I built a cradle whose sides were made up of a bottom rail and a top
rail and a large number of narrow slats separated by spacers and set
into slots routed in the edges of the rails.
Once everything was cut to size and dry fitted to be sure that none of
the pieces were too thick, I proceeded as follows.
Draw a vertical line across the face of one rail at the exact centre.
Draw a vertical line on the face of the first slat. Glue the slat into
place, alignin its center mark with the mark on the rail and use a
tri-square to be sure that it is vertical. Clamp it into place and let
Then you can place the other slats (and the spacers) by alternation and
use spare spacers to keep the slats vertical.
When the first rail assembly is dry, you can add the second rail, using
centre marks as before to get it in the right place. Except for the
first slat, do not glue the other; let them float. Glue the remaining
spacers into place. If the first slat is true and your work out from it
towards each end, the others will be true too. I think I had about 30
slats on each side of the cradle.
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