Ender 3 upgrade to v2 silent board 4.2.7 and add BLTouch 3.1

I recently found out about the v2 motherboard upgrade (Motherboard V4.2.7 with TMC2225) for the Ender 3. It is a great idea and not very expensive or hard to do.  The reasons for doing the upgrade are you replace the 8 bit board with a 32 bit board and the new board comes with Silent stepper motor drivers.  They may the printer run silent except for the power supply fan which I added a cover over to quite down some.

Social Media Disinformation

Social Media & Threats, OCTOBER 13, 2020, By Small Business Administration Staff

Social media enables people to communicate, share, and seek information at an accelerated rate. In recent years, social media became the pinnacle of news consumption through its rapid dissemination, low costs, and its accessibility to consumers worldwide.[1] Often breaking and sensitive news is first made available on social media. Whether the information is fact-checked or not, it disseminates around the globe within minutes. Social media provides users the ability to exchange thoughts and ideas with people from corners of the worlds they might not have visited, enables strangers to collaborate and positively impact our collective society, and increase awareness to help grow our businesses and communities. However, social media is a double-edged sword, for all the good we intend to accomplish, social media is also an adversary breeding ground for subverting social media use for their illicit gain.

In this blog, the United States Small Business Administration (SBA) Cybersecurity team members explain common social media risks posed by misinformation campaigns, phishing and scams, malware, and account takeovers. Along with tips to protect businesses, home networks, and individuals.

Linux usage history of CPU Memory and Disk usage using nmon

nmon_cliHow to monitor your Linux servers with nmon

The advantage of the nmon tool over top is it will, using a simple ncurses interface, display the usage for CPU, memory, network, disks, file system, NFS, top processes, resources, and power micro-partition. What's best is that you get to choose what nmon displays. And since it's text-based, you can secure shell into your servers and get a quick glimpse.

Summary - The Anatomy of Peace

Peace Cover

The Anatomy Of Peace will help you make your life and the world more calm by explaining the inefficiencies in our go-to pattern of using conflict to resolve differences and giving specific tips for how to use understanding to settle issues.


Do you remember the last conflict you were part of? Perhaps it was a difficult spouse, struggling teenager, or an annoying neighbor. These days it’s hard for anyone to come out on top in these situations. Usually bringing up an issue just makes people point fingers at you!

But realistically, it takes two people to sustain a fight. Unfortunately for you that means that you are at least a little to blame for the quarrels in your life. But what parts of the disagreement are you responsible for? And better yet, how can you end the conflict peacefully?

Summary - The Go-Giver

The Go-Giver is a fable about an ambitious young man, Joe, who propelled himself to phenomenal success after he learned and applied the “Five Laws of Stratospheric Success” from a famous consultant and several go-givers (who were also extremely successful in their businesses/career).


The Law of Value

CoverYour real worth is defined by how much more value you give than how much you get paid. Before thinking about profits, first ask yourself, does this serve others? A great business delivers unbelievable value; when you you focus on giving value as a way of life, the money will naturally follow.

The Law of Compensation

Your income is decided by the number of people you serve and how well you serve them. The bigger your impact, the more money you’ll actually earn.

Airflow upgrade on GCP Composer

I get the following error when trying to upgrade Composer versions on GCP

UPDATE operation on this environment failed 1 hour ago with the following error message:
Failed to update image version. The Cloud Build image build failed: Build failed; check build logs for details

The logs for this are in the Cloud builder but they have no useful information. Turns out I had to remove the PYPI packages before the upgrade.  For more information see:

This guide in Composer Docs https://cloud.google.com/composer/docs/how-to/managing/updating that gave me some clue about what was going on.

Then I succeeded after doing this:

  1. ensured that these conditions from the link above were met
  2. became Admin, I was editor (that should have permission), but I became Admin to eliminate permissions doubts
  3. removed all PYPI packages from the environment

Git automation with OAuth tokens

You can use OAuth tokens to interact with GitHub via automated scripts.

Step 1: Get an OAuth token

Create a personal access token on your application settings page. For more information, see "Creating a personal access token."


  • You must verify your email address before you can create a personal access token. For more information, see "Verifying your email address."
  • We recommend that you regularly review your authorized integrations. Remove any applications and tokens that haven't been used in a while. For more information, see "Reviewing your authorized integrations."

As a security precaution, GitHub automatically removes personal access tokens that haven't been used in a year.

Summary - Good to Great by Jim Collins

Aniket Ambekar  Summary by Aniket Ambekar Good to Great Book

Good is the enemy of Great’. This is how the author sets off a riveting journey explaining the findings from his and his team’s half a decade of research in the conquest of how to make good companies great. Essentially, ‘Good to Great’ happens very rarely and it is because it is damn difficult. In his research, Jim Collins (the author), has found out systematic phases through which any great company goes through and lays out a framework as shown below:

Good to Great Flywheel

The framework has got three main components:

1. Process: From setting up yourselves towards greatness (aka Build Up) to achieving an inflection point that takes you to greatness (aka Breakthrough)