Copyright 2006 - TeacherGeek - Ping-Pong Ball Launcher Activity - All Rights Reserved
Page
Ping-Pong Ball Launcher
™
L
Pull and push the
reamer in and out
of the hole.
Turn the reamer
inside the hole.
To further enlarge a hole, as you ream
it, move the end of the reamer around
so it is not in line with the hole.
How to Ream Holes
Screws
Slide-Stop Material
Slide-Stop
Material keeps
dowels from
sliding back
and forth in
“loose” reamed
holes.
Slide-Stop Material comes in long lengths.
It must be cut into 6mm (~1/4”) sections
before it can be used.
Slide-Stop Material keeps components with “loose”
reamed holes from sliding back and forth on dowels.
Screws can be used to attach two
components together.
The hole the screw
will enter first must be
reamed “loose.”
The hole the
screw will enter
second should
not be reamed.
Turn the screw into
both components.
*Be careful not
to over-tighten
the screw and
strip out the
bottom hole.
Tighten the screw
completely to
keep components
from rotating.
Leave the screw a ¼ turn from tight
to allow components to rotate/pivot.
OR