OpenSCAD Pulley Library

thingiverse

OpenSCAD_Pulley_Library: An OpenSCAD library to create multiple types of pulleys from belt sizes in 3D. Thingiverse Thing: 2105020. Check out on GitHub at http://machineree.com/#openscad. Version 01, February 12, 2017. linkages.scad: 3D Pulleys includes step and customstep up to 6 pulleys. Add the OpenSCAD library folder to your library folder in OpenSCAD and use the include function to begin using these modules. include OpenSCAD Libraries (Manual): Default units are inches. Pulley Modules module pulley(type="4L", definedD, arborD, key=.125, res=60, padding=true, screw=false) type: type of belt - 2L, 3L, 4L, 5L, A, B, C, D, E, 3V, 5V, 8V definedD: desired outer diameter of the pulley arborD: arbor or spindle diameter, through the pulley key: square key slot - default is 1/8" res: resolution of the circles - default is $fn=60 padding: adds a layer on either side of the pulley dependant upon the belt width screw: places a set screw hole to be tapped that is lined up with the key to be locked on the arbor/spindle module custompulley(beltB, beltH, beltangle, definedD, arborD, key=.125, res=60, padding=true, screw=false) beltB: width of the belt beltH: height of the belt beltangle: angle of the belt definedD: desired outer diameter of the pulley arborD: arbor or spindle diameter, through the pulley key: square key slot - default is 1/8" res: resolution of the circles - default is $fn=60 padding: adds a layer on either side of the pulley dependant upon the belt width screw: places a set screw hole to be tapped that is lined up with the key to be locked on the arbor/spindle module stepN(type="4L", dia1,dia2,...,diaN, arborD, key=.125, res=60, padding=true, screw=false) type: type of belt - 2L, 3L, 4L, 5L, A, B, C, D, E, 3V, 5V, 8V diaN: desired outer diameter of each pulley, enter each diameter in order arborD: arbor or spindle diameter, through the pulley key: square key slot - default is 1/8" res: resolution of the circles - default is $fn=60 padding: adds a layer on either side of the pulley dependant upon the belt width screw: automatically places a set screw on the second pulley module customstepN(beltB, beltH, beltangle, dia1,dia2,...,diaN, arborD, key=.125, res=60, padding=true, screw=false) beltB: width of the belt beltH: height of the belt beltangle: angle of the belt diaN: desired outer diameter of each pulley, enter each diameter in order arborD: arbor or spindle diameter, through the pulley key: square key slot - default is 1/8" res: resolution of the circles - default is $fn=60 padding: adds a layer on either side of the pulley dependant upon the belt width screw: places a set screw hole to be tapped that is lined up with the key to be locked on the arbor/spindle Examples! Single Pulley - 5L Belt, 6" Outer Diameter, 5/8" center hole. This displays the simplicity of the pulley library to make pulleys quickly. include pulley("5L", 6, 5/8); Single Pulley - 4L Belt, 4" Outer Diameter, 1/2" Center Bore, Keyway of .2", $fn=100, .218" Set Screw include pulley("4L", 4, 1/2, key=.2,, res=100, screw=true); Single Pulley - Custom Belt(.5125" width/.475 height/34 deg. angle), 5" Outer Diameter, 5/8" Center Bore Added Animation to spin pulley to see all sides: include rotate([360*$t,360*$t,90]) custompulley(.5125,.475, 34, 5, 5/8); Output of help within OpenSCAD console: include pulleyhelp();