标签：#3dmodelling

Contents Motivation and Purpose Using an Animation to Visualize Key Concepts Working With the Model 1. Get the Files 2. Choose the Dimensions 3. Inspect the Assembly 4. Export the MakerWorld Plates 5. Attach the Hoses Create the Model Animation Reference Links Motivation and Purpose I made a parametric bayonet connector for AC hoses , to attach such hoses to a mobile AC unit and a typical window kit taking the hot air outside. It is part of my Air Conditioning Collection on MakerWorld . And of course, I prefer code over using some GUI CAD application, leading straight to OpenSCAD as the established standard for 3D-models-as-code. It is also one of the few ways MakerWorld models can be made customizable by the end user. The connector allows attaching a hose with a simple push and a short twist, instead of needing a threaded joint or tools every time the hose is removed. The design has three printable parts: A female connector with bayonet slots on the inside. A male connector with matching lugs. A female adapter with a wider fitting section for joining to an existing tube, like the one on an air intake cover. The male lugs fit into the slots in the female connector. Push the parts together, twist them, and the lugs travel along the horizontal parts of the L-shaped slots. This is the same basic idea used by bayonet light fittings, camera mounts, and other quick-release connectors. See the Bayonet mount overview for useful background. The hose itself is held on the printed connector with a worm-drive hose clamp. A screw on the clamp pulls the perforated band tight around the hose. See the Hose clamp reference for an explanation of that mechanism. Using an Animation to Visualize Key Concepts The OpenSCAD file contains code that creates a 10-scene animation. It shows the female connector turning to expose the slots, the hose and male connector moving into position, the male part twisting to lock, and the parts separating again. It also emphasises the parametric nature of