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Thursday, February 21, 2013

Estes Plasma Probe Build Part 8 Glue Together the Fins

The fit of the forward and rear fins was checked against the corner of my straightedge.

The instructions are vague about sanding the leading edges.
Don't sand the leading edge of the larger rear fin until after the two pieces are glued together.
You can sand the leading edge of the forward fin before gluing.
Round it now.




Glue was applied to the forward fin.
TIP: Notice the glue doesn't go all the way to the end of the (already rounded) leading edge.
Glue can soak into the leading edge of the rear fin making it hard to round the corner when the two pieces are glued together.




Using the strait edge for alignment again, here's how the two pieces look when the glue has dried.

The leading edge of the forward fin is rounded and meets up to the squared leading edge of the lower fin.





Getting into the corner for rounding takes some extra time.
You can see why glue was kept away from the corner. The wood isn't hardened up from the dried glue.

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