Author Archives: CA



The key stock from the motor shaft came off; It was not the proper size and after the constant vibrations, it slid off and fell into the speed reducer.

Dominic Martinez 3

The Mechanical Engineering Department’s CLT Dominic Martinez suggested powder coating the key to increase the thickness of the piece.


I used a powder curing oven for the first time.

key way 1

After two coats of powder I added a few thousandths of an inch to the thickness of the key. The key no longer slides off of the motor shaft. The motor has been reattached to the speed reducer and is reverse acting grate is running back to normal.


Over the weekend Professor, Joshua, Sharon and myself helped moved the forward and vibrating grate to room 511A. Professor Berri has allowed us to clear the space there to continue our work giving us more room to do things.

We performed a test run of the vibrating grate and used the raspberry pi and monitor to observe the movement. After 15-20 minutes the motor gave out on us. We purchased a used one online and the gear and the spindle came off of the Speed reducer body. Before it wasn’t an issue because it was assumed to be in tact but because of the heavy vibration coming from the motor we realized after the fact that it wasn’t screwed on at all allowing it to come off after a while. This occurred over the weekend.

On Monday, Lynne, Sam, Alice, and I went to home depot to buy the necessary bolt and nuts to keep everything in place. Sam and I were able attach the bolts and nuts on the motor and speed reducer. We also added an L-brace to provide stability between them.

Yesterday Professor, Joshua ,  and myself finally completed the assembly of the server.

Yesterday Joshua and I were able to install attachments to the L-brace connected to the motor and speed reducer to create more stability.


Spring Break

Hopefully you are all enjoying your Spring Break.

Over the weekend and today we continued our work. Our combustion chamber beds were reorganized thanks to Masa, Joshua and Sharon. We began preliminary experimental work over the weekend and although we successfully did a ten minute test run, we ran across problems with the speed reducer.

Today, we bought some items to resolve the issue and today everything seems to be running well. Thanks to Lynne, Alice, and Sam for their contributions for helping out.