Autoproject edges during sketch creation?

Taking a poll of the Inventor user community… How many of you have the autoproject edges for sketch creation and edit turned on? I have always left it off because the majority of the time I do not want extra edges projected into my new sketch and therefore making the new feature more dependent on previous geometry.

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Inventor 2009 Subscription Bonus Pack

Autodesk is moving towards a Microsoft approach to product releases which they are calling ‘Flexible Software Delivery’. This approach will be based on two different components available after the initial product release. Product updates like they exist now will include service packs and hotfixes. They will also have available subscription bonus packs.

These bonus packs will be available to active subscription members only via the subscription website. The bonus tools will then be rolled into the following product release. This sounds like a good way to get some good feedback on new features before they are incorporated into the entire product, beyond the beta programs which has limited participation.

According to Autodesk, AutoCAD will be the first product this new software delivery model is fully available for. Following this approach, they now have available a subscription bonus pack for Inventor 2009. The bonus pack includes the following additional functionality:

  • Drawing Manager Tools

– Arrange dimensions
– Dimension Selection Filters
– Directly open a corresponding drawing right from a part or assembly
– Refreshing drawing parameters
– Balloon snap and alignment on placement
– Project geometry works like part environment
– Edit dimension upon placement

  • Part Modeling Tools

– Create parameters on the fly when dimensioning
– Specify iFeatures normal direction
– Create iFeatures from iParts
– Apply buttons on Scale and Rotate dialogs
– Simplified loft selection through right click context menu

  • Assembly Design Tools

– Bill of Material Editor
– Shift or Control for contiguous or non-contiguous selection
– Capitalization
– Find and Replace
– Cross highlight from the BOM editor and Assembly model
– Auto Save Reminder

You can read more about the new features in Autodesk’s
official Subscription Bonus Pack PDF.

I think the ability to open an associated drawing directly from the model environment will be a real time saver. Download your copy and try it out for yourself.

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McCain, Obama – Side by Side Comparison

Check out this side by side comparison of quotes by McCain and Obama on the issues.  It also allows you to see quotes from other high profile politicians.

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Assembly constraint options

Two of the most under used and misunderstood application options are related to assembly constraints. How many times have you inherited someone else’s assembly file and spent hours trying to unravel their constraint scheme?

Enter the options, ‘constraint redundancy analysis’ and ‘constraint failure analysis’.

Constraint redundancy analysis will analyze for duplicate constraints applied within your assembly. The redundant constraints will be marked in your browser for your information. This is not considered an error, just a means to diagnose your constraints to a deeper level.


Constraint failure analysis will analyze for conflicting constraints. Normally, when this option is turned off a conflicting constraint that is applied will highlight as an error but will not show you which other constraint is it in conflict with. When this option is on, it will highlight all of the constraints that conflict with one another.


It’s important to remember that having these options turned on, especially when working with large assemblies will require Inventor to perform more checks than normal when applying constraints and will result in slightly slower performance. It is considered a best practice to turn these options on only when required. I’d like to hear your comments on how you use these options.

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