improve my Car Air Freshener I already have STEP filesBlind

We're looking for a new and smart way to wring out water from a sponge mop. Currently, there are several methods in the market, including two popular solutions: the Butterfly Sponge Mop folds the sponge head in half to squeeze out water, and the Roller Sponge Mop pushes a round mop heap between two sets of rollers. Reference images of these two methods are included. There are endless versions of these two methods selling all over the world. We're looking for a better and smarter solution that's not only fresh looking but superior in effectiveness than these existing methods.

The challenge is to design a new and improved Step Stool than those in the market place. Pls note: Step Stools are different from Step Ladders. Step Stools usually have 2-Steps or 3-Steps, are lightweight, slim in profile, used inside the home, are usually kept in the kitchen or closet. Ladders often have more than 3 steps, are more heavy, used for big projects, and are stored in the garage or outdoor shed. Attached is a PDF showing some of step stools now selling in the market. The best selling ones are on the first page, and they are 1) lower cost, 2) basic & simple in design and construction (that's how they are low cost), 3) but they usually have boring white frame with black steps. The better designed step stools on page-2 are 1) stylish looking, 2) some are very slim (take up less storage space), 3) some have handles that extend to help balance the user to prevent falls, while others 4) include cut outs on the step to help user "lean" to keep balance, and still others 5) include trays to hold tools. A key concern with Step Stools is SAFETY. Many injuries occur due to poor quality/design/engineer or user lose their balance when over reaching. The winning design will help prevent falls and injuries.

I am looking for an experienced industrial or architectural designer to create a detailed CAD model for a modular dome-shaped storm shelter that can be used both above-ground and underground. The design must prioritize safety, usability, and scalability while adhering to FEMA P-361 standards and withstanding EF6-level winds and debris impact. Project Requirements: Dome Shape: The shelter must have a dome-shaped structure for optimal wind resistance and structural strength. The design should incorporate small reinforced windows to provide natural light and alleviate claustrophobia, ensuring they remain shatterproof and impact-resistant. Modular Design: The shelter must be expandable through interlocking modules. Modules should be designed for easy transport, assembly, and disassembly. Dimensions of a standard unit should accommodate a small family, with the ability to connect additional units for larger groups. Dual Use: The shelter should be adaptable for underground and above-ground installation: Underground Units: Waterproof with corrosion-resistant materials and drainage systems. Above-Ground Units: Anchored securely with reinforced concrete footings. Material Specifications: Use fiber-reinforced concrete, high-strength steel alloys, or other durable materials that balance cost and strength. Include insulation (e.g., polyurethane foam) for temperature regulation and soundproofing. Exterior coating should resist extreme weather, corrosion, and UV rays. Safety Features: Design must include: Reinforced steel doors (airtight and watertight). Integrated ventilation systems (passive and active with air filters). Emergency escape hatch. Ensure all joints and connections can resist detachment during extreme forces. Dimensions: Suggested dimensions for a single module: Diameter: ~15 ft Height: ~8 ft Wall Thickness: 6-8 inches Additional Elements: Anti-slip flooring for underground units. Emergency supply compartments. Backup power integration for lighting and ventilation. Compliance: The design must meet FEMA P-361 standards for tornado shelters and resist impacts from flying debris at extreme wind speeds.

Need a structural steel design for a 40’x40’x 12’ high podium to support a 2 story wood frame house. Metal deck on c purlins and 3” concrete to be poured on metal deck. Prefer columns spacing of 20’.

We are looking to develop an electric ducted fan (EDF) for use on a large VTOL drone. A ducted fan design was selected over an open prop primarily for safety reasons. The hub, nose cone and each fan blade will be made using a carbon fiber 3d printer (Markforged). The duct, stator, inlet and exhaust components will be manufactured using a standard carbon fiber composite layup technique. Each fan blade must not exceed the printers build volume 320 mm x 132 mm x 154 mm. See: https://markforged.com/mark-two/ Ideally the outer diameter of the EDF will not exceed 500 mm. The blade pitch must be carefully thought out, as the EDF will be used for both vertical lift and horizontal flight. Think V-22 Osprey without the variable pitch. The motor dimensions are 150 mm x 100 mm (without shaft). For mount and other data, see: http://alienpowersystem.com/shop/brushless-motors/150100s-sensored-outrunner-brushless-motor-50kv-35000w/. The KV and power (W) can be altered to suit the fan specification. We can also use a completely different motor if necessary. Based on the above, we are hoping for maximum thrust that exceeds 150 Kg. If the size restrictions do not permit a fan design with these thrust levels, we are willing to discuss changes. I.E. larger diameter, double counter rotating prop, variable pitch etc. It should go without saying that the gap between the inner duct and the fan blade tips should be as close as possible (