Monday, March 31, 2014

20140331 (Su) Shotgun Mic Shock Mount COMPLETED

In the past I have done a video cast to highlight some of my projects.  Mostly longboards.  It took a lot of work but video is a fun media.  I don't have high-end video equipment by any stretch of the imagination.  In fact, most of what I have is cobbled together and pretty slapdash.  My lighting consists of shop lights.  My teleprompter is homemade.

My backdrop is a blank section of wall in the living room.  My clapperboards are homemade.  My camera has been an old digital still camera but more recently it's been my cell phone camera.  At least the cell phone can have a microphone hooked up to it which is one of the reasons for building a shock mount.

Enough background.

The ambient noise thought the shotgun mic was partially due to vibrations coming through the mic stand and mounting apparatus.  A shock mount should reduce some of that noise.

The project moved forward after remembering a round file on the work desk and realizing it could be used solely to make the necessary grooves in a piece of PVC.

A piece of 1 1/2“ PVC was cut to 6” with a hack saw.  Eight grooves were cut in the ends for large rubber bands using rounded files.  A ¼-20 hole was tapped in the bottom to accept a standard camera tripod mount.
 1/4-20 hole tapped in the bottom

 Grooves for keeping the rubber bands in place

A large diameter pipe and a shorter length would be advisable if another model was to be constructed.  The middle segment would also be removed to make it easier to access the power switch.

Shock mount from PVC and rubber bands

 Journal page

Sunday, March 30, 2014

20140329 (Sa) ASETNIOP Keyboard

Throughout the day I have all kinds of thoughts.  Work, family, girls, food, entertainment and projects.  Sometimes I'm so inspired to create something that all I can do is sit down and purge my ideas onto paper.  The first time I really remember this happening was when I decided to make a skin boat.

During a normal summer day I was skating by a park, not near water, when I was struck by the idea, maybe compulsion is a better word, to build a skin boat.  The idea for the frame came pouring out of the √¶ther and I wrote it down as fast as my pens could sketch.  Building materials, structural weak points, potential improvements, simplifications and all of the like were all jotted down.  In the end, I filled three notebook pages with dense text and drawings.  After seeing my design on paper it went through a quick revision and I went home.

That happened roughly five years ago and has happened a few times since then.  There's usually no telling when it will happen but you can keep yourself ready for it.

Paper notebooks and Evernote on my phone are the two things I use most for keeping my ideas.  They work for me but if a sketchpad and Sharpie work for you then keep them handy.  If you need to speak then keep a voice recorder on hand.  I doubt you will ever regret writing down an idea.
Chunky legs and Chucks

Enough background.
The switchboards were glued in place in each of the handles.  One switch was soldered in place perpendicular to where it should have been.  It was slowly removed with a soldering iron, rotated and reinstalled along with the connecting wires.  Simple prototyping boards would be a more logical choice for the handles since only the ground wire is common.  The tactile switches would be better replaced with keyboard-like switches.

To do:
• Redrill ring finger switch holes
• Establish communication with I/O Expander
• Follow programming agenda

Saturday, March 29, 2014

20140328 (F) ASETNIOP Keyboard

I don’t know if anyone looks at the journal page I put up each day.  The hard copy journal started in 2011 and it’s just for my sake.  There’s no significant point in posting the image since I type up the whole thing anyway but you can see what my handwriting looks like.
The Y-axis is Handwriting skills and fashion sense
The Y-Axis is Writing skills
The X-axis is Time with a marker at 3rd grade

My "a," "n," and "u" are indistinguishable when I write quickly.  The word anubis barely looks like letters when I write it

So, my handwriting sucks.  I type decently.  Thank goodness for erasable pens.

Enough background.

Page 6-20 of the MCP23008 datasheet were highlighted to show the relevant data registers for communication to and from the I/O Expander.

It is hoped that the TinyWireM will provide the majority of the protocol like START, STOP and ACK.

To do:
• Establish communication with the I/O Expander
Glue switchboards in place
Follow outlined program agenda