DIY Club

  How to Build a DIY Mini CNC Engraver Introduction A Mini CNC Engraver is a small, computer-controlled machine used to engrave text, logos, and patterns on materials like metal, wood, acrylic, and plastic. It is perfect for DIY projects, small businesses, and hobbyists looking to create custom designs. In this guide, we’ll show you how to build a DIY Mini CNC Engraver step by step. Materials Required Arduino Board (Uno or Mega) CNC Shield (for motor control) Stepper Motors (NEMA 17 or similar) GRBL Firmware (for CNC control) Aluminum or Wooden Frame Linear Rails and Bearings Spindle Motor or Laser Module Power Supply (12V-24V, depending on motor requirements) End Stops and Limit Switches Screws, Nuts, and Bolts Computer with CNC Software (GRBL Controller, Universal G-code Sender, etc.) Step-by-Step Guide Step 1: Assemble the Frame Use aluminum or wood to build a sturdy frame for the engraver. Ensure it is rigid and level to avoid engraving errors. Step 2: Install the Stepper ...

  How to Build a DIY Battery Spot Welder Introduction A DIY battery spot welder is an essential tool for making battery packs, especially for lithium-ion cells used in electronics projects, e-bikes, and power banks. Instead of buying an expensive commercial welder, you can build one at home with a simple setup. This guide will show you how. Materials Required 12V Car Battery or Super Capacitors (for power source) Thick Copper Wire (to handle high current) Copper Electrodes (or welding tips) Foot Pedal or Switch (for activation) Wooden or Plastic Enclosure (for safety) Heat-resistant Gloves & Safety Glasses (for protection) Step-by-Step Guide Step 1: Prepare the Power Source Use a 12V car battery or a set of supercapacitors for the high-current power source. Ensure proper insulation and safety precautions. Step 2: Attach the Electrodes Connect copper electrodes to the output wires securely. Ensure a firm connection for optimal conductivity. Step 3: Build the Enclosure ...

  How to Build a DIY Spot Welder Introduction A DIY spot welder is a handy tool for welding thin metal sheets, battery packs, and small metal projects. Instead of purchasing an expensive commercial welder, you can build one at home using a microwave transformer or a car battery. This guide will walk you through the steps. Materials Required Microwave Oven Transformer (MOT) (or a 12V car battery) Copper Wires (thick gauge for high current) Copper Electrodes (or welding tips) Wooden or Plastic Enclosure (for safety) Power Switch & Foot Pedal (optional for better control) Heat-resistant Gloves & Safety Glasses (for protection) Step-by-Step Guide Step 1: Modify the Microwave Transformer Remove the secondary coil of the microwave oven transformer (MOT) . Replace it with thick copper wire (3-5 turns) to create a high-current, low-voltage output. Step 2: Attach the Electrodes Connect copper electrodes (or welding tips) to the output wires. Ensure a fir...

  How to Build a DIY Soldering Fume Extractor Introduction A soldering fume extractor is an essential tool for electronics enthusiasts, preventing harmful fumes from inhalation while soldering. This simple DIY project will help you build an efficient and low-cost fume extractor for a safer workspace. Materials Required 12V PC Fan (or any small cooling fan) Activated Carbon Filter (available online or from air purifiers) Plastic or Metal Casing (to house the fan and filter) Soldering Iron & Wire 12V Power Adapter On/Off Switch (optional) Step-by-Step Guide Step 1: Prepare the Fan Take a 12V PC fan and ensure it is working properly. Identify the positive and negative wires for power connection. Step 2: Create the Casing Use a plastic box or metal frame to house the fan. Make sure it has enough space to fit the fan and the activated carbon filter. Step 3: Attach the Filter Cut the activated carbon filter to the same size as the fan. Place it securely in front of the fan to en...

  How to Build a DIY PCB Etching Machine Introduction A PCB etching machine is a great tool for electronics enthusiasts and small businesses. It allows you to create printed circuit boards (PCBs) at home, reducing costs and increasing customization. In this guide, we'll show you how to build your own DIY PCB etching machine step by step. Materials Required Plastic or Glass Container (for etching solution) Ferric Chloride (FeCl3) or Ammonium Persulfate (etching solution) Small Air Pump (aquarium pump works well) Heater (optional) (to speed up the process) PCB Board (Copper Clad) Permanent Marker or UV Resist Film (for circuit design) Gloves and Safety Glasses (for protection) Step-by-Step Guide Step 1: Prepare the Container Choose a plastic or glass container large enough to submerge the PCB completely. Make sure it is chemical-resistant to avoid damage from the etching solution. Step 2: Install the Air Pump Attach an air pump with tubing and place it at the bottom of the co...