Saw six pieces of 30 cm from the wooden beam. Measure a 45° angle on each piece and saw them off.

Saw six pieces of 10 cm from the wooden beam,two pieces of 18 cm, three pieces of 40 cm, two pieces of 42 cm, two pieces of 19 cm and two pieces of 73 cm. Finally saw two lengths of 170 cm.

Saw rectangles (4 cm x 4 cm x 2 cm) out of the ends of the 170 cm lengths and the 40 cm pieces. Glue the sawed ends of the 170 cm lengths and the 40 cm pieces together in a right-angle.Screw two pieces of 30 cm (the ones with the 45° angle sawed off) in the right-angled corners.

On the other end of the 170 cm beams you measure 3 cm from the top and drill a 15 mm hole. On top of that hole drill a 1 cm deep hole 32 mm in diameter.

Glue a 10 cm piece between the finished right angled pieces, starting from the corner. Than glue two pieces of 10 cm at 25 cm and glue the last one at 83 cm.

Take the last 40 cm piece, measure 11 cm from the sides from these marks draw two 4 cm by 4 cm rectangles and saw them out 2 cm deep.

Screw the 42 cm pieces to the 73 cm pieces and drill a 12 mm hole throughout both pieces at height 20 cm.

Screw the long ends (at 120 cm) “of the so far finished base” on top of the 42 cm pieces.

Screw a 18 cm piece on top of the long ends - between the 73 cm pieces.

Screw a 18 cm piece between the tops of the 73 cm pieces.

Screw two 19 cm pieces vertical between the two 18 cm pieces leaving a 2 cm space between them.

Screw four pieces of 30 cm (the ones with the 45° angle sawed off) in the right-angled corners on the base.

Fill the screw holes with wood paste and sand them smooth.

The base is finished.