4/10/14 Trebuchet- Gunawork, Nathan, Jackson

Here we have our towel (that'll be used to contain the soccer ball) and the PVC pipe for the weights. Once again we've shortened the pipe because it would've left a gap between the cap and the weights (which could prevent the swinging arm from a strong launch). Between now and the next building day we need to figure out the launch mechanism and something to use to tighten up the upper PVC pipe. 

3/28/14 Trebuchet- Gunawork, Nathan, Jackson

The picture shows what we've built in as the base track. We measured the two wood sticks and adjusted one of them to make sure it's a good fit. Then we inserted them at the base centered and marked their position before nailing in from both ends. 

3/26/14 Trebuchet- Gunawork, Nathan, Jackson

On this building day, we shortened the PVC pipe that'll be holding the weights.  We estimated and decided to cut a portion off, because we didn't want an open space between the weights and the end caps. Tomorrow we'll start building a track that's going to be at the base of the frame when the swinging arm slides the ball through the loop of the sling shot.