Week Seven A

Lots of progress this week! So far we have mounted our water sampling device (the syringe) and connected the plunger to a motor with fishing line. The motor spins, pulling the syringe plunger out, which will in turn draw the water sample into the syringe tube.

Below are some pictures and videos of the syringe and string attachment sampling system. Look for another post this week describing any other modifications!

The Mounted Syringe 

The Mounted Syringe on the SeaPerch

The String Attachment and Motor Pull Open the Syringe

The String Attachment and Motor Pull Open the Syringe: Take Two

Week Six

Further testing this week determined that the wires were not properly inserted in the jack and the circuit board was not the problem. The wires will be reinserted or an Ethernet cable will be utilized

A list of additional parts was made to purchase or acquire.  A device to mount the syringe onto the SeaPerch was purchased. Fishing line and a hot glue gun were acquired. We are still in need of more small bolts used to attach the propellers to the motors. In the coming week we will focus on finishing the assembly of the modified SeaPerch, adding on the syringe mount, syringe, string attachment, and additional motor. Below is an image of the hardware that will be used to attach the syringe to the SeaPerch frame.

Syringe Mount