Dome from Panels

Dome from Panels

Anonymous
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Message 1 of 24

Dome from Panels

Anonymous
Not applicable

I am trying to design panels that will be cut from steel sheets, roller bent, and welded to make a hemisphere (roughly). 

I have more-or-less designed the panel (I need to review it and confirm), but am having trouble verifying my design by building it into a dome. I am looking for help on my next steps, or how to draft my dome such that I can generate a flat panel design to generate the cut pattern for the sheet metal.

 

I have tried the sheetmetal tools, creating a flange from my panel design and then bending it with the radius (bend override) that I want. This seems to change the shape of the panel and when I pattern it in a circle to make a dome, they overlap. I suppose my panel design could be wrong but I am pretty sure the flange command changes the shape of the panel. Maybe because it flanges between two edges and cuts away everything in between. When I view my sheet metal design flat, the panel shape is clearly altered. It also seems to double my dome radius (and therefore double the needed panels) but that should be a tweakable fix. 

 

I suppose this is probably doable with sculpting? Although I do not know where I would start with that as I am not a strong sculptor (advice appreciated here if this seems like the easiest solution).

The panel was designed by splitting the Dome cross section into courses, and determining the radius at each course. I suppose another approach would be to draw and arc, and rectangles along the path at the arc along the defined courses of different radii, and loft between each rectangle.... I dunno. 

 

Thanks for any help! Jeff

 

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Accepted solutions (2)
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23 Replies
Replies (23)
Message 21 of 24

Silver.illak
Explorer
Explorer

Hi im realy new for this. And cant understand of how do you bend triangle in to dome peace. I have scetched out floor line and ark and cant make floor flange to folow the curve. Is there any tutorials about curved sheetmetal? I havnt found any. My own goal is i allready have tent frame and want to mend canvas for tent and thaught would be good way to see what kind of cuts neet make for tarp to make it to dome shape. 

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Message 22 of 24

Anonymous
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Take a look at the solutions posted to my problem - in the reply they have attached the design files. You can download and open the file and click through the design history to follow the steps. This is a quick way to do it, but if you search Fusion Sheet Metal tutorials there is lots of info. 

Message 23 of 24

Silver.illak
Explorer
Explorer

Yes i was trying to decode what was there but just dont get how do you get that ark as "bend". I have managed to do that shape but it doesnt bend. When i was decodeing your design i guess you used paching. And you created flange for bottom lip. I guess there has to be one flat surfice. But from bottom flange dont get it how to turn that ark part to "as sheet metal" when im thikening surfice im geting regular new body. Yours pointi ark is green as bendable when im unfolding/folding it. 

Lot of tutorials in youtube and skilshare are "simple" bends from flat surfice to "box" tutorials..

 

heres f360 public link https://a360.co/3cPPjtG

Maybe its to much for my brain.. 😞

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