Drivetrain geabox design jobs

I am converting a small city car to full electric power and need the complete motor-to-wheel package laid out in SolidWorks. The core focus is the motor and drivetrain, so every model, mount and shaft you create should revolve around a single high-torque brushless DC motor. Scope • Position the motor, gearbox (if required) and final drive within a very tight engine bay while preserving existing suspension pick-up points. • Design custom motor mounts, couplings and adaptor plates that can be fabricated from aluminium or mild steel plate. • Specify reduction ratios and gear arrangement that deliver strong launch torque yet allow 110 km/h cruise without over-revving the motor. • Route half-shafts and CV joints, checking angles and plunge travel again...

I’m developing an industrial-grade packaging machine and need a precisely engineered globoidal cam that converts continuous input rotation into accurate intermittent motion at the indexing table. Your task is to design the complete cam profile so it can drop straight into our existing drivetrain without re-machining surrounding parts. Key details • Application: high-speed packaging line (industrial environment) • Required motion: intermittent indexing with consistent dwell periods and gentle acceleration to protect product integrity • Space envelope and shaft diameter will be supplied as soon as the project starts, along with the target cycle rate and load data. Deliverables 1. Parametric 3D CAD model of the globoidal cam (STEP + native format) ...

...authentic inside BeamNG. If additional samples or layering tricks are required, I’m open to suggestions to get the most convincing result. Core tasks will include JBeam structuring, drivetrain and suspension tuning, LUA scripting for custom features, and tight integration of the engine audio. Everything has to load without errors in the latest public BeamNG build and behave predictably with FFB and damage simulation. Key deliverables • Medium-detail RS3 exterior + interior model, UV-mapped and textured • Optimised JBeam with realistic weight distribution and crash behaviour • LUA scripts for drivetrain logic and any extra functions we decide on • Implemented DAZA engine sound set across the full RPM range, inside and out • One tes...

I need a precise CAD model for a small plastic gear that I’ll fabricate on my desktop FDM printer. This is a standalone cog, so it does not have to match any existing drivetrain or housing; performance, smooth rotation, and printability are the key concerns. You will receive a hand sketch with the desired outer diameter, approximate thickness, and tooth count. From that, please: • Translate the sketch into a fully-parametric model in SolidWorks, Fusion 360, or a comparable package. • Optimise tooth profile and root fillets so the gear prints cleanly on standard 0.4 mm nozzles without post-processing. • Check overhangs, clearances, and tolerances typical for PLA/ABS printing. • Export and deliver: – Editable source file (e.g., .SLDPRT, .F3D...

I'm looking for a skilled 3D artist to model, animate, and rig parts of a plane. The project includes: - Modeling: Landing gear and other drivetrain assemblies - Animation and Rigging: Both landing gear and drivetrain assemblies Ideal skills and experience: - Expertise in 3D modeling software (e.g., Blender, Maya) - Experience with rigging and animation - Ability to deliver high-quality models and animations quickly Need this done ASAP, so prompt communication and a fast turnaround are essential. Looking forward to your bids!

I have taken an electric-vehicle concept through its preliminary design stages and now want to validate the motor and drivetrain. My main focus is comprehensive performance testing—electrical, mechanical, and software/control—to verify that the hardware and embedded logic meet the predicted specs before we proceed to pilot production. Scope You will plan and execute a coordinated test campaign on the assembled power-unit (inverter, motor, reduction gear, and associated control firmware). Real-time data acquisition, repeatable procedures, and clear reporting are crucial. Key test areas • Electrical performance testing • Mechanical performance testing • Software / control-system testing Typical tools you might draw on include dynamometers...

...trail-riding rig. I need guidance on exactly which components, brands, and setup choices will give me the right balance of articulation, ride quality, and durability without pushing the truck toward a rock-crawler or mud-bogging build. You’ll be working from a clean slate: the Bronco is stock apart from basic protective plates. I’d like you to evaluate suspension, wheels and tires, gearing, drivetrain protection, recovery equipment, and any supporting upgrades (brake lines, steering stabilizer, driveshaft angles, ECU re-tuning, etc.) that become necessary once lift and unsprung weight change. Where multiple approaches make sense, please explain the trade-offs so I can decide whether to prioritize comfort, cost, or maximum clearance. Deliverables • A written s...

...MANDATORY EDUCATION REQUIREMENTS Required: Master Degree (MSc) or equivalent advanced qualification in: Automotive Engineering Mechanical Engineering Aerospace Engineering Vehicle Dynamics Mechatronics Advanced Mobility Systems PhD level applicants are welcome. MANDATORY TECHNICAL SKILLS The applicant must independently understand: chassis engineering suspension geometry steering systems drivetrain packaging aerodynamic airflow structures cooling systems EV/hybrid platform packaging structural reinforcement manufacturable assemblies composite structures prototype development precision engineering tolerances MANDATORY SOFTWARE SKILLS Expert-level required in: SolidWorks Advanced CAD assemblies Parametric modeling Technical drafting Surface modeling Strong preference for: C...

I'm seeking an expert in motorsport chassis design with a focus on spaceframe structures. The chassis is for a high-performance motorsport vehicle where functionality is crucial. Key Requirements: - Design a spaceframe chassis - Prioritize lightweight materials and high durability - Packaging of drivetrain, suspension geometry based on BMW E46, and motor placement - Suspension placement and functionality - Fitting a Fiberglass Ford Coupe 1932 body with custom fenders to achieve the silhouette of the '32 Ford on a modern, serious performance undercarriage Ideal Skills and Experience: - Extensive experience in motorsport chassis design (proof of previous experience required) - Expertise in spaceframe structures - Proficient in selecting and working wit...

...sourcing. The first milestone will be a small test dataset of around 50 vehicles delivered in Excel or CSV format. If the quality is good, I would like to expand this into a much larger dataset. **Required fields for each vehicle:** - Make - Model - Badge / variant - Series / generation - Year range - Body type - Engine size - Engine code, if available - Fuel type - Transmission - Drivetrain - Australian market / country - Source or reference used **Important requirements:** 1. The data must be specific to the Australian market and include badge/variant-level detail. 2. The freelancer should have experience with automotive data, vehicle specifications, VIN/vehicle databases, parts catalogues, dealership data, repair estimating, or similar work. 3. I do no...

Hiring: EV Vehicle Design Engineer / Automotive Product Designer India (Remote / On-site) Electric Vehicles (Light Commercial Vehicles) Full-Time / Contract / Consultant About the Opportunity We are developing a new electric light commercial vehicle (LCV) similar to the Tata Ace EV and Ashok Leyland Bada Dost. We are looking for an experienced automotive designer/engineer who can design and develop the complete vehicle from concept to production. Responsibilities * Complete vehicle design and engineering * Chassis and frame design * Cabin and cargo body design * Battery pack and drivetrain integration * Suspension, steering, and braking systems * 3D CAD modeling and engineering drawings * Prototype development and testing * Support for hom...

I have already built the core frame, drivetrain and basic ROS nodes for a humanoid robot; now I need a robotics specialist to take it across the finish line so it can reliably handle industrial-grade assembly work on a factory line. What’s left to do spans both hardware and software. On the mechanical side, wrist and gripper modules must be refined for repeatable pick-and-place, the torso needs final cable routing, and the protective covers should be redesigned for faster maintenance access. Electrically, I still require clean integration of the force-torque sensors, proximity safety scanners and the 48 V power distribution board. The bigger challenge is the control stack: • Extend the existing ROS 2 framework with MoveIt motion planning for dual-arm manipulation. &...

I’m refining an automated café concept and now need a specialist to engineer the motor-and-gear train that drives the internal robotic mechanisms. Exterior styling and user interface are already covered, so this brief is limited to the interior drivetrain. The job You will size, select and integrate the motors, gearboxes and supporting components that move the dispensing arms, actuators and conveyors. Your work should balance performance with manufacturability and be ready for hand-off to my fabricator. Key performance goals • Precision and accuracy • Speed and efficiency • Durability and ease of maintenance Expected deliverables • 3D CAD assembly of the complete drive train (STEP or SolidWorks) • Motor and gear calculations (torque, ...

...primary purpose as “Carbon,” which I interpret as an intention to use carbon-based materials or composites later on. Keep that in mind for section sizing and join geometry, but there’s no need to lay up ply schedules at this stage. SolidWorks 2020 or later is preferred so I can open the files directly. Please organise the feature tree logically, add simple reference planes for suspension and drivetrain pick-ups, and label major dimensions. When you’re done, send: • The native .SLDASM and .SLDPRT files for both the tubular and monocoque variants • A neutral STEP export of each assembly • One or two quick screen renders that illustrate the overall form and mounting points I’ll review the assemblies for basic packaging, clear load ...

...primary purpose as “Carbon,” which I interpret as an intention to use carbon-based materials or composites later on. Keep that in mind for section sizing and join geometry, but there’s no need to lay up ply schedules at this stage. SolidWorks 2020 or later is preferred so I can open the files directly. Please organise the feature tree logically, add simple reference planes for suspension and drivetrain pick-ups, and label major dimensions. When you’re done, send: • The native .SLDASM and .SLDPRT files for both the tubular and monocoque variants • A neutral STEP export of each assembly • One or two quick screen renders that illustrate the overall form and mounting points I’ll review the assemblies for basic packaging, clear load ...

My company Quimper Bike Components, based in Victoria, BC, is seeking a talented Mechanical Engineer or Gear Specialist to finalize the design of a high-density, compound planetary human-powered bicycle gearbox. This system is specifically engineered for high-torque, human-powered mountain biking, focusing on efficiency for steep mountain climbs. Responsibilities: Design and organize a complete STEP file including the gearbox, shifter, cranks, front chainring and rear chainring, Ensuring smooth power flow across all 16 speeds, optimizing for high-density packaging within standard bicycle frame constraints. You must also create a 5-minute explainer video detailing the internal logic, power flow paths for specific gears, and mechanical advantages so the Quimper Bike Components...

...specifically for large open fields and need a complete concept model to move the idea from rough notes into a clearly defined, build-ready vision. The robot’s core jobs are straightforward: mow grass efficiently while continuously detecting and avoiding obstacles it may meet in the field. You will translate these goals into a coherent concept that blends mechanical layout, sensor placement, drivetrain choices and an exterior form that makes maintenance easy and operation reliable. I am not tied to any particular software, but models produced in SolidWorks, Fusion 360 or a comparable mainstream CAD package will let me iterate with my fabrication partners. Deliverables • High-level sketches or mood boards that show the overall look and proportions • A detail...

Title: 3D Modeling + Simple Mechanism Design for RC Vehicle (Automotive Experience Preferred) Description: We’re building a scaled RC proof-of-concept vehicle with functional interior/exterior features. This is NOT a production car — it’s a 3D-printed RC model with simplified mechanisms. We already prepared a PDF guide that shows the design direction, proportions, and features. It’s only a guide — we’re flexible and open to improvements or refinements you recommend. We need a designer who can model the body + chassis and create basic servo-driven linkages for doors, bonnet, and boot. Vehicle dimensions, the ideal engine mockup type, and the gearbox mockup will all be finalized together during the design process. What We Need: BOD...

...with current prices that keep the whole build near the $600 mark • Mechanical and electrical drawings (2D or simple 3D CAD) showing frame layout, battery placement, drivetrain, steering, brakes, and wiring • Step-by-step assembly guide, including any jigs or fixtures I’ll have to make • Charging circuit design suited to household power (110/220 V) • Performance estimates—range, top speed, and recharge time—based on the chosen components • Email or chat support to clarify questions while I gather parts and start assembly Acceptance criteria: the documented bill of materials must total approximately $600, the design must be road-safe at neighborhood speeds (around 25–30 mph), and the calculated range should l...

...significantly speed up the development process. What I need: * Creation of the **JBEAM structure** (vehicle physics) * Proper **DDS textures and materials** * A fully functional **BeamNG vehicle mod** Required features: * Opening **doors** * Opening **hood** * Opening **trunk** * Working **dashboard / speedometer** * Proper **vehicle deformation and crash physics** * Correct **wheel, suspension, and drivetrain setup** The goal is to have the vehicle **fully functional and stable inside **. Requirements for the freelancer: * Good knowledge of **JBEAM vehicle physics** * Previous experience creating ** vehicle mods** * Portfolio or examples of previous mods (preferred) Since the 3D model is already prepared, the main work will be integrating it into BeamNG with proper physi...

I’m putting together the complete design package for an autonomous lawn-mowing robot that can handle more than 1.5 acres of mixed terrain while chiefly trimming short grass. Your task is to turn the core idea into a build-ready set of documents: 3D CAD models, detailed mechanical drawings, motor and drivetrain selection, control architecture, and a clear wiring diagram. Because the property combines flat stretches with gentle hills, stability and traction strategies—such as an articulated or independently driven wheel setup—need to be baked into the concept. I also want straightforward, sensor-based navigation (GPS + RTK or comparable) and obstacle detection that can be sourced with readily available components. Key deliverables • Native CAD fil...

I am moving from concept to engineerin...with clear fastening and tolerance information. • Data organised so downstream teams—battery, drivetrain, suppliers—can reference or adapt it without re-work. I already have high-level targets for size and performance; you will translate these into surfaces, hard points, and manufacturable geometry. If you bring experience with automotive standards, lightweight materials, or EV-specific packaging, please highlight it in your proposal and include samples of previous vehicle or complex product designs. Deliverables will be reviewed against fit/finish accuracy, completeness of the BOM, and the ease with which a third-party fabricator can pick up the files. Looking forward to collaborating on a design that is ready for...

I'm seeking an expert in mechanical and electrical engineering to complete an electric bike project, specifically focusing on the motor and drivetrain. Key requirements: - Complete the motor integration with the existing bike setup. - Ensure optimal performance and efficiency of the motor and drivetrain. - Collaborate closely with me to meet project specifications and deadlines. Ideal Skills and Experience: - Proven expertise in electric bike engineering. - Strong background in motor systems and drivetrain mechanics. - Ability to work quickly and efficiently, as I need this project completed ASAP. Please provide a portfolio of similar work and a clear timeline for project completion.

...SYSTEM ARCHITECTURE –––––––––– Frontend Web app (React or ) Mobile-first design Search, filters, results grid, vehicle detail pages, lead form Backend API (FastAPI or Node.js) Authentication (admin + dealer dashboard) Lead processing + scoring service Dealer registry service Database PostgreSQL Tables: Dealers Listings Leads Lead status / follow-up Pricing snapshots Search Engine OpenSearch or Elasticsearch for fast filtering and sorting –––––––––– B. DATA INGESTION –––––––––– Sources Dealer inventory feeds (preferred) Aggregator APIs (if licensed) Manual CSV import fallback for MVP Refresh Cycle Every ...

...need a concise but technically rigorous study that determines whether an automatic or hydro-mechanical transmission can be successfully retrofitted into legacy T-72 and T-90 main battle tanks. The heart of the work is a power- and driveline-centred analysis: I want clear answers on whether available automatic gearboxes can meet the torque demands of these platforms and fit inside the current drivetrain envelope. To get there you will: • Reverse-engineer the existing gearbox space, linkages and cooling paths from the hull and produce an accurate CAD envelope. • Compare global MBT automatic transmissions, highlighting torque curves, gear ratios, power density and any built-in hydraulic retarder data. • Examine torque-converter options in depth, showing how ea...

My company Quimper Bike Components, based in Victoria, BC, is seeking a talented Mechanical Engineer or Gear Specialist to finalize the design of a high-density, compound planetary human-powered bicycle gearbox. This system is specifically engineered for high-torque, human-powered mountain biking, focusing on efficiency for steep mountain climbs. We have the foundation; we need your expertise to bring the 16-gear internal train to a production-ready conceptual state. Responsibilities: Design and organize a complete STEP file including the gearbox, shifter, cranks, front chainring and rear chainring, Ensuring smooth power flow across all 16 speeds, optimizing for high-density packaging within standard bicycle frame constraints. You must also create a 5-minute explainer video...

...of a manual gearbox (We will provide gear sets) and redesign the internal gear set into a dog engagement (dog box) configuration. The final output must include complete, production‑ready manufacturing drawings, tolerances, materials, and assembly notes suitable for CNC machining and heat‑treatment processes. This project requires someone with proven experience in motorsport transmissions, gear design, and precision manufacturing documentation. Scope of Work 1. Capture & Document Gearbox gear set Specifications Reverse‑engineer or accurately model the existing M66 gearbox internals. Measure or confirm: Gear ratios Tooth profiles Shaft diameters Bearing interfaces Synchroniser assemblies Clearances & tolerances Material specifications (if known) Produce a fully dimension...

You need to check and make a gearbox for me in the Siemens NX program. It contains three shafts, four gears, bearings, and a housing. The drivetrain should consist of three chains that drive a cable drum. The chain doesn't need to be checked precisely; it can simply be drawn as a belt. I also sent you a few pictures as examples.

...avoidance, and remote monitoring need to be built in from the start rather than bolted on later. Autonomy may leverage ROS, SLAM, GNSS-RTK or any framework you are comfortable with, provided you outline integration and sensor choices. Please structure your proposal so that the following items are handed over: • Concept layout and 3-view drawings showing hull geometry, wheel/track system, sealed drivetrain, and buoyancy calculations • Powertrain sizing model: battery pack, generator, motor specs, expected endurance, and duty-cycle simulation • Control and autonomy architecture diagrams, including sensor suite and redundancy approach • Bill of materials to a level that allows first-article sourcing or prototyping • Brief manufacturing roadmap that...

You need to check a gearbox for me in the Siemens NX program. It contains three shafts, four gears, bearings, and a housing. The drivetrain should consist of three chains that drive a cable drum. The chain doesn't need to be checked precisely; it can simply be drawn as a belt. I also sent you a few pictures as examples.

I want to turn a clean-sheet idea into a true sports car built around one goal: absolute maximum speed. Every design decision—body shape, chassis layout, power-train selection, cooling, material choice—must serve that single objective. What I already know • Vehicle type is fixed: Spor araba (sports car). • Performance metric to optimise: Hız (speed). • Priority within speed: Maksimum hız (top speed), not just quick 0-to-100 times. What I need from you 1. A complete digital concept: exterior and under-body aero surfaces, structural frame, and drivetrain placement delivered in CAD (SolidWorks, CATIA, or similar). 2. CFD and, if possible, wind-tunnel-validated simulations that demonstrate projected top-speed gains and stability at that velo...

I want to turn a clean-sheet idea into a true sports car built around one goal: absolute maximum speed. Every design decision—body shape, chassis layout, power-train selection, cooling, material choice—must serve that single objective. What I already know • Vehicle type is fixed: Spor araba (sports car). • Performance metric to optimise: Hız (speed). • Priority within speed: Maksimum hız (top speed), not just quick 0-to-100 times. What I need from you 1. A complete digital concept: exterior and under-body aero surfaces, structural frame, and drivetrain placement delivered in CAD (SolidWorks, CATIA, or similar). 2. CFD and, if possible, wind-tunnel-validated simulations that demonstrate projected top-speed gains and stability at that velo...

I need an experienced hardware engineer to design a robust, automotive-grade PCB built around an STM32H7 microcontroller. This board will function as a drivetrain/traction-control module and must meet high reliability, EMI, and durability standards for use inside a vehicle environment. The enclosure and connector/header layout are already defined and must be followed for mechanical fit. No schematics exist yet — this is a complete design from scratch. --- Required Features Core MCU STM32H7 series with 2× native CAN FD Support for 3rd CAN FD bus via external SPI CAN FD controller Analog switch to optionally bridge the two native CAN FD buses (programmable link/isolated mode) Connectivity ESP32 module for wireless support STM32 ↔ ESP32 communica...

I am kicking off the full exterior and systems design for a next-generation supercar and need your expertise inside Siemens NX and CATIA to bring the vision to life. The project balances three pillars—eye-catching aesthetics, all-out performance, and seamless hybrid-power integration—but the spotlight is firmly on creating a truly unique exterior silhouette that will stand out in any paddock or showroom. The workflow begins with concept sketches or quick surface studies and moves rapidly into detailed Class-A surfacing, aerodynamic refinement, and hybrid-system packaging. Expect close collaboration on air-flow management around the front splitter, side intakes, and rear diffuser while ensuring the battery and e-motor layout keep weight distribution razor-sharp. Deliver...

...hands-off. • Reliable docking alignment for both charging and safe storage. • Gentle yet effective sweeping action tailored for smooth surfaces—no vacuum module is required. • On-board mapping that lets the robot learn room outlines and set virtual keep-out areas without having to install physical barriers. Size is important, everything must fit within a typical adult palm, including drivetrain, battery pack, and control electronics. I’m open on the exact sensor suite (infrared, ultrasonic, LIDAR, or hybrids) as long as obstacle avoidance is consistent and mapping remains accurate but for simplicity happy to have a mapping mode where physical barriers can be placed with the robot having a memory of what was recorded Deliverables 1. Fully a...

...with functional interior/exterior features. This is NOT a production car — it’s a 3D-printed RC model with simplified mechanisms. We already prepared a PDF guide that shows the design direction, proportions, and features. It’s only a guide — we’re flexible and open to improvements or refinements you recommend. We need a designer who can model the body + chassis and create basic servo-driven linkages for doors, bonnet, and boot. Vehicle dimensions, the ideal engine type for the vehicle (mockup), the gearbox (mockup), and some electrical parts like LEDs and sensors will all be finalized together during the design process. ⸻ What We Need: BODY: • Exterior 3D model (clean, modern, quadricycle-inspired) • Two falcon-style doors (ser...

I’m ...project flowing: • I’ll provide reference sketches, basic dimensions and a short feature list. • You build the parametric surface and solid geometry directly in SolidWorks, keeping the feature tree clean, named and easy to edit. • Native .SLDPRT / .SLDASM files are the primary deliverable, with STEP or IGES exports included for downstream use. The model does not need an interior, engine or full drivetrain at this stage—only the exterior bodywork and aero elements mentioned above. If you have previous motorsport or automotive surfacing examples, that will help me gauge fit right away. I’m happy to answer any technical questions before you begin so that the first iteration is already close to final. Looking forward to seeing how you can ...

...mechanical design that can be reliably driven by a human operator across mixed terrain—everything from loose sand and gravel to muddy, uneven ground. No autonomy is required; all movement will be manually controlled, so the focus is on a robust chassis, suspension and drivetrain that absorb shocks, maintain traction and keep the rover stable when the surface changes suddenly. no need to design any electronics. just the mechanical part Here is what I’m after: • A rugged, lightweight frame sized for transport in a standard SUV. • Articulated suspension or another proven solution that copes with rocks, ruts and patches of deep mud without high centering. • Can not use Tracks. either low width wheel or hexapod style desing • Driv...

Project: Design a low-cost tracked robot base (“Grung Hog”) with budget-friendly, off-the-shelf parts. I already have: Reference photos of the platform Rough blueprints with approximate dimensions (track shape, sprocket sizes, wheelbase, etc.) A clear idea of the track shape and layout I want (triangular style with one lower roller). I now need a mechanical designer to turn this into a proper, buildable design with step-by-step documentation. Scope of Work Refine Concept & Dimensions Review my sketches and photos of the prototype / reference machines. Confirm final dimensions for: Frame size Track path (drive sprocket, idler, lower roller) Ground clearance & overall height Make sure design fits commercially available tracks or chain-an...

I am developing a small electric vehicle and I need a gearbox that is truly affordable, exceptionally lightweight, and easy to maintain. The focus is on a compact, modular design that can be produced on common desktop FDM printers. Lightweight performance is my top priority, so every gram you can shave off the finished assembly is valuable, provided structural integrity is never compromised. You are free to recommend the most suitable printable polymer—PLA, ABS, Nylon, or a blend—so long as the final parts remain cost-effective for low-volume production and straightforward to swap out when wear occurs. I expect the design to be optimized for standard hobby-grade stepper or small DC motors typically used in e-scooters and micro-EVs, with gearing ratios that delive...

The task is to visit an upcoming auto auction and carry out a full vehicle ins...clear write-up, sharp photos, and supporting video clips that show cold-start, idle, revs, under-carriage, paint reflections, and anything else that illustrates your findings. Deliverables: • Comprehensive written report (PDF or Word) arranged by system/area • High-resolution photos covering mechanicals, body, VIN plates, odometer, and any defects • Short videos highlighting engine start-up, drivetrain sound, walk-around, and any problem areas Experience with auction inspections, paint-depth checks, and basic OBD or diagnostic tools will make the job run smoothly. Media can be shared through a cloud folder of your choice the same day the inspection is completed so I can make a fas...

...through extreme heat and heavy rain. I need complete mechanical design support—enough detail that a local fabricator can cut metal today and a prototype can roll tomorrow. Here’s what I expect you to deliver: • Concept iterations that show how the drive, brush/nozzle, and enclosure work together. • Fully-parametric 3D CAD models (STEP/SolidWorks or similar) covering the complete mechanism—chassis, drivetrain, cleaning head, water routing, seals, fasteners, and service panels. • Detailed 2D fabrication drawings with tolerances, GD&T where critical, and exploded views for assembly. • A consolidated Bill of Materials listing material grades, purchased components, and indicative suppliers available in my region. • Des...

My bicycle’s chain has snapped and I need someone who can get it rolling again. The job starts with advising me on the exact replacement chain I should buy— I don’t have the spare part yet— and ends with the chain installed, tensioned, and the drivetrain fully checked. Deliverables: • Recommend the correct chain (length, width, speed compatibility) and guide me on where to purchase it. • Install the new chain with proper tools, lube it, and set correct tension. • Fine-tune gears, test-ride, and confirm the bike shifts smoothly and safely. If you routinely work on bikes and have a chain breaker, quick-link pliers, and the usual toolkit, this will be an easy service call. Please let me know when you can come by and roughly how much time you...

...Backend Features: Create and manage pre-configured setups, components, colors available for the differents bike frame models. Store Admin interface to manage all configurable components. Database Requirements: Store user-selected configurations and customization options. Mobile Compatibility: Fully responsive and optimized for performance. Customization Options: Selection of components (wheels, drivetrain, saddle, handlebars, etc.). real-time update of products image using 3D photos system Real-time price visualization. Required Skills: Advanced WordPress development (custom plugins, API integration). CSS and SVG technoogy Expertise in JavaScript (Vue.js, React, or ) for dynamic interactions. Ability to optimize performance for a smooth user experience. Experience in UX/UI fo...

I’m starting this go-kart project from a blank page and need an AutoCAD specialist to turn our ideas into a bui...follow without guessing. Key points we’ll cover together • Overall layout, driver position, and ground clearance • Tubing profiles and joint intersections for the frame and chassis • Mounting points for column, spindles, pedals, and tie-rods • Space allocation for a small engine so future drivetrain work drops in smoothly Deliverables • Master AutoCAD (.dwg) file with layers clearly named • Dimensioned PDF print set ready for shop use • Brief assumption/notes sheet so anyone can understand design intent Accuracy and clarity are essential; the drawing must stand on its own in the workshop. If this soun...

I have a rough concept for a hybrid engine and now need an experienced mechanical engineer to turn that idea into an actionable design. The concept is still early, so I’m looking for help on almost every front—mechanical layout, electrical integration for the hybrid drivetrain, and thermal management to keep everything running efficiently. Here’s what I expect from our collaboration: • Refine the conceptual drawings into clear 3D CAD models ready for review. • Run the core mechanical, electrical, and thermal calculations—power-to-weight, cooling loads, efficiency curves, and safety margins. • Produce a concise technical specification sheet that includes materials, key dimensions, performance targets, and tolerance stack-ups. &bull...

I need a complete Simulink representation of a train’s traction & propulsion chain. The focus is on detailed component behaviour, not a high-level sketch, so every block has to capture dynamics and losses that matter on the rails. Scope • Electric motor: build or adapt a physics-based induction / permanent-magnet model with efficiency map, torque-speed curv...Acceptance criteria • Runs out-of-the-box on my machine • Key curves (speed, current, torque) track published reference data within ±10 % • Blocks and signals are clearly labelled for future extension (braking, passenger comfort modules, etc.) If you already work with Simscape Electrical or similar railway toolboxes, mention that in your proposal—the closer this feels to a productio...

I am kicking off the full exterior and systems design for a next-generation supercar and need your expertise inside Siemens NX and CATIA to bring the vision to life. The project balances three pillars—eye-catching aesthetics, all-out performance, and seamless hybrid-power integration—but the spotlight is firmly on creating a truly unique exterior silhouette that will stand out in any paddock or showroom. The workflow begins with concept sketches or quick surface studies and moves rapidly into detailed Class-A surfacing, aerodynamic refinement, and hybrid-system packaging. Expect close collaboration on air-flow management around the front splitter, side intakes, and rear diffuser while ensuring the battery and e-motor layout keep weight distribution razor-sharp. Deliver...

...launch the truck from rest to the specified speed • The kinetic energy at that speed • The energy that must be dissipated to bring the truck to a complete stop - The numbers of diesel liters consumed to make 1000 stops a day considering that the engine has a certain efficacy (say 20%) Present the equations you use, state every assumption, and keep the math transparent—if you factor in drivetrain losses, rolling resistance, note it clearly. A summary explaining your method alongside the calculation file will complete the deliverable. I will be hiring three engineers for comparison of the resulsts. You can bid any amount for now and I will explain the work more in details after the people will be hired. After you review the details, you’ll be free to...

...production-ready mechanical solution. That means a drivetrain and layout that fit a vending-machine form factor, food-safe materials, reliable heating elements, precision cutters, flavour-dispensing hoppers, and an integrated packaging module. Your design should be detailed enough for fabrication and easy to service in the field. Deliverables • 3D CAD files (STEP or SolidWorks) showing the full mechanism • Exploded views and assembly drawings with part numbers • Bill of Materials including off-the-shelf components and food-grade specifications • Basic control logic diagram outlining sensor and actuator points • Recommendations on heating technology, safety interlocks, and cleaning/maintenance access Acceptance Criteria The design...