right hand side I have a Preview of the text...then 3 check boxes...Units string, Leading Zero's, Trailing Zero's.
Units string is checked.
Uncheck it.
Close it...Save your part...go back to the drawing and hey presto!...the text now shows the weight you require as a straight value...no units!
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Oct 12, 2011
Currently I am using I-logic and a form. I have an assembly that I am pushing a volume from a part to the main assembly. The volume updates in the part fine. The issue is with the form is not updating when the file parameter updates. If I exit the form and run the rule manually then the form updates. how to update the form at the same time?
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Dec 13, 2012
We recently moved from Inventor 2010 to 2013. Since then we have been having alot of lag problems. One major problem we have found that is giving us lag is our RAM usage. Inventor continually steals more and more ram until its starts to lag out. When I open a large assembly inventor goes from useing 1.2 GB to 4 GB of ram. When I close the assembly the RAM usage stays at 4 GB. If I open another assembly it just builds onto that and can go up to 6 GB before it starts lagging badly. Closing inventor dumps the physical memory.
System:
windows enterprise (no service pack) 7-64 bit
intel(r) Xeon(r) CPU (2 processors)
9 GB RAM
Nvidia Quadro FX 4800 graphics card
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Nov 2, 2013
When I duplicate the Material in the Material Browser all appearance and Physical properties are duplicated too.
So I must accept or assign the new unique names for appearance and Physical purposes of Material.
In my case I need, for example, the same Material with different appearance, for example knurled and regular.
I cannot save the new Material with existing Physical properties name and it makes unwanted copies like Steel(1), Steel(2) in Assets.
After I made a copy I can reassign the Physical properties back to existing but it takes a time of replacing assets and deleting unwanted copies.
Is it possible to make a copy within the same Physical Assets?
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Apr 27, 2012
How do I set a constraint where 2 parts are attached to each other but do not phase through. For example if I have a door in a door frame, how do I add a constraint where the door can swing on it's hinges but get stopped by the door frame.
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Oct 4, 2012
Inventor seems to do lots to allow for simulated appearance textures. However, how does one use actual physical textures, e.g. for a plastic part? I need one surface of the plastic part to be very rough/bumpy, another to be slightly rough/bumpy, and another to remain smooth/untouched.
Let me be forthright and say I have no background here in textures/plastics/molds etc.,
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Oct 25, 2010
I want to set up my drawings so that the title block displays properties from the model. I want to set this up so there will be drawing properties to extract into Vault. So I want to know what other Inventor and Vault users are doing to get model properties into Inventor drawings: Using model properties in the title block and nothing to extract in Vault or Copy model properties so Vault has data to extract.
I want to know what the best in class practice is? What are others doing? I do not want to use iLogic I was out of the box Inventor functionality.
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Nov 20, 2011
How can I see the mass of a solid, or if it's not possible, at least the volume.
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Sep 21, 2013
I was checking my prints and noticed that the mass for the assembly was not shown correctly. The mass for each component is correct, but the mass for the assembly is less than the total mass of the parts..... how can that be?
Watch this video. The mass for my assembly is reported from iProperties as 10 lbs, but the mass for one of the parts is 60lbs. I would expect the mass for the assembly to be at least 60 lbs, but it is not. I tried a "Rebuild All" and an "Update Mass" on my assembly, but that did not fix it (30 sec mark in the video).
This assembly is part of a much larger assembly (around 35,000 parts). There are several more assemblies doing this and I need to get the mass correct.
I am using 2013 x64, SP2.
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Jun 5, 2013
I have an assembly that i need to know the mass of, easy enough, however the assembly needs to be weighed without some of the parts in it. I hought i could simply uncheck "enabled" of the unwanted parts and re check the mass, however it does not change. Any solution besides adding the wanted parts individually?
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Aug 23, 2012
have one assy comprising of a valve, made in steel, an actuator made in aluminum, total weight combined is 36 kg.
I make this assy a derived ipt.. i have tried all the output options, single solid, multy solid and the weight is not the same.. since its a new ipt has its own material, ok makes sense.. .. So i use composite, i get the correct weight (yay), but now i cant turn the visibility off on the 2d drawing, in certain pipe spool view representations.
What is the correct procedure for turning multi material assys into an ipt.. to get the correct weights and get the drawings to work properly?
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Jul 3, 2013
How to set the mass calculation accuracy to 'Very High' when doing calculations in iLogic.
I asked for the iLogic equivalent to the VBA term:
' Set the accuracy to VeryHigh.
oMassProps.Accuracy = k_VeryHigh
and was provided with:
oMassProps.Accuracy = 24580 'k_VeryHigh=24580
However, I believe that the value 24580 is actually equivalent to k_Medium. Confirm the iLogic equivalent value of k_VeryHigh.
Original post: [URL].......
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Nov 16, 2012
In assembly file - BOM - mass property, parts with the same name (part number) i get "VARIES"..Parts have a little bit different mass - 0,167kg and 0,168kg. I do not want to have different part number.
So, i'm going to do something like this in iLogic :
iProperties.MassOfComponent("fi_N1:1")=Round(iProperties.MassOfComponent("fi_N1:1"),1)
it works but is there any way to do it for all parts (hundreds) automagically in the loop (iLogic or VB) ?
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Nov 26, 2012
I have added the mass properties and I do not want the lbmass behind it. How do I get rid of it?
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