from Civil to Inventor

The Autodesk enthusiast exile

Inventor – iFeatures provide a quick fix

This weekend I was up to my neck in a problem with having to rebuild a fast and dirty project.  It was built for pretty only.  The problem was that a weekend build did not cover enough time to do the job right. Shortcuts lead to failures in Inventor.

I had constrained latches of a door in the door assembly, and then reversed my build and snapped the cut edges off the latch in the door part, and cut out the hole.  It was fast and I didn’t need solid build, just fast.  Hmmm, sounds familiar.  Don’t have time to do it right, but always have time to do it over….  And do it over you will.

I started the job with a skeleton containing the global resources, and the overall shell.  This worked like  champ.  Eventually as I began to run out of time, I started to cut corners.  Portions of the projected geometry began to fail for one reason or another (because of the shortcuts).  Everything was fine until I had to make a change.

So was tired of recreating my ‘shortcut’ doors, and decided to get a better shortcut.  The latch plate had to recut for each change. 

image

Use the iFeature to reduce repetitive steps

Rather than create it for the third time (eventually even I learn from my mistakes), I created an iFeature.  This part however had no geometry and was just the solid model.  Fine.  I created a cut extrusion from sketched cut edges, an sent it out in all directions.

Continue reading

October 7, 2009 Posted by | 2010, iFeatures, Inventor | , , , , , , , , | Leave a comment

Civil 3D – Part Builder Part 2

Today we continue from where we left off in Part Builder Part 1.

Before we proceed, I’d like to note that a wing wall may not be everyone’s biggest desire.  I needed it, and I felt that it would proved a fairly well rounded view of things. It needs equations, and gets worked laterally instead of vertically, which make it more of a challenge.

Sitting on the axis of 2 different careers I can see this type of workflow from 2 different perspectives, and want to provide everyone with a bit more information that may have been unavailable.

  • The 3D modelers understand the construction methods.  What they need to understand is the limitations stopping them from working naturally through this process.
  • The Civil 3D techs know about odd application limitations, but need to understand how the construction methods, dependencies, and calculations work.

If you don’t get something out of this session, it will be because you already had a good working knowledge of Part Builder, or you failed to post your questions here.

The 3d Model (which is what you came for, right?) is created using the following procedures:

Create a Work Plane, Create Geometry, Add Dimensions, Add Constraints, Create Profile, Modify Dimensions, Create Modifier, and Configure Parameters.  We will discuss the first six today.

Open the part for the last session, named Wingwall Sloped.

image

Create a Work Plane

Let’s begin by creating the Top Work Plane.  I always like to get my Top plane in first.  Either I am working on it, or visually referencing it.

Under Modeling, Right Click the Work Planes folder and select ‘Add Work Plane…’

image

Continue reading

November 25, 2008 Posted by | Part Builder, Pipes | , , , , , , , , , , | 7 Comments