Extruding a helix

[rb26d3tt]

Hello.

I need to extrude a solid object out of a 2D shape which is partly made with a helix, arc and lines.

I cannot make the outer part a region, which I need to do to extrude it properly.

The inner circle is mean to be subtracted from the outer shape to make the final model.

[parkr4st]

fix the line work in the red circle.  it will extrude.

[rb26d3tt]

Much appreciated. How did you manage to find it?

[parkr4st]

after fix

new layer

boundary, select region option if it pops up & redraw center circle

extrude to solids

subtract inner disc.