2. My problem and solution
• How to make a machine to help old
people be able to play fatch with there
dog.
• To make a tennis ball launcher to help old
people that have a bad arm to play with
there dog.
3. Why I chose this
• I chose this because i wanted to see how
this could help people with bad arms and
disabletes be able to have fun and keep
thier dog active at the same time.
4. What i enjoyed most
• I enjoyed most was building the tennis ball
launcher and finding the materials for it.
I also enjoyed testing the tennis ball
launcher.
5. Explanation and procedures
• The steps i used
• design the launcher
• buying the materials
• building the materials
• testing my tennis ball launcher
6. • How to design a tennis ball launcher
• How to build and test a tennis ball
launcher
What i learned
7. Things i would do different
• Building a bigger tennis ball launcher
• Building a more high powered tennis ball
launcher
8. The most difficult part
• Was building the tennis ball launcher
• Puting the zipties on the launcher
