Week 25 - lglik/Portfolio GitHub Wiki

02/25/19 - 03/01/19

Day One:

My recovery process has been very slow, so I'm only at school for a little bit each day. Today, I reviewed my schematic, how relays work, and the current wiring setup. To prepare for changing out the wires, I uninstalled the old batteries and disconnected them from the project. This way, I would not be able to accidentally hurt myself while working on the wiring. I also made the labeling nicer on the schematic.

Day Two:

Absent.

Day Three:

I wanted Mr. Harlow to check my work on the schematic so I exported it and then printed it out using the copy machine on an 11 x 18 paper so that the whole schematic could be on one page, but not be so small that it could not still be read and understood. Before, I showed the schematic to Mr. Harlow. I checked my logic to make sure that the way the control signal is sent and which wires when to the normally closed terminals and which went to the normally open terminals made sense. It was a good thing I checked because there was an error. With my current design, I had accidentally made it so that either all the batteries were being used or none of them were. This is obviously an issue, so I fixed the schematic and then reprinted it. Mr. Harlow approved so I began to figure out how I would actually implement these changes.

Day Four:

I began today to actually start to make physical changes to the wiring. I carefully pulled out/unplugged all the wires from the relays, making sure to keep them in such a way that I could tell where they used to be plugged in. While it might have been possible to use the same wires, I wanted to use wires that were exactly the right length to make the project as neat and tidy as possible. I found a box of wires, some of them crimped or in connectors, from when the Engineering Academy participated in FRC (FIRST Robotics Competition). Apparently, the robot had used many of the same connectors and wires that I would need to use which was very efficient. I decided that I would try to do all of the power wires first and do the ground and signal wires after that. I started cutting and crimping the first few wires.

The new schematic for the battery wiring.

Day Five:

Absent.