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Added proper screw cap values

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Fixed the TODO: proper screw cap values
Based on: http://www.roymech.co.uk/Useful_Tables/Screws/cap_screws.htm
Diameter is pulled from the table METRIC_BOLT_CAP_DIAMETERS and the cap height is the metric size of the bold.
This commit is contained in:
Arne Durr 2014-11-29 19:57:02 +01:00
parent 85794e4b4f
commit b957e8dec0
1 changed files with 44 additions and 3 deletions
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47
nuts_and_bolts.scad
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@ -137,6 +137,48 @@ COURSE_METRIC_BOLT_MAJOR_THREAD_DIAMETERS =
35.940//m36 35.940//m36
]; ];
//Based on: http://www.roymech.co.uk/Useful_Tables/Screws/cap_screws.htm
METRIC_BOLT_CAP_DIAMETERS =
[
-1, //0 index is not used but reduces computation
-1,
-1,
5.50,//m3
7.00,//m4
8.50,//m5
10.00,//m6
-1,
13.00,//m8
-1,
16.00,//m10
-1,
18.00,//m12
-1,
-1,
-1,
24.00,//m16
-1,
-1,
-1,
30.00//m20
-1,
-1,
-1,
36.00,//m24
-1,
-1,
-1,
-1,
-1,
45.00,//m30
-1,
-1,
-1,
-1,
-1,
54.00//m36
];
module nutHole(size, units=MM, tolerance = +0.0001, proj = -1) module nutHole(size, units=MM, tolerance = +0.0001, proj = -1)
{ {
//takes a metric screw/nut size and looksup nut dimensions //takes a metric screw/nut size and looksup nut dimensions
@ -160,9 +202,8 @@ module nutHole(size, units=MM, tolerance = +0.0001, proj = -1)
module boltHole(size, units=MM, length, tolerance = +0.0001, proj = -1) module boltHole(size, units=MM, length, tolerance = +0.0001, proj = -1)
{ {
radius = COURSE_METRIC_BOLT_MAJOR_THREAD_DIAMETERS[size]/2+tolerance; radius = COURSE_METRIC_BOLT_MAJOR_THREAD_DIAMETERS[size]/2+tolerance;
//TODO: proper screw cap values capHeight = size+tolerance;
capHeight = METRIC_NUT_THICKNESS[size]+tolerance; //METRIC_BOLT_CAP_HEIGHTS[size]+tolerance; capRadius = METRIC_BOLT_CAP_DIAMETERS[size]/2+tolerance;
capRadius = METRIC_NUT_AC_WIDTHS[size]/2+tolerance; //METRIC_BOLT_CAP_RADIUS[size]+tolerance;
if (proj == -1) if (proj == -1)
{ {