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Andy's picture

Extrusion Star

Submitted by Andy on Sun, 08/11/2015 - 11:40
Extrusion star

This is another test of using EXTRUSION object, perhaps a much easier test than previously on gears. In one of the Challenges, I was hoping some one can use simple geometry of pentagon to create a 3D star. It turned out EXTRUSION can achieve this quite easily.

Andy's picture

Extrusion helical gears

Submitted by Andy on Wed, 04/11/2015 - 01:18
Extrusion helical gears

I recently just included Extrusion object into VRMath2 Editor and started to experiment its applications in creating 3D objects. It is quite easy to use Extrusion to create Spur Gears, but here I am showing how it can be used to created Helical Gears.

aplesch's picture

general smoothness

Submitted by aplesch on Mon, 02/11/2015 - 08:18
smooth gear

Getting gears to appear smooth by explicitly assigning indices to the generated facets got me thinking in more detail of how to accomplish this result in general, for any facets drawn in face mode by turtle graphics.

aplesch's picture

smoother gears

Submitted by aplesch on Fri, 30/10/2015 - 07:33
smoother tooth

Trying to get a smoother appearance for the curved gear teeth involves lessons both in logo programming and in the underlying 3d display technology.

aplesch's picture

helical gears

Submitted by aplesch on Mon, 26/10/2015 - 04:09
3 helical gears

The real advantage of gear modelling in 3d is that gears in a mesh do not have to parallel each other. It is posible to demonstrate how gears can transfer rotation (and forces) to orientations other than the driving gear. This kind of transfer is possible by use of helical gears.