From 6e4cd07e05038894eb819045abc34244d8e79e7f Mon Sep 17 00:00:00 2001 From: Adrian Mariano Date: Thu, 26 Sep 2024 17:00:02 -0400 Subject: [PATCH] doc fixes --- gears.scad | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/gears.scad b/gears.scad index d436228..4586c65 100644 --- a/gears.scad +++ b/gears.scad @@ -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