Parametric Picatinny rail v2.1

thingiverse

Are you looking for a quick, convenient way to put a Picatinny rail in an OpenSCAD design? Do you want to generate a standalone rail with ports for mounting it with screws?Hopefully you do, because that's what this does. This is also on printables, and while I'll try to keep both up to date, the printables version will be the one that updates first. (Also, if you'd like to do me a favor, both websites are equally free for you but downloading/liking on printables might get me a spool of filament some day.)There's two .scad files. Both of them have detailed instructions as comments at the beginning of the file. “Picatinny rail.scad” defines a module which can be used to create rails with a wide range of customization options. You can use it as a library.“Picatinny customizer.scad” uses that library and OpenSCAD's new (as of the time of initial upload) customizer feature to create a rail that can be configured via checkboxes, sliders, and menus instead of OpenSCAD code. I'm using dimensions from standardization agreement 4694. This is the same as an original Picatinny rail except that the dimensions are metric (standard for 3d printing anyways) and the tolerances are different (but those depend on your printer anyways).You can set (but do not need to; all of these have defaults or can be calculated from other parameters):LengthNumber of slotsExtension of the rail below the xy plane, which is useful for mounting to a surface in a design without a zero-width gapChamfer at the ends of the railThe spacing of the recoil slots relative to the ends of the railThe positions of the screw ports for mounting a standalone railThe type of screws used (including socket head and countersunk), and clearance around themHow the screw ports interact with recoil slots - you might not want to have recoil slots overlapping the screw positions.Changes since 2.0:Changed file names to not have spaces becasue Printables replaced them with dashes, resulting in the customizer not finding the library (and I'm keeping things the same here for consistency). Changed how screw port positions are specified in the customizer to a comma-separated list in a string, since OpenSCAD's customizer doesn't support vectors with a variable number of elements.