{"id":72953,"key":"Vacuum_Ejector","title":"Vacuum Ejector","latest":{"id":1261327,"timestamp":"2026-08-18T03:43:33Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"{{L3999 notice}}\n\nVacuum Ejector.\n\n[[Image:Vacuum Ejector.JPG|thumb|Vacuum Ejector]]\n\n=== Project ===\n\n----\nVacuum is widely used in various laboratory experiments. Vacuum is commonly used in applications such as filtration, degassing, and condensation. Most of modern fume hoods are equipped with vacuum ejectors generated by water current. The water current can generate relatively low vacuum pressure and easily adjust the degree of power. However, there is a risk of water leaking into system that may lead to a failure experiment, especially in filtration. Therefore, the air current is preferred than the water current for vacuum ejector. This project is manufacturing vacuum ejector by 3D printing (FDM) as one-body design. The material was selected as ABS which is performance an excellent mechanical properties such as stiffness, toughness and impact strength.\n\n=== Designer ===\n\n----\nPhan Huy Nguyen, Aalto University, Department of chemical engineering\n\n=== Bill of Materials ===\n\n----\n\n# Vacuum Ejector from ABS\n\n=== Directions ===\n\n----\n\n# Download the design files from the [https://3dprint.nih.gov/discover/3dpx-008229 NIH 3D Printing Exchange]If modifications to the design is needed change the parameters found at the beginning of the openscad.\n# After modifications, export STL-file.\n# Use CURA software to print the models.\n\n=== Estimated Costs ===\n\n----\nThe material is common engineering plastic, ABS, is rather low price. The design can be scale up/down easily; hence, amount of used material is depend on the design. For standard design, the estimated cost of material is 3 Euros.\n\n=== Vacuum Ejector ===\n\n----\n<gallery>\nImage:Vacuum Ejector.jpg|: Vacuum Ejector\n</gallery>\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}"}