Week 17 – Week 17 – Applications & Implications – Propose a Final Masterpiece

Weekly Summary

From this week onwards it's 100% concentration on the Final Project. And 100% concentration on finishing the Evaluation Process.

Incubator Modules for the Home Bio Lab

• Configurable
• Internal Heating & Cooling
• Networked & Monitoring

Example 1: Suspended Incubator with Room Temperature Adjustment

• Incubator Module x2 (Top & Bottom)
• Suspended from Ceiling on Lightening Connector/Rail
• Payload: Petri dishes x10
• Organism: Escherichia coli
• Optimal Temperature: 37°C

Example 2: Shelf Incubator

Use existing shelf infrastructure (Muji, Ikea, etc) for incubation.

• Incubator Module
• Payload: Petri dishes x40
• Organism: Janthinobacteriun lividum
• Optimal Temperature: 25ºC

Individual Assignment

This week's assignment is to propose a final project masterpiece that integrates the range of units covered, answering the questions below. Most of it will also be in a similar form and shape on the Final Project Page.

Timetable and Tasks

I am laying out the tasks and try to find them in a timetable, being mindful of supply-side time management. See also the separate Schedule Page for an wide view on the Final Project Schedule.

Tasks

• Test Print 3D Structure
• Make H-Bridge Test Board
• Test Fan, Peltier, Motor
• Model Enclosure
• Order Parts
• Work on Documentation & Nueval

Timetable

How is it called?

I added this questions:

• Configurable Modular Incubator
• CMI2000
• Modular Incubator
• ModInc
• Modulink
• Mocubator, Mokubator
• CMI3000
• Incubator Module
• IncuMod, InkuMod
• Incubible?
• Incubator Elevator
• Incubator Modules
• ...

What will it do?

My project is a Configurable Modular Incubator for the Home Bio Lab. A single, atomic incubator module consists of:

• Internal Temperature Sensor
• External Temperature Sensor
• Peltier Device for Heating/Cooling
• Heatsink and Fan for Heat dispersal
• OLED Display
• Time-of-Flight Distance Sensor

These incubator modules can be combined in a variety of way with existing household shelving to create low-costs, accessible incubators for the Home Bio Lab.

Who's done what beforehand?

Incubators have a long and varied history, starting out as chicken hatcheries, millennia ago. The emergence of biotechnology from the 1960ies onwards.

More recent, DIY examples.

• The Sotacubator from BioClub Tokyo's Sota Kaneko

• The BioHack Academy Incubator from the Waag Society and Pieter van Boheemen

  

• Urs Gaudenz Generic Lab Equipment "Inkubator"

Examples from the extended FabAcademy Archive

Images courtesy of the respected authors.

• Incubator v0.2 http://fab.academany.org/2020/labs/barcelona/students/antoine-jaunard/incubator-v0-2.html

  

• Chicken Incubator http://fab.academany.org/2020/labs/algarve/students/lucio/project_update_2.html

  

• The Museum Display Case of Microbial Life. http://fab.cba.mit.edu/classes/863.16/section.CBA/people/Smith/finalproject.html

  

• HTGAA BioDesign http://fab.cba.mit.edu/classes/S66.19/S66.19/assignments/biodesign.html Not really an incubator, but a George Church Lecture on BioDesign.

• Grow It Yourself (GIY) http://archive.fabacademy.org/fabacademy2017/fablabkamplintfort/students/396/final.html#final

  

What will you design?

I will design:

• 3D Design the Modular Enclose
• Design the PCB
• Design the Software and Interface

I will use an off-the-shelf 12V - 6V DC-DC convertor.

What materials and components will be used? Where will come from? How much will they cost?

Single Incubator Module

Suspension Module

What parts and systems will be made?

Incubator Enclosures:

3D-Printed Incubator Enclosures hold

• Circuit Board
• Internal and External Temp Sensor
• OLED
• Peltier & Heat Dissipation
• Connections to Side Structures and Panel

3D-Printed Side Structures

The Side Structures are also modular allowing for an adaptive height of the suspended incubator. The side structure can be extended or exchanged, changing the height and volume of the Incubator.

Acrylic Enclosure Panels

To save printing time and allow of a modularity in height, the side panels will be laser-cut. A double layer of acrylic panels ensures better isolation.

What processes will be used?

• Enclosures: 2D and 3D Design
• Enclosures: 3D Printing
• Enclosure Panels: Laser-cutting
• Circuit Boards: CNC Milling
• Electronics Design & Production, Input and Output Devices
• Network and Communication, Interface and Application Programming
• Circuit Boards: Milling

Decorative and User Interface Sticker can be made using the Vinyl Cutter. That is Spiral +1.

What questions need to be answered?

3D Printing

• Can I finish 3D Printing in the allocated Saturday/Sunday Time-slots at FabLab Kamakura. Total Printing Time left: 4 x 8 hours: 32 hours

• 3D Printing Strategy: Draft Setting, Fast Failing.

Work Gear Delivery

The Worm Gear Motor I ordered will arrive in the beginning of June, one week before the deadline. I need to work from the specs and dimensions from the data sheet.

How will it be evaluated?

• Ability to keep temperature
• Monitoring and Archiving Temperature records
• Vertical Actuation of Incubator Module
• Grow Micro-organism.

What worked? What did not?

Tests 3D Print the Edge Structures of my incubatorCheck and test for rigidly, stiffness and printing duration

Test Driver Boards for Fan, Peltier and Worm-Gear Motor

Making H-Bridge for Testing

For my breadboard test set-up, I need a couple of H-Bridges to drive the fan, peltier and the stepper motor. Neil's example boards from the Output Week for the single and double H-Bridges are the starting point.

The plan is to make simple boards in Eagle, just the A4953, the capacitors and the pins.

Fábio Pelicano from the FabAcademy 2017 came across the same problem, his solution was to the L5973D part, which has the exactly same footprint as the A4953. (The footprint - with exposed pad - is called: HSOP 08.)

I searched for A4953 with the SamacSys Search Tool, and found the right part.

We learned how to install the SamacSys Library Manager in Week 6.

Mysterious Additional Space in Eagle Export

I am in the process of making a Single H-Bridge Board to test the fans and motors for my final project. I designed in in Eagle, exported in, getting ready for M & M (mods & milling).

H-Bridge Board

How will it be evaluated?

I will be evaluated on how constant and accurate the temperature and growing conditions within the incubator can be kept. Or if it's possible to grow and cultivate micro-organisms in the incubator.

Notes & Links

• https://randomnerdtutorials.com/solved-failed-to-connect-to-esp32-timed-out-waiting-for-packet-header/
• https://randomnerdtutorials.com/esp32-ssd1306-oled-display-arduino-ide/
• https://randomnerdtutorials.com/esp32-multiple-ds18b20-temperature-sensors/
• http://academy.cba.mit.edu/classes/output_devices/H-bridge/hello.H-bridge.44.png
• https://fabacademy.org/2019/labs/kamakura/students/kae-nagano/assignments/week12/
• http://fabacademy.org/2020/labs/kamakura/students/kazuki-yanome/assignments/week11/

Files