Recently, three students from Stanford University, Alex Jais, Manal Dia and Rohan Maheshwari, jointly developed a 3D printer that can automatically print out flat metal wires on circuit boards to form usable electronic circuits. This printer is called Rabbit Proto. It replaces the plastic nozzle of a traditional 3D printer with a conductive material nozzle, so it can "print" electronic circuits on solids. You can use it to build a structured and conductive hybrid system . This project stems from the design team's work in a design class, they made a device that can "print e-ink on 3D surfaces". They made this device by adding a simple nozzle and conductive ink to a standard 3D printer. Eventually, they controlled the price of the single-nozzle model printing kit to $ 350. They also made a connection The dual nozzle system to a standard 3D printer costs $ 450. The second device is named Super Rabbit, and you can use it to print both plastic and metal wires. In addition, the design team has also released a 3D RepRap printer integrated solution worth $ 2,499. The printer is already equipped with a print head, which can reduce the user's setup time. The importance of this device is that it can 3D print the complete object with embedded circuit in a few minutes. Circuit systems are usually made by placing printed circuit boards in empty boxes or epoxy resins. The 3D printing method can make thinner, higher-strength electronic components, but it cannot print components with internal circuits. Current information about Rabbit Proto, including source code, examples and documentation, can be downloaded on GitHub. All models are currently available for pre-order, according to the plan will start shipping this summer. QILEJUN R/C STUNT CAR QILEJUN CAR TOY Shantou Chenghai Sweet Baby Toys Firm , https://www.sweetbabytoys.com