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Update threading.scad

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Richard Milewski 2025-12-14 20:00:06 -08:00
parent 7e2610bc0a
commit 3a2c1d791e
1 changed files with 3 additions and 3 deletions
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6
threading.scad
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@ -1857,10 +1857,10 @@ module generic_threaded_rod(
for (turns = [turns1:1:turns2])
let(
tang = turns/starts * 360 + ang,
// EPSILON offset prevents funny looking extensions of the thread from its very tip
// _EPSILON offset prevents funny looking extensions of the thread from its very tip
// by forcing values near the tip to evaluate as less than zero = beyond the tip end
hsc = tang < cut_ang1 ? lead_in_func(-EPSILON+1-(cut_ang1-tang)/lead_in_ang1,PI*2*r1adj*lead_in_ang1/360 )
: tang > cut_ang2 ? lead_in_func(-EPSILON+1-(tang-cut_ang2)/lead_in_ang2,PI*2*r2adj*lead_in_ang2/360 )
hsc = tang < cut_ang1 ? lead_in_func(-_EPSILON+1-(cut_ang1-tang)/lead_in_ang1,PI*2*r1adj*lead_in_ang1/360 )
: tang > cut_ang2 ? lead_in_func(-_EPSILON+1-(tang-cut_ang2)/lead_in_ang2,PI*2*r2adj*lead_in_ang2/360 )
: [1,1],
shift_and_scale = [[hsc.x, 0], [0,hsc.y], [dz+turns,(1-hsc.y)*extreme]]
)