Hi Gary,
> Is there a way to get a rounded end without a flat spot as I now have?
You'd probably want to incorporate a rounded end more directly into your original curve structure to get that.
I'd probably try some steps like this:
Start by drawing a 180 degree arc which will give the rounded end shape that you want:
Now draw in a curve for the side shape:
Mirror that and draw a line connecting them:
Now Extrude this to make a solid out of it - extrude it a ways further than what you need for the final shape because we'll cut off a portion of the top piece to give it additional shape:
Now go to an side elevation view, and draw in a new curve that divides the extrusion into 2 pieces and has the additional contour that you want:
Select the extrusion and run the Boolean Difference command, use that side curve as the cutting object, that will slice the extrusion into 2 pieces:
Delete the top piece. Now select these edges:
And fillet:
I've attached a 3DM model here with that result and the curves I used in it if you want to experiment with those.
Hope this helps,
- Michael
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