The Liverpool Telescope group have been designing astronomical instruments for the LT and other 2-4m class telescopes for a number of years. This paper covers a variety of issues which need to be addressed in order to benefit from the unique advantages of 3D printing. In particular we discuss our experience of designing, building and testing a simple prototype structure that is analagous to a simple reflecting grating spectrograph.
Iain A. Steele, Helen Jermak, Stuart Bates, and Ian Baker, "3D-printed optical instrumentation: practical starter designs and initial experiences," Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107060S (Presented at SPIE Astronomical Telescopes + Instrumentation: June 11, 2018; Published: 10 July 2018); https://doi.org/10.1117/12.2312063.
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