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Plywood Sheet: Sawn Veneer Cross-Laid with Hide Glue
Plywood is thin wood laid in layers with the grain of each crossing the next, an odd number so the sheet stays flat; it splits less and swells less than solid board. Glued with hot hide glue, the woodworking glue of veneering since antiquity, and pressed flat overnight.
The picture: our diagram of the crossed plies.
Intermediate
A day, plus a night under pressure
Instructions
1
1
Cut the leaves
Cut the leaves
Cut five veneer leaves a little larger than the finished sheet: three with the grain running one way, two across.
Materials for this step:
Wood Veneer Sheet5 sheetsTools needed:
Craft Knife
Straightedge
Tape Measure2
2
Heat the glue
Heat the glue
Warm the hide glue in a double boiler to about 60 °C. It gels as it cools, so work steadily.
Materials for this step:
Hide Glue0.2 kg
Water0.3 literTools needed:
Double Boiler
Instant-Read Thermometer3
3
Lay up crossed
Lay up crossed
Brush glue on one face of each inner leaf and stack them, turning each leaf's grain at right angles to the one below; both outside leaves run the same way.
Tools needed:
Glue Brush4
4
Press overnight
Press overnight
Put the stack between flat boards straight away and load it with weights or clamps evenly over the whole area. Leave it overnight.
Tools needed:
Flat Wooden Press Board (pair)
Pressing Weights
C-Clamp5
5
Trim
Trim
Saw the edges square and plane off squeezed-out glue.
Tools needed:
Hand Saw
Hand PlaneStraightedge6
6
Plies and thickness
Plies and thickness
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Materials
3- 5 sheetsPlaceholder
- 0.2 kgPlaceholder
- 0.3 literPlaceholder
Tools Required
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