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Metric Threads - Coarse / Fine / Super-Fine Pitches

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Adrian Schlatter
2019-04-09 21:57:32 +02:00
parent dc05e4475b
commit 873a266abc
5 changed files with 1006 additions and 10 deletions
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11
README.rst
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@@ -27,17 +27,17 @@ inside the ranges allowed by the norms.
Usage Usage
=========================== ===========================
To create a bolt (without head) with 10 turns of G1-inch thread: To create a bolt (without head) with 10 turns of M12 thread:
.. code-block:: OpenSCAD .. code-block:: OpenSCAD
bolt("G1", turns=10); bolt("M12x0.5", turns=10);
A nut: A nut:
.. code-block:: OpenSCAD .. code-block:: OpenSCAD
nut("G1", turns=10, Douter=40); nut("M12x0.5", turns=10, Douter=40);
Note that for a nut you also have to specify an outer diameter. The inner Note that for a nut you also have to specify an outer diameter. The inner
diameter is implicitly given by the thread designator ("G1" in this case). diameter is implicitly given by the thread designator ("G1" in this case).
@@ -69,8 +69,8 @@ List of supported threads
Currently, threadlib knows these threads: Currently, threadlib knows these threads:
- British Standard Pipe Parallel Threadss G1/16 to G6 - British Standard Pipe Parallel Threads G1/16 to G6
- Metric threads (coarse, fine, and super-fine pitches) M0.25 to M600
Extensibility Extensibility
=========================== ===========================
@@ -97,5 +97,6 @@ for addition to threadlib!
Change Log Change Log
=========================== ===========================
- 0.2: Metric threads
- 0.1: Initial release supporting BSP parallel thread - 0.1: Initial release supporting BSP parallel thread

996
THREAD_TABLE.scad
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2
autogenerate.awk
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@@ -2,5 +2,5 @@ BEGIN { FS = "," ; RS = "\n"
print "/* This script is auto-generated - do not edit" print "/* This script is auto-generated - do not edit"
print " :License: 3-clause BSD. See LICENSE. */" print " :License: 3-clause BSD. See LICENSE. */"
printf "\nTHREAD_TABLE = [" } printf "\nTHREAD_TABLE = [" }
/^[GP]/ { print "[\"" $1 "\", [" $2 ", " $3 ", " $4 ", [[" $5 ", " $6 "], [" $7 ", " $8 "], [" $9 ", " $10 "], [" $11 ", " $12 "]]]],"} /^[GPM]/ { print "[\"" $1 "\", [" $2 ", " $3 ", " $4 ", [[" $5 ", " $6 "], [" $7 ", " $8 "], [" $9 ", " $10 "], [" $11 ", " $12 "]]]],"}
END { print "];" } END { print "];" }

7
test.scad
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@@ -10,14 +10,15 @@ use <threadlib/threadlib.scad>
echo ("threadlib version: ", __THREADLIB_VERSION()); echo ("threadlib version: ", __THREADLIB_VERSION());
type = "G1"; type = "M12x0.5";
turns = 5; turns = 5;
Douter = thread_specs(str(type, "-int"))[2] * 1.2; Douter = thread_specs(str(type, "-int"))[2] * 1.2;
echo(thread_specs(str(type, "-ext")));
intersection() { intersection() {
color("Green") color("Green")
translate([-100, 0, -100]) translate([-1000, 0, -1000])
cube(200, 200, 200); cube(2000, 2000, 2000);
union() { union() {
bolt(type, turns); bolt(type, turns);
nut(type, turns, Douter); nut(type, turns, Douter);

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threads.xlsx
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