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    Hand Written Encryption..
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    My First Blog
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    My First Blog
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    My First Blog
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I remember the days of the 5-1/4” floppy disk. I also remember the TRs-80 from Radio shack, the progression to the 1.4Meg, 3-1/2” disks, GWBasic, Fortran,Pascal, my first computer the 386SX (whoa).
I remember the good ole DOS days, the kool graphics you could produce with “Ansi.sys”,the config.sys, auto exec.bat and how you can tweak your machine to go to “High Mem”, breaking the 640K barrier.

   I also remember when windows 3.1 hit the market and how many times i installed it and removed it because its was such a resource hog.

   Those were the days of the “BBS” or bulletin boards.. namely “Wildcat”. The world was your oyster. If enough BBS systems were tied together you can reach across the state line to chat to an old friend. Then almost overnight, the usher in  of “AOL”, the netscape browser, sprynet, and the internet .

    Times have certainly changed. Those were simpler times. Now your Data is highly valued to everybody. Every search engine, every social media, everywhere you shop. Privacy is difficult to maintain.

     It baffles my mind how the younger generation divulge their personnel information so willingly, giving little regard to what they give away and who knows it.

     Maybe its a generational thing but I’ve always been mindful of “Big Brother” and what information can be collected on me, my finances and my family.

      It is also why i’ve had an interest in handwriting encryption. Its been around forever. its been said that Leonardo da Vinci often wrote encrypted to keep prying eyes from watching his progress.

      There is a certain comfort in being able to write a quick note to yourself such as a password or a combination and know that there is a certain element of protection from others.

       Through the years I’ve taken notice of different systems that have been around for some time. I’ve desired a system thats wasn’t difficult to learn and that could be written pretty fast wether in handwriting or via a PC. The two systems that stand out for me the most are the “Elian Script” and “PigPen”. They both have similarities in that it could be reproduced quickly in a “tic-tac-toe” fashion to refresh your memory, but because the script is more a sketch than a character it wouldn’t be beneficial when typing a note on the PC.

      So I decided to design my own system being loosely based on these two systems.


   The similarity to them is the pattern. You would just draw the “tic-tac-toe” pattern and start at the bottom left with the alphabet. As you finish the top right square you would start over on the bottom left.


       c | f | i
______________       [First set of 9 letters]
       b | e | h
______________
       a | d | g


       cl | fo | ir
______________       [add next set of 9 letters]
       bk | en | hq
______________ 
       aj | dm | gp


       clu | fox   | ir
______________       [Add the last 8 letters]
       bkt | enw | hqz
______________ 
       ajs | dmv | gpy


====================================
The positions in the squares are noted by a different set of letters that indicate which box you’re refering to..

like this..


       g | U |P
______________ 
       j | X |C
______________ 
       d | n |b

the letter “g” has a circular opening in the top left therefore its position is “top left” of the pattern. Similarly, the letter “d“ is circular on the bottom left.
The same can be said for “P” and “b”.
The small “j” is used like a bracket “]” to denote opening in the middle left and “C” the middle right.
“U” and “n” reflect the top and bottom openings.
“X” will denote center letters.

Since there are 3 positions in the “tic-tac-toe” patterns to represent all the alphabets, you’ll need to identify which set you’re looking for in those boxes.

so we’ll use a dot notation. the period “.” will be set 1.
The semicolon “;” will be set 2 and the colon “:” will be set 3 ..

so set 1 would look like this:
 
                 [U]
            .      .      .
[g]        c   | f |    i          [P]
     ————————————-
                  [X]
[j]         b   | e |   h         [C]
     ————————————-

[d]         a   | d |   g         [b]
      ———————————-
         
                    [n]

To spell “bag” it would look like this “j.d.b.” Remember the letters reflect position and the dot notion reflect which column in the set we’re referring to.

the second set would be:


                     [U]
             ;         ;         ;

[g]         L      |O|      R      [P]
     ————————————-
                      [X]
[j]          K      |N|      Q      [C]
     ————————————-

[d]          J      |M|      P       [b]
      ———————————-

                       [n]


“Roll” would be spelled like this “P;u;g;g;”

the third set would be:

                       [U]
             :          :          :

[g]         U       | X |             [P]
     ————————————-
                        [X]
[j]          T       | W |      Z     [C]
     ————————————-

[d]          S      |  V  |     Y      [b]
      ———————————-

                         [n]

As you see there is never a p colon “:” position since we’re out of letters..

Now lets put them all together:


                          |U|
             .  ; :      . ;  :      . ; :
|g|         c l u    | f o x |    i r      |P|
     ————————————————
                           |X|
|j|          b k t   | e n w |   h q z  |C|
     —————————————

|d|         a j s    | d m v |   g p y  |b|
                            |n|


See it? Its a column-row like configuration. The letters are the box positions and the dot-notation is which character in that box.


you’ll only use the far right 9 letters shown below when writing notes. The dot notation will tell you what letter you’re dealing with in those boxes.

  . ; :
  a,j,s    =       d
  b,k,t    =       j
  c,l,u    =       q
  d,m,v   =      n
  e,n,w    =      x
  f,o,x     =       u
  g,p,y    =       b
  h,q,z    =       c
  i,r        =       p

“Billy” would be “j.p.q;q;b:”




Ready for some practice? I wrote a quick cypher script to help in your training young jedi..

copy the message below and paste it to " Here "  then press the “Decrypt” button.

P;x.n;x.n;j.x.p; j:u; n.p;p.x;j; b:u;g:p;
U;n:d.g;j:p.x;x.!


Thanx for visiting..
   
I just love the rain. Rain knocks the pollen out of the air, it waters your plants and it allows you some quality time in the garage to design and experiment with some concepts.
Well thats what I did this weekend.. The Challange this time? Spend some time re-calibrating my printer.

I have the original "Rostock Max v1" and I have been using it for years. Its hard to say how much filament I've ran through this printer but like any other piece of equipment it has finally started to show its age. Everything is still the original equipment.. original thermal resistor, heat sensor, belts.. everything.

I've decided to buy a brand new 0.5mm tip from SeeMeCNC to see if this one item can bring my machine back to its original condition.. Which it did! My compliments to this company for such a well designed machine.

So of coures with a new tip I knew I needed to perform another calibration. While the tip was heating up I was studying the mount that holds the head and thought maybe, just maybe I could design an attachment that i could attach to this mount to suspend a set of digital calipers. If successful, it would ease the calibration task.

After 2 failed attemps I finally came up with a designed that worked well. It could even be permanently mounted on the existing bolts without removing the hotend..And one wire tie would be all that is required to secure the calipers to the mount which could be easily removed while printing..


 

By snapping a rubber band across the bottom and stretching it across the jaw of the calipers the force would keep contact to the bed no matter where you drop the head.

When I first ran the scripts to calibrate the head, the jaws intersected with the extruder ever so slightly. Not enough to cause any damage but casting doubts on wether this concept was gonna work...

But then, really, there was no reason to come down diagonal before contacting the bed.. I can come straight down, raise up just enuff to keep the calipers off the bed and drop it at the points i needed..

so I rewrote the script..


G28   ;Home Axis 
 G0 Z0 F3500    ;Go straight down
 G4 S3     ;pause 3 secs
 G0 Z100     ;Go up to Z100
 G0 X0 Y90 F3500   ;Go to back post
 G0 Z0   ;Go Down
 G4 S3  ;wait 3 secs
 G0 Z100   ;Go up 100
 G0 X77.94 Y-45 F3500    ;go to right post
 G0 Z0   ;Go Down
 G4 S3  ;wait 3 secs
 G0 Z100   ;go up 100
 G0 X-77.94 Y-45 F3500  ;go to left post
 G0 Z0    ;Go Down
 G4 S3    ;wait 3 secs
 G0 Z100   ;G0 up 100
 G0 X0 Y0    ;center head
 G0 Z0 F3500  ;touch middle again
   ;Stay here till you adjust your Limits
  ; Now do it again

Using this technique i was able to get all points within 0.02mm from the center.
Here's the video..




If you have need of or would like to print it here's the STL

On Monday, August 21st, the Eclipse passed over Chattanooga at about 1:30pm with a 70 mile track. Even though I had order my glasses 2 months in advance, I instead recieved a letter from Amazon on the very week of this event stating that the money would be refunded to my account. It turns out that those glasses were not compliant with the ISO 12312-2 standard.

A day before the event a person at my church informed me that glasses had become available at a local shop and were selling them at cost to generate notoriety of their shop. I was back in business!!

I personally viewed the Eclipse from my job site since I was working at the time. But my wife had been viewing it from our front yard while conversing with our neighbors. By holding the glasses up against their Cannon Camera they was able to capture these incredable shots.

I had heard that it would get so dark that the crickets would start chirping but I had doubts that it would get that dark. 
The whole event took place in a 3 minute span and was indeed that dark. 

So incase you missed it.. 

Image1  Image1  Image1  Image1  Image1  Image1

Image1  Image1  Image1  Image1  Image1

My First Blog
[07-04-17 ]
Whew.. Frickin Whew..
Well...That took a couple of hours to post.tongue-out
There is always something unforseen when you script it to localhost and expect it to just run smooth as silk when your ready to drop it in.

Well at least its started...>