It s really not necessary to go to those ends. A pair of 2x4 that looks straight when sighted with the naked eye (Or even a piece of string if you trust thatMessage 1 of 8 , Feb 1, 2011View SourceIt's really not necessary to go to those ends.
A pair of 2x4 that looks straight when sighted with the naked eye (Or even a piece of string if you trust that more) is more than good enough. Measure the plywood or cardboard for the sides, glue and screw. You really won't feel the difference. However people who go through such lengths as you describe (Just from the effort they're willing to put in) usually end up with really nice boats...
"When somebody has risked and failed; and when somebody has fallen from the tightrope they've been walking on; somebody has to pick them up and give them a burial. The best thing is that a friend should do that" (T. Hynds)
On Tue, Feb 1, 2011 at 12:36 PM, Roger Crier <rogercrier@...> wrote:
We have to bear in mind that the whole reason Platt made the strongback with
cardboard on the side is that the laminated construction of the cardboard
makes a stiffer strongback is the sides are made of wood. When glued onto
the sides and orientated just as as he did it, the cardboard is virtualy
un-bendable. Anything else is some factor inferior . When gluing the
strongback sides, you must try to work on some sort of reliable flat
surface, and for Joe Public that is quite hard to find!
A frozen lake or the local ice rink may do it :o
I am going to use the perfectly flat and level steel floor at work, as it is
part of a large accurate measuring device, so I am very very lucky.