The Moody Elevator

CONCEPT

IDEATION FLOW CHART

SELECTED COMPONENTS

Components

Prototypes

Forensic Report

Agency

Senior Forensic Team

Case identifier

MDEF-MAA-UTS-001

Members

Alejandra Rivera Zamacona, Armin Gulbert, Ludovico Celli, Melissa Ingaruca Moreno,  Rishi Srinivasan, Swarna Manjari Chellapandi

Date of Receipt

19 November 2025

Date of Report

21 November 2025

Website URL

https://hackmd.io/@nmoHUr94RLOmMhWqUedElQ/B1AbeLjlbg

Purpose of the Report

The purpose of this document is to provide a comprehensive overview of the forensic / due diligence activities carried out on a malfunctioning electronic device.The report serves as a key deliverable of the team work members did for the “Unpacking Tech Systems” course within the MDEF program at IAAC.

Structure of the Report

The report was built based on the following structure:

• Scope of the report:
  • Describing the analyzed machine
  • Description of the forensic activities performed
• Background and Context:
  • Purpose of the system
  • High-level functionality
  • Circumstances in which we found the machine
• How is it built?
  • Overview on general build
  • Functionality system map
  • Listing components
• Health check of the system:
  • Procedures and results
  • Categorization of components
  • Defined critical questions and observations

Scope of the report

Anycubic Photon M3 Plus

Product Name

3D Printer

Model

Anycubic Photon M3 Plus

Weight

12 kg

Machine Size

360*290*475 mm

Printer Serial Number

ML2207B0400814

Firmware

Anycubic Photon M3 Plus upgrade V2.1.0.3 firmware EN

Forensic activities

This section gives a brief overview of the forensic goals and linked activities.

Background & Context

Purpose of the System

The selected machine is an Anycubic 3D printer using resin-based technology for creating 3D objects. The machine serves its users to turn the 3D design into tangible objects.

Functionality

This section gives a brief overview of the key functionalities of the printer to have a general understanding on the user experience, procedures and dependencies with other machines, systems.

The chart below contains a high-level system map covering a context-base visualization of the main process steps and information/material flows:

Based on the chart the following key functionalities have been identified:

Receiving information and files

Processing and de-bundling information and file packages

Communication with other machines / systems using wired and wireless connections

Raw material management

3D object creation using UV technology

Safety and maintenance procedures

Manage cooling

High-level anatomy

Critical questions, observations and assumptions

1. Cost of printers vs Cost of components
2. Is it better to buy a new one or replace/repair components?
3. Was the LCD panel issue the only reason for the decommissioning of the machine?
4. The malfunctioning of the LCD panel limits initial functionality testing of the machine
5. How can non-functioning elements be reused?

What are the reusable components?

Sources

https://wiki.anycubic.com/en/resin-3d-printer/photon-m3-plusCritical Questions & Assumptions

Component Forensic Report

Purpose of the Report

The purpose of this document is to provide a comprehensive overview of the forensic/due diligence activities carried out on a key component of the Anycubic Photon M3 Plus 3D printer.

Structure of the Report

The report was built based on the following structure:

• Build and Technical overview
• Functionality overview
• Code example resulting functioning component
• Schematic diagrams illustrating component functionality and test scenario
• Utilisation ideas, listing of potential utilisation scenarios

Build and Technical Overview

The component contains mechanical and electronic elements. The Z lead screw, platform bucket and the dual rail are the mechanical elements operated by the electro motor. The motor receives power and instructions via signal from the motherboard. The motor rotates the Z leads screw through steps triggered by signals. Later in this document we describe in detail the code snippet we used to activate the motor and movement.

Functionality Overview and Testing

Within the core functionality of the 3D printer, this component has a key role. Based on the received signals from the mother board – channeling in the printing process, parameters and instruction – the motor starts spinning the Z lead screw. That is responsible for the up-down direction movement of the build plate. This movement ensures that the printing follows a consistent pace and rhythm. In this process the code-based instructions of the Firmware is turned into movement.

Code examples of functionality

Code: Stepper Motor Rotation

// Define stepper motor connections and steps per revolution:

#define dirPin 8

#define stepPin 9

#define stepsPerRevolution 200

void setup() {

  // Declare pins as output:

  pinMode(stepPin, OUTPUT);

  pinMode(dirPin, OUTPUT);

}

void loop() {

  // Set the spinning direction clockwise:

  digitalWrite(dirPin, HIGH);

  for (int i = 0; i < stepsPerRevolution; i++) {

    // These four lines result in 1 step:

    digitalWrite(stepPin, HIGH);

    delayMicroseconds(2000);

    digitalWrite(stepPin, LOW);

    delayMicroseconds(2000);

  }

  delay(1000);

  // Set the spinning direction counterclockwise:

  digitalWrite(dirPin, LOW); 

  for (int i = 0; i < stepsPerRevolution; i++) {

    // These four lines result in 1 step:

    digitalWrite(stepPin, HIGH);

    delayMicroseconds(1000);

    digitalWrite(stepPin, LOW);

    delayMicroseconds(1000);

   }

  }

Code: Stepper Motor Movement Based on user input distance

// ———– Pin Setup ———–

const int stepPin = 9;

const int dirPin  = 8;

// ———– Motion Parameters ———–

// Motor: 1.8° stepper → 200 steps/rev

float stepsPerRev = 200;

// Your leadscrew pitch:

float leadScrewPitch = 4;  

// Microstepping: 1 = full step, 2 = half, 4 = 1/4, 8 = 1/8, 16 = 1/16, etc.

int microsteps = 1; // adjust based on your DRV8825 M0/M1/M2 pins

void setup() {

 pinMode(stepPin, OUTPUT);

 pinMode(dirPin, OUTPUT);

 Serial.begin(19200);

 Serial.println(“Enter Z distance in mm (positive = up, negative = down):”);

}

void loop() {

 if (Serial.available()) {

   float distanceMM = Serial.parseFloat();

   // Steps per mm calculation (for 2mm pitch)

   float stepsPerMM = (stepsPerRev * microsteps) / leadScrewPitch;

   long totalSteps = abs(distanceMM * stepsPerMM);

   // Direction

   if (distanceMM > 0)

     digitalWrite(dirPin, HIGH);  // UP

   else

     digitalWrite(dirPin, LOW);   // DOWN

   Serial.print(“Moving “);

   Serial.print(distanceMM);

   Serial.println(” mm”);

   // Step loop

   for (long i = 0; i < totalSteps; i++) {

     digitalWrite(stepPin, HIGH);

     delayMicroseconds(600);

     digitalWrite(stepPin, LOW);

     delayMicroseconds(600);

   }

   Serial.println(“Done. Enter next distance:”);

 }

}