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Gears fix and improvement

pull/26/merge^2
Arne Durr 2014-12-07 14:59:31 +01:00
parent 2595872036
commit 78b2cac39f
2 changed files with 4 additions and 6 deletions
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3
Hardware/CYCLONE_2/Source_files/libs/gears.scad
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@ -37,9 +37,8 @@ $fa = 5; // Minimum angle for fragments [degrees]
$fs = 0.5; // Minimum fragment size [mm]
/* Herringbone gear module, adapted from MCAD/involute_gears */
module herringbone_gear( teeth=12, circles=0, shaft=5 ) {
module herringbone_gear( teeth=12, height=10, circles=0, shaft=5 ) {
twist=0;//100;
height=10;
pressure_angle=30;
diam = teeth*2;

7
Hardware/CYCLONE_2/Source_files/libs/standard_parts.scad
View File

@ -187,17 +187,16 @@ module stepperMotor(screwHeight=10, renderPart=false, echoPart=false) {
module cyclone_motor_gear(Gear_N_Teeth = 21, gearHeight=10, saveMaterial=false, tolerance=0) {
motor_rod_diam = 5/2+tolerance;
// TODO add support for gearHeight in the gears.scad
// Motor gear
union() difference() {
union() {
//gear
herringbone_gear( teeth=Gear_N_Teeth );
herringbone_gear(teeth=Gear_N_Teeth,height=gearHeight);
translate( [0, 0, 12] ) mirror( [0, 0, 1] ) difference() {
//shaft
cylinder( r=9, h=15);
cylinder( r=9, h=8);
//captive nut and grub holes
translate( [0, 19.5, 3.5] ) rotate( [90, 0, 0] ) union() {
//enterance
@ -231,7 +230,7 @@ nut_radius = METRIC_NUT_AC_WIDTHS[nutSize]/2+tolerance;
difference() {
union() {
//gear
rotate([180,0,0]) herringbone_gear( teeth=Gear_N_Teeth, circles=0, shaft=rod_diam);
rotate([180,0,0]) herringbone_gear(teeth=Gear_N_Teeth, height=gearHeight, circles=0, shaft=rod_diam);
}
if(saveMaterial)