Mechanical Design Engineer

Mohamad Rammal

Award-winning mechanical design engineer with experience across Biotech, Robotics, and Automotive — from CAD and FEA/CFD simulation to manufacturing and electro-mechanical integration.

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About

Mechanical design, end to end

Mechanical design engineer currently building point-of-care diagnostic technology at RapidX Bio. Graduated from UCL with a First in Mechanical Engineering. Work spans CAD, FEA/CFD simulation, manufacturing setup, and electro-mechanical integration.

Primary inventor on 2 biotech patents

Best undergrad FYP design project

Design of hydrogen fuel cell system

Robotics competitions since 2015

Selected work

Projects

Four projects spanning biotech consumables, sustainable transport, motorsport, and competitive robotics.

In the lab & on the field

Other Projects

Glimpses of the process behind the projects — CAD, prototyping, machining, and competition day.

Consumable and Accessories development with RapidX Bio

Cartridge prototype

FDM 3D printed prototype for client demos

Automated rig for loading and unloading test tubes into PCR device

Internal tool to speed up sample testing

Universal e-bike conversion kit

E-bike hub motor, CAD

7 degrees of adjustability for a universal fit

Ultra-efficient H2 vehicle R&D

Powertrain PCB

Custom mainboard for the H2 fuel cell powertrain

Powerboard PCB schematic

Hand-sketched layout turned into an EasyEDA schematic

Automotive wiring harness

In-house harness for the H2 endurance vehicle

Full safety harness

Modular loom with emergency shutdown switches and hydrogen sensor

Throttle schematic sketch

Hand-drawn circuit for the 3-position throttle and dead-man switch

Throttle casing, CAD

Outer casing designed to match the driver's grip

UCL Formula Student

Lap time sensitivity

OptimumLap analysis of downforce vs. vehicle mass

IPG Carmaker simulation

Modelling the car's performance on a virtual track

Gear engagement map

Visualising gear changes around the circuit layout

Throttle map, generic setup

Race engineering for the IMechE Sim Racing Series

Throttle map, updated setup

Comparing driver throttle input after a setup change

Brake Over-Travel Switch mount

Designed and manufactured the BOTS mount for the race car

Physio-therapeutic exercise assisting device

Final electronics package

Sensors and microcontroller packaged to fit around a wrist

Casing, CAD model

Designed to package all components around a wrist

User interface

Tracks hand position against a physiotherapist-set path

IMechE Design Challenge — Year 1

Repeatable vehicle assembly

All-mechanical vehicle that returns to its start point

Wheel topology optimisation

Removing excess mass while respecting the force distribution

Generative-design support

Rigid support redesigned with a safety factor of 1.3

IMechE Design Challenge — Year 2

Spring-gantry assembly

Linear springs store elastic energy to launch a squash ball

Full launcher assembly

Arduino-controlled launcher aimed using calculated launch angles

Design for Manufacture — Turbine impeller

Impeller prototype

SLS-printed prototype reaching 44.6% peak efficiency

Housing technical drawing

Casing dimensions for the lower-scale test rig

Impeller technical drawing

Full dimensioned drawing at 2600 rpm design speed

Design for Manufacture — Wall bracket

Bracket prototype

Generative design used to remove as much mass as possible

CAM toolpath preview

Programmed for efficient manufacture on a 3-axis router

Mission-specific robots (FIRST Tech Challenge)

Ball collection robot

Robot collecting target balls at FTC World Championships 2017

Swerve drive mechanism

Robot showcasing swerve drive mechanism (similar to shopping trolleys)

Let's build something.

Mechanical Design Engineer based in London, UK — open to conversations about biotech, robotics, and automotive engineering.

Connect on LinkedIn London, UK