Youssef Hesham Nasr

R&D Mechanical Design Engineer

Youssef Hesham
Nasr

R&D-driven mechanical design engineer specialized in biomechanics for gym equipment — engineering complex mechanisms, then preparing the manufacturing files and patent drawings that turn ambitious ideas into certified, production-ready machines.

DFM DFA FEA CSWP Certified Biomechanics Mechanism Design Patent Drafting R&D

Showreel · 4 services

Watch the work,
service by service.

One short film for each service I offer, with the deliverables you actually receive.

0:00 / 0:50

Gym equipment, from 3D design to a built machine.

Commercial gym machines engineered in SOLIDWORKS and checked with FEA, then delivered as manufacturing files. Need the machine itself? I can build it and ship it to you.

  • 3D CAD
  • FEA
  • DFM / DFA
  • .DXF
  • .IGES
  • .PDF
Order on Fiverr →

Ultimate Leg Machine

Engineered on screen.
Built to move.

01 — About

Engineering discipline,
delivered digitally.

Highly technical, precise, and professional R&D Mechanical Design Engineer specializing in top-tier digital engineering solutions. I use advanced CAD and FEA tools to deliver production-ready designs for international clients and corporate partners — focused entirely on digital preparation, structural integrity validation, and Design for Manufacturing (DFM) principles.

Engineering Expertise

3D Modeling CAD FEA / Stress Analysis Reverse Engineering DFM DFA Stability Analysis Structural Validation Sheet Metal Nesting

Specializations

Gym & Fitness Equipment Home Gym Equipment Rehabilitation Equipment Baby Mobility & Strollers Machine Design

Software

SOLIDWORKS AutoCAD KeyShot
Download Full CV (PDF)

Experience

Oct 2026 — Present
Mechanical Design Engineer — Fitness Equipment

MAX MOVE · Fitness Equipment Manufacturer · Sadat City, Egypt

Engineering & Product Development — designing commercial strength equipment (plate-loaded and selectorized machines, cable systems, functional trainers) from concept to production-ready documentation: complete SolidWorks 3D models and assemblies, 2D manufacturing drawings, BOMs and cutting lists, validated with engineering calculations against technical, manufacturing and safety requirements. Remote (part-time → full-time) with scheduled factory visits for prototyping and manufacturing support.

Oct 2026 — Present
Gym Machine Manufacturing & Worldwide Shipping

Fiverr · Separate service

Beyond the design files, I now manufacture the gym machines I design for my Fiverr clients and ship them worldwide — offered as a separate service from the design work.

Jun 2025 — Present
Contracted R&D Mechanical Design Engineer

Rebuilt Company

Spearhead engineering & DFM of commercial fitness equipment — heavy-duty power racks and plate-loaded hip thrust machines. Validate structural integrity via FEA equivalent strain studies on welded frames and optimize sheet-metal nesting for laser-cut manufacturing.

Aug 2025 — Present
Mechanical Design Engineer — Gym Equipment Division

ISM LTD

Full R&D focus on gym equipment design and biomechanics — integrating complex mechanisms into unconventional machine concepts, preparing manufacturing files, and drafting patent documentation for Saudi Arabia, ISO and broader Middle East approval.

Aug 2024 — Present
Freelance Mechanical Design Engineer

Fiverr · Global

25+ specialized engineering projects for international clients — precise 3D models, FEA simulations and DFM optimizations across gym equipment, rehabilitation machines and home fitness equipment.

Apr 2025 — Aug 2025
CNC Nesting & Reverse Engineering

El-Nesr For Sheet Metal Cutting

Reverse engineered real-world sheet metal parts — measuring, drafting clean CAD geometry, and exporting production-ready DXF files. Owned the full nesting pipeline on plasma and laser CNC: layout optimization, G-code adjustment, and machine parameter tuning (cutting speed, kerf, pierce). Focused on cost reduction through aggressive nesting strategies that minimized scrap and maximized sheet yield.

Featured Shop Floor — El-Nesr For Sheet Metal Cutting

CNC plasma cutting sparks — El-Nesr shop floor Finished cut sheet-metal parts — El-Nesr shop floor
Expected Graduation: 2027
B.Sc. Mechatronics Engineering

Tanta University

Multidisciplinary program combining mechanical design, electronics and control systems — kinematics, material science and structural analysis applied directly to R&D product development.

0+ Projects Delivered
3 Active Engineering Roles
CSWP Certified Professional
6+ Industries Served

02 — Services

From loaded structure
to laser-ready file.

Two disciplines, one production pipeline — engineering the machine, then preparing every file the factory floor needs to build it.

01

3D Engineering & Machine Design

Full mechanical design of gym machines and structural equipment, validated for real-world loads before a single part is cut.

Gym Machine & Equipment Design

Full CAD engineering of commercial fitness machines — power racks, plate-loaded machines, cable systems — built for duty-cycle durability.

Biomechanics Structuring

Range-of-motion and joint-loading logic translated into mechanical linkages, resistance paths and frame geometry.

FEA & Stress Analysis

Equivalent-strain and static structural simulation on welded frames and brackets to validate strength before manufacturing.

Dynamic & Stability Analysis

Motion, tip-over and center-of-gravity studies to confirm equipment stays safe and stable under real loading conditions.

02

Manufacturing File Preparation

Clean, laser-ready and shop-ready files so what you approve on screen is exactly what comes off the machine.

03

3D Rendering & Visualization

Photorealistic KeyShot renders that sell the product before it's built — for pitch decks, marketing pages and manufacturing sign-off.

Request a Render →
Iso-lateral leg press — KeyShot render Functional trainer rack — KeyShot render Preacher curl machine — KeyShot render Ultimate leg machine — KeyShot render Leg extension / preacher station — KeyShot render EXE functional trainer tower — KeyShot render Feronik 10kg dumbbell — KeyShot render Feronik 20kg weight plate — KeyShot render 3-in-1 baby mobility trike — KeyShot render
04

Manufacturing & Worldwide Shipping

A separate, optional service: once your design is done, I can manufacture the machine and ship it to you — wherever you are.

Built From Your Design

The same machine I engineered for you on Fiverr, manufactured directly from its production files.

Cut, Welded & Finished

CNC laser-cut parts, welded frames and a powder-coated finish — the full build, not just the files.

Shipped Worldwide

Packed and shipped to clients around the world, straight from the workshop.

Design Only, or Design + Build

Order the design files on their own, or add manufacturing and shipping as a separate step.

03 — Projects

Selected work, in 3D.

Real CAD models from real projects — rotate through the machines, engineered from concept to manufacturing-ready.

3D model coming soon
01 / 08

 

 

 

04 — Built

From CAD model
to finished machine.

My latest machine off the shop floor. Drag across the image to compare the CAD render with the real, manufactured build.

Manufactured Pediatric Rehabilitation Leg Press on the workshop floor
CAD render of the Pediatric Rehabilitation Leg Press
CAD render Manufactured
Medical Devices · Rehabilitation

Pediatric Rehabilitation Leg Press

A one-off leg press made for a single child with muscular atrophy. The client sent me all of the child's body measurements, and I designed the machine specifically around him — then manufactured it from my own production files.

  • 1Custom-fit for one child
  • 3 kgDesigned working load
  • +4 kgOptional extra weight
  1. 01

    Designed around the child

    Sized from the child's own measurements, with a maximum working load of 3 kg — and up to 4 kg of extra weight can be added later.

  2. 02

    Laser-cut parts

    Sheet-metal plates cut on CNC laser from DXF files, and the pipes cut on a rotary tube laser from IGES files.

  3. 03

    Welded frame

    The cut pipes welded together to form the machine's main frame.

  4. 04

    Powder-coated & assembled

    Finished, assembled and standing on the shop floor — matching the render.

Rotate it in 3D
01 Laser cutting
Machine parts hanging in the powder-coating booth
02 Powder coating
03 From screen to shop floor

05 — Contact

Let's build something
production-ready.

Have a machine to design or files to prepare for manufacturing? Reach out through whichever channel works best for you.