Stretching Machine
You will need:
PVC pipe
PVC joints
Wood
Screw rod
Screw nut
Measure the Length and Cut It Out.
Cut and Drill
Cut out two pieces of wood and drill 3 holes on each piece.
Drill Holes
Drill holes on the PVC pipes too.
Measure and Cut
Measure and cut out 3 screw rod.
Finished
Put the woods and the PVC pipes together with screw rods and nuts and you should end up with something that looks like this.
Testing
Tested by different users.