Combined Manfrotto RC2 quick release block and GoPro Hero 3 flat mount that allows easy attachment of GoPro Hero 3 camera to many Manfrotto tripods. Solidworks file included. This is the remix of 2 designs created by other people: Manfrotto 323 RC2 Quick Release by Bob Jenney https://grabcad.com/library/manfrotto-323-rc2-quick-release Fits my Manfrotto 804 RC2 like a charm. Tested on Replicator 2x. Printed at 0.2 mm with 60% infill and 4 shells using dual extrusion with HIPS supports and MW 2.4.1 (awesome supports handling). Also needed Pacman Helper Disk V2 (by midniteandy) to prevent corner lifting. http://www.thingiverse.com/thing:112436 NB. I have slightly re-sized original quick release block to create snugger fit. I also recommend 10-15 min acetone vapour bath (@80 deg C) to add extra strength and polish.Tested on Replicator 2x. Printed at 0.2 mm with 60% infill and 4 shells using dual extrusion with HIPS supports and MW 2.4.1 (awesome supports handling). Also needed Pacman Helper Disk V2 (by midniteandy) to prevent corner lifting). http://www.thingiverse.com/thing:112436 NB. I have slightly re-sized original quick release block to create tighter fit. I also recommend 10-15 min acetone vapour bath (@80 deg C) to add extra strength and polish.