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Awsome Inventor performance with “Quick File Open” option

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If you haven’t seen Inventor 2011 yet (or even if you have), you really should check out this new option when working on large assemblies.  Rather than waiting around for your large assembly to open every morning, it can now be cached and waiting for you.  The “Quick File Open” option is on the Files tab in Inventor’s Application options.  It can be set to cache the last assembly you opened, or all of the files related to a particular top level assembly.  The option you pick really depends on your personal work flow.  If you typically work on many design tasks for one top level project the second option might be best for you.

The “Quick File Open” option in Inventor 2011.

Contributed by Ben of the Tata Technologies CAD Geeks

Flip the switch to 3 gig with Inventor

How can I improve capacity for large assemblies or drawings?

Please note that Windows allocates Virtual memory to an application. This is the Address Space available to any application. The size of this Address space is a function of the design of the operating system, not the physical memory installed on the system. More physical memory will increase performance, but not address space. Inventor, like any Windows application, is limited by the address space allocated to it by the Windows Operating System. Whatever the limit, Inventor users may run into it. A warning will be issued when you reach 80% of the available address space. It is advisable to save your work as soon as possible. When windows issues a message that a memory request has been denied, Inventor is no longer intact.At the 80% warning, exit Inventor saving your results. Restart Inventor and re-load your work. This removes memory allocations that are no longer needed because that work has been accomplished.

In a 32-bit computer (as Windows XP is) there is 4GB of memory address space.

2GB of this address space is reserved for the system. 2GB is reserved for the applications. When you add the /3GB switch to the boot.ini, it is taking 1GB of available address space reserved for the OS and giving it to the applications.

This can provide better performance for memory intensive programs like Inventor. However, there could be potential side-effects for the system of course. But nothing too much to worry about, or otherwise it would never be recommended. The boot.ini file is how you enable the option for the 3GB switch. It allows the 2GB that is dedicated to the system to give up 1GB and add it to the 2GB that is dedicated to the applications.

See the example boot.ini file below:
[boot loader]

[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS=”Microsoft Windows XP Professional” /fastdetect /NoExecute=OptIn

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS=”Microsoft Windows XP Professional /3GB Switch” /3GB /fastdetect

****Before changing your boot.ini file save a backup****

Follow the video on how to do this remember once you have made the change to your boot file you must restart your system. When your system reboots you will have a choice to select the 3 gig environment. Launch Inventor, go to the Help pull down menu and select about Autodesk Inventor to confirm Inventor has recognized the switch. Information provided from a AUGI Forum.

Check it out

Submitted by Dave of the INCAT CAD Geeks

If you like the idea of substitutes, what better than automatic substitutes with Inventor 2009

Digging a little deeper into those folders I traditional over look that come with your Inventor media. I was surprised with a ton of great functionality. The one near and dear to my heart is Assembly Tools that contains many great enhancements but my favorite is the ability to automatically create substitutions inside of assembly files. If you do a standard load you will be able to find this information at the following path. Please poke around at the other great features included for all areas of Inventor. It would be great to hear back on what you like and don’t like also. C:\Program Files\Autodesk\Inventor 2009\SDK\UserTools.

Check out my video of how to do this.

Submitted by Dave of the INCAT CAD Geeks

View Representations or Level of Detail What’s Right For You?

You can save both types of representation with a name and activate it for modeling tasks or select it for creating drawings, presentations, and derived assemblies. So which one makes sense. If working in large assemblies LOD has the advantage. This allows you to suppress components to save memory the negative is when adding a component to your assembly it automatically gets added to all LOD you have created. View Representations takes over there allowing you to lock each representation created so when adding components they can be added to the master without affecting the others but has no memory saving option. In a perfect world LOD with ability to lock representation would be great.

Check out my video of how to do this.

Submitted by Dave of the INCAT CAD Geeks

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