This is a lab jack, which is a height adjustable platform ideal for mounting optomechanical sub-assemblies, which require height adjustment.
This component is part of the Open-source optics project, whose goal is to radically reduce the cost of scientific optical hardware: by the Michigan Tech's Open Sustainability Technology Research Group.
For similar see the Open-Source Lab How to Build Your Own Hardware and Reduce Research Costs
Bar_Holder.stl | 16.0KB | |
Central_Bars.stl | 265.7KB | |
Hand_Crank.stl | 1.6MB | |
lab_Jack.scad | 14.5KB | |
Lab_Jack_M4_Gears.stl | 90.3KB | |
Platform.stl | 81.4KB | |
Scissor.stl | 29.7KB |