This a motorized stage to move an optical filter inside a microscope. The project has been designed using FreeCAD Python scripts, so it is fully parametric.
The following parts can be easily 3D-printed without supports:
The design is available here: https://github.com/felipe-m/freecad_filter_stage
which includes more pictures, the Python source code, the generated FreeCAD and STL files, and a small tutorial.
Initially, we started the design using OpenSCAD, and the files are also available: https://github.com/felipe-m/oscad_filter_stage
We have compared the design process using FreeCAD Python scripts and OpenSCAD and have shared the results here: https://doi.org/10.1371/journal.pone.0225795
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OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16117 (Git)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: dbb4cc6415bac848a294f03b80f65e888d531742
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Spanish/Spain (es_ES)