Documented test tube cap

[physical.git] / cases / test tube cap / index.org

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+#+TITLE: Test tube cap
+#+AUTHOR: Svjatoslav Agejenko
+#+LANGUAGE: en
+
+* (document settings) :noexport:
+** use dark style for TWBS-HTML exporter
+#+HTML_HEAD: <link href="https://bootswatch.com/3/darkly/bootstrap.min.css" rel="stylesheet">
+#+HTML_HEAD: <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
+#+HTML_HEAD: <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script>
+#+HTML_HEAD: <style type="text/css">
+#+HTML_HEAD:   footer {background-color: #111 !important;}
+#+HTML_HEAD:   pre {background-color: #111; color: #ccc;}
+#+HTML_HEAD: </style>
+
+* General
++ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
+  COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
+  DESIGNS AT YOUR OWN RISK.
+
++ This design is released under Creative Commons Zero (CC0) license.
+
++ Author:
+  - Svjatoslav Agejenko
+  - Homepage: https://svjatoslav.eu
+  - Email: [[mailto://svjatoslav@svjatoslav.eu][svjatoslav@svjatoslav.eu]]
+
++ See also:
+  - [[../../index.html][Other physical projects in this repository]]
+  - [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
+
+* Project description
+[[file:make.png]]
+
+Apparently it is possible to have comparatively tight and well fitting
+test tube cap even from hard (PLA) materials.
+
+[[file:schematic.png]]
+
+Idea is to have outer/entrance radius slightly larger than test tube
+and inner radius slightly smaller. Internal cap radius keeps gradually
+decreasing. This provides tight fit.
+
+
+- Download:
+  - [[file:cap.stl][Printable STL file]]
+  - [[file:cap.FCStd][Editable FreeCAD file]]