I pre-formed the large shroud as I have in the past. The shroud was set in the heel of my left hand. A clean dowel is pressed into the shroud and "drawn" in an arc like a hand on a clock going counter-clockwise.
Keep forming until you have a cone that will stand up on it's own without any glue on the tab.
It helps to clamp the top area with some long, smooth jaw tweezers.
TIP: The following shroud glue method can make for a cleaner outside surface.
I don't put glue on the normal "Glue Tab" but set glue inside the other side of the shroud. In the left picture, I've shaded the area with some pencil marks to show where the glue should go.
Apply an even skin of glue (right up to the edge) on the other inside of the shroud, then touch the wet glue onto the (left side) glue tab area. You'll be able to transfer glue onto the left side glue tab right up to the start of the print area. Use the edge on the right side to spread out the glue evenly.
Lift the even glue coated overlap - then line up the tab and press in place.
When gluing cardstock to cardstock, you don't need a lot of glue.
Try to get the glue film as even as you can before pressing the sides together.
Here's a dry fit of the fin unit in the shroud.
I was surprised how well everything fit together.
The fin unit will be painted gloss black before gluing the assembly in, but there will be some masking on the glue contact areas.
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