Creating a flat pattern from a rolled object

[GavinReynolds2021]

Hello, Sorry to ask what is probably a daft question but I am having trouble creating a flat pattern from a rolled part. I know I have done this in the past but for the life of me I cant think what I am missing. I am basically using the sheet metal function to print a 1:1 paper template to wrap around a 10" pipe to cut the correct shape to weld the pipe to an unusual object. I have done this in the past joining large pipes at non standard angles. In this case I have to match the 10 inch pipe to the top of a hemisphere at right angles. I drew the pipe, hollowed it. Drew a quadrant of the hemisphere and rotated it as a cut to removed the shape in the 10 in pipe. I created a cut line in the resultant shaped pipe. I have checked my material thickness matches the sheet metal rules yet I still get a message telling me to check that. I dont work with sheet metal functions very often. If someone can point out my mistake I would appreciate it. File is attached. Thank you Gavin

[WHolzwarth · Accepted solution]

Perhaps like this? Last thicken feature is providing rectangular edges of flat pattern.

Walter

[Anonymous]

Hi GavinReynolds2012,

There will be a number of way to make the paper wrap around, hopefully this might

be of help. I don't know your shape requirements as i could not see your attached file.

Cheers

Mark

Inventor 2014

[GavinReynolds2021]

Hi Walter,

Thank you for your help. This is a different method than I have used in the past but I was able to modify it to achieve what I needed to do. I have attached the file below. I think you misunderstood my description of the intersection with the hemisphere so I just wanted to show you what I did.

I appreciate the help

Regards

Gavin

[WHolzwarth]

Thanks, Gavin. Now I understand better.

Additional note: For obtaining perpendicular edges in the flat pattern, in most cases two intersecting thickens are needed. One inside out, and one outside in.