Step by step

Step 1

On each wooden stick make a mark in the centre, 1.5cm from one end. Drill 8mm diameter holes into each, where you’ve marked. The sticks can easily splinter with holes this big, so drill very slowly and place a wooden block underneath.

Step 2

Screw a nut up to the top of the 8cm long bolt, add a washer, then slide the first stick onto the bolt. Add another washer, nut and stick, then repeat this pattern until all of the sticks are on the bolt. Each of the sticks should have a washer either side of it.

Step 3

Take the 20cm long piece of wood and drill an 8mm diameter hole in the centre, 4cm from the end. Add this piece onto the bolt, making sure to sandwich it between two washers. Add two final nuts; ideally the last one would be a locking nut.

Step 4

In ascending size order, glue each of your objects onto the wooden sticks using hot glue. We painted the edge of the clear yogurt lid white to help with visibility. Label each stick with the degrees of sky that each object covers.

Step 5

Place the L-shaped bracket in the centre of the 60cm length of wood, 7cm from the end, and mark where the holes lie. Then place the 20cm piece of wood at right angles, agains the bracket, and mark the holes. Drill 6mm diameter holes into each mark.

Step 6

Bolt the bracket in place, being sure to add a washer between the nut and the wood. Finally, with a spanner tighten the nuts that are between the craft sticks so that each stick has tension but is moveable. Your sky measuring device is now ready to use.