This week started with a convention of makers at Minne-Faire where I demonstrated the assistive devices I've built like the distance sensors.
Programming was done for the Wind Generator Test Base. Problems arose earlier when the wrong processor was ordered. The processor was supposed to be one which could emulate a keyboard so data could be input to a spreadsheet as it was observed. Instead the processor could not do that. Instead of replacing the processor the program was modified to output data to the serial port which could be pasted into a spreadsheet without trouble. Data was generated by taking many readings in a much shorter period than would be necessary in long-term data recording. After spinning the rods and recording some manual movements the data was pasted into a spreadsheet and a graph was generated to show the validity. This completed the Wind Generator Test Base.
With the Wind Generator Test Base built the fun part could start. Being able to test different configurations of turbines was the goal. Building the turbines from salvaged material was the ideal but adding small changes to increase efficiency was also desirable. Necessary measurements were taken on a 2-liter bottle using a digital caliper. From the measurements a bottle mount was designed to be cut from a thick plastic sheet.
A complex version with adjustable spacing was considered but a variety of fixed spaced parts was considered more practical. Five sizes were drafted with the middle size being spaced so the edges of adjacent bottles would touch but not overlap. Two sizes were drafted which allow the edges of the bottles to overlap and two more sizes were drafted which puts space between the bottle edges.
All the turbine designs require bottles to be bisected lengthwise. Bisecting marks were made by filling a 1-liter bottle with warm water and pouring it into a 2-liter bottle so it was filled half way. A marker traced the water line which provided a reference line for the cutting.
The rest of the weekly summaries have been arranged by date.
Panoramic shot from Minne-Faire
Serial data on left and program on right
Spreadsheet with graph
With the Wind Generator Test Base built the fun part could start. Being able to test different configurations of turbines was the goal. Building the turbines from salvaged material was the ideal but adding small changes to increase efficiency was also desirable. Necessary measurements were taken on a 2-liter bottle using a digital caliper. From the measurements a bottle mount was designed to be cut from a thick plastic sheet.
Digital caliper measurements
Pen draft of bottle holder
A complex version with adjustable spacing was considered but a variety of fixed spaced parts was considered more practical. Five sizes were drafted with the middle size being spaced so the edges of adjacent bottles would touch but not overlap. Two sizes were drafted which allow the edges of the bottles to overlap and two more sizes were drafted which puts space between the bottle edges.
PDF of bottle holder designs. Print at 100%
All the turbine designs require bottles to be bisected lengthwise. Bisecting marks were made by filling a 1-liter bottle with warm water and pouring it into a 2-liter bottle so it was filled half way. A marker traced the water line which provided a reference line for the cutting.
1-liter of water in a clear bottle and a green 2-liter bottle
Rack used to keep bottle steady
The rest of the weekly summaries have been arranged by date.
Disclaimer for http://24hourengineer.blogspot.com/
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All
information in this blog, or linked by this blog, are not to be taken
as advice or solicitation. Anyone attempting to replicate, in whole or
in part, is responsible for the outcome and procedure. Any loss of
functionality, money, property or similar, is the responsibility of
those involved in the replication.
All
digital communication regarding the email
address 24hourengineer@gmail.com becomes the intellectual property of
Brian McEvoy. Any information contained within these messages may be
distributed or retained at the discretion of Brian McEvoy. Any email
sent to this address, or any email account owned by Brian McEvoy, cannot
be used to claim property or assets.
Comments
to the blog may be utilized or erased at the discretion of the owner.
No one posting may claim claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
Comments
Post a Comment