Soldering Connections and Evaporator Peltier Work

Soldering Connections and Evaporator Module - Peltier Assembly

Date: 4.25.18
Location: Logan HS
Time: 1.5 hours
Students: Paige, Caitlin, Alex and Gabe
Goal: Begin soldering extension wires on pumps and get peltier for evaporator ready.

We took some class time today to work on the DM. The students that were ahead had completed their state machine on Multisim helped out getting wires soldered, PVC pipe inlets and outlets glued and the evaporator peltier module ready.

We needed a day like this to get some of the detail work done that just takes time to do. A work night is still planned for Thursday night.

A frame for our control board has been made out of plywood.

A piece of plexiglass over the top of the control board allows students to see wiring and is easy to drill through. This will be mounted on the DM soon as we need to begin hooking up switches.

Alex using epoxy to glue in the hose barbs in the condenser and evaporator reservoir tanks.

Paige and Caitlin soldering up extension wires on the two pumps.

Gabe reinforcing the wires running from the peltier with shrink wrap and then foil tape to resist heat. This will be part of the evaporator module so we expect it to heat up considerably and we wanted to protect the wires.

Gabe putting on Arctic Silver Thermal Paste on the hot side of the peltier chip. We hope to improve the thermal conductivity. The thermal paste is thick and difficult to work with and clean up.