I would have thought this setting would control the. Sample attached, but I feel like its a waste of my time. Are you not able to provide me a sample of it working??? I am curious as to why this value is unacceptable.
From a fabrication standpoint, there is good reason to build in those small "gaps" to allow for imperfections in the sheet metal fabrication process. It will not let you enter 0 as a value, but you can set it to a negligible value. Check out the "Fixed" part I uploaded. While there is still a gap, I think I measured it at less than 0. The sample you provided above, with the Tear option, opens up fine and without a radius on the corner on my Inventor I can zoom in as much as needed and the flat pattern view does not show the round cut and the distance you showed in your screenshot see below.
We will need to check other settings then to find what is different to your station. I don't think the corner radius cutout was a problem for the OP. My suggestion would be to spend some time learning how sheet metal unfold rules work and why they are used.
After learning this, you may be able to come up with a solution that fits your specific needs. I would try to explain what K factor and bend deduction and all of that means, but I don't want to write a whole blog post in this response. Instead, I would recommend that you check out these resources, which I found particularly helpful when I was working on our in-house sheet metal unfold rules:. I am aware of how to calculate the unfolding of sheet metal.
What I do not understand is how that calculation no matter what method its using can affect how Inventor makes the corner come together in relation to the bend lines when looking at the flat. Anything parameter that affects how that corner is created in the flat should be done in this screen alone:.
Attached is an update of the sample part. We use bend allowances, but I use this site to convert over to a K factor that gives the same output.
If I can setup an unfold rule calculation for each material, thickness, and die combination in our bend allowance chart, that would be quite beneficial. In inventor itself, I am clueless as to how the unfold formulas work or are to be used, so I would appreciate any help I can get in this. I am assuming that a different rule would be needed for each material thickness. Its optimal if that corner line can always be at zero or.
As the material gets thicker, its ok for a little more gap. Keeping it under. And there needs to be the corner relief as I have in the attached file.
Notice: updates available for Apache Log4j vulnerabilities. See the security advisory on the Autodesk Trust Center for more information. Inventor Forum. Produce sheet metal part designs that consist of cuts, punches, corner seams, bends, holes, corner rounds, corner chamfers and duplicate features.
Create designs using various approaches employing skeletal modeling, using legacy flat pattern and 3D models and implementing custom sheet metal punch features. Create and edit sheet metal drawings and document them using annotation tools designed specifically for sheet metal drawings. Request Info Downloads Syllabus. Autodesk Inventor Sheet Metal Design. Terms and Conditions Training registrations cancelled more than 7 days prior to a class are fully refundable.
If we cancel a training class for any reason, you will receive, at your option, either a full refund of fees paid or full credit for fees if paid toward registration in any future training class offered. The sheet metal template file incorporates a set of rules. The rules determine some common attributes such as material type and thickness, unfolding rules, gap sizes, and so on.
By changing a single rule, you can change the material of a sheet metal part from aluminum to stainless steel. A change of material often requires changes to the attributes that define bends and corners. Such changes often require changes to shop floor machinery and set-ups used to fabricate the parts.
Like other parts created within Autodesk Inventor , sheet metal parts begin with a base feature. The base feature of a sheet metal part is often a single face of some shape to which other features often flanges are added.
A complex design could use a contour flange or contour roll as the initial base feature. Some parts could utilize a lofted flange as the initial feature.
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