P16482: Breadfruit grinder
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Subsystem Design

Table of Contents

Team Vision for Subsystem-Level Design Phase

Plans for this phase:

Main accomplishments this phase:

Feasibility: Prototyping, Analysis, Simulation

Baking Flour Sifting

We used the sifting screens we purchased to sift baking flour. This will allow us to:

Please read about our testing protocol and results.

Grain size distribution of baking flour

Grain size distribution of baking flour

Things to Test for Next Phase

Updated Feasibility Calculations

We also completely dehydrated and weighed breadfruit samples to calculate actual water percentage, which was 76% water.

See our raw sample data, as well as our breadfruit requirement calculations with updates and notes.

Drawings, Schematics, Flow Charts, etc.

Solidworks Modeling of Current Design

We began with the auger, as it will require the most iteration out of all our subsystems.

3D-printed auger prototype

3D-printed auger prototype

We will likely have to adjust the pitch based on feed rate testing, to be completed.

We then modeled the pipe and the grind stones, and assembled them to form the central portion of the grinder prototype.

Assembly including grind stones, pipe, and auger

Assembly including grind stones, pipe, and auger

We also sketched a rough idea of how the collection system will channel flour from the stones into the sifting screens and bucket.

Preliminary sketch of collection system

Preliminary sketch of collection system

Bill of Materials (BOM)

We've established a current bill of materials that also keeps track of expenses.

Draft Bill of Materials

Draft Bill of Materials

Updated Risk Assessment

Updated Risks

Updated Risks

Main changes:

See the live document here

Design Review Materials

Notes from the review will go here.

Plans for next phase

Three week plan:


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