Thingiverse
Functional 1:32 & 1:20 Knuckle Coupler
by TrotFox
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Photo added 7-18-20: Added photo of larger coupler mated to a Backmann knuckle coupler.
UPDATE 9-24-2019: I'm calling this done! Included are source files so you can customise the couplers or their shanks. 1:20 scale couplers, as pictured, were printed by scaling everything 160% and using 7mm bearing balls. I have also included examples of how I print them, with the body in two pieces to maintain outer detail and allow cleanup of the inner surfaces prior to final assembly. The STL files with
UPDATE 9-24-2019: I'm calling this done! Included are source files so you can customise the couplers or their shanks. 1:20 scale couplers, as pictured, were printed by scaling everything 160% and using 7mm bearing balls. I have also included examples of how I print them, with the body in two pieces to maintain outer detail and allow cleanup of the inner surfaces prior to final assembly. The STL files with
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