Filament guide parametric

thingiverse

A support guide ensures that the filament does not rub against upper threaded rods.\nCan set height and several other parameters to fit your printer, designed specifically for my Prusa Mendel, but will work with most printers \nPrint Settings\nPrinter: \n Prusa Mendel Metric\n \n Rafts: \n Doesn't Matter\n \n Supports: \n No\n \n Resolution: \n 0.2mm layers\n \n Infill: \n 30%\n \n Notes: \n Should print with any settings, probably. Nothing complicated. I used a 0.4 tip, 0.2mm layer height, This fit very snugly onto the rods, when still warm from printing. No post-cleaning required for me, if you don't count peeling off the raft I used.\nHow I Designed This\nOpenscad is an excellent program :-)\nHad some difficulties designing the arcs for the inner curves. Solution was picked up from middle school when we learned how to draw curves with a ruler...School wasn't a total waste of time after all.\nFirst version had both openings for the rod-holds outward, thought it would be more springy than it was, decidedly better to use one side outward and one downward, so it can be rotated onto the printer.\n\n \n \n Custom Section\nParameters\n rod_distance = 58; //distance between rods, pretty obvious\nrod_diameter = 8; // standard Prusa rods, if you use M10 please set this to 10\nrod_tolerance = 0.2; //first try was too snug, only possible to screw on...\nholder_width = 15; // the width of the stuff that holds it onto the rods\nholder_thickness = 1.4; how much force is needed to install this 0.67*2~1.4\nholder_opening = 90; //degrees, less will make it difficult to install, more likely to fall off\nguide_width = 5; // the diameter of the ring on top\nguide_diameter = 10; // the guides inner hole diameter\nguide_opening = 5; //mm for 3mm filament\nheight = 30; //distance above rods for the filament hole