Garmin Montana Kayak daybag mount

thingiverse

A mount to attach a Garmin Montana GPS to a kayak daybag closure. Remixes the mount itself - dxf files have been used without changes, while montana_arm_set.scad and montana_attach_plate.scad have been extracted from the original bike mount project with a few minor changes. Many thanks to MoonCactus who generously provided the source files and allowed remixing. fillet_cube.scad is from my openSCAD Primitives library (http://www.thingiverse.com/thing:1679551 or https://github.com/imageguy/openscad_primitives) - code assumes it's under plib directory. Remixed files (montana_short.dxf, montana_large.dxf, montana_arm_set.scad and montana_attach_plate.scad) fall under the original license from MoonCactus. I place no restrictions whatsoever on the use, sharing, etc. of my own code (montana_kayak_daybag.scad, fillet_cube.scad). People had a problem with stability, since the whole assembly is top-heavy. I made a short version, where the mount overlaps the clip. *_short.scad makes the short version, montana_kayak_short_main.stl is the STL of the base modified part, while the clip.stl is just the other part of the clip, unchanged from the previous version. A note of caution - I haven't actually built or used thee short version. I've also built the "shortest" possible version, where the Montana is attached to the clip itself. The STL also has just the mount part of the clip, print clip.stl for the other part. Print Settings Printer: TwoUp Rafts: No Supports: No Infill: solid Notes: I used ABS and solid infill, slicing with 0.2mm layer thickness. Post-Printing Assembly The bag attachment is basically an overgrown clothespin. You will need an axle and a torsion spring. I used 12 or 14 gauge solid brass wire for the axle and a clothespin spring. You will need to drill slanted holes for the torsion spring arms - location depends on the size of your spring. See my GoPro clip mount (http://www.thingiverse.com/thing:1707320) for another instance of the same design. To attach the arms to the mount, you will need four 10mm M3 screws and nuts. Usage The whole thing is pretty top-heavy and will not stay upright when clipped to a twisted daybag closure. I looped a thin bungee, tied on both ends to the daybag, around the top of the Montana and that stabilized it nicely. The mount worked fine on a two week sea kayaking trip on the Great Slave Lake in northern Canada.