E3D+VET exercise: Assembled Pieces

thingiverse

This exercise is part of a series of 30 challenges developed during the E3D+VET program, an Erasmus+ initiative aimed at immersing VET centers in 3D printing technology. The model consists of two parts printed separately, showcasing three unique types with repeating patterns that create inseparable joinery when assembled. The models are based on the lock and key concept, where the clearance between the two parts allows for smooth sliding motion. 1. Dovetail: This model features a basic cube geometry divided into two halves. One half has two protrusions resembling classic dovetail joints in carpentry, while the other half contains two cavities matching the shape of the first half. The connection can only be loosened by pushing both parts in specific directions. There is one possible axis allowing movement (forward and backward) that runs parallel to the axis along which the cavities and protrusions are oriented and constructed. 2. Pentagon: This model is a variation of the Dovetail, with two halves forming a pentagonal shape while maintaining the same construction principles as the Dovetail. 3. Triangular Dovetail: The two halves form an equilateral triangle that can only be loosened by rotating it and then pulling the parts apart. Here, the pattern is rotated around the z-axis and intersected with the triangular body.