Having got the LE and TE stuck onto the foam cores correctly, it's time to get everything as smooth as possible. It's amazing how, while visually nice, things are very lumpy and bumpy when you get a sanding block to them.
If you remember from a previous post, I have a piece of 2" square Ali tube which I'd been using to help weight down the wings while glueing. I cut a section of this off to give me a nice flat and square sanding block. A bit of 2" double-sided tape and a piece of sandpaper glued to it, it looks like this:
It's essential to have a square and flat sanding block - equally as important as a square and flat building board!
When it comes to sanding the ends of the wing panels for joining, the appropraite angle to allow for dihedral will be achieved by blocking up the wingtip to the correct height, then using this sanding block on the other end. Because it's square, it'll create a perfect right-angle with the building board.
That's it for this episode. "Dust, anyone? Dust?"
No comments:
Post a Comment