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PCF-33P-1 thread

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+++++++++++++++++

Added external PCF-33P-1 thread based on proposal by dholth in #24 but

- changed order of points in profile
- flipped so that load-side of thread is on top
- changed pitch from 6.35 mm to 3.18 mm

Added internal PCF-33P-1 thread to sensibly match external thread
(spec defines only external thread, not internal thread).

Added unit tests checking slopes on load and non-load sides.
This commit is contained in:
Adrian Schlatter 2019-10-10 17:55:45 +02:00
parent 7e30d8e824
commit 97a6e11667
6 changed files with 43 additions and 9 deletions
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1
Makefile
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@ -4,6 +4,7 @@ design: clean
cat design/BSPP_thread.csv | awk -f design/BSPP_thread.awk >> design/THREAD_TABLE.csv
cat design/metric_thread.csv | awk -f design/metric_thread.awk >> design/THREAD_TABLE.csv
cat design/PCO_thread.csv | awk -f design/PCO_thread.awk >> design/THREAD_TABLE.csv
cat design/PCF_thread.csv | awk -f design/PCF_thread.awk >> design/THREAD_TABLE.csv
cat design/THREAD_TABLE.csv | awk -f design/autogenerate.awk > THREAD_TABLE.scad
.PHONY: test

2
THREAD_TABLE.scad
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@ -1045,4 +1045,6 @@ THREAD_TABLE = [["G1/16-ext", [0.907, 3.1631, 6.3625, [[0, -0.4252], [0, 0.4252]
["M600x6-int", [6, -300.6700, 600.6700, [[0, 2.9434], [0, -2.9434], [3.7150, -0.7985], [3.7150, 0.7985]]]],
["PCO-1881-ext", [2.7, 11.52381, 24.2, [[0, -0.987894698], [0, 0.987894698], [2.17619, 0.604173686], [2.17619, -0.195826314]]]],
["PCO-1881-int", [2.7, -14.406, 27.66, [[0, 1.212894698], [0, -0.762894698], [1.656, -0.470897218], [1.656, 0.610159990]]]],
["PCF-33P-1-ext", [3.18, 14.74, 29.49, [[0, -0.76], [0, 0.76], [1.195, 0.549], [1.195, -0.07]]]],
["PCF-33P-1-int", [3.18, -16.2, 32.2, [[0, 0.6], [0, -1.03], [1.3, -0.8], [1.3, -0.15]]]],
];

4
design/PCF_thread.awk Normal file
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@ -0,0 +1,4 @@
/^[^#]/ {
print $0;
}

3
design/PCF_thread.csv Normal file
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@ -0,0 +1,3 @@
# Designator,Pitch,Rrot,Dsupport,r0,z0,r1,z1,r2,z2,r3,z3
PCF-33P-1-ext,3.18,14.74,29.49,0,-0.76,0,0.76,1.195,0.549,1.195,-0.07
PCF-33P-1-int,3.18,-16.2,32.2,0,0.6,0,-1.03,1.3,-0.8,1.3,-0.15
1 # Designator Pitch Rrot Dsupport r0 z0 r1 z1 r2 z2 r3 z3
2 PCF-33P-1-ext 3.18 14.74 29.49 0 -0.76 0 0.76 1.195 0.549 1.195 -0.07
3 PCF-33P-1-int 3.18 -16.2 32.2 0 0.6 0 -1.03 1.3 -0.8 1.3 -0.15

40
tests/test_table.awk
View File

@ -37,6 +37,7 @@ BEGIN {
pi = atan2(0, -1);
deg = pi / 180;
dphi = 0.1;
dx = 0.001;
PASS = 1;
NR_OF_TESTS = 0;
@ -60,6 +61,7 @@ BEGIN {
PASS = 0;
}
NR_OF_TESTS += 2;
NR_OF_THREADS += 1;
}
/"[^,]+-int/ {
@ -75,6 +77,7 @@ BEGIN {
PASS = 0;
}
NR_OF_TESTS += 2;
NR_OF_THREADS += 1;
}
/M[0-9.x-]+-ext/ {
@ -169,15 +172,36 @@ BEGIN {
NR_OF_TESTS += 2;
}
/[^,]+-(int|ext)/ {
# final match-all (designators) rule: test wether all lines have been
# tested
if (tested == 0) {
parse();
print designator " FAIL: not tested";
/PCF.+-ext/ {
# PCF-33P-1 threads have slopes of -80 deg (on the load side) and 60 deg
# (on the other side) + horizontal crest / valley
parse();
m1 = slope(v0, v3) / deg;
m2 = slope(v2, v1) / deg;
if (m1 > 60 + dphi || m1 < 60 - dphi \
|| m2 < -80 - dphi || m2 > -80 + dphi) {
print designator " FAIL: " m1 ", " m2 " deg";
PASS = 0;
};
NR_OF_THREADS += 1;
}
test_horizontal();
tested = 1;
NR_OF_TESTS += 2;
}
/PCF.+-int/ {
# PCF-33P-1 threads have slopes of 80 deg (on the load side) and -60 deg
# (on the other side) + horizontal crest / valley
parse();
m1 = slope(v3, v0) / deg;
m2 = slope(v1, v2) / deg;
if (m1 > -60 + dphi || m1 < -60 - dphi \
|| m2 < 80 - dphi || m2 > 80 + dphi) {
print designator " FAIL: " m1 ", " m2 " deg";
PASS = 0;
}
test_horizontal();
tested = 1;
NR_OF_TESTS += 2;
}
END {

2
threadlib.scad
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@ -9,7 +9,7 @@ Create threads easily.
:License: 3-Clause BSD. See LICENSE.
*/
function __THREADLIB_VERSION() = 0.2;
function __THREADLIB_VERSION() = "0.2-inRev";
use <thread_profile.scad>
include <THREAD_TABLE.scad>