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Curta Calculator Type I scaled at 3:1 by mwu | Download free STL model | Printables.com
Amazing! The Curta Mechanical Calculator - EDN
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3D Printing a Curta Calculator: Recreating A Historic Marvel | Simplify3D Software
Reviving the World's First Hand-Held Calculator
Tested - Watch in #VR as Adam walks through the history of analog calculators, culminating in one of his FAVORITE objects: a 3D-printed Curta calculator made by fabricator Marcus Wu! Available on