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updated metric bolts code to fix a tension issue, also the nut needs to be ON the thread, not off the end... oops

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Greyscale 2021-09-09 09:27:59 +00:00
parent 2d3d215368
commit e797a980e9
1 changed files with 21 additions and 12 deletions
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33
metric_bolts.scad
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@ -1,35 +1,42 @@
module metricBoltHex(mSize, structural=false, recessNut=0, chamfer=false){
hexDiameter = mSize * (structural?2.0:1.8);
// Hex diameter = mSize * 1.8, (or 2.0 if structural
// We add 1% to make the hex slip in better
hexDiameter = mSize * (structural?2.0:1.8) * 1.01;
translate([0,0,(mSize*0.7)/2])
cylinder(d=hexDiameter,h=mSize * 0.7, $fn=6, center=true);
if(recessNut > 0){
#translate([0,0,(recessNut/2)*-1])
translate([0,0,(recessNut/2)*-1])
cylinder(d=mSize * (structural?2.0:1.8),h=recessNut, $fn=6, center=true);
}
if(chamfer){
chamferHeight = mSize*1.5*0.595;
translate([0,0,(mSize * 0.7)+(chamferHeight/2)])
#cylinder(d1=hexDiameter,d2=0,h=chamferHeight, center=true, $fn=6);
cylinder(d1=hexDiameter,d2=0,h=chamferHeight, center=true, $fn=6);
}
}
module metricSocketCap(mSize, length, structural=false,recessCap=0, chamfer=false){
//cap size = M number * 1.5.
// We add 1% to make the cap head spin nicely in the hole.
capSize = mSize * 1.5 * 1.01;
translate([0,0,(length + ((mSize*1.25)/2))])
cylinder(d=mSize*1.5,h=mSize*1.25, center=true, $fn=360);
cylinder(d=capSize,h=mSize*1.25, center=true, $fn=360);
if(recessCap > 0){
translate([0,0,(length + ((recessCap/2)+(mSize*1.25)))])
#cylinder(d=mSize*1.5,h=recessCap, center=true, $fn=360);
cylinder(d=mSize*1.5,h=recessCap, center=true, $fn=360);
}
if(chamfer){
translate([0,0,(length-((mSize*1.5*0.595)/2))])
#cylinder(d2=mSize*1.5,d1=0,h=mSize*1.5*0.595, center=true, $fn=360);
cylinder(d2=mSize*1.5,d1=0,h=mSize*1.5*0.595, center=true, $fn=360);
}
}
module metricShaft(mSize, length, structural=false){
translate([0,0,(length/2)])
cylinder(d=mSize, h=length, center=true, $fn=360);
cylinder(d=mSize, h=length+0.01, center=true, $fn=360);
}
module metricSocketScrew(mSize, length, structural=false, recessCap=0, chamfer=false){
@ -45,18 +52,20 @@ module metricCapheadAndBolt(mSize, length=40, structural=false, recessCap=0, rec
if(recessNut){
echo (str("It has a ", recessCap, "mm recessed nut"));
}
translate([0, 0, mSize * 0.7])
translate([0, 0, 0])
metricSocketScrew(mSize, length, structural=structural, recessCap=recessCap, chamfer=chamfer);
metricBoltHex(mSize,structural, recessNut=recessNut, chamfer=chamfer);
}
/*
translate([0,0,0])
metricCapheadAndBolt(6, 20);
translate([0,0,0])
metricCapheadAndBolt(8, 40);
translate([10,0,0])
cylinder(h=40,d=1);
/*
translate([0,10,0])
metricCapheadAndBolt(6, 20, recessNut=10, recessCap=10);
/*
translate([0,20,0])
metricCapheadAndBolt(6, 20, chamfer=true);