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This commit is contained in:
Adrian Mariano 2023-08-02 19:46:07 -04:00
parent cbc20f72b1
commit d9476b8674
1 changed files with 13 additions and 13 deletions
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26
gears.scad
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@ -213,19 +213,19 @@ function _inherit_gear_thickness(thickness) =
// You can compute the shortening parameter using {{gear_shorten()}}. Note that the actual shortening distance is obtained // You can compute the shortening parameter using {{gear_shorten()}}. Note that the actual shortening distance is obtained
// by scaling the shortening fator by the gear's module. // by scaling the shortening fator by the gear's module.
// Figure(2D,Big,NoAxes,VPT=[55.8861,-4.31463,8.09832],VPR=[0,0,0],VPD=325.228): With large profile shifts the teeth need to be shortened or they don't have clearance in the valleys of the teeth in the meshing gear. // Figure(2D,Big,NoAxes,VPT=[55.8861,-4.31463,8.09832],VPR=[0,0,0],VPD=325.228): With large profile shifts the teeth need to be shortened or they don't have clearance in the valleys of the teeth in the meshing gear.
teeth1=25; // teeth1=25;
teeth2=19; // teeth2=19;
mod=4; // mod=4;
ps1 = 0.75; // ps1 = 0.75;
ps2 = 0.75; // ps2 = 0.75;
d = gear_dist(mod=mod, teeth1,teeth2,0,ps1,ps2); // d = gear_dist(mod=mod, teeth1,teeth2,0,ps1,ps2);
color("lightblue") // color("lightblue")
spur_gear2d(mod=mod,teeth=teeth1,profile_shift=ps1,gear_spin=-90); // spur_gear2d(mod=mod,teeth=teeth1,profile_shift=ps1,gear_spin=-90);
right(d) // right(d)
spur_gear2d(mod=mod,teeth=teeth2,profile_shift=ps2,gear_spin=-90); // spur_gear2d(mod=mod,teeth=teeth2,profile_shift=ps2,gear_spin=-90);
right(9)stroke([[1.3*d/2,0],[d/2+4,0]], endcap2="arrow2",color="black"); // right(9)stroke([[1.3*d/2,0],[d/2+4,0]], endcap2="arrow2",color="black");
fwd(2)right(d/2+25)color("black"){back(4)text("No clearance",size=6); // fwd(2)right(d/2+25)color("black"){back(4)text("No clearance",size=6);
fwd(4)text("at tooth tip",size=6);} // fwd(4)text("at tooth tip",size=6);}
// Figure(2D,Big,NoAxes,VPT=[55.8861,-4.31463,8.09832],VPR=[0,0,0],VPD=325.228): Applying the correct shortening factor restores the clearance to its set value. // Figure(2D,Big,NoAxes,VPT=[55.8861,-4.31463,8.09832],VPR=[0,0,0],VPD=325.228): Applying the correct shortening factor restores the clearance to its set value.
// teeth1=25; // teeth1=25;
// teeth2=19; // teeth2=19;