AutoCAD Inventor :: Mass Properties For Parts And Assemblies
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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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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Oct 3, 2011
I am working in an Inventor Assembly .iam, I have about 250 fasteners (screws) that are constrained to a flat washer and lock washer. I would like to put them in as a single unit (sub assembly if you will) and then promote or explode them in the top level so that my bom has 250 screws, 250 washers, and 250 lock washers all at the same level, not associated to one another except thru the constraints that were entered in the original assembly. I have tried Promote but that doesn't work because it removes the washers from the original file and I end up with only 1 instance of the assembly. Am I approaching this incorrectly? Is there a better way? I run across this scenario with different components quite often.
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Aug 10, 2011
Never seen this before, but I'm having an issue with mass incorrectly reporting in high level assemblies.
See the attached jpgs. The bracket reports a mass of 29.7 kg when opened on its own, but when checked in the browser of the next level up, its mass is reported (incorrectly) as 23.1 kg. A little investigation has revealed that the error is in the stiffening webs (which have been modelled as a single ipt). Again, if the webs are opened on their own, the correct mass is reported, but if the mass is queried in the browser of the sub-assembly, an incorrect value is shown.
In this case, it is not that significant, but if Inventor cannot be relied upon to report correct masses in higher level assemblies, this is a real worry.
Running Inventor 2009.
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Jul 10, 2012
I have an assembly with a lot of purchased parts. I need to create a buy out list for purchasing. I've done this many times in the past and have a template set up for this purpose.
So now the problem, In this assembly, I have subassemblies showing up on my parts only parts list.
One of the subassemblies cinsists of two purchased parts. Both parts are set to purchased in the Bill of materials. If I do a parts only list on this assembly, it works as expected, showing two purchased parts. However, if I put that assembly into a higher level assembly, A parts only parts list shows the assembly instead of the individual parts.
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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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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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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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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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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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Jan 25, 2010
Is there a way to get a summary row in the parts list to show a total of the 'mass' column?
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Oct 16, 2012
I'm having a problem highlighting parts within a sub assembly. A simple structure to demonstarte this issue would be:
TopLevel.iam
|
SubAssy.iam
|
ChildPart1.ipt
ChildPart2.ipt
Using this structure I wish to highligh ChildPart1.ipt, howver my vba macro code below doesn't seem to work (nothing happens):
Public Sub Highlight()
Dim SubAssy As Inventor.AssemblyDocument
Dim ChildPart1 As Inventor.ComponentOccurrence
[Code].....
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Apr 3, 2009
how the file structure works and how to link parts (ipt) and assemblies (iam) to each other. I converted a large file from Mechanical desktop to inventor which was a two day process. All parts and assemblies for the main assembly were dumped into one directory. I would like to move all the part files to one location and the assembly files (sub assemblies) to another location and then tell inventor to go there and pick the items from those two locations. I have set up the project telling inventor where to go and look. I moved all the items out of the original directory and now when I open the main model assembly I have to resolve the link to each part individually. This will take forever, is there a way to have inventor go and look for the parts and assemblies without me having to resolve each one?
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Oct 21, 2013
I just installed Inventor 2014 today and I can't drag a part from the browser of one assembly into another open assembly.
It changes the cursor when I do it, but it never actually drops the model into the new assembly.
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May 31, 2012
I have one main assembly with two seperate sub assemblies in it. I need to make two drawings showing the installation of both sub assemblies (one drawing for each). I need to insert views of the main assembly into each drawing, showing the overall view of the install, but I need the balloons to represent the sub assembly BOM.
I tried making the sub assembly I'm not currently showing, Phantom, and I have a design view set up to hide the information of the sub that is not part of the current drawing. That seems to work fine for the first drawing, but when I change the BOM (of the main assembly) to suit the next drawing, it affects the first drawing. How can I use one main BOM to suit two different drawings, showing only certain components? Or can I "tell" the balloons which BOM to reference? (I have the BOM of the sub assemblies set up the way I want them as well)
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Jan 11, 2012
i placed an ilogic component (wich i use as a template to later change dimentions) into an assembly file after changing dimentions i placed the same "template" ilogic component into the assembly but when i want to change something on the second component it also changes the first one and that only happens with only one feature of the component the other features work fine.
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Mar 19, 2013
I'm working on a project with three small and very similar vessels. I'm done with the first vessel and I want to re-use this assembly when I start to design the next one. But vessel number two will require some changes to the parts (nozzle location and so on)
My question is, how do I re-use my assemblies and parts so that I can make changes to them without it affecting my original parts and assemblies?
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Feb 23, 2012
How do I scale parts and assemblies in Inventor. I"d like to be able to change the size of parts, sub-assemblies and full assemblies up and down by a uniform amount. Ideally, I'd be able to increase or decrease the size of a part or assembly in all three axis or only in one at a time.
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Mar 9, 2012
I am puttilng parts together on an assembly and right now when I move them they stop when they hit. how do I turn this off?
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Aug 23, 2012
Is it possible to rescale whole assemblies after they are created?
Say I have three serially linked worm drives that fit inside a cube 50 cm on a side, can I take the file and reset the dimensions to where it could fit inside a 1 cm cube?
Does it matter how complex the assemblies are? Could an entire car be rescaled to fit inside, say, a 1 mm cube? Never mind that a normal internal combustion engine that small might not work at all because of the air viscosity at that scale--it's not real.
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Oct 30, 2008
I have some BOM parts and an assembly that are read only and I need to be able to enter information in the bill of materials under the status column and the comments column. The BOM parts are i-parts and the assembly is an i-assembly. Is there a way to set them to read or is this a limitation?
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Aug 1, 2012
Is there a way to display the mass of a selection of parts through iProperties ? Similarly to the way to show the mass of a single part but but selecting multiple parts and getting their collective mass ?
Windows 7 HP Z400, Intel Xeon W3550 3.07GHz
12.0GB RAM, ATI FirePro V4800 (FireGL)
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Jul 11, 2012
I have a issue merging multiple parts into one assembly. When i do the constrains the parts are able to move but the pieces break part. I need to be able to move the whole assembly with all parts together without them breaking apart.
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Jul 11, 2012
I can't move the assembly I'm building around without the parts moving out of place from where there constrained too. I manly use mate and flush constrains. I have to build a layout of a room later on with these assemblies in it and they must be able to be positioned where they need to be. How do you keep your constrain parts from moving out of place?
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Nov 13, 2012
We have thousands of parts & assemblies, and want to create a thumbnail image of each for use with our production software. Unfortunately task scheduler only exports to solid models, not images. How to achieve this via macros, VB or iLogic. The process would go something like:
1) open (each) file
2) turn 'all work features off' (not essential but it would be nice so work planes don't show up in the thumbnail)
3) go to 'home view'
4) zoom to extents or zoom all
5) 'save copy as' to a set location (not same location as part or assy) with file name of "<PartNumber>.png" (not same as original filename)
6) turn 'all work features on' (if we managed to turn them off)
7) close (and repeat process for the remaining parts & assy's).
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Nov 14, 2011
Is it possible to replace sub assemblies using ilogic - I can only see a link to replace parts?
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Jul 25, 2013
Any way to create a parametric Parts List containing subassemblies, where the subs are listed, by name/item number, in colum format, and qty's are tabulated accross rows. (see attached as an example). If the same part number occurs in multiple subs, the part is only listed once, but the quantity for each sub would be noted. The pdf attached had to be done manually, which somewhat defeats the purpose of having software like Inventor.
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Apr 20, 2012
How to export assemblies and/or parts from inventor to SolidEdge St4 and have the part remain editable in solidedge ST.
We are trying to send a .ipt to a designer that uses SolidEdge ST4. She can open the file and has no issues translating however it remains a dumb solid.
Is it possible to have it be parametric and keep the features?
Inventor has a feature recognition tool that I have use with much success I hope ST4 has something similiar.
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Oct 23, 2012
Need naming my parts and assemblies so i wont have trouble later finding I have numbers or names that get repeated. Need naming or diving my parts and assemblies.?
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