cursor over parts to see sizes
all centimetres unless stated otherwise

handle

5mm dowel or paper stick 3cm

crank

softwood
1 x 1 x 4
drilled twice
5mm holes

crankshaft

5mm dia. dowel or paper stick about 5cm long

trip

softwood
1 x 2
drilled near end 5mm dia. hole

bracket

stiff card
approx. 1 x 5

shaft

paper stick
5mm diameter
15cm long

frame

stiff card
approx.
6 x 9

see template below

block

softwood
1 x 1 x 4

base

stiff card
any size
above 5 x 5