Sunday, August 31, 2014

2014-08-30 (Sa) ESPeri.Impass

Disc magnets are typically magnetized from a flat surface to another flat surface which is called axially magnetized. If you held a typical disc magnet in your upturned hand the north or south pole would be resting on your palm while the other pole would be shooting straight away from your hand. This is merely the de facto but magnets which can be magnetized in any orientation. A diametrically magnetized magnet has its poles perpendicular to the typical orientation. If the same magnet in your hand was diametrically magnetized the north and south pole would be facing horizontally. In fact, if the magnet was strong enough and lying on a slippery surface it would point north like a compass. Not like a compass, it would be a compass.

 Axially magnetized. Typical

Diametrically magnetized

Enough background.
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Parts were purchased for a new design. The core of this design was a tubular magnet, or a hollow cylinder, which was diametrically magnetized. The magnet measured
     OD = 0.250"     6.4mm
     ID  = 0.100"     2.5mm
     L.   = 0.250"     6.4mm


Magnets

Magnet next to brass #2 wood screw

A #2 wood screw was purchased to act as the axel of the spinner. To hold the screw in place a hole punch was used on a label to get a small circle of self argive paper. The small disc of paper was applied to the end of a magnet and the wood screw was slowly passed through by using a screwdriver. A nylon flanged spacer was purchased to be the tube where the spinner rotates. The flanged spacer and spinner were set on a piece of label applied to a desk surface and the spacer was rotated in order to rotate the compass spinner which returned to the same orientation each time. A video was recorded of the compass spinner's behavior.

 Small disc of adhesive label

Stick paper applied to magnet

Screw coming through paper

Nylon spacer to hold compass spinner

Testing the compass spinner

To do: 
  • Create + Build feedback mechanism
  • Test + Evaluate 
  • Redesign 
  • Rebuild 
  • Repeat


Journal Page

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

A list showing of all the final posts of COMPLETED projects.


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.

Saturday, August 30, 2014

2014-08-29 (F) LEGO Virtual Reality Visor COMPLETED

I found one of my experiments on a Spanish website. Cool!

Enough background.
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The CAD files were revised again to clarify an increase color contrast. Each was made into a 45" by 45" pdf then converted to png and cropped. The phone was set up on a tripod and SpaceTerrorVR was launched. 75 screenshots were taken as the phone was rotated about the vertical axis. The images were compiled into an animated gif and scaled to give viewers a 3D animation without software installation. A split screen 3d movie was found on YouTube for the same reason.

 Lego key and count

Eye piece diagram

Base module diagram

Support pieces diagram 

Rotating view of SpaceTerrorVR

A revolving shot was taken of the visor in use by setting up a video camera, lights, and a revolving office chair. The video was uploaded to YouTube and converted to gif by GifYouTube.com. The resulting image was cropped to illuminate unnecessary background and shortened to sooth the transition as it looped. The color was adjusted using an automatic color correction feature. All graphic work was done in GIMP.

Like a record

An Instructable was created with all the current images.



Journal Page


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

A list showing of all the final posts of COMPLETED projects.


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.

Friday, August 29, 2014

2014-08-28 (Th) LEGO Virtual Reality Visor



CAD files were created for each module of the visor. The files illustrate how to assemble each module by using arrows to direct pieces onto the mating pieces. Colors in the drawings were changed to make them appear better on white so the instructions can be printed. Each file was drafted as a pdf and converted to png. An Instructables draft was started. A screenshot of SpaceTerrorVR was taken because SpaceTerrorVR uses a split screen display and accelerometer tracking to change view so it can be used with this visor.


 Key and part's list

Instructions for Eyepiece Module

Instructions for Base Module

Instructions for Support Module

Screenshot of SpaceTerrorVR

To do:
  • Take rotating picture of unit in use
  • Create Instructable

Journal page


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

A list showing of all the final posts of COMPLETED projects.


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.