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Update standard_parts.scad 

Fixed: "TODO (from MCAD): proper screw cap values: instead of "height" will use METRIC_BOLT_CAP_HEIGHTS[size]+tolerance" this is not necessary because the cap height is the bold size so M3 cap is 3mm heigh.
Also fixed some tolerances because they where terrible big. On my print a M3 hole could fit a M4 bold and in the nut holder the nut could almost turn around. 
Removed radius from hole_for_screw and hole_for_nut to clean up the code and it fixed errors in the STL output of OpenSCAD.
pull/23/head
Arne Durr 2014-11-29 17:51:29 +01:00
parent b9f274d469
commit dcf9c3a880
1 changed files with 4 additions and 6 deletions
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10
Hardware/CYCLONE_2/Source_files/libs/standard_parts.scad
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@ -68,8 +68,7 @@ module beveledBase(size=[100,200,10], radius=10, res=15, renderPart=false, echoP
include <MCAD/nuts_and_bolts.scad>
module hole_for_screw(size=3,length=20,nutDepth=5,nutAddedLen=0,captiveLen=0,tolerance=0.4,rot=0,invert=false, echoPart=false) {
radius = METRIC_NUT_AC_WIDTHS[size]/2+tolerance;
module hole_for_screw(size=3,length=20,nutDepth=5,nutAddedLen=0,captiveLen=0,tolerance=0.02,rot=0,invert=false, echoPart=false) {
height = METRIC_NUT_THICKNESS[size]+tolerance;
rotate([0,0,invert ? 180 : 0])
translate([0,invert ? length/2 : -length/2,0]) {
@ -81,7 +80,7 @@ module hole_for_screw(size=3,length=20,nutDepth=5,nutAddedLen=0,captiveLen=0,tol
translate([0,captiveLen,0])
rotate([0,0,rot]) nutHole(size=size, tolerance=tolerance, proj=-1);
}
translate([0,length/2-height+0.01,0]) //TODO (from MCAD): proper screw cap values: instead of "height" will use METRIC_BOLT_CAP_HEIGHTS[size]+tolerance;
translate([0,length/2-size+tolerance,0])
rotate([90,0,0])
render() boltHole(size=size, length=length-2.6+0.5, tolerance=tolerance, proj=-1);
}
@ -118,8 +117,7 @@ module nut(size=8, chamfer=false, renderPart=false, echoPart=false) {
}
module hole_for_nut(size=3,nutAddedLen=0,captiveLen=0,rot=0,tolerance=0.35) {
radius = METRIC_NUT_AC_WIDTHS[size]/2+tolerance;
module hole_for_nut(size=3,nutAddedLen=0,captiveLen=0,rot=0,tolerance=0.035) {
height = METRIC_NUT_THICKNESS[size]+tolerance;
scale([1,(height+nutAddedLen)/height,1])
rotate([90,0,0])
@ -137,7 +135,7 @@ module screw_single(size=3,length=10,tolerance=0, renderPart=false, echoPart=fal
renderStandardPart(renderPart)
difference() {
translate([0,-length/2,0]) {
translate([0,length/2-height+0.01,0]) //TODO (from MCAD): proper screw cap values: instead of "height" will use METRIC_BOLT_CAP_HEIGHTS[size]+tolerance;
translate([0,length/2-size+tolerance,0])
rotate([90,0,0])
boltHole(size=size, length=length-2.6+0.5, tolerance=tolerance, proj=-1);
}