LIDDE Loupes

Weekly Updates

Click a week card to jump to the detailed section below.

Pre Fall 2025 — Initial Investigations

Date range: Summer 2025

Summary

  • PM Figure out teams vibe and talked with initial stakeholders
Details
PM

Project Management

  • Meeting with Lili's URA professor
    • Learned about end effectors and social robotics
    • Advised: here is a solution, research a need for it
  • Talked with Nat's Dad about Medtech needs and brainstorming
    • Improving single-use items in the operating room
    • Re-designing cleaning processes that rely heavily on human involvement
    • Sorting out single-use vs. reusable items
    • Surgical loupe redesign for improved ergonomics and functionality

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Week 1 — Finalize Team and Project Proposal

Date range: Sept 1 - 7, 2025

Summary

  • PM Problem Exploration, Outreach, Project Infrastructure
Details
PM

Project Management

Key Takeaway for the Week

We are exploring 5 ideas and plan to narrow it down to 2 after considering many factors including testing feasaibility, problem scope, risk, etc. Li Ion Battery fires seem to be a huge issue for many reasons...but what can we do about it? Stay tuned!

Ideation and Problem Exploration

  • Team held an ideation session at Grad House over pizza and beer.
  • Each member prepared a slide on a chosen problem space:
    • Nick: Lithium-ion battery fires
    • Natalie: Surgical loupes
    • Nathan: Artificial pollination
    • Lili: Mining and fish farms (shifted focus to fish farms)
    • Chelsea: Women's health (vaginal diagnostic testing)

Outreach and External Input

  • Nick spoke with two Waterloo firefighters (Ryan and Wendy).
    • Key takeaways from Wendy:
      • Lithium-ion fires are a major concern, discussed almost daily.
      • Clear training and equipment gaps; strong demand for solutions.
      • High interest in collaboration with our team.
      • Seen as Waterloo's #1 local development need with growing population.
      • Example: crew had to throw a burning scooter off a balcony after thermal runaway.
      • End-of-life disposal of li-ion batteries flagged as a major issue.
    • Wendy is facilitating a meeting with the Deputy Fire Chief of Waterloo and Platoon Chief of Waterloo (Date TBD).
  • Nick also connected with Patrick Durham (Michigan firefighting captain, StacheD Training on YouTube, Mechanical Engineering degree).
    • Confirmed training quality varies heavily and readiness depends on it.
    • “Letting it burn” often only burns gases; the fuel source remains.
    • FSRI researching water runoff impacts (HF, heavy metals).
    • Malaysian study shows high heavy-metal runoff; NIOSH studying long/short-term health effects.
    • EV end-of-life is highly uncertain; no established process.
    • Expressed interest in acting as an advisor/partner.

Infrastructure Setup

  • Nick: Built team website.
  • Chelsea: Created team Confluence page.

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Week 2 — Define the Business Case

Date range: Sept 8 - 14, 2025

Summary

  • PM Problem Scoping, Industry and Expert Input, Funding Research, Infastruture Improvements
Details
PM

Project Management

Key Takeaway for the Week

We narrowed our focus to two frontrunners — lithium-ion fire suppression and surgical loupes. The team is leaning toward the fire suppression space despite the higher risk and uncertainty, as the potential impact is exciting. At the same time, we are continuing to explore funding and advisory support, keeping surgical loupes as a strong alternative if feasibility becomes a barrier.

Project Narrowing & Scope

  • Consulted with professors, who emphasized testing feasibility as a key filter.
  • Ruled out fish, pollination, and women's health due to difficulty or lack of expertise.
  • Used a decision matrix to narrow frontrunners to lithium-ion fire suppression and surgical loupes.

Research & Expert Input

  • Met with Prof. Vinny Gupta:
    • Noted suppression research is often “too late,” though firefighters stressed they feel unprepared.
    • Sparked ideas around safer building materials and assistive tech for firefighters.
    • Identified possibility of leveraging ongoing fire lab experiments for testing feasibility.
  • Natalie researched potential professor references for the surgical loupe project.

Funding & Opportunities

  • Applied to Cornerstone with both frontrunner ideas.
  • Applied to Upstart with lithium-ion fire suppression.
  • Explored internal and external funding opportunities and planned for upcoming deadlines.

Team Infrastructure & Admin

  • Advanced team website to ~60% completion.
  • Attended Cornerstone ideation session (minimal impact).
  • Planned upcoming meetings and aligned on next steps.

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Week 3 — Requirements, Constraints, Criteria

Date range: Sept 15 - 21, 2025

Summary

  • PM Outreach, Business Case, Patents, Requirements/Constraints/Criteria
Details
PM

Project Management

Key Takeaway for the Week

The team shifted focus toward the surgical loupes project, prioritizing it over fire suppression due to stronger access to medical experts, clearer testing opportunities, and immediate feedback channels. We made major progress in outreach, networking, and refining the problem space while continuing to develop infrastructure and analysis tools.

Outreach & Expert Connections

  • Emailed Profs. Natalie Hutchings and Jonathan Kofman to discuss surgical loupes focus and potential guidance (@Chelsea Dmytryk).
  • Emailed Prof. Vinny Gupta for further input (@Nathan Kindred Rowe).
  • Met with Dr. Victor Tsang (Nat's Dad):
    • Clarified differences between open vs. laparoscopic surgery.
    • Explored current loupe usage and ergonomic improvement opportunities.
    • Discussed what tools could meaningfully improve OR procedures.
  • Connected with Dr. Ian Yu (Podiatrist); future meeting being set up (@Natalie Tsang).
  • Connected with Mark Greget (NuLoupes); meeting scheduled for Thursday, Sep 25th (@Natalie Tsang).
  • Sent outreach email to Robert Amerlard (UW alum @ Intuitive Surgical) to discuss robotic surgery (@Natalie Tsang).
  • Sent inquiry to VIP Lab at UW (link).
  • Trying to connect with a neurosurgeon at SickKids Hospital (@Nicholas Drazso).

Project Management & Analysis

  • Attended Cornerstone session on Sep 17, 2025 (@team).
  • Drafted and refined needs analysis and problem statement (@team).
  • Aligned objectives, constraints, and selection criteria across key categories:
    • Ergonomics
    • Efficiency
    • Data collection
    • Optical quality
    • Education
  • Collected 2 patents related to surgical loupes and optics (@Lili Strong).
  • Set up meeting with UW's robotic surgery lab (@Lili Strong).
  • Team decision: prioritize surgical loupes over fire suppression due to greater accessibility of medical experts and more feasible testing opportunities (@team).

Team Infrastructure

  • Updated team website (@Nicholas Drazso).

Requirements, Constraints, Criteria

Need Functions & Design Goals Requirements Constraints Criteria
Ergonomics
  • Maintain neutral posture to reduce musculoskeletal strain.
  • Remain lightweight and compatible with operating room workflow.
  • Neck flexion angle during use ≤ 20° [degrees]
  • Loupe must maintain center of gravity within ±1 cm of head centerline [cm]
  • Allow for prescription inserts as per industry standard [pass/fail]
  • Weight < 500 g [g]
  • Center of mass < 5 cm from forehead [cm]
  • Device temperature rise ≤ 5 °C during operation [degrees celcius]
  • Ingress protection ≥ IP64 [pass/fail]
  • Longevity of comfort
  • General comfort
  • Device weight [g]
  • Fit adjustability [mm]
Data Streaming
  • Enable sharing of user’s view with operating team for increased efficiency.
  • Diagnostic overlays.
  • Education improvement.
  • Latency of shared video display < 1 s [s]
  • Shared display resolution ≥ 1080p at 60 fps with colour accuracy ΔE < 3
  • One-action start within 2 s from sterile controls [pass/fail]
  • Shared view maintains surgeon’s magnification [pass/fail]
  • Allow recording in full resolution [pass/fail]
  • Disinfectable on all surfaces
  • ≥ 1 hr continuous operation on a single charge.
  • EMI compliant (IEC 60601-1-2).
  • Wired/wireless display compatible.
  • Cannot interfere with users' display.
  • Latency & video quality (ms, fps, resolution).
  • Run time [h]
  • Safety in OR
  • Display overlay functionality
Data Collection
  • Capture pictures and video for AI training, medical records, and education.
  • Take 1 photo on command.
  • Save 1 photo to memory.
  • Store 10 s video at 1080p.
  • Handsfree activation for user.
  • Minimum storage 256 MB on device.
  • Image Quality
  • UX
Optical Quality
  • Adjustable, high-quality magnification.
  • Provide 3D and wide FOV.
  • Low latency & high colour accuracy.
  • Two or more magnification levels (e.g., 2.5×, 5×) adjustable in < 2 s.
  • FOV at least industry standard.
  • Adjustable brightness control (ON/OFF).
  • Modular LED headlight ≥ 30 kilolux.
  • Depth of field ≥ 20 mm at 50 cm working distance.
  • Magnification switching must not require hand removal from sterile field.
  • Optical distortion ≤ 5% at 2.5× magnification.
  • Field of view
  • Depth of view
  • Ease of adjusting headlight brightness [# clicks]
  • Headlight brightness [kilolux]

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Week 4 - Morphological Chart and Patents

Date range: Sept 22 - 28, 2025

Summary

  • PM RCC refinement, stakeholder meetings, patent search, morphological chart
Details
PM

Project Management

Project Management

Key Takeaway

This week, the team solidified its identity with the DigiLoupes name, advanced technical ideation through morphological charts and patent reviews, and built strong momentum in stakeholder outreach—positioning us for well-informed design decisions in the weeks ahead.

Team Progress

  • Finalized product name: DigiLoupes (@team)
  • Refined requirements, constraints, and criteria (@team)
  • Created morphological chart drawings (@Nathan Kindred Rowe)
  • Developed four design concepts for morphological chart (@team)
  • Completed patent research (@Lili Strong)

Stakeholder Engagement

  • Met with Dr. Marc Sakwa and Dr. Andrew Nguyen to better understand stakeholder needs (@Chelsea Dmytryk, @Natalie Tsang, @Nicholas Drazso, @Nathan Kindred Rowe)
  • Met with Mark Greget (NuLoupes) (@Chelsea Dmytryk, @Natalie Tsang, @Nicholas Drazso, @Nathan Kindred Rowe)
  • Scheduled meetings with additional stakeholders (@Natalie Tsang)
  • Attended biomedical stakeholder workshop (@Chelsea Dmytryk, @Natalie Tsang, @Nathan Kindred Rowe, @Nicholas Drazso)

Team Development & Admin

  • Attended Cornerstone session (@Nathan Kindred Rowe)
  • Applied for Engineers of the Future Fund (@Chelsea Dmytryk, @Natalie Tsang, @Nicholas Drazso, @Nathan Kindred Rowe)
  • Investigated Gantt chart software (@Chelsea Dmytryk, @Nicholas Drazso)
  • Updated website (@Nicholas Drazso)
  • Created team Confluence page (@Chelsea Dmytryk)

Functional Component Ideation

Component Identifier Components 1 2 3
A Head Attachment Glasses Elastic Adjustable Headset
B Camera Buy Stereoscopic Camera Single Camera Two Cameras + Software for 3D
C Display 2 screen 1 screen + divider Projectors onto lens
D Internal Communication Wired Wireless Hybrid
E Streaming to OR display Wired Wireless
F Control Voice Foot Pedal 3rd Party
G Power Battery box Wired to wall Integrated on head
H Illumination LED chip Headlight

6 Design Concepts

Cheap

  • A2 - Elastic Head Attachment
  • B2 - Single Camera
  • C2 - 1 screen + divider
  • D1 - Wired Internal Communication
  • E1 - Wired Streaming
  • F3 - 3rd Party Control
  • G2 - Wired to wall Power
  • H1 - LED chip Illumination

Ergonomic

  • A3 - Adjustable Headset Head Attachment
  • B2 - Single Camera
  • C3 - Projectors onto lens
  • D2 - Wireless Internal Communication
  • E2 - Wireless Streaming
  • F2 - Foot Pedal Control
  • G1 - Battery box Power
  • H1 - LED chip Illumination

Optical Quality

  • A3 - Adjustable Headset Head Attachment
  • B1 - Buy Stereoscopic Camera
  • C1 - 2 screen Display
  • D1 - Wired Internal Communication
  • E1 - Wired Streaming
  • F2 - Foot Pedal Control
  • G1 - Battery box Power
  • H2 - Headlight Illumination

Data Streaming

  • A1 - Glasses Head Attachment
  • B1 - Buy Stereoscopic Camera
  • C2 - 1 screen + divider
  • D3 - Hybrid Internal Communication
  • E1 - Wired Streaming
  • F2 - Foot Pedal Control
  • G1 - Battery box Power
  • H2 - Headlight Illumination

Lightweight

  • A1 - Glasses Head Attachment
  • B3 - Two Cameras + Software for 3D
  • C1 - 2 Screen
  • D3 - Hybrid Internal Communication
  • E2 - Wireless Streaming
  • F2 - Foot Pedal Control
  • G1 - Battery box Power
  • H1 - LED Chip Illumination

Aussie

  • A3 - Adjustable Headset Head Attachment
  • B3 - Two Cameras + Software for 3D
  • C1 - 2 Screen
  • D3 - Hybrid Internal Communication
  • E2 - Wireless Streaming
  • F2 - Foot Pedal Control
  • G1 - Battery box Power
  • H1 - LED Chip Illumination

Patent Review (3)

US 10,620,460 B2 - Hands-free Spectrally Tunable Smart Loupe

View PDF

  • Date of Patent: Apr 14, 2020
  • Inventor: Christopher R. Carabin
  • Assignee: Rancho El Toston, LLC

Problem/Motivation:

  • Lighting in existing loupes is fixed/manually controlled
  • Stages of procedures can require different lighting (curing resins, color matching)
  • Manual adjustment of touching loupe interferes with surgical field
  • Direction of light vs optical axis of magnifier can misalign/require re-adjustment if mount is bumped
  • Many devices put weight on nose/small contact points that cause discomfort
  • Open battery compartments or openings can harbor pathogens

Core Invention/Claims

Frame/Mounting
  • Frame that holds lenses and supports lighting module
  • Frame that presses against wearer's head to better distribute weight
Spectrally Tunable Lighting Module
  • 1+ LED with varying spectral characteristics (wavelengths/intensities/color temperature)
  • Adjustable lighting module with degrees of freedom to align with light with magnifier's optical axis
  • Lighting with different colors to achieve tunability (RGBW, cool white/warm white etc)
Control Module + Hands-Free Interface
  • Control module that takes lighting commands and drives the LED module accordingly
  • Hands free interface that allows user to control lighting without manually adjusting components (voice commands, gestures, other transducers)
  • Optional communications interface to receive lighting commands remotely/integrate with external systems
Power/Battery Module
  • Battery embedded within frame
  • Charging circuitry to recharge without needing open covers that compromise hygiene
  • Frame and module layout to minimize openings or seams

US 12,044,858 B2

View PDF

  • Date: July 23, 2024
  • Inventor: Tomer Gera
  • Assignee: Augmedics LTD

Problem/Motivation

  • In surgical resection (specifically tumor resection), beneficial to visualize fluorescent dies in real time .
  • Standard surgical loupes do not provide fluorescence imaging
  • Existing fluorescence imaging devices are often bulky, microscope based, or not integrated with wearable loops.

Core Invention/Claims

  • Wearable loupe with dual illumination and imaging one for regular illumination, one for fluorescence excitation. Camera captures same optical path as the user, surgeon sees what camera sees.
  • Real time visualization of tissue fluorescence (tumor margin identification/resection guidance)
  • Compact integration

US 9,729,831 B2 - Wireless Surgical Loupes

View PDF

  • Date of Patent: August 8, 2017
  • Assignee/Inventor: Sony

Problem/Motivation

  • Surgeons use optical loupes during delicate surgeries, providing magnification but lacking ability to integrate digital information (video capture, remote viewing, overlays)
  • Need to augment loupes with digital capabilities - capture through the lens view, transmit it, and overlay/display relevant patient data
  • Combining optical magnification with digital/wireless interactivity could enhance surgical workflows, education, documentation etc.

Core Invention/Claims

  • Lens + Half mirror/beam splitting optical path
  • Light from lens gets split between surgeons eye and camera
  • Wireless transmission and data flow
  • device can display patient information on mini-display in the loupe
  • Through-the-lens display + overlays
  • System capable of overlaying patient or monitoring information in user's optical path via projection through or reflection off the half mirror
  • 3D Stereo imaging
  • Optional embodiment: 2 separate lenses/images can be captured to allow stereoscopic or 3D imaging

Comparison — Relative Merits and Demerits VS Existing Patents

Patent Merit Demerit
US 10,620,460 B2 Our concept extends beyond illumination into streaming, collaboration, data capture, and AI driven workflows. This patent is essentially a lighting solution, ours is a multi-function visualization/communication platform. General form factor (loupe with integrated electronics) is similar, so need to emphasize functionality beyond lighting.
US 12,044,858 B2 System is task specific (fluorescence-guided surgery), ours in workflow-agnostic.
We also emphasize sharing the live view with others, not just enhancing surgeon's perception
Both rely on integrating digital imaging into the loupe. Creates risk that system could be interpreted as a generalized version of what this patents already does, rather than a novel invention.
Since both are head mounted loupes with imaging sensors, the hardware integration concept is similar
US 9,729,831 B2 Focus is on capturing/streaming what surgeon sees and optionally overlaying vitals
Ours focuses on collaborative use + education + AI dataset generation, not just remote viewing
We integrate sterile usability, simple activation, compatibility with surgical workflow
This prior art covers beam splitter optics, camera integration, wireless transmission, and overlays. On the surface, our device would be seen as another wireless streaming loupe.
The granted claims are relatively broad around wireless transmission of the surgeon's view which narrows our space.
Hints at remote viewing for training/teaching. We need to draw a sharper line to show novelty in structured data capture/workflow integration rather than just recording.

Patentability Assessment

Novelty

  • None of these patents describe a surgical loupe as an integrated collaboration + education + AI platform
  • Prior art focuses on illumination, specialized fluorescence, or wireless streaming
  • The combination of ergonomic design, general-purpose streaming, and AI-oriented data capture in a single sterilizable loupe is not disclosed on these patents

Utility

  • Design addresses well-documented clinical problems
  • Surgeon musculoskeletal strain (ergonomics)
  • Need for teaching tools (streaming)
  • Modern AI-driven medicine (structured data capture)
  • Device clearly useful in surgery, education, and research

Non-Obviousness (Ingenuity)

  • Though each piece exists separately, it's not obvious to combine them because:
  • Prior art does not suggest that surgical loupes should double as educational broadcast tools or AI dataset generators
  • Integrating ergonomics, optics, streaming, and sterilization in one wearable requires non-trivial engineering trade-offs (heat, weight, optics, networking)

Overall

  • Our design appears patentable if our claims are framed around:
  • Integration of functions (ergonomics, streaming, AI/data capture, workflow compliance)
  • New use cases (collaboration, education, AI training)
  • Non-Obvious System Architecture (sterile, wearable, ergonomic, multipurpose device)

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Week 5 - Design Selection

Date range: Sept 29 - Oct 5, 2025

Summary

  • PM Design decision matrix, stakeholder outreach
Details
PM

Project Management

Key Takeaway

Strong stakeholder traction and steady design convergence this week: we met with multiple experts (dentistry & medical imaging), finished the morphological chart and a first-pass design matrix, and kicked off lighting feasibility—setting up clear next steps for the compiled design.

Meetings & Stakeholder Engagement

  • Set up meeting with Dr. Syed Rahman (Dentist) (@Nicholas Drazso)
  • Met with Dr. Syed Rahman (Dentist) (@team)
    • Main takeaway: Dentists would likely use our product; note that some dentists wear loupes all day.
  • Met with Robert Amelard (Staff Software Imaging Engineer @ Intuitive) (@team minus Lili)
  • Attended Cornerstone session 2 (@Nicholas Drazso, @Chelsea Dmytryk)

Team Progress

  • Re-decided on project management software (@Chelsea Dmytryk)
  • Completed morphological chart (@team)
  • Completed design matrix and selected optical quality/aussie hybrid...need more feasibility research to conclude exact design. See week 4 design concept and morphological chart for details of these designs. (@team minus Lili)
    📄 Download Design Matrix (PDF)
  • Completed design matrix and selected an optical quality/aussie hybrid...need more feasaibility research (@team minus Lili)
  • Preliminary investigation into lighting source feasibility (@Nicholas Drazso, @Lili Strong)

Challenges / Issues

  • Still exploring a new product name since we discovered one that matches ours almost exactly.
  • Could not finalize compiled design for a few categories due to insufficient information.

Plan for Next Week

  • Plan for PDP presentation.
  • Advance the compiled first design plan:
    • Begin camera sourcing
    • Confirm LED chip / headlight
    • Confirm wired / wireless / hybrid approach

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Week 6 - PDP Prep

Date range: Oct 6 - Oct 12, 2025

Summary

  • PM Created PDP Presentation
Details
PM

Project Management

Key Takeaway

We all built the preliminary design presentation and researched different components where necessary.

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Week 7 - Reading Week

Date range: Oct 13 - Oct 19, 2025

Summary

  • PM Studied for other courses and practiced presenting PDP.
Details
PM

Project Management

Key Takeaway

We all built the preliminary design presentation and researched different components where necessary.

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Week 8 - PDP and Detailed Design Work

Date range: Oct 20 - Oct 26, 2025

Summary

  • PM Presented PDP...WENT GREAT!! Started detailed design for each subteam.
Details
PM

Project Management

Key Takeaway

We all built the preliminary design presentation and researched different components where necessary.

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Week 9 - Detailed Design

Date range: Oct 20 - Nov 2, 2025

Summary

Details
ME

Mechanical

We were able to talk to AR/VR design team lead to get recommendations for commmon mistakes and good practices as well as some names of open source projects.

Nick performed jetson thermal calculations, and Nathan performed foot pedal force calculations. There are many other calculations to be done.

EE

Electrical

Determined components and communication between as well as rough power budget. Having difficulties sourcing displays since most that meet our spec are only sold to OEM and/or require NDA to purchase and nobody is answering us.

Lili calculated the power budget and developed overall system architecture. Nathan developed the foot pedal PCB with wifi/bluetooth connectivity.

SE

Software

Natalie and Chelsea developed flow charts for system architecture.

PM

Project Management

We did not win Velocity Cornerstone or get selected for Upstart which is a hude hit on potential funding for us. We are being bottlenecked by this and are figuring out solutions.

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Week 10 - Design Validation

Date range: Nov 3 - 9, 2025

Summary

  • ME Purchasing
  • EE Development
  • SE Implementation
  • PM Meetings
Details
ME

Mechanical

We realized the only optical solutions out there with birdbath optics even close to fitting our budget were entry level AR glasses. We purchased a pair and will tear them down and fit them to our product.

EE

Electrical

Met with professor Zelek from Vision Lab and he felt as if the Jetson was too intense. After meeting with software team, we decided the RPi CM4 would be a better fit for our product for many reasons including power draw, thermals, and size. A CM3 is currently being used for testing although bandwidth issues are arising. Therefore, the CM4 will be purchased soon, saving us approximately 400$ relative to the Jetson.

SE

Software

Software was able to display 2 different images on to the purchased AR headset which confirms feasibility of our concept. The remaining blockers are finding cameras that enable us to meet our specs and validating our board can push that much data. Exciting day though!!! Great work Chelsea and Natalie!

PM

Project Management

Meetings with Professor Zelek from the VIP lab discussing image processing capabilities. Also discssiongs internally about pivoting in case we could not find a solution to our part sourcing problem. We decided to keep going for now with many off the shelf components and need to relook at what we will be building vs integrating.

Software screenshot example

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Week 11 - Finalize the Design

Date range: Nov 10 - 16, 2025

Summary

  • ME Headmount design
  • EE Compute module selection and compatability checks
  • SE Proof of concept
  • PM Funding applications

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Week 12 - FDP Prep

Date range: Nov 17 - 24, 2025

Summary

  • PM Developed, practiced, and presented finalized design to class mates and professors.

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Week break - Exams and Break

Date range: Nov 25 - Jan 4, 2026

Summary

  • ME Headmount design
  • EE Board design
  • PM Funding applications

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Week 13 - Board design

Date range: Jan 6 - 11

Summary

  • ME Headmount design
  • EE Board design
  • PM Norman esch application

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