The motors tubes were made from 1/4" diameter launch lugs. Like the dowels, the lugs were cut to 2 1/4" long.
Here I've sanded the glue lines using my sanding block with 400 grit.
Evening out a glue line - mentioned earlier -
On the left is the initial glue bead right out of the bottle.
On the right, I've evened out the glue line by using the "V" formed by the pinched thumb and index finger. Run the "V" down the glue line.
Both of the launch lugs are glued to each other, with the ends even. No need to glue fillet.
Make two sets of two lugs.
After the glue dried,
The ends were sanded even on a block.
With a sharpened dowel, the folded in "skin" was lifted out for fine sanding and a cleaner edge.
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