How to Design Snap-Fit Joints for 3D Printing
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How to design snap-fit joints for 3D printing | 3D Hubs
Snap-fit joints are a quick and easy way of connecting two 3D printed
There are 2 main types of snap-fit connections that are appropriate for 3D printing: cantilever and annular.
The cantilever is the most common snap-fit joint and consists of a protrusion (some type of bead or hook) at one end of the beam and a structural support at the other end
The radius of the fillet should be at least of 0.5x the thickness of the base of the cantilever
the clip should be at least 5mm wide
For FDM a tolerance of 0.5 mm is recommended
Use a 0.5mm tolerance for FDM snap-fit connections and 0.3mm for all other 3D printing processes.