YOU NEED …
2 x short
axles
2 x pulleys
2 x fasteners, front
and rear parts
rubber band
2 x axle
stoppers
1
2
HERE’S HOW!
1
Connect the two parts of each fastener
through the pre-cut holes in the tree trunk, as
shown in the picture. To do this, you need to
fit the two parts together, positioning one on
each side of the tree trunk, and then turn the
front part, as shown in the drawing.
2
Stick a short axle through each of the
completed fasteners.
If you’re ever unsure
what to do next, just
give it a try or ask
your parents.
16
Belt Pulley
and the