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The Gahooa Perspective

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FreeCAD Font Size

Running a high dpi monitor and squinting to see FreeCAD GUI? Here is the fix I found. Tested on FreeCAD-0.21 on Ubuntu 22.04 Create this path and file: Fill it with this:

authentication with amazon ecr and docker

Applies to linux systems. ~/.docker/config.json must have Also, you must have the docker-credential-ecr-login package installed. For READ ONLY access to an ecr repo in the same account, here is the IAM policy: Note there are two statements. The first one is REQUIRED. docker-credential-ecr-login can be a bit obtuse. On ubuntu 22.04, on ec2, running the [ ]

See the real details of a git commit

The command to see the details of a git commit, specifically the tree attached to it, is: git cat-file -p HEAD It produces an output like this:

PostgreSQL – describe constraints with schema and table

Here is a query which will look at the pg_catalog views to extract a list of constraints along with their respective schema, table, name, and definition.

Ubuntu 22.04 having trouble with desktop icons?

In a previous post I showed how to fix Ubuntu 20.04 icons. Now with 22.04 it is a bit different. What would normally work does not work now because Firefox is running as a snap package and cannot manage Gnome extensions. It s easier this time. Install the Gnome Shell Extension Manager (https://github.com/mjakeman/extension-manager/tree/master/src) like this: $ [ ]

Ubuntu 20.04 having trouble with desktop icons? Desktop icons doubled when using Neo?

I was having an issue on Ubuntu 20.04 where anytime I would save a file to the desktop, the desktop would freeze for a few seconds, and all icons would disappear or reappear. This happened when dragging items to the Trash as well. The journey to get the answer was not very direct, but in [ ]

Dell XPS 17 9700 + Ubuntu 20.04 Audio Issues? Fixed!

Written on June 19, 2021 I recently took the plunge and got a very nice Dell XPS 17 9700 with the intention to dual boot Windows 10 and Ubuntu 20.04. This all worked quite well except audio. There are numerous posts about this which can be found by googling this issue. I tried many [ ]

Creo 7: From Design to 3D Print

The Desk Toy design project was delivered from our catalystservice.org order. We used McMaster Caar ordered reamers to get a good fit on the pins. For a 0.250 pin, to get a sliding, we reamed it to 0.253, but that was still a bit tight. For press fit, we reamed to 0.250. The spring was [ ]

Desk Toy Ready To Go

PP0001 is our first Creo 7 based 3D assembly which is going to be built as a physical prototype. It s been a great exercise in learning Creo, and just simple mechanical engineering. We will have the parts 3D printed via Catalyst Services out of ABS and Nylon. Several reamers have been ordered from McMaster Carr [ ]

Creo 7: All from a sketch

One of the harder things in designing machines is figuring out how all of the parts interface with each other precisely. In Creo 7 Parametric, the ability exists to draw a series of master sketches which describe how parts interface, then extrude new bodies from these sketches, then create new parts from the bodies, and [ ]