Measure the critical points and model without the bends initially.
yes I did do exactly that.
Then nominate a standard radius as close to measured as poss and unroll to 2D.
My surfaces were not joined though as some were simple bends., so I knew how they would be as 2D, others used welds to make up some tricky areas. Others were not for bending. The area you show was a later discovery and by then I was well into 3D modelling and trying to make the parts fit, so introducing 2D folds I felt set me a greater task still, and your images show the loss of the parts that were the critical area in the fitment.
When the actual part is folded to that nominated radius - the critical points should match, I think.
Having had the ‘flow’ command in a test I did,… show it was not matching the maths and theory of where a marker and end of test sheet should end up, I cant see how I could use Rhinos bending method.
Still need to offset the single surface to the neutral axis before unrolling.
I am needing to understand the offsetSrf to the neutral axis, I google this, in V5 help OffsetSrf there is no mention of neutralAxis. I you tube it and all videos are in Hindi, not sure why my Youtube is giving me foreign language videos, though titles are in english and no mention of neutral.
Could do with knowing or seeing what this means. I have used OffsetSrf and dont see such.
I search in help on 'neutral axis, and find nothing except image post processing.
I attach pics of what I have created and the wreckage.
No and No. I have the item, the material thickness is established with a vernier gauge, as are initial apparent radii, knowing the radii used on such parts normally. I have to simply recreate what it is, the radii they actually used etc. In the upper ‘shelf’ area all my radii that were in use elsewhere, went out the window as it was IMPOSSIBLE given the basics as Brian refers to, to get that area to fit together at all, I almost concluded they achieved the impossible with an L bend zero radius ! only by 3D modelling it did I eventually suss how it was, and could see the ‘shelf’ in fact had to miss sitting on the surface below it to be achievable. Measuring with x5 glasses and an angle poise lamp, taking macro photos etc.
2D modelling that part and trying to use flow command would not have worked, had to be created in 3D until it fitted together.
If I had worked in an engineering office designing parts I would have said they got that wrong. I am not however here to show how it should be as then I would have to have access to the area this fits in to see if my changes to history conflicted with something else where this went. I recreate how it actually was. This was fabricated perhaps with mallet and vice, as measuring it I get a feeling for its variations and construction.