101 lines
No EOL
3.4 KiB
OpenSCAD
101 lines
No EOL
3.4 KiB
OpenSCAD
capSizeMSizeMultiplier = 1.66*1.01;
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printingKerfMM = 0.6;
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circleFacets = 60;
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boltColour = "LightSkyBlue";
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boltClearanceColour = "LightSteelBlue";
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module metricBoltHex(mSize, structural=false, recessNut=0, chamfer=false){
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// Hex diameter = mSize * 1.8, (or 2.0 if structural
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// We add 1% to make the hex slip in better
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hexDiameter = (mSize * (structural?2.0:1.8) * 1.01) + printingKerfMM;
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color(boltColour)
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translate([0,0,(mSize*0.7)/2])
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cylinder(d=hexDiameter,h=mSize * 0.7, $fn=6, center=true);
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if(recessNut > 0){
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color(boltClearanceColour)
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translate([0,0,(recessNut/2)*-1])
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cylinder(d=hexDiameter,h=recessNut, $fn=6, center=true);
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}
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if(chamfer){
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chamferHeight = mSize*1.5*0.595;
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color(boltClearanceColour)
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translate([0,0,(mSize * 0.7)+(chamferHeight/2)])
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cylinder(d1=hexDiameter,d2=0,h=chamferHeight, center=true, $fn=6);
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}
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}
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module metricSocketCap(mSize, length, structural=false,recessCap=0, chamfer=false){
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//cap size = M number * 1.5.
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// We add 1% to make the cap head spin nicely in the hole.
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capSize = (mSize * capSizeMSizeMultiplier) + printingKerfMM;
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color(boltColour)
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translate([0,0,(length + ((mSize*1.25)/2))])
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cylinder(d=capSize,h=mSize*1.25, center=true, $fn=circleFacets);
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echo (str("cap size is ", capSize));
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if(recessCap > 0){
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color(boltClearanceColour)
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translate([0,0,(length + ((recessCap/2)+(mSize*1.25)))])
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cylinder(d=capSize,h=recessCap, center=true, $fn=circleFacets);
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}
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if(chamfer){
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color(boltClearanceColour)
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translate([0,0,(length-((mSize*1.5*0.595)/2))])
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cylinder(d2=capSize,d1=0,h=mSize*1.5*0.595, center=true, $fn=circleFacets);
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}
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}
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module metricShaft(mSize, length, structural=false){
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color(boltColour)
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translate([0,0,(length/2)])
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cylinder(d=mSize+printingKerfMM, h=length+0.01, center=true, $fn=circleFacets);
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}
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module metricSocketScrew(mSize, length, structural=false, recessCap=0, chamfer=false){
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metricSocketCap(mSize, length, structural=structural, recessCap=recessCap, chamfer=chamfer);
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metricShaft(mSize, length, structural=structural);
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}
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module metricCapheadAndBolt(mSize, length=40, structural=false, recessCap=0, recessNut=0, chamfer=false){
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capSize = (mSize * capSizeMSizeMultiplier) + printingKerfMM;
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echo (str("Creating a M",mSize, " size, ", length, "mm long bolt with a ", capSize, "mm wide caphead and bolt ", chamfer?"with":"without", " chamfering."));
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if(recessCap){
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echo (str("It has a ", recessCap, "mm recessed cap"));
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}
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if(recessNut){
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echo (str("It has a ", recessCap, "mm recessed nut"));
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}
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translate([0,0,((length/2)+((mSize*1.25)/2))*-1])
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union(){
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translate([0, 0, 0])
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metricSocketScrew(mSize, length, structural=structural, recessCap=recessCap, chamfer=chamfer);
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metricBoltHex(mSize,structural, recessNut=recessNut, chamfer=chamfer);
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}
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}
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/**/
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translate([0,10,0])
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metricCapheadAndBolt(6, 40);
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translate([20,10,0])
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metricCapheadAndBolt(6, 40, recessNut=1, recessCap=1, chamfer=true);
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/**/
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/*
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translate([0,10,0])
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metricCapheadAndBolt(6, 20, recessNut=10, recessCap=10);
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/*
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translate([0,20,0])
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metricCapheadAndBolt(6, 20, chamfer=true);
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translate([20,0,0])
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metricCapheadAndBolt(10, 40);
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translate([20,20,0])
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metricCapheadAndBolt(10, 40, recessNut=10, recessCap=10);
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translate([20,40,0])
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metricCapheadAndBolt(10, 40, chamfer=true);
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*/ |