Why People Can Always Tell When AI Wrote Your Text
Young adults are letting ChatGPT draft their texts and hard conversations. Here's why it's obvious and what actually works instead.
Mechanical Design is a discipline of engineering that focuses on applying a combination of physical principles, mathematics, and materials science on the design, assembly, and maintenance of mechanical systems. The area often encompasses the development and analysis of both individual components and complete systems ranging from an entire car engine to smaller parts such as gears, levers, bearings, springs, hinges and other small mechanical parts. Mechanical Engineers use the knowledge and skills acquired to research, design, develop and test machines, engines and other types of tools for different industries. In essence, Mechanical Engineers create solutions that keep people and processes safe.
When working on projects for clients, hiring a Mechanical Engineer is beneficial for many reasons. A Mechanical Engineer offers expertise across multiple areas - engineering design skills to identify potential issues with existing systems or to develop new ones; problem-solving skills when it comes to resolving problems; knowledge in material sciences used in designing products; and the ability to develop detailed plans when implementing or maintaining systems. The expertise that Mechanical Engineers have makes them valuable assets to any business when it comes to creating effective solutions.
Here’s some projects that our expert Mechanical Engineers have made real:
From designing automated machines to creating effective fuel transportations systems - our skilled Mechanical Engineers are capable of providing innovative solutions and designs which cater specifically to each individual client’s requirements. If you have a project in mind which involves complex design mechanism, then let our team of experienced Mechanical Engineers provide simple yet innovative solutions. Post your project on Freelancer.com today and find experienced professionals who can get the job done for you!
From 24,044 reviews, clients rate our Mechanical Engineers 4.9 out of 5 stars.Mechanical Design is a discipline of engineering that focuses on applying a combination of physical principles, mathematics, and materials science on the design, assembly, and maintenance of mechanical systems. The area often encompasses the development and analysis of both individual components and complete systems ranging from an entire car engine to smaller parts such as gears, levers, bearings, springs, hinges and other small mechanical parts. Mechanical Engineers use the knowledge and skills acquired to research, design, develop and test machines, engines and other types of tools for different industries. In essence, Mechanical Engineers create solutions that keep people and processes safe.
When working on projects for clients, hiring a Mechanical Engineer is beneficial for many reasons. A Mechanical Engineer offers expertise across multiple areas - engineering design skills to identify potential issues with existing systems or to develop new ones; problem-solving skills when it comes to resolving problems; knowledge in material sciences used in designing products; and the ability to develop detailed plans when implementing or maintaining systems. The expertise that Mechanical Engineers have makes them valuable assets to any business when it comes to creating effective solutions.
Here’s some projects that our expert Mechanical Engineers have made real:
From designing automated machines to creating effective fuel transportations systems - our skilled Mechanical Engineers are capable of providing innovative solutions and designs which cater specifically to each individual client’s requirements. If you have a project in mind which involves complex design mechanism, then let our team of experienced Mechanical Engineers provide simple yet innovative solutions. Post your project on Freelancer.com today and find experienced professionals who can get the job done for you!
From 24,044 reviews, clients rate our Mechanical Engineers 4.9 out of 5 stars.TI-84 PLUS + ESP32-S3 + OV5640 AI CALCULATOR BUILDER SPECIFICATION 1. PROJECT OVERVIEW Build a modified TI-84 Plus non-CE calculator with an internally installed Seeed Studio XIAO ESP32-S3 Sense, OV5640 5MP autofocus camera, Wi-Fi, OpenAI API connectivity, TI-84 to ESP32 communication, and a calculator-side AI interface. System architecture: OV5640 camera -> ESP32-S3 -> Wi-Fi -> OpenAI API -> ESP32-S3 -> TI-84 -> Display The ESP32-S3 handles camera control, image processing, networking, and AI communication. The TI-84 provides the keyboard, display, user interface, and commands. Use the existing TI84-AI GitHub project by ivan-grebe as the primary software and architecture reference: Do not simply adapt an ESP32-C3 tutorial. This build specifically uses an ESP32-...
I need a complete design for a compact conveyor—4,1 meter long x 500 mm —dedicated to material-handling work. The key requirement is that the system use an Intralox modular belt driven by an integrated drum motor. The position of the drum motor is still to be defined. ( Under the conveyor belt, or at the noze of the belt. Here’s what I expect: • 3-D model and detailed fabrication drawings (STEP/DWG) •• Bill of materials and maintenance notes I will give you the belt type that is to be approved, and the conveyor belt series, from the Intralox range, and the intralox drwings. I will also give you the motor drawings. I will review the design on fit, manufacturability, and conformance with Intralox guidelines before sign-off.
We are looking for an experienced mechanical/product CAD designer to develop a clean, professional and manufacturing-ready CAD design for battery casing/enclosure. We have the basic dimensions, internal component layout and design direction. The requirement is to convert this into a practical casing design that can be manufactured locally using CRCA sheet metal, laser cutting, bending and welding, followed by powder coating. The designer should have prior experience designing sheet-metal for premium electrical/electronic enclosures, battery enclosures, UPS/inverter cabinets or similar products. Scope of Work - Develop the complete 3D CAD model and assembly - Design individual sheet-metal components - Account for appropriate sheet thickness, bend radius, bend allowance and fabrication cl...
I’m developing a drone for an engineering project and need a skilled CAD specialist to turn my reference images and hand-drawn sketches into a fully detailed mechanical design. Your task is to model every component, assemble the parts so tolerances and clearances make sense, and create a short motion animation that shows the drone’s range of movement and an exploded view for presentation. You’ll receive the sketches and photos as soon as we start; they outline the overall frame, motor mounts, landing gear, and gimbal concept. From there, I’d like you to: • Build precise 3D geometry of each mechanical part • Produce a clean, constraint-driven assembly that fits together without interference • Generate an MP4 (or similar) animation that rotates th...
we are facing some problems with our autonomous mobile robot like slip. The task is to design suspension for our existing design I need: how suspension should be designed to overcome the problems
Dear Sir or Madam, I am looking for an experienced mechanical design engineer or engineering company to develop a complete mechanical design of a new industrial product, a modular folding positioning arm. The product concept, preliminary architecture, material selection, engineering assumptions and product visualization have already been prepared. I am looking for an engineering partner who can take the project from the current concept stage to complete manufacturing documentation for the first physical prototype. Main design assumptions: two tubular arms connected by a mechanical articulated joint, interchangeable arm lengths: 250 / 400 / 500 / 600 / 750 / 1000 mm, maximum configuration approximately 2000 mm, arms: EN AW-6082 T6 aluminium tube, Ø60×5 mm, main joint compon...
I need a complete hydraulic solution for an industrial-grade material-handling machine. The scope starts at system-level sizing and runs all the way through to a finished schematic and fully specified bill of materials. What I already know • Application: mobile material handling system with ramp and load of 6 ton. • Core hardware that must be incorporated: hydraulic pumps, cylinders and motors. What I need from you 1. Analyse the load and working principle details I will provide, then size the pumps, cylinders and motors accordingly. 2. Select commercially available components that meet those calculations, noting part numbers, seal options and any special mounting or porting choices. 3. Produce a clear hydraulic schematic—ISO symbols preferred—showing ...
I need a complete CAD package for a standing-seam roll-forming machine. The 3D assembly must show every shaft, roller, gearbox, frame member and other moving component so that motion, clearances and maintenance access can be verified. Once the model is approved, translate it into 2D production drawings with fully dimensioned views ready for fabrication, all drafted to ISO standards for mechanical design and safety. I do not yet have fixed overall dimensions, so you will guide me on a practical industrial footprint that balances throughput with floor space. Material choices, standard part call-outs and bearing specifications should be included where relevant. Native SolidWorks files are welcome, and I will also need STEP and DWG exports. Deliverables: • Detailed 3D assembly of the co...
I need a complete CAD package for a standing-seam roll-forming machine. The 3D assembly must show every shaft, roller, gearbox, frame member and other moving component so that motion, clearances and maintenance access can be verified. Once the model is approved, translate it into 2D production drawings with fully dimensioned views ready for fabrication, all drafted to ISO standards for mechanical design and safety. I do not yet have fixed overall dimensions, so you will guide me on a practical industrial footprint that balances throughput with floor space. Material choices, standard part call-outs and bearing specifications should be included where relevant. Native SolidWorks files are welcome, and I will also need STEP and DWG exports. Deliverables: • Detailed 3D assembly of the co...
I'm seeking an experienced architect to redesign my house that I am planning to build. The aim is to enhance the practicality and usability of our living spaces, particularly the living room, bedrooms, and kitchen, with all designs focused towards the view of the lake and sunsets. Key Requirements: - Redesign should prioritize functionality and everything catered towards the view of the lake. - Focus on living room, bedrooms, and kitchen. Incorporate hvac detail with individual heating and cooling controls in each room. - Incorporate mechanical and electrical details for whole house. Will need to provide cad files for the whole build. Ideal Skills and Experience: - Proven architectural design experience - Strong understanding of living space functionality - Ability to integrat...
I need an aluminum adapter to connect a 1 3/4" thread to a 3/4" broom thread. The adapter should have a matte finish. Requirements: - Material: Aluminum - Finish: Matte - Size: 1 3/4" to 3/4" thread The one in the picture is what I need but the one end needs to fit over 1 3/4 pipe Ideal Skills and Experience: - Metalworking expertise, specifically with aluminum - Experience in creating custom threaded adapters - Ability to achieve a quality matte finish
I’m developing a new food-processing machine and need an experienced mechanical product designer who can take it from concept sketches to a complete, production-ready CAD package. The core of the assignment is full mechanical design: modelling all components and assemblies, laying out the drive system, and making sure the entire line meets food-industry hygiene and safety requirements. You’ll translate my functional notes into detailed 3D geometry, refine the mechanism for manufacturability, and generate the fabrication drawings we can hand straight to the shop. I work in SolidWorks myself, so native files in that format would be ideal, but I’m open to Inventor or STEP if that suits your workflow better. Good practice in tolerancing, material selection and sealed-shaft d...
I’m putting together a simple proof-of-concept: an XY plotter that uses stepper motors and a motor-driven cream / syringe head to write one predefined word on plain paper in four different sizes. The word and the sizes will be hard-coded for now; no live UI or font selection is needed. I just want to see smooth, accurate motion, clean cream extrusion, and clearly legible lettering in an “Elegant” style. Here’s what I need from you: • Mechanical design and parts list for the XY frame, rails, carriage, and syringe mount, all sized for an A4 sheet of paper. • Electronics schematic and firmware (Arduino + GRBL, or any open-source control stack you prefer) that drives two XY stepper motors plus a third actuator for the syringe. • G-code or equivalen...
Product Design / Mechanical Engineer Needed – Portable Pet Product We are a UK start-up developing an innovative portable outdoor product for dog owners and are looking for an experienced Product Design / Mechanical Engineer to help refine our existing concept and prepare it for prototyping and manufacture. The product concept, branding and initial CAD/design work have already been developed. We have also carried out initial market research with UK dog owners, which has identified several areas we would now like to improve from an engineering and usability perspective. The Project: The product is a compact, portable shade and comfort station for dogs, designed for use at beaches, parks, camping trips, outdoor events, holidays, gardens and other outdoor environments. The current ...
I already have a clear concept and now need it turned into a production-ready mechanical design in SolidWorks. The job is firmly in the detailed-design phase: every part must be modeled, toleranced, and fitted into a complete assembly that a manufacturer can quote from without guesswork. I will share sketches, functional requirements, and any reference models I have. From there, I expect you to build the full SolidWorks project, keep the feature tree clean, and follow best-practice naming so future edits are easy. To make expectations crystal-clear, here is what I need back: • Native SolidWorks 3D part and assembly files • Fully dimensioned 2D drawings for each component and the overall assembly • Exploded views and a BOM with material specs and quantities • A ...
We are looking for an experienced Mechanical/Industrial Engineer specialized in SolidWorks or similar CAD software to design a reusable steel mold for the mass production of precast concrete housing modules. The concrete module is approximately 3.0 m wide × 7.0 m long × 3.0 m high, open at the top, with an additional 1.2 m balcony on the front side. Main concrete specifications: * Wall thickness: 80 mm * Floor thickness: 200 mm * 4 concrete walls + floor cast as one monolithic piece * No roof during this casting process We need the complete manufacturing design of the steel mold, including: * External steel formwork * Internal negative/core mold * Steel plate thickness calculation * Structural frames and reinforcement ribs * Corners, connections and locking systems * Openi...
I need a mechanical engineer who can guide me in choosing a fixed-ratio gearbox for an industrial machine now in the design phase. The gearbox will not be manual, automatic, or CVT; I specifically want a robust fixed gearbox that can meet three critical criteria: high load capacity, a defined speed range that matches our motor curve, and long-term durability in a 24/7 production environment. Your task is to analyse the duty cycle, calculate the required service factor, and translate those figures into an exact gearbox size and model recommendation. Please include: • All design calculations and assumptions • A shortlist of commercially available gearboxes that satisfy the numbers, with supplier links and lead times • A brief comparison explaining why the recommended uni...
I'm looking for a CAD designer to create a machine tool specifically for pinching water hoses (layflat of 16” diameter). The design should prioritize ease of use. Key Requirements: - Design a machine tool for pinching 16” diameter water hoses. - Focus on ease of use in the design. Ideal Skills and Experience: - Proficiency in CAD software. - Experience in designing machine tools. - Strong focus on user-friendly design principles. Please provide examples of similar work.
I’m designing a slow-turning drum and need an experienced engineer to specify both the AC motor and the reduction gearbox that will drive it. The drum must rotate steadily at 6 RPM and the load calls for less than 100 Nm of torque on the output shaft. Space is limited, so overall package size and mounting arrangement have to be considered alongside efficiency and durability. What I need from you is a clear, calculation-backed recommendation: the appropriate gear ratio, motor power, frame size, and any duty-cycle or thermal considerations that might affect service life. Please base the sizing on readily available industrial components—ideally IEC-frame or NEMA equivalents—so I can source them quickly. Deliverables • A brief sizing report showing assumptions, torqu...
I need a complete mechanical design package for four identical 800 mm-wide belt conveyors that will carry bulk materials in an outdoor setting. I will supply the full layout and dimensional data; your task is to turn those numbers into ready-for-fabrication documents. Because these units will be exposed to the elements and loaded with bulk product, reliability and maintainability are critical. All three idler styles—troughing, return and impact—must be incorporated, along with properly sized pulleys, a robust take-up arrangement, and a drive system that aligns the motor, gearbox and coupling without shimming on site. The steel structure, galleries or trestles should be checked for deflection and vibration against standard limits. Deliverables I expect: • Detailed 3D mode...
A functional medical equipment product is already on my bench; what it lacks is a visually inviting shape and form that makes people want to pick it up and use it. I need a mechanical design engineer who can re-imagine the external geometry while respecting the internal components and overall ease-of-use goals. The brief is centred on aesthetic enhancement—specifically refined contours, balanced proportions, and a smooth user interaction—without compromising mechanical integrity. The workflow I picture is straightforward: translate my sketches and rough CAD into elegant 3D models, review iterations together, then prepare manufacturable files. Experience with SolidWorks or Fusion 360 is essential, and an eye for ergonomic detail will set the direction. Deliverables • Op...
Je souhaite mettre au point une machine de massage du dos destinée aux adultes. L’appareil devra : • fonctionner entièrement à l’électricité, • présenter un design d’inspiration classique (formes sobres, finitions élégantes), • intégrer une télécommande fiable pour régler l’intensité et démarrer/arrêter la séance à distance. Je cherche un(e) spécialiste capable de transformer cette idée en un concept exploitable : plans mécaniques, choix des matériaux, architecture électronique, schémas de câblage et recommandations pour le moteur, les actionneurs et la partie commande. Une mod&eacu...
Young adults are letting ChatGPT draft their texts and hard conversations. Here's why it's obvious and what actually works instead.
OpenAI's model broke its own security test and attacked Hugging Face. Here's why AI still can't test AI safely.
Huge opportunity for ongoing work from a massive new Freelancer project