Tag Archives: iLogic

iLogic is a Rules-Based parametric modeling language built into Autodesk Inventor, and is used to extend the capabilities of the program and facilitate the creation of user-made interfaces to automate large portions of the design process.

OpenDesignProject Forum Debut

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I’ve tried a couple times to add a forum to this blog, but they were always on the buggy side, or would blow the site’s formatting up. But I think I have finally found one that will do the trick. It is located at the link above, and should be used for anything that doesn’t fit in the comment section below every post.

Let me know in the General > Whatever section what groups and (like General) and Forums (like Whatever) you would like, and I’ll add them ASAP. I will be adding some of my own accord as well so hopefully we’ll wind up with a well rounded list. We are also looking for moderators who can spend a little time daily doing moderator stuff. If you have posted in the comments before today and wish to take on the task, just send me an email and let me know you’re interested.

There will be a very interesting post early tomorrow about Inventor 2013 so stay tuned…

 

 

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iLogic Tutorial – Shaker Table Arched Apron Option 3

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iLogic Tutorial Shaker Table Arches Apron Option 03 – Image 00 – The iLogic Arch FormThe last post in this Inventor Tutorial left us with some brackets protruding into our fancy schmancy highfalutin new arches. We need to fix this artistic insult by finding the smaller of the two reference dimensions we placed in the last post in this blogtorial series, Inventor Tutorial – Shaker Table Arched Apron Option 2 –then, we’ll write some iLogic code to configure things (nearly) effortlessly.  

On to the iLogic stuff….first off, we need to disassociate the brackets from the apron width. You may remember that way back when the Corner Brackets were added to the model that we used the Apron_Width parameter to determine the width of the bracket –which made sense as the two would always remain the same size. That is no longer so, so we need a new parameter to describe the bracket width.

Start the Parameter Editor (Model Tab > Parameter Panel), and add a new Numeric Parameter called Bracket_Width. In the Equation Column, click the little More arrow at the right hand side, click on List Parameters and choose Apron_Width from the list… Continue reading →





iLogic Tutorial – Automatic Board Configurator 02

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 In this, the second installment of this iLogic tutorial, we will extrude the solid bodies that will make up the multi-board top, and begin to develop the iLogic rule that will configure who many boards should be present, and how wide they need to be.

I’m not going to get super involved at this point, but I will add a configurable trim allowance at some point. I’m not 100% sure how to do so, but that’s never stopped me before.

We left off in the last installment –iLogic Tutorial – Automatic Board Configurator 01 –with the once single board top reduced to a more normal width <= 6, and have added three potential boards. The first thing to do would be to get rid of the Chamfer on the edge facing inwards…

 

Remove chamfer feature

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iLogic Tutorial – Automatic Board Configurator 01

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This iLogic Tutorial for automatic board configuration will show how to model and write the iLogic code that will automatically adjust the number and width of boards that make up the top of the Shaker Table.

To begin this iLogic tutorial, we will need to go way back to the beginning of the Shaker Table series to the first sketch in the table’s Layout Part, the Top Sketch. The first thing to do in that Top Sketch is remove the horizontal constraint between the center of the top and the Center Point. Just window select the point shown below, then hit delete…

 

 

Ilogic Tutorial Board configurator Image 01 - The point

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iLogic Tutorial for Creating a Woodworking Cutlist

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We’ll start this iLogic tutorial by informing you that there is no built-in cutlist functionality in Autodesk Inventor –parts lists, sure, but a parts list in most cases is about as useful as teats on a bull. I will likely go back later and split the top and create a glue-up schedule as well, but for now, an automated cutlist.

I cobbled together the technique used in this iLogic tutorial back when iLogic was a subscription bonus add-in a few years back. It uses Custom iProperties  to hold WIDTH, LENGTH, and THICKNESS values on a per-part basis. These values are filled in automatically using and iLogic rule that reads parameters in the parts, and are then used at the drawing level in fields of the same name.

This tutorial builds upon the twenty three previous tutorials in the Shaker Table series. On with the Cutlist Tutorial. Begin by opening up the Designing a Shaker Table with Autodesk Inventor.iam (the assembly). From there open the layout part which should be at the top of the list in the Browser Bar. We need to know all of the parameters that describe the width, length, and thickness of the Leg A solid body so that we can bring them into the assembly. Looking at the Parameter Editor, we can see one of them, Leg_Width…

 

iLogic Tutorial for Creating a Woodworking Cutlist image 01 - Autodesk Inventor Tutorial

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Inventor iLogic Assembly Automation Tutorial Decoded

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Inventor iLogic Code Tutorial image 01 - Image of iLogic CodeThis post is a follow-up to the Assembly Automation Tutorial for Inventor iLogic post where we added the fifty-some odd lines of iLogic code to our Inventor Assembly. Today’s post will attempt to explain that code.

This post was supposed to be published yesterday, but I spent most of the day screwing around with a plugin that will eventually allow me to post Inventor iLogic code with the proper syntax highlighting that can be copy & pasted right from the webpage into your iLogic Code Editor without intermediate programs adding special characters that screw up the code. I’ll be posting a bit more on that in the next post. Until that is up-and-running, I’ll use images…   

 

Inventor iLogic Code Tutorial image 02 - This is the image of the first chunk of iLogic code used in our sample

The first two lines of code (above) are creating variables. The Nut_Offset variable gets its value by  reading the Nut_Offset parameter in the Hanger Bolt:1 part. The second variable, Overall_Size is reading two local parameters (Blue) and multiplying them against each other to get its value.

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