Customizable Cap

thingiverse

This started as a project to replace a lost lens cap. I soon realised that I could not make a thin, spring-loaded cap like the original so moved to a more flexible model. By creating a generic drum shape and cutting slits into the skirt of the drum you get a flexible cover that can stretch slightly over the covered object to achieve a snug fit. I added a chamfer on the inside to aid in sliding over the covered object. To customize the device you only need to define 3 variables: 1. internalDiameter - the diameter of the object you want to cover 2. internalDepth - the height of the cover 3. wallThickness - self explanatory. These 3 dimensions determine the overall size of the basic drum shape of the cover. Other variables may be changed as you see fit. 1. numSlits - how many slits to cut in the skirt of the drum 2. slitWidth - self explanatory 3. chamferHeight - height of the chanfer on the internal leading edge 4. cw - width of the chamfer on the top of the cap