CPLoftesthinge
by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - CPL/Closed Polygon Lists
Introduced first in SolidGeometry 4.4, Creation date: 2018-11-12, Last change: 2025-09-14
returns a shape and a Geometry for a flexible hinge with 180 degree radius
Description
It is interesting that with the Bambulab X1C very small mechanical hinges are possible using cylindig hinges
For designing test hinges with different Materials, this function creates a coontour and a solid to test those.
For brittle materials with a low mating limit:
Select the radius as small as possible so that the stress path is as small as possible.
2. define the stiffness with the value delta, the thinner the more flexible
3 Do not design continuous hinge surfaces, otherwise further critical torsion stresses will be added, but parallelise in a yarnlike manner.
Example Illustration
Syntax
[CPL,SG]=CPLoftesthinge([rmin,delta,sx,sy,txt,h])
Input Parameter
rmin: | | minimal radius; default is 0.5 |
delta: | | Thickness of circle |
sx: | | size in x ; default is 10 mm |
sy: | | size in y ; default is 5 mm |
txt: | | text; default is rminand delta |
h: | | height of the solid; default is 1 |
Output Parameter
CPL: | | Closed Polygon line |
SG: | | Solid Geoemtry |
Examples
[a,b]=CPLoftesthinge(0.5,3.0,'','',' '); SGfigure; SGplot(b);
Copyright 2018-2025 Tim C. Lueth. All rights reserved. The code is the property of Tim C. Lueth and may not be redistributed or modified without explicit written permission. This software may be used free of charge for academic research and teaching purposes only. Commercial use, redistribution, modification, or reverse engineering is strictly prohibited. Access to source code is restricted and granted only under specific agreements. For licensing inquiries or commercial use, please contact: Tim C. Lueth
Last html export of this page out of FM database by TL: 2025-09-21