How would I go about emulating this effect?

devin_sanders024

I've looked into using the helix tool, but it doesn't play well with non-cylindrical bodies. If only I could wrap it around the contour of the part, but that doesn't seem to be a possibility.

SMURFCAD

What about a helix on a conical. Then trim off some of the outside using a spline or curved revolve.

Repeat for the other side and merge them.

SMURFCAD

Hard to tell from my other pic that it's not conical. This pic shows it's a curved outer profile.

glen_dewsbury

Here is another sample like Smurf described.

https://cad.onshape.com/documents/9a16e90e97ff0f49350854fe/w/8b1147e1bb96ce49e97d63d0/e/c52f5a3024057401d418807c

CADNurd

I spent FAR too much time on this, but I think it turned out well . . .

https://cad.onshape.com/documents/62d464d87ccc2dca4ff73036/w/3e287552aa809bd9e5887715/e/ac7b7118bb48214be810579b?renderMode=13&uiState=699ef48cdd9a1770acdb30da

SMURFCAD

@CADNurd That looks great! Can you share how you made it? Your document just shows an import and fillets.

CADNurd

@SMURFCAD

After that it got very messy, with mirroring and transforms before finally mating the two mirrored halves together in an assembly and exporting it out as a parasolid. If I was doing it again I'd do it all in one go and not bother with the mirror. Definitely 100% done using Onshape though. No tricks.