Mini 13 frame on rail grid remix

We found it incredibly difficult to print all the parts of the mini 13 frame in one go, and the supplied version with support rails didn't slice in Cura, and when sliced in Prusaslicer were only a single layer thick, which didn't hold up well with the nozzle head moving about. This version has a rail system with thinned out spurs line you'd get for a kit card or an extrusion moulded miniature. A happy side effect is that everything comes off the print bed as one piece, which makes it easier not to lose parts in between printing and assembly. Happy printing!