Week 3 Making the Lab

Assignments

Homework:

  • Install and Test at least 2 different 3D Applications.
  • Hands-on Group Work: Design and Make a CleanBox
  • Read BHA_Stirrer BoM, find out where to get the parts in Japan (clone repo, update BoM)

Extra Credit:

  • Install and Test as much 3D Apps as you can.
  • Go to Akihabara and get the parts.
  • Assemble the BHA Magnetic Stirrer

Install and Test at least 2 different 3D Applications.

I chose blender and Fusion 360, which I am relatively familiar with. I edited the PocketPCR case.

blender

–2022/03/28 update

–

I had already installed it, but the latest version can be downloaded from the official website.


Open blender


Import “PocketPCR_Case.stl”
*For some reason, the length was loaded as 105 meters.


Adjust the size and add the text.


3D printed.

Fusion360

–2022/03/28 update

–
I also had already installed this, but can be downloaded from the official website. It is free for student faculty and staff.


Open fusion


Open (In fusion, open stl file from “OPEN”, not “IMPORT”) PocketPCR_Case.stl


Add the text.


3D printed.

Hands-on Group Work: Design and Make a CleanBox

March 15, from 5:00 p.m.
Sakuragi-san, Kawada-san, and me, and Tsuchiya-san and Urano-san split into two groups to create conceptual clean-benchs using cardboard, a hair dryer, plastic bags, and ventilation fan filter that resembled HEPA filter.


Tsuchiya-san and cardboard


rough sketch


Our clean-bench and Kawada-san and Georg-san

We asked a person who was actually doing the experiment in the lab to use it and give us her impressions.

Comments:

  • “It may not need the holes on the side.”
  • “The box is too big.”
  • “It’s dark.”

Reflection Points:

  • We should have built a normal clean bench instead of trying to make it unique.

Read BHA_Stirrer BoM, find out where to get the parts in Japan (clone repo, update BoM)

Since I have access to the university’s fabrication lab, I actually built it.

First, I assembled the model with reference to BioClub / BHA_Stirrer.

I wanted to keep the configuration simple, so I used a circuit with only a fan, a potentiometer, and a power supply.


👎

👍
At first, when the magnet was attached directly to the fan, the motor did not work and the fan did not turn. After trying different distances, I found that the magnet and fan need to be attached about 1 cm apart.


It worked on a breadboard.


Rough sketch


The box was designed with MakerCase.

It’s acting somewhat strange, but it worked anyway.

Written on March 15, 2022