2015-05-06 (W) Wind Generator Test Base

A vital part of the testing unit will be a pulley at the bottom of each wind turbine. This pulley will given a band which will drive a pulley attached to a motor. Since the motor pulley is 1:1 with the motor a pulley larger than the motor's pulley will be used. The exact ratio is unimportant since all test fixtures will use identical parts. The pulley module was written with only a few inputs
  • Thickness
  • Radius
  • Hub radius
  • Number of spokes
At the end of the procedure the top half of the pulley was erased so there would be no overhanging parts to ensure a good print. Two halves will need to be printed to make one pulley. Since the pulleys are radially symmetrical aligning them to one another is unnecessary but the axle will keep them concentric.

Developing pulley model

After learning some animation techniques in OpenSCAD a series if pictures were generated which showed the versatility of the pulley module. The pictures were generated by varying the important input variables such as radius, number of spokes, and thickness. After the animations were made a change was made to the module so the spokes were rendered without extending beyond the rim. This module didn't account for printing so unlike the rendered model the pulley is fully intact and if printed would have overhangs.

Versatility of pulley module

Files for Wind Generator Test Base:
The OpenSCAD file below is not necessary unless you want to change something
 To do:
  • Design mounting rack for each test unit
  • Design electrical
  • Design and write program
  • Model pulley
  • Build
  • Test for usability
  • Go to next phase and test turbine designs

The rest of the posts for this project have been arranged by date.

First time here?

Completed projects from year 1.
Completed projects from year 2.

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2015-04-27 (M)