Short travel manual translation stage

thingiverse

This manual positioner/translation stage is a low-cost, homemade alternative to commercial models, designed for precise placement and movement of objects. It uses standard nut and screw mechanisms for motion, though more precision screws can be added in future upgrades. The creator has made the source code easily editable and understandable, using readily available materials from McMaster-Carr or local hardware stores. The materials needed include: 2 springs with ID > 3/16", 2 dowel pins with 3/16" diameter and 3" length, 4 bronze oil-impregnated bushings, 7 M3 nuts, 1 M3 screw (30-40mm length), 6 M3 screws (16mm length), and a small square of tape (e.g., kapton). The creator suggests using slightly longer springs for smoother movement. Assembly instructions involve printing end plates, a platform, and a base according to the provided STL files. Tap holes in the platform and place a piece of kapton tape on it for smooth rotation. Assemble the dowels, springs, and bushings, then insert the threaded endplate. Adjust the distance between endplates as needed and attach the base with remaining screws. The creator plans to experiment with alternative designs in future iterations.