joesymonds Posted November 26, 2014 Share Posted November 26, 2014 Can anyone help me with this sheet metal part? I'm sure its really straight forward. I want the 40mm distance between the two holes on the folded part, to be 40.5mm when the flat pattern is created, not 40.477mm. How can I specify the folded and the flat pattern size rather than the bend determining it? Here's the part file.. Clamp Elbow Right.ipt Cheers, Joe Quote Link to comment Share on other sites More sharing options...
Lazer Posted November 26, 2014 Share Posted November 26, 2014 As you have 2014 Inventor you could use the unfold feature first then add the holes to the desired size then refold it. Quote Link to comment Share on other sites More sharing options...
joesymonds Posted November 26, 2014 Author Share Posted November 26, 2014 The holes are concentric to the outer radii. If I use unfold and then try to change the distance between those centres I just get the 40.477mm driven dimension because the flat pattern size is driven by the bend radii. I want the dimension on the flat pattern to drive the bend radii, not the other way round, if thats possible? Quote Link to comment Share on other sites More sharing options...
JD Mather Posted December 8, 2014 Share Posted December 8, 2014 What difference does the dimensions on a flat pattern make? That isn't how the part is used in an assembly? It is used in it's finished form, only the finished form dimensions should guide the design of the part. Is that a test question (seems like I have seen that part here many many times in the past)? Quote Link to comment Share on other sites More sharing options...
joesymonds Posted December 8, 2014 Author Share Posted December 8, 2014 No its not a test question. Its a part from a Manual Clamp assembly, the set of drawings are from a site called Inventor Wizard. The flat pattern dimension is specified on the drawing, as well as the folded dimension. I think the dimension precision setting on the original drawing must be set to 1 decimal place and that's how they have got the 40.5 dimension rather than 40.477 Surely in sheet metal work you might have to tweak your folded design a little, as it might affect how many times you can fit your flat part onto a standard size sheet? In this case it isn't really important and I think I solved my own question, Cheers though Quote Link to comment Share on other sites More sharing options...
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