Science Electronic Education Primary Electromagnetic Gun Experimental Model DIY

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eBay Feature Products Science Electronic Education Primary Electromagnetic Gun Experimental Model DIY Product Feature: Mini Magnet Shooting Kit: The welding practice kit is a very interesting project and a great desktop toy. The coil gun can display electromagnetic force well and can shoot small cylindrical metal at close range. Easy to assemble: This kit can usually be easily assembled. If it cannot work after welding, please contact us for support. The working principle of this shooting toy is to use the ampere force generated by the electromagnetic field in the electromagnetic system to accelerate the metal rod. When assembling, this is a very interesting toy and a good lesson on small circuits and assembly. High integration: We concentrate all components on one circuit. This product has high integration and is not easily damaged. This greatly simplifies the difficulty of assembly. Even the parts are simple. 【 Warning 】: Do not touch metal parts when starting up!!! The project is being carried out under high pressure Product parameters: Power supply voltage: 4.5V (3 No. 7 batteries, all packages shipped without batteries, parents need to bring 3 No. 7 batteries) Range: 6-8 meters; Usage: Move the switch to the left for charging, and the green and colorful lights will light up during charging. The voltage at the capacitor 2 terminal will gradually increase to around 90V, and the charging indicator light will light up. This is to turn the switch to the off end, and then press the red emission button to launch. The power is relatively small and suitable for experimentation. Although it is relatively safe, do not point the barrel towards weak areas such as the eyes during shooting. Children under the age of 14 should use it under adult supervision! Advantages Introduction: 1. The charging speed is fast, it can be fully charged in 10-20 seconds (the new battery charging speed is relatively fast), and there is no need to rest after launch to continue charging and use. 2. The circuit board is already wired internally, and buyers can simply solder or attach the corresponding devices according to the device symbols and parameters printed on the circuit board, without the need to connect the wires themselves, The finished product is simple and beautiful, without Spider web like wiring, so it is relatively simple to make and has a high success rate. 3. We used a machine to wrap the launch coil before shipping, which saves the buyer from wrapping the launch coil themselves. The transmission coil is wound 400 times with 0.49mm enameled wire. If it is manually wound, it will fall asleep from 1 to 400 times, which is very annoying. Tools that need to be provided by oneself: The buyer needs to provide the following necessary tools and materials: soldering iron, soldering tin, glue gun, glue stick, and water nozzle pliers; DIY Kits list: DIY bulk shipment list: Component Name Quantity PCB board * 1 Coil * 1 Barrel * 1 0-99V Voltmeter * 1 7 # 3 battery box (pasted with Double-sided tape) * 1 4.7K resistor * 2 1K resistor * 1 5MM green LED * 1 5MM red emitting LED * 1 5MM seven color LED * 1 1N4148 diode * 1 91V 1W voltage regulator diode * 1 9013 diode * 2 Non self-locking button * 1 Button switch * 1 33UF-100UF 25V Electrolytic capacitor * 1 680U 100V capacitor*1 14 * 9 * 5 magnetic ring * 1 0.35 enameled wire 0.5m * 1 Single core wire 20CM red * 1 Single core wire 20CM black * 1 2 * 16 screws (emitter) * 10 XH2.54-2P straight seat * 1 XH2.54-2P cable * 1 Acrylic board * 1 set Riding card * 1 M3 cap nut * 1 M3 gasket * 1 M3 nut * 5 M3 * 10 screws * 10 M3 * 25 nylon column * 4 Package : DIY kits or Finish board according buyer choose Shipping Policy Item Location Payment Mathord Returns Policy About Feedback Shipping Policy 1. We Ship to Worldwide 2. We ship your orders within 1-2 business days after the payment cleared. 3. Item shipped from China via china Post Airmail, reach most of the countries within 2 to 4 weeks. 4. Delivery time depends on destination and other factors, it may takes up to 20 days. If you don’t receive the item after 30 days,please keep in touch with us, we’ll investigate and solve the delivery problem. 5. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding or buying. Item Location ShenZhen Payment Mathord 1. We accept PAYPAL only. 2. Payment must be made within 7 days of auction closing (Unpaid dispute will automatically open when item is not paid in 7 days). 3. PLEASE NOTE: SHIPPING&HANDING DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. 4. Please list your special requests (color, packages, value of declaration, etc.) in the EBAY NOTES SECTION when you make payment Returns Policy 1. Customer satisfaction is our top goal. All products are quality checked. They are new and in good condition when shipped to our customers. If product is defective or damage upon arrival, or wrong product shipped, please keep in touch with us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 2. Please keep in touch with us first if you have anyproblems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 3. We appreciate your Positive Feedback, and will do the same in return. PLEASE DO NOT leave negative feedback without first communication with us. Please allow max 24 HOURS for us to respond About Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.It is impossible to address issues if we do not know about them!

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