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Discuss your DIY project free with expert professionals. Do it yourself (DIY) is the process of building, modifying, or repairing things without the direct aid of professionals.
Electronics Calculating Resistor Size for 3V Battery
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HVAC Semi-snorkel stove heat transfer
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Lawn/Garden Can You Make Planter Pots from Aircrete?
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RadioInstigator: Building a SIGINT
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Electrical Can Electric Motors Revolutionize Flying Craft Design?
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Electrical Increasing current in an intercom circuit
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A 80 foot tree weighing 4000 pounds will soon fall on my cabin
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Lawn/Garden Soil that expands when it dries?
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Electrical Which Linear Actuator is Best for a Sliding Gate at a Cottage?
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Electrical Options for powering a three phase machine
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Construction Anyone tried "loose lay" vinyl plank flooring?
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Wiring a permanent split capacitor motor
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Wood/Glass/Metal Can One-Way Glass Be Made With Projected Light?
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Electronics Why is my W filament burning in my DIY electron gun project?
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Electrical Create a Moving Sun Sculpture: DIY Art Project Help and Advice
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Wood/Glass/Metal Using a hand saw with ratchet-like teeth
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Electrical Test a cheap Surge Protector Power Strip (US 110V)?
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Electronics Can I pull a network cable from the middle of the run?
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Can you help me find the right hydraulic valve?
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Misc. Where can I purchase this Acrylic container?
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Electronics Material with response to moisture and electrical changes?
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What to Do With TV Projector Optics?
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Appliances Faulty DeWalt Battery charger for power tools
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Construction Project Idea involving Thermodynamics, Robotics and AI?
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Need glue for a Corian shower stall
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Electrical Can a Transformer Be Converted into a Welder Transformer?
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How to create a mini generator that will charge my phone?
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Lawn/Garden Filling cracks in pressure-treated lumber
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Misc. How Can I Best Insulate a Safe to Protect Heat-Sensitive Materials?
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Wood/Glass/Metal Wooden hydraulic mechanical arm
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Appliances Peltier based mini air conditioner not working
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Number of Turns vs. Wire Gauge (BLDC Motor)
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Electrical Enclosed water turbine power generation
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Misc. Can You Build a Hoverboard Using Air Compression and Clever Engineering?
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Auto/Motor How Can I Make My DIY Swirl Push Maker Create Perfect Spirals?
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Thermodynamics (sort of) for a non engineer
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Appliances How Much Motor Power is Needed for a DIY Drum Coffee Roaster?
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Misc. Want to make my own stickers that have that nice glitter texture
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Computer DIY embedded linux microcontroller
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Electrical How to build a DIY laser power meter
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Appliances Daewoo FRS 2021 fridge shutdown fault
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Wood/Glass/Metal How do I stiffen up this metal table?
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Construction How Can You Make DIY Flowable Fill?
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What are the voltage and current in motor brushes?
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Misc. Origami Gripper - Does anyone know the pattern?
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Plumbing Stainless steel house water filter, leaks past o-ring
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House hacks: Creative things you have done around your home?
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Auto/Motor Can Motorcycle Baffle Modifications Silence Exhaust Without Fiberglass?
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Plumbing How do PVC sewer lines get sloped using 90 degree fittings?
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Construction Allowing for drywall when framing an interior room
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Plumbing Should we wrap buried Fernco couplings with something?
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Electrical Help with making a heating element with a 3 phase power supply
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HVAC How to calculate pressure loss across a perforated and corrugated plate?
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Electrical Please double-check my thermal dissipation assumptions
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HVAC How to know if a blower will be able to overcome system resistance?
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Electrical What are good quality step-up converters out there?
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Auto/Motor Where to best increase car engine oil pressure if intervention is needed?
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Thickness of normal and tempered glass for aquarium
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Misc. Analyzing Oscillations of a Metal Semi-cylinder
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Auto/Motor Can a 5 HP Gas Motor and a Flywheel Revolutionize City Driving?
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Optical Lens and Sensor Setup: Detecting Magnified Images
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Plumbing Syringe/Stepper Motor Pump Design
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Electrical My Homemade Battery Spot Welder
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Electrical How Did I Safely Build and Use a Tesla Coil for Entertainment and Education?
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Electrical DIY project about electromagnets
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Electrical Build an electromagnet which can lift up to 3 kg from 26 gauge copper wire
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Electrical Decided to make a Van De Graaff generator
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Misc. Can anyone suggest a suitable material for a Foucault pendulum platform?
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Electrical Where Can I Find a High Voltage DC 30kv - 40kv Generator for My Experiment?
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BI-2 Artist Friend of Science -- Requesting help with this sculpture project
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Electrical Everybody wants to know how to disable auto shutoff on a heating pad
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Misc. Specialty slide rule at the antique store
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Creating a Magnetic Snow Globe: Lightweight Options
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Computer New computer build: Getting out of the Dark Ages
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Optical What are the top DIY optics projects in the Instructables Optics Contest?
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Electrical Heating Pad Failure Build Your Own How Not To Start A Fire
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Wood/Glass/Metal I found an interesting video about Magnetic Balls -- Science is great
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Electrical Minimum conduction voltage between aluminium plates exposed to air?
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Electronics Transmit RF signals directly to receiver in line of sight
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Electrical Electric Hot Water Heater 2000 watt 220 volt run on 110 volt
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Wood/Glass/Metal Anyone here DIY a standing desk?
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Misc. Brainstorming concept for mobile solar array
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HVAC Tips to keep your house cool in summer
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Misc. Electromagnetic chuck ( with winding calculations)
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Misc. Maximizing Friction Coefficient for Mini-Sumo Robot Tires: Tips and Tricks
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Electrical Repair of an old JJ LlOYD T20K tensile machine
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HVAC Understanding the movement of a fluid in a vertical pipe
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Auto/Motor Centrifugal compressor lift aircraft -- engineering help please
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Misc. Seeking inspiration for interesting unfolding furniture
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Photosensor-Brake System for a Small Plastic Car
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Electronics Can I Convert My Guitar Amplifier into a Bluetooth Device?
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Optical Making a vein viewer with LED lights
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Electronics How does this Adruino Code Work?
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Electrical Low Voltage AC-AC or AC-DC Step Up
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Making a tool for polystyrene sculpting
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Audio/Video Audio Streamer for Hearing Aids
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Electronics How Can I Match My LCD Labels to a Tutorial's Labels for an Arduino Project?
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Suggestions for a hobby DIY project?
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Electrical Troubleshooting Crystal Radio: Tips for Building and Improving Reception
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Electrical Why isn’t this Tesla coil working?
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