Technology

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

3d involute gears

Submitted by aplesch on Wed, 21/10/2015 - 07:30
3d gears

As an update to the 2d involute (curved teeth) gears, I modified the program to produce 3d (extruded) gears. This required a change in drawing tactics.

Andy's picture

Spur gears

Submitted by Andy on Tue, 20/10/2015 - 21:51
Spur gear set

Finally, not perfect at all but working gear set in 3D. Thanks to asplech's blog about involute gear and this Spur Gear document, I finally get to know better about these cogged wheels.

aplesch's picture

involute gear

Submitted by aplesch on Fri, 16/10/2015 - 22:49
two gears

It turned out that producing a set of involute gears requires quite a bit of geometry in addition to involutes.

Andy's picture

Gear 2D Prototype

Submitted by Andy on Mon, 12/10/2015 - 12:00
gear2d prototype

Following the circle involute blog, I thought about creating a gear procedure for easy creation of different gears. The method used is quite differnt to the involute idea but the turtle geometry way of thinking and doing the gears. This prototype procedure utilised a simple regular poygon formula (repeat :sides [ fd 1 rt 360/:sides ]) and some built-in commands such as TOWARD and SETHEADING to rotate the turtle and get the directions needed.

aplesch's picture

circle involute

Submitted by aplesch on Fri, 09/10/2015 - 06:50

As part of a project to make a nice gear mesh with logo, I wondered how to generate the involute of a circle.

Andy's picture

Mathematics, Programming and STEM

Submitted by Andy on Sun, 28/06/2015 - 23:25
MERGA38 Presentation

This is my first attemp to create a 3D virtual world for a conference presentation. This presentation is for my paper titled "Mathematics, Programming and STEM" published in MERGA 38 conference proceedings.

Andy's picture

Bouncing spring

Submitted by Andy on Tue, 16/06/2015 - 14:06
Bouncing Spring

Bouncing is fun. A spring has potential (elastic?) energy that has many uses in our life. Can you think of any uses? I just had a front suspesion replace in my old car. There are two big springs (or perhaps 4, I did not check back wheels) on top of the two front wheels. The two springs make sitting in the car comfortable by obsorbing forces and only bouncing slightly when driving (on rocky road).

Andy's picture

Analog clock

Submitted by Andy on Fri, 07/11/2014 - 00:19
Analog clock

The TIMESENSOR of X3D is quite a complicated time mechanism to understand. As I have created some commands for easy animation, I thought that it would be interesting to test the TIMESENSOR with an analog clock.

Andy's picture

Coffee Table

Submitted by Andy on Thu, 11/09/2014 - 17:39
Coffee table

It has been a while, a long while that I do not have time blogging. It feels good when I put down work and write a blog. In fact, it did not take long to do this coffee table at all.