VirtualBox installation and configuration on Macintosh
Download VirtualBox from https://www.virtualbox.org/wiki/Downloads and follow the instructions to install it. At the time of writing, this was the section where the installer files were referenced Run the downloaded installer file and accept all default…
Hollow 3D printed object walls
When you set the Shell Thickness too large, like 2 mm, Cura may generates hollow walls even if the Fill Density is 100%. To make sure the walls are solid, reduce the Shell Thickness to 0.4 mm and set the Fill Density to 100%.
CloudExceptions::CloudException – 400: VPCIdNotSpecified: No default VPC for this user
When you launch a new EC2 instance in the AWS cloud from the command line or with other cloud management platforms, you may get the error message: CloudExceptions::CloudException – 400: VPCIdNotSpecified: No default VPC for this user (RequestID:…
Start a new Spring MVC Java Web application development in NetBeans
When you create your first Spring MVC Java web application in the base installation of NetBeans follow the steps below Create a project In the File menu select New Project… Select the Java Web category, select the Web Application project, and click…
Configure NetBeans for Java Web development
The base installation of NetBeans does not include the web development category. To add the Java web development tools to NetBeans Start the NetBeans IDE, In the Tools menu select Plugins, On the Available Plugins tab select the Java EE Base…
Create the AWS credentials file from a Chef Data Bag
When a process on a server instance needs access to an AWS account, the user who will execute the AWS CLI commands needs to be able to automatically authenticate in AWS. For automatic AWS authentication, the AWS CLI creates two files in the…
Soundproof Enclosure for the Monoprice Select Mini 3D Printer
The Monoprice Select Mini printer is an open design, all noise making parts are exposed, and as the stepper motors move the head and the platform, the vibration transfers to the table it is sitting on. There are a few sound proof enclosure designs on the…
Debugging Chef Test Kitchen runs
If there is a configuration error in the Test Kitchen system, there are commands that can help you to get more information. Run the instance creation in debug mode kitchen create -l debug SUITE_NAME
Ruby Gem Management
Ruby gems are Ruby programs and libraries with a name, version and the platform that can execute them. List the installed gems on your system gem list Detailed list that includes the author, homepage, license, install location and a short description gem…
Bootstrap Chef nodes to connect them to the Chef server
A Chef node is a physical or virtual machine with an operating system that is connected to the Chef server. Once the node has made the connection to the Chef server, the installed Chef Client can execute Chef cookbooks to configure the machine.…