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Helical feature

jhwilkinson

New member
I would like to create a sheetmetal part that is basically a flat
circular disc that has a sprial kerf cut thru it's thickness and not
breaking beyond the outer circular part edge. I would then like to be
able to translate the center portion away from the rim & allow the
structure in between these two planes to "take on" a helical shape.
Another option would be to create the model in this deformed (bent)
shape & then unbend all. Any idea on how to approach this in
Wildfire 2? I need the unbent shape (flat pattern) for the
manufacturing drawing, but the deformed view for the assembly
visiualization. I would also be open to creating a single solid model
with two family table instances for the flat & deformed states if
that is easier.
 
Is this what you intend..? As regards the family table of bent and un-bent parts, do the following...


Edit->setup->sheetmetal->flatstate-->create--&gt ;[enter filename or accept default]-->fully formed. Your flat state part is created. In the drawing mode, you will need to add both models (flat state and fully formed) to get a drawing of both in the same drawing. To do this... File-->properties-->drawing models--> add model-->[add both models] IMP !!! While inserting the views....set the desired model as current.





View attachment 2644


I hope I have been of help.
 
SRINIVASANIYER1,





Sorry for the late reply. Attached is an image of something I "hacked"
together to get the idea across. Unlike a bent / unbent sheetmetal,
however, I'm afraid my two family table members (bent & unbent) are
not truly the same part (It is really three somewhat independant solids
"glued" together). Is sheetmetal my best option for simulating this?
How? Any input is appreciated.


View attachment 2676
 
You might be able to do this in sheetmetal by using a form tool (die) that has the helical ramp as the deforming surface. I haven't tried it, but I think it will work.


Hope this helps.
 
A form die may not be the solution. Using a form die you will get the shape but on flattening theform, the planes just flatten meaning the length of the edge will not be taken into consideration. Furtherin the actual component on flattening there would also be a twist. Typically Bowl feeders are designed on similar lines.


I wonder whether it can be modelled as a spring or as aflexible component.


hmmmm...........this needs thinking....
 

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