On 10/15/2012 7:32 PM, Lew Hodgett wrote:

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From the boat builder, consider a long board for fairing a flat
surface.

Use a piece of 1/2"-3/4" plywood, 4" wide and 36"-48" long.

Mount a handle on each end and use rubber cement to glue 24-36 grit
paper
to the ply.

Sand on the 45 degree bias, first "+" then "-".

Use a 3/4" aluminum angle as a fairing batten. The knife edge of the
aluminum
angle will leave black lines on all the high spots so you can use the
long board
to knock them down.

Those damn belt sanders are a disaster waiting to happen IMHO.

Have fun.

Lew




Great big positive integer on the "disaster waiting to happen" part.

There is a big difference between a smooth surface and a fair surface.
You can make it smooth with a power sander. But it won't be flat.

Use the long board and make it flat.