Simple fixture to permanently mount a Garmin GPSMAP 400 series chartplotter to a bulkhead. A string can be attached between the cover (drill small hole in handle) and the fixture printed with PLA 0.2mm layer height. I was unable to print this using ABS as layers separated during printing The fixture is mounted to the bulkhead using 4 screws and some sealant. The chartplotter itself is glued in place using sealent/adhesive (sikaflex). Five holes are required in the bulkhead, four for mounting the fixture and one for the connector/cable which protrudes on the aft side