Initial commit

LICENSE

@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
+     communicate, and translate a Work;
+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.

README.md

@@ -0,0 +1,5 @@
+# Lampshade
+
+3D Lampshade model for E14 lightbulb sockets (specifically [this
+one](https://www.bauhaus.info/lampenfassungen/euro-zuleitung-mit-lampenfassung-e14-schnurzwischenschalter/p/22427791)) .
+

lampshade.scad

@@ -0,0 +1,104 @@
+
+
+// Thickness.
+th = 1;
+// Bottom thickness.
+bottom = 1;
+// Inner radius.
+mount = 14.5;
+// Outer radius.
+rad = 40;
+// Incline (percent).
+inc = 20;
+// Height.
+height = 90;
+// Curve intensity.
+ci = 3;
+
+$fn = 6;
+
+// Mount.
+difference() {
+    cylinder(h=bottom, r=mount+12);
+    cylinder(h=bottom, r=mount, $fn=32);
+}
+
+// Struts.
+intersection() {
+    for(rot=[0:360/6:359]) {
+        rotate([0, 0, rot]) {
+            translate([mount, -bottom*4, 0])
+                cube([rad-mount, bottom*8, bottom]);
+            translate([mount+8, -bottom/2, 0])
+                cube([rad-mount, bottom, bottom*4]);
+        }
+    }
+    outer_shade();
+}
+
+// Upper end of shade.
+difference() {
+    cylinder(h=bottom, r=rad);
+    cylinder(h=bottom, r=rad-(rad*0.1));
+}
+
+// Shade curve.
+/*curve = [
+    0,
+    -0.25,
+    -0.375,
+    -0.25,
+    0,
+    0.5,
+    0.75,
+    0.875,
+    0.75,
+    0.5,
+    0,
+];*/
+curve = [
+    0,
+    0.5,
+    0.75,
+    0.875,
+    0.9375,
+    0.96875,
+    0.9375,
+    0.875,
+    0.75,
+    0.5,
+    0,
+];
+
+// Shade.
+// Construct from 9 seqments of 1/10 length.
+module outer_shade() {
+    for(i=[0:9]) {
+        z = height/10 * i;
+        r1 = rad + i * ((rad*inc/50*height/100)/10) + (ci*curve[i]);
+        r2 = rad + (i+1) * ((rad*inc/50*height/100)/10) + (ci*curve[i+1]);
+
+        // 10 segments.
+        translate([0, 0, z])
+            cylinder(h=height/10, r1=r1, r2=r2);
+    }
+}
+
+module inner_shade() {
+    for(i=[0:9]) {
+        z = height/10 * i;
+        r1 = rad + i * ((rad*inc/50*height/100)/10) + (ci*curve[i]) - th;
+        r2 = rad + (i+1) * ((rad*inc/50*height/100)/10) + (ci*curve[i+1]) - th;
+
+        // 10 segments.
+        translate([0, 0, z])
+            cylinder(h=height/10, r1=r1, r2=r2);
+    }
+}
+
+// The shade.
+difference() {
+    outer_shade();
+    inner_shade();
+}
+