OpenSCAD Hollow Cylinder

hollowCylinder() Allows you to create a hollow cylinder

NOTE! I do not update thingiverse with new versions.

LATEST version can always be found here: https://github.com/Sembiance/common/tree/master/openscad

Usage
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Prototype: hollowCylinder(d, h, wallWidth, $fn)
Arguments:
- d = Diamater of the cylinder. Default: 5
- h = Height of the cylinder. Default: 10
- wallWidth = How wide the walls should be. Default: 1
- $fn = How smooth you want the cylinder