Goggles case that snaps shut after super-glueing in magnets.
v1.0 is for 8x3mm magnets and v1.2 is for 12x5 mm magnets. Customizable to any size using the parameters at the top of the .scad files.
Hinges are printed in so no need for a separate hinge pin.
An idea for a remix would be to sink the magnet holes into the case 1 mm or so, then split the gcode up when printing and put the magnet in before the magnet hole is covered with it's first layer.
Haven't had much luck finding out if PLA is going to dissolve in cholrine water and would appreciate any feedback in the comments as to what filament materials would be good for chlorine water and saltwater.
I tried printing at a lower 10% infill, but was having problems with top layers not sticking. If the print layer height was too high, may begin to start having problems with the hinge. I used a 4 mm brim to improve bed adhesion.
Need to glue in the magnets. I originally used loctite to hold in neodymium 8mm x 3mm magnets, but after less than a week, the glue broke.
Recommend using weaker magnets than neodymium.
Couldn't find a large enough goggle case already existing. Also wanted built-in hinges like I have seen on 3D printed keychains.
Was able to use Minkowski sums to quickly get the rounded box shape, and then just several small modifications to get the other shapes.
The hinges are designed with a small gap between the male and female shapes similar to supports. When the male shape is first printed it will sag a little until it contacts the female shape around it at a small location. After printing, this bond is broken when rotating the case for the first time.