parametric frame for glasses starting from lens STL

cults3d

Starting from an STL model of the left lens, build a parametric frame for your glasses. Using a hinge design by u:erickso that I further reinforced, as well as his temple design (from this thing). * * * Rev.1: adding taper to lens cutout making supports unncecessary! To use: Download the SCAD file as well as HINGE.STL. Trace the contour of your right lens onto the back of an engineering paper sheet, making sure it sits in the correct angular orientation relative to the paper grid. Scan the sheet using a geometrically accurate scanner (for example the ScannerPro app on iPhone making sure geometry correction is enabled.). Follow this youtube guide to import the scanned image into FreeCAD and trace the contour of the lens. Pad the drawing by the thickness of the lens, then export the body as LEFTLENS.STL in teh same dir as the OpenSCAD script. Measure the width and height of the lens drawing (in MM). Open the SCAD script, enter the lens width, height, and thickness, and adjust the other parameters to the right until the design looks something like this Generate the geometry and export as STL. Download u:erickso's temples Glasses_temple-Left_part.STL and Glasses_temple-Right_part.STL. Print your new FRAMES.STL as well as the temples. Push some PLA filament through the hinge holes and trim it to length. The lenses snap into the frame. The tolerances can be adjusted in the SCAD parameters but the defaults should produce a snug fit, something like this: