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comment out example

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Adrian Mariano 2023-10-18 21:00:12 -04:00
parent e1876c3432
commit 5639b7897f
1 changed files with 21 additions and 15 deletions
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gears.scad
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@ -510,9 +510,10 @@ function _inherit_gear_thickness(thickness) =
// after switching off the drive // after switching off the drive
// Subsection: Bevel Gears // Subsection: Bevel Gears
// Bevel gearing is another way of dealing with intersecting gear shafts. For bevel gears, the teeth centers lie on // Bevel gearing is another way of dealing with intersecting gear shafts. For bevel gears, the teeth centers lie on
// the surface of an imaginary cone, which is the pitch cone of the bevel gear. Two bevel gears mesh when their pitch cones // the surface of an imaginary cone, which is the pitch cone of the bevel gear. Two bevel gears mesh when their pitch cone
// touch along their length. The teeth of bevel gears narrow as they get closer to the center of the gear. // apexes coincide and the cones touch along their length. The teeth of bevel gears narrow as they get closer to the center of the gear.
// Tooth dimensions and pitch diameter are referenced to the outer end of the teeth. // Tooth dimensions and pitch diameter (the base of the pitch cone) are referenced to the outer end of the teeth.
// Note that the pitch radius, computed the same was as for other gears, gives the radius of the pitch cone's base.
// Bevel gears can be made with straight teeth, analogous to spur gears, and with the // Bevel gears can be made with straight teeth, analogous to spur gears, and with the
// same disadvantage of sudden full contact that is noisy. Spiral teeth are analogous to helical // same disadvantage of sudden full contact that is noisy. Spiral teeth are analogous to helical
// teeth on cylindrical gears: the teeth engage gradually and smoothly, transmitting motion more smoothly // teeth on cylindrical gears: the teeth engage gradually and smoothly, transmitting motion more smoothly
@ -2305,10 +2306,15 @@ module crown_gear(
// every tooth on the other, for more even wear. So relatively prime numbers of teeth are good. // every tooth on the other, for more even wear. So relatively prime numbers of teeth are good.
// . // .
// The gear appears centered on the origin, with one tooth // The gear appears centered on the origin, with one tooth
// centered on the positive Y axis. The pitch base will lie in the XY plane. By default backing will be added to ensure // centered on the positive Y axis. The base of the pitch cone (the "pitchbase") will lie in the XY plane. This is
// that the center of the gear (where there are no teeth) is at least half the face width in thickness. // the natural position: in order to mesh the mating gear must be positioned so their pitch bases are tangent.
// In order to mesh the mating gear must be positioned so their pitch bases are tangent. // The apexes of the pitch cones must coincide.
// The apexes of the pitch cones must coincide. // .
// By default backing will be added to ensure
// that the center of the gear (where there are no teeth) is at least half the face width in thickness.
// You can change this using the `backing`, `thickness` or `bottom` parameters. The backing appears with
// a conical shape, extended the sloped edges of the teeth. You can set `cone_backing=false` if your application
// requires cylindrical backing.
// Arguments: // Arguments:
// teeth = Number of teeth on the gear // teeth = Number of teeth on the gear
// mate_teeth = Number of teeth on the gear that will mate to this gear // mate_teeth = Number of teeth on the gear that will mate to this gear
@ -2332,12 +2338,12 @@ module crown_gear(
// right_handed = If true, the gear returned will have a right-handed teeth. Default: false // right_handed = If true, the gear returned will have a right-handed teeth. Default: false
// slices = Number of vertical layers to divide gear into. Useful for refining gears with `spiral`. Default: 1 // slices = Number of vertical layers to divide gear into. Useful for refining gears with `spiral`. Default: 1
// gear_spin = Rotate gear and children around the gear center, regardless of how gear is anchored. Default: 0 // gear_spin = Rotate gear and children around the gear center, regardless of how gear is anchored. Default: 0
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER` // anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: "pitchbase"
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0` // spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
// orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP` // orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP`
// Extra Anchors: // Extra Anchors:
// "pitchbase" = With the base of the pitch cone in the XY plane, centered at the origin. This is the natural height for the gear, and the default anchor.
// "apex" = At the pitch cone apex for the bevel gear. // "apex" = At the pitch cone apex for the bevel gear.
// "pitchbase" = At the natural height of the pitch radius of the beveled gear.
// "flattop" = At the top of the flat top of the bevel gear. // "flattop" = At the top of the flat top of the bevel gear.
// Example(NoAxes): Bevel Gear with zerol teeth // Example(NoAxes): Bevel Gear with zerol teeth
// bevel_gear( // bevel_gear(
@ -2379,12 +2385,12 @@ module crown_gear(
// bevel_gear(mod=3,15,35,ang,spiral_angle=0,right_handed=true,anchor="apex") // bevel_gear(mod=3,15,35,ang,spiral_angle=0,right_handed=true,anchor="apex")
// cyl(h=65,d=3,$fn=16,anchor=BOT); // cyl(h=65,d=3,$fn=16,anchor=BOT);
// Example(VPT=[6.39483,26.2195,8.93229],VPD=192.044,VPR=[76.7,0,63.3],NoAxes): At this extreme 135 degree angle the yellow gear has internal teeth. This is a rare configuration. // Example(VPT=[6.39483,26.2195,8.93229],VPD=192.044,VPR=[76.7,0,63.3],NoAxes): At this extreme 135 degree angle the yellow gear has internal teeth. This is a rare configuration.
ang=135; // ang=135;
bevel_gear(mod=3,35,15,ang); // bevel_gear(mod=3,35,15,ang);
color("lightblue") // color("lightblue")
back(pitch_radius(mod=3,teeth=35)+pitch_radius(mod=3,teeth=15)) // back(pitch_radius(mod=3,teeth=35)+pitch_radius(mod=3,teeth=15))
xrot(ang,cp=[0,-pitch_radius(mod=3,teeth=15),0]) // xrot(ang,cp=[0,-pitch_radius(mod=3,teeth=15),0])
bevel_gear(mod=3,15,35,ang,right_handed=true); // bevel_gear(mod=3,15,35,ang,right_handed=true);
function bevel_gear( function bevel_gear(
teeth, teeth,
mate_teeth, mate_teeth,