Week Eight C

Following testing, we decided that some changes needed to be made to the SeaPerch. The string attachment wasn't very stable, the hot glue resulted in a crooked and falling apart frame, the wire from the depth sensor was getting in the way of the propellers, the attachment of the extra motor was shaky, and the floatation rings were sliding back and forth. The changes made helped to make the submersible more stable and sturdy. Everything is now intact. The submersible can easily be transported between locations as well as it can be taken in and out of the water with fewer mishaps.

The following pictures illustrate the changes that were made to the submersible:

New way of attaching fishing line to the syringe plunger

Another syringe that has been outfitted for our submersible

Closeup of the winding mechanism

Hot glue wasn't holding the SeaPerch together snugly, so we
reattached the PVC with something stronger

The depth sensor wire was getting in the way, so we

taped it down and threaded it along the top of the SeaPerch.

This view of the back of the SeaPerch shows that the

wires now are kept out of the way of the propellers.

The attachment of the extra motor was shaky, so we re-soldered the wires

together and tucked them a safe distance away from the propellers.

Hot glue was used to fix the foam pieces evenly across the beams.