frames

Exported revision 7174, 20210902173817, by Tim

{{OpenJSCAD|title=CAD|code=

// Here we define the user editable parameters:

function getParameterDefinitions() {

return [

{ type: 'float', name: 'beam_width', caption: 'Beam width', default: 40 },

{ type: 'float', name: 'hole_radius', caption: 'Radius of holes', default: 6 },

{ type: 'choice', name: 'length', caption: 'Frame length (holes)', values: [2,3,4,5,10,15,20,25,30,40,50], captions: ["2","3","4","5","10","15","20","25","30","40","50"], default: 10 }

];

}

// zBeam(length) - create a vertical bitbeam strut 'length' long

// xBeam(length) - create a horizontal bitbeam strug along the X axis

// yBeam(length) - create a horizontal bitbeam strut along the Y axis

// translateBeam(beam, [x, y, z]) - translate bitbeam struts in X, Y, or Z axes in units 'beam_width'

var cylresolution=16;

var beam_width=38;

var hole_radius=8;

function main(params) {

cylresolution=(params.quality == "1")? 64:16;

beam_width=params.beam_width;

hole_radius=params.hole_radius;

return zBeam(params.length);

}

function xHole(i) {

return CSG.cylinder( {

start: [-1, beam_width/2, i*beam_width + beam_width/2],

end: [beam_width+1, beam_width/2, i*beam_width + beam_width/2],

radius: hole_radius,

resolution: cylresolution

} );

}

function yHole(i) {

return CSG.cylinder( {

start: [beam_width/2, -1, i*beam_width + beam_width/2],

end: [beam_width/2, beam_width+1, i*beam_width + beam_width/2],

radius: hole_radius,

resolution: cylresolution

} );

}

function zBeam(length) {

var cube = CSG.cube({

center: [beam_width/2, beam_width/2, (length*beam_width)/2],

radius: [beam_width/2, beam_width/2, (length*beam_width)/2]

});

var holes = [];

for (var i = 0; i < length; i++)

{

holes.push(xHole(i));

holes.push(yHole(i));

}

var beam = cube.subtract(holes);

beam.properties.myConnector = new CSG.Connector([10, 0, 0], [1, 0, 0], [0, 0, 1]);

return beam;

}

function yBeam(length) {

return translateBeam(zBeam(length).rotateX(-90), [0,0,1]);

}

function xBeam(length) {

return translateBeam(zBeam(length).rotateY(90), [0,0,1]);

}

function translateBeam(beam, t_vector) {

return beam.translate(t_vector.map(function(n) { return beam_width*n; }));

}

}}