AutoCAD Inventor :: Work Features Cannot Be Made On Bent Sheet Metal Part
Jan 21, 2013
I have attached a simple model to detail what I am having trouble with.
I have constructed a sheet metal tube by first creating a flat sheet face and then by folding the sheet with two, 180 degree bends and large radius. I am doing it this way in order to simplify the drawing of the cutouts that are required in the "real" sheet (with many more cutouts than in the sample I have provided.)
When I try to add work points or work axis to the holes shown in the sample, only the holes on the second bend will accept the work features, the holes on the first bend will not - giving the error:
TEST.ipt: Errors occurred during update Projected loop failed because of multiple vertex solutions Work Point8: Could not build this Point Copy Point Zero or multiple solutions for Point Copy Point. Use Redefine Feature to change its definition.
I am using the work point as reference to the center of the hole in order to position a rod.
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May 30, 2013
I have a sheet metal part which is bend to a v-shape.
I want to have a cut out across the bend area. How to project that in to a flat pattern and cut out the relative opening size in the part.
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Oct 15, 2012
Is there a way to form tabs along a cylindrical surface? We are trying to make a bottom of a round basket and we are trying to use the sheet metal portion of Inventor so we could create a flat layout but I can not seem to use an arch as a bendline. Is this the case? We are using IV 2011.
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Jul 16, 2012
We have a custom-made sheet metal punch consisting of a 5x5 matrix of 1/8" holes. We export flat patterns from Inventor as DXFs.
We normally make DXFs by creating a view of the flat pattern on a blank IDW template (no border, no title block, nothing) and export that view as a DXF. This lets us orient the view at will, unlike right-clicking on the flat pattern in the browser and selecting Save Copy As.
When the sheet metal guy assigns tooling in his software, he needs to get each punch to "lock onto" the corresponding feature in the DXF. Normally this isn't a problem, but it has been with this gang punch. The center hole of the punch needs to lock onto the correct hole in the DXF, and it can't always seem to do it. I've sat alongside the guy as he does this, and in his software the centers of the circles show up as dots/points. But on this punch, there isn't necessarily a dot in the center of every circle, and it's possible that the center hole, which really needs the dot, won't have one.
I've come up with a workaround for this: a work point in the IPT. In the attached part, it's feature Tooling1. The sheet metal guy confirms that if I include the work point in the DXF as a point (in the AutoCAD sense), he can lock onto it. However, I find that if I generate a DXF from the flat-pattern IDW, the point is lost. If I generate an ACAD DWG from the IDW and save the DWG as a DXF, the point comes through in the DXF. But that's an extra step.
Is there a way to export directly from IDW to DXF and not lose the work point? Or is this as good as it gets?
For the sake of simplicity, the attached part has no bends. I realize that if I did, I'd have to re-create the points in the flat pattern, but that's another discussion.
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Mar 19, 2012
I have a formed beam I would like to mirror in an assembly to avoid the work of forming the opposite bent part. I have mirrored it however the cuts in the lower side of the beam are mislocated as if the part were rolled over rather than mirrored.I am in Inventor 2012.
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Apr 7, 2012
How to predict possible interference by planning a piece modeled in sheet metal. eliminate these interferences future?
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Sep 12, 2013
A collegue asked me about this as he has been given a part to model and the details are for the flat sheet not the finished model. Is this possible in 'sheet metal'? I had a quick play but couldn't work it out. Im used to creating the finished part and 'un-folding' to get the flat pattern.Detail supplied below.
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Aug 2, 2012
Let's say that I'm making a simple L bracket. I'm going to form it, and machine the holes in both ends *after* forming. So I don't want the holes to show in my flat pattern.
On the few threads I found, the consensus seemed to be that you may have to have the part file contain no holes and put them in as assembly. So I just accepted this that it must not be able to be done.
Then I ran across a piece of promo literature online from AutoDesk that made mention of the ability to create "postform" features that obviously are created after the forming process.
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Nov 15, 2011
I set up our company log which gets embossed on most parts as a sketch block in an .ipt. The .ipt contains nothing but the sketch block. To use it, the designer only needs to derive the Logo.ipt file into their part and then use the scale setting to set the derived block to the desired size for that part. The result is a scalable set of line geometry that can easily be used for extrusion or emboss that is standard for all users. It works beautifully, that is until you try to use it in a sheet metal part in 2012.
For some reason, when this same part, which works perfectly in normal parts, is derived into a sheet metal part an error pops up stating that, "Selected part does not have any geometry that can be derived." Say what?
I was able to find a workaround by directly copying the block into the sheet metal part, but you no longer have the ability to go back and scale it if needed. Even more strange, when the block was copied over, it could not be deleted from the new part.
Is this just a bug with 2012? Why does it work in a normal part but not sheet metal?
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Dec 28, 2012
The part i make is from solid model>The part needs to be in sheet metal.What steps do i use to make as sheet metal part and have option to flatten part.
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Jun 18, 2013
I want to create a flat pattern of a sheet metal-part that I've used in an assembly. In this assembly I've made cut-outs in some of the parts (see attached .png). Is it possible to get at flat pattern of the specific parts with the cutouts? I can e-mail a ZIP-file with the assembly (the file was too large too attach).
Running Inventor professional 2013
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May 4, 2012
convert the part that I have drawn to sheet metal. I have tried to make the part from sheet metal and it did not work out at all. I have attached both versions of the part.
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Aug 29, 2012
In previous releases (2009 i think) when i converted a standard part to a sheet metal part i could recall all the sheet metal styles by linking back to the sheet metal template (i can't remember exactly how this was done, but it was possible with one operation)
In 2011 i canot find a quick way of doing this, it looks like i have to open the sheet metal template and export each different style (about 40 of them) and then import each one into the converted part. am i missing something? is there a simpler way similar to how it used to be done? Why have Autodesk made this more difficult?
As it stands at the moment it would be quicker for me to remodel the parts from scratch using the sheet metal template. I know this is the obvious solution, but seems strange to change something that worked well to something that doesn't!
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Apr 3, 2013
I have a structrual rectangular tube as shown in the picture below. I need to fold the four flanges inward to create a sort of point or pyramid.
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Sep 3, 2013
I made a part in sheet metal and used the Cut tool for cut-outs...i tried by using flatten Patern,draw sketch but this did not cut part...is there a more better way of making these cuts?
INV 2013
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Sep 16, 2013
For whatever reason this part was not modeled as a sheet metal part from the beginning, but now we would like to convert it to one. But when the "Convert to Sheet Metal" button is pressed, an error message pops up saying "This model cannot be converted to Sheet Metal because it contains features that have created multiple bodies. In order to convert to Sheet Metal these features must first be removed". The only way I can get this message to go away is to delete all the features. This part is used in a few weldments, so I'd rather not have to redraw it, but I'm at a loss as to why it can't be converted.
Using Inventor Professional 2014.
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Oct 12, 2012
I have a 14 gauge sheet metal part that follows the profile in the attached picture. 7/8" legs with a 1/16" offset. Because it's 14 gauge, the contour flange won't create it. I need it to be able to be turned in to a flat pattern so that I may export it to a .dxf.
Is there another way to make this that will allow me to flat pattern it? I have a couple of pieces like this where the offset is very slim, so I am looking for a way to do all of them like this.
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Jan 25, 2013
I created this part with solid modelling......can / how this be made with sheet metal tools.....i do not use sheet metal tools but plan to.
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Oct 25, 2012
I want to bend the sheet metal part as on 90deg
I have tried using bend and Fold tool but it dose not produce the right model as desired.
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Nov 3, 2012
I would prefer to make this part with the Sheet Metal tools . How would this be made with sheet metal tools and how do i flatten this piece?
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Sep 17, 2013
Its been a long while since I have run into something that I have drawn which I cannot get to flatten. I am using Inventor 2011. If you can get it to work in 2012 or later, then I guess it is just time I upgrade.
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Nov 10, 2011
How do I delete work plane 1 from the attached part, 'test derived'?
workflow.
create a part, pattern a plane, save as 'test deriver'
create new part, derive work plane 1 from 'test deriver' sketch onto work plane 1, save as test derived
go back to 'test deriver, delete the pattern and create a new pattern, work plane 2, (i couldnt just edit it because the real life case was a series of patterns at different distances)
open part 'test derived', edit the derived part to include work plane 2, (work plane 1 doesnt exist in 'test deriver' anymore) redefine the sketch onto work plane 2
try to get rid of work plane 1 from the part?
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Jun 6, 2013
I have attached a sheet metal part (2014 .ipt) and am having issues trying to use the rip command, maybe my understanding of the rip command is unclear, and I should probably just create a sketch and extrude a slit.
Using the image below as a reference,
What I want to do is to create a rip or slit from P1 to P2, which will give me face C. After this rip, I want to bend face C at P1 so that it is parallel to face A, leaving face B at its current state.
(the construction lines are from the existing frame that this will be welded to.)
My 2 solutions are to create this slit using the extrude command then fold, or to cut face C out completely and add a flange to that cut edge. I am just curious why the rip command is not letting me create a slit from P1 to P2.
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Oct 4, 2011
I drew a very funky bracket in IV 2012. I tried using the sheet metal features but they wouldn't cooperate with the funky geometry. I ended up having to draw to sketch profiles, lofting to create a thin feature, and thickning it to material thickness. But this left me without any real bends that the unfold tool can recognize. I tried using the unfold tool (I know that's not what it's for) but it gave me some very funky geometry. I tried ripping out the lofted bends, which worked great, but that leaves me with twisted edges that the bend tool can't grab. how to either model this using the sheetmaetal tools, or how to make this thing unfold?
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Oct 12, 2011
I am having trouble adding a sketch which is on a dwg file to my sheet metal part. First I created a flat plate sheet metal part.
I also have a sketch on a dwg file that I am trying to transfer to the surface of the sheet metal plate. I initiated a sketch on
the sheet metal part thinking I couls open the sketch on the dwg part and do a copy and paste. That did not work.
Second I tried to insert the dwg file but when I search for the dwg file under the insert function, there are no dwg files shown.
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Jan 23, 2012
I have a sheet metal part. It is a machine door with four edge flanges. I have mirrored this part. The origin part has flat pattern while the mirrored creates the folded pattern.
It still folded even when origin is in flat pattern.
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Feb 6, 2013
The part in the attachment was made in catia. The main face is curved in two directions. In my language we call this a "double curved surface" this is possible to generate a flat pattern from in catia. How to do this in inventor?
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Oct 31, 2011
I created a part that spans between two other pieces. The original part model does not have a twist in the "flat" surfaces, so it unfolds just fine, but it also does not represent the way the actual part fits, so it is difficult to determine if any other parts are fitting correctly up to it.
I had a problem getting a part to unfold before, and I was shown a method of creating a surface body and a thicken, which I have done with this part, but as of yet have had no success unfolding this part.
Is there anything that I can do since the sides are twisted and not planar?
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Jun 21, 2013
I have a sheet metal part drawn up that I can't manufacture as modeled. The solution is to convert it from a two bend part into two single bend parts that will then be welded together. (I have an iLogic configurator that spit it out or else I would have drawn it right in the first place) Normally I would split it into two solids and derive them into two parts, but because Inventor still doesn't support multi-body sheet metal (this is something I curse about daily, by the way...) I would have to convert it to a standard part first.
The problem here is, I have a ton of edits done to my flat pattern. I have an extruded tab that's needed for my press brake operator that later gets cut off, and I have a fairly complex sketch that I use to program my laser with etch lines for my welders to use. How I can accomplish converting this into right/left parts without having to redo my flat pattern edits?
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Jul 31, 2012
I need the dimension of .5 to become .25.It won't work, probably because it is the same dimension of Sheet metal Tickness.
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Dec 26, 2012
Can a curved section with bend be applied to sheet metal part.I make extrusion for easier clarity.I am wanting to place the curved section (extrusion for demonstration purpose) with bend in sheet metal part but all created in the sheet metal environment.
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