Parametric Sprocket

• http://www.thingiverse.com/thing:87647/#files - has a good 15 tooth example - Bike Sprocket
• The above was derived from http://www.thingiverse.com/thing:7918

Bulldozer 2015 Usage

{{Hint|The bulldozer from 2015 used an 8 tooth sprocket, generated with sprocket(8,5,7.5,8,0.2); in the last line of the Editor

Exporting DXFs from 3D Objects in OpenSCAD

• Exporting DXFs - [1] - essentially - load and flatten, then export DXF

• Note: stock Export DXF does not work for 3D files - they need to be projected first.

• To project - projection(cut=false) import("sprocket.stl"); STL file must exist in same directory

• Sample file for exercise in OpenSCAD - the sprocket STL and the .scad file that loads the STL and does a 2D projection. Note that the directory must be correct. File:Sprocketexample.zip
• Note: original srocket was generated using Parametric Sprocket Generator using sprocket(12,5,7.5,8,0.2);