Had some LC Couplers that needed to be added to a patch panel. So designed and printed these and they work perfectly.
Based the design for these on the available patch panel converters for these couplers.
LC Couplers bought from: https://www.canford.co.uk/Products/2006265/46-4268_LC-SM-DUPLEX-PANEL-COUPLER-also-fits-SC-simplex-panel-cutout