Last week some one on the “Autodesk Inventor customization” forum asked the following:
“I have this code. It tends to work ok but I'm looking to improve the efficiency of the coding for future endeavours. I'm want to make a method for traversing the assembly and sub's so that it can be used over and over for all various traversing code I need to write.”
While writing iLogic rules I find my self often in the situation that I need to find a object in a list. Often I can use a standard Inventor api functions. But in some cases they do not work or the function just does not exists. For example I have the following situation. While generating drawings with our product configurator. An iLogic rule adds dimensions to an idw with many sheets. Ofcourse in that ILogic rule I need to select the correct sheet (in a list of sheets).
This is the last post in a sequence. In the first post of the sequence I discovered that it isn’t possible to assign names to faces in an assembly. I wanted that function therefore I decided to improve Logic. In this last post I will put it all together. And make it possible to create, view and use named faces of assemblies in a drawing.
In my previous post I showed how to create your own iLogic function “GetProxyIntent()”. With that function it’s possible to get curves from geometry in an assembly and create an intent for it. But as I mentioned to have a good workflow, we are still missing some tools.
In my previous post I discovered that it’s impossible to name geometry in an assembly. That also means that I can’t create dimensions from geometry in a assembly. There for I need a function that gets curves from geometry in a assembly and create an intent for it. With that i can create dimensions on an assembly drawing
At my job dimensions, on drawings, often get detached after and update by our configurator. One of the solutions would be creating the dimensions after the configurator finished. But creating dimensions with the Inventor API is difficult. Last November we upgraded to Inventor 2021 and I did read about the new iLogic functions. Last week I did have time to dive deeper in those new iLogic functions. This blog is about what I found.
I’ve recently seen several questions from people looking to save or export files automatically. Questions like “How to perform ‘save a copy as’ PDF for a list of Inventor drawings from an excel?” and “Automate iPart flat pattern export to DXF”. That is why I wrote this post, explaining how you can write your own iLogic export rules.
In some cases, you want to have a rule that is triggered by the “Before Save” event trigger. For example, to check if the iProperty “Part number” was set. You may get unexpected or unwanted results when you save an assembly with lots of parts that are changed. You could end up with many message boxes. One for each part that gets saved in the assembly.
Have you ever wanted assign specific profiles in your flat pattern to a custom layer before exporting them to DXF? I have been working on updating an Inventor add-on which we use at work. The tool exports sheet metal flat patterns to our CAM software.
If you have read any of my blogs post before, you’ll know that I like to challenge myself to solve other Inventor user’s problems. I usually find these problems on the Inventor Customization Forum. A while back, I came across an interesting problem. This user wanted to change the iProperties of a part, based on it’s thickness and material.
The other day I had a look at the “Inventor Ideas” forum. I came a cross the following topic “Show Changed Dimensions when Opening Drawings”. (link) Last week someone requested this function in inventor but as it turns out that exactly the same function was also requested in 2017. (link) But it is still “Gathering Support”. Personally I never needed this but I can see that it could be useful in some situations.
At the company that I work for, we make products that are almost entirely composed of sheet metal parts. We cut and bend our products ourselves, we export our flat patterns out, to be used in our CAM software. When preparing flat patterns for export, I sometimes get confused, as it can be difficult to see which faces is the top side is of a sheet, or which bends are up or down.
Maybe you know the situation, you have 2 versions of a part. You changed something but can’t find what it was. In those situations I spend a lot of time looking for the difference. Just to find the hole that was moved 1mm. Should I have this problem more often, then maybe my boss would let me spend time on creating a tool to help me. But I don’t have this problem often.
Over the years, I have created several assemblies containing many parts with various iLogic rules, generally they work perfectly. But sometimes for seemingly no reason, an edge case will not work as expected, and is usually discovered by a colleague. The challenge is that I then need to find the rule that is responsible for the problem. Often I know more or less what to look for, but out of the box, there is no iLogic search command that will look through all of the parts and all of the rules in an assembly.
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