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doc fixes

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Adrian Mariano 2024-09-26 17:00:02 -04:00
parent fac12237c7
commit 6e4cd07e05
1 changed files with 7 additions and 3 deletions
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10
gears.scad
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@ -437,7 +437,7 @@ function _inherit_gear_thickness(thickness,dflt=10) =
// in fact, the worm can be regarded as a type of helical gear at a very extreme angle, where the teeth wrap
// around the gear. The worm mates with the "worm gear" which is also called the "worm wheel". The worm gear
// resembles a helical gear at a very slight angle.
// Figure(3D,Med,NoAxes,VPT=[38.1941,-7.67869,7.95996],VPR=[56.4,0,25],VPD=361.364): Worm drive assembly, with worm on the left and worm gear (worm wheel) on the right. When the worm turns its screwing action drives the worm gear.
// Figure(3D,Med,NoAxes,VPT=[38.1941,-7.67869,7.95996],VPR=[56.4,0,25],VPD=361.364): Worm drive assembly, with worm on the left and worm gear (worm wheel) on the right. When the worm turns, its screwing action drives the worm gear.
// starts=2;
// ps=0;
// dist_ba=0;
@ -453,6 +453,10 @@ function _inherit_gear_thickness(thickness,dflt=10) =
// teeth=30,
// worm_diam=44,profile_shift=ps,
// worm_starts=starts,backlash=gear_ba);
// color("black"){
// rot($vpr)left(45)back(25)text3d("worm",size=8);
// rot($vpr)right(55)back(27)text3d("worm gear",size=8);
// }
// Continues:
// A close look at the worm gear reveals that it differs significantly from a helical or spur gear.
// This gear is an "enveloping" gear, which is designed to follow the curved profile of the worm,
@ -519,8 +523,8 @@ function _inherit_gear_thickness(thickness,dflt=10) =
// Since self-locking is associated with friction, self-locking drives have lower efficiency,
// usually less than 50%. Worm drive efficiency can exceed 90% if self-locking is not required. One consideration
// with self-locking systems is that if the worm gear moves a large mass and the drive is suddenly shut off, the
// worm wheel is still trying to move due to inertia, which can create large loads that fracture the worm.
// In such cases, the worm cannot be stopped abruptly but must rotate a little further (called "over travel")
// worm gear is still trying to move due to inertia, which can create large loads that fracture the worm.
// In such cases, the worm cannot be stopped abruptly but must be allowed to rotate a little further (called "over travel")
// after switching off the drive.
// Subsection: Bevel Gears
// Bevel gearing is another way of dealing with intersecting gear shafts. For bevel gears, the teeth centers lie on