Here is a list of the dimensions of the pieces to a BeeWeigh. The dimensions are not  critical as the device needs to be calibrated after it is complete. The 43″ length of  the horizontal arm will weigh a hive weighing 200 pounds without excessive effort. The  vertical arm is sized for the height of an average person. In both cases the lengths  could be adjusted to suit your needs.

Horizontal arm 1 1/2″x2 1/8″x 43″ fir
Vertical arm 1 1/2″x1 1/4″x 43 7/8″ fir
Corner brackets 1/2″x5 1/4″x6 3/4″ plywood
Standoff Piece 3/4″x 1 1/4″x13″ pine
Plumb Bob Backer 3/8″x 4″x 13″ plywood
Lifting Dowel 3/4″x 4″ hardwood
Fulcrum Dowel 3/4″x4″ hardwood

Here is a diagram of the dimensions. The distance between the fulcrum center and the lifting dowel should be about 8 1/2  inches. This is about the correct distance for the lifting dowel to be centered on the  side of the hive when the fulcrum dowel is on the hive stand at the rear. Both dowels  are slightly flattened on the side which is attached to the arm. This is to minimize  the tendency to roll when in use. Use two screws in each dowel to attach them to the  arm. Countersink the screwheads in the fulcrum dowel to prevent them interfering with  the operation of the BeeWeigh.

Drawing of the BeeWeigh dimensions

Dimensions of the BeeWeigh

Hole locations in the horizontal arm

Location of Holes









The drawing at the right shows the approximate location of the holes for repositioning  the vertical arm. The easiest way to drill these holes is to move the vertical arm to  the desired location and then drill, from each side, the necessary holes. The long  position of the vertical arm provides the leverage to weigh heavy hives in the range of  120 pounds and above. The middle position is suitable for weights in the range of 60 to  120 pounds. The short position is good for nucs.

Diagram of the plumb bob section

The Plumb Bob

Here is the configuration of the plumb bob section of the BeeWeigh. Once the plumb  bob reference line is established during the calibration process, a small fence staple  is useful to retain the plumb bob line and limit its swing.