Fused Filament Fabrication (FFF) is an additive manufacturing process that builds objects by depositing continuous filament or thermoplastic materials (source:wikipedia). Parts printed with the FFF technology are very rigid, which makes them great choices for projects with a rigidity requirement, such as jigs and fixtures,manufacturing aids, and functional production parts.
There are several key elements to consider when preparing 3D models for FFF printing. In this blog post, we are going to share our top 4 tips.
1. Understanding the Minimum Feature Size
When preparing a part with intricate features and tight tolerances, make sure the minimum feature size, extrusion width, and extruder diameter are configured correctly.
For example, when slicing models with software such as the Simplify3D , standard toolpaths are generated as a complete loop. This results in a minimum feature size of about twice the width of extrusion. Small details may not be represented fully in the slice due to the limitations of FFF technology.
The example below displays a hollow cylinder with varying wall thicknesses. A standard .6 mm nozzle will easily print the thicker wall on the left, but is too large to recreate the finer details on the right.