Jihwan Kim

Prototype 1

About design

I had to exclude a lot of things for my first attempt. From the beginning, it was difficult to put in many functions, and I decided to add functions little by little.

I designed my first prototype during computer controlled machining week. It is a key part of my project, where food waste is decomposed. I designed it to use gears to turn the mixing pedal, and I thought it was the first part to test.

Things to Improve

First of all, this part needs to be waterproof because food waste must go into it, and metal must be used to continue using it.

It was much bigger than I thought. Later this size will be reduced.

I will also have to think about where heaters, motors and sensors will be located.

I have to think about how to make the lid.

Prototype 2

CAD Design

Improvements

Made the outer frame and lid.
There is a part where the board and the motor can enter.
A space was created for the timing belt and timing pulley. (The timing pulley is made with a 3D printer.)
And the parts to fix the motor were produced using a 3D printer.
The curved part on the side was broken because the numbers did not fit well in the process of using the shopbot. So, it was replaced with auxiliary parts for 3D printers.

Things to Improve

It is also necessary to use a metal for waterproofing, and the pedal will also be made of metal.

And since there is a gap in the pedal hole, this part must also be supplemented for waterproofing.

It is necessary to devise how the temperature sensor and the soil humidity sensor will be attached from the inside, so that food waste is not disturbed.