Step 1: Materials and Tools
I've mix and matched metric and inches here (Canadians tend to do that) so double-check each number.
25-32 cm long piece of 2.2cm (1") wide square stock
18-24cm long 5/16" diameter dowel
5/16" drill bit
Miter saw (manual or powered)
Scroll saw or a coping saw or a 3/4" chisel
a hammer or mallet