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National Nucleus Coverboards

3rd Angle
The Grain should run along the longest dimension of any part.

Cutting of parts (all dimensions in mm).
QtyLengthWidth ThicknessMaterial5 Frame Nuc
1460230 9Exterior PlywoodMain Panel
2460 199PineLong sides of rim
2212 129PineOther rim parts
QtyLengthWidth ThicknessMaterial3 Frame Nuc
1460153 9Exterior PlywoodMain Panel
2460 199PineLong sides of rim
2115 129PineOther rim parts
QtyLengthWidth ThicknessMaterial2 Frame Nuc
1460115 9Exterior PlywoodMain Panel
2460 199PineLong sides of rim
277 129PineOther rim parts
Coverboards for 2,3, & 5 frame nucs


Use with rims downwards for bottom bee space or with the rim uppermost if top bee space use is required.



The holes shown are circular for feeding, some use the standard
Porter Escape Holes instead but I can see no valid reason for doing this.



Note 1.
9 mm plywood is specified owing to it's greater rigidity and freedom from warping. Thinner material (6 mm) can be used but if the boards are to be used in sets then all must be made the same.

Note 2.
9 mm is specified for the thickness of the rim material but commercial supplies are often of 8 mm thickness, using 8 mm is unlikely to cause any problems.

Assemble using a waterproof PVA type glue and 16 mm pins or staples.

The versions drawn above are simple and durable. If petroleum jelly is used on the rims and linseed oil is used on the main panels the items will give many years of practical service.

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