I recently bought a GoPro and wanted to make a box to store the batteries. To be clear, my model is Hero 4 Silver and is using these (AHDBT-401) batteries. It's easy to find the electrical properties (3.8V DC, 1160mAh, 4.4Wh), not so easy to find the physical size. Here is a quick overview of the key …
Tag: 3d
Box with non vertical sides
While creating a perch for our parrot, I stumbled upon something non trivial : if you want to assemble a box with non vertical sides, what cut angle are you supposed to use to have a nice assembly ? It's obvious that it should be a trapeze, but what would be the α angle ? Easy …
Egg shape and camshaft
Introduction For some tinkering, I wanted to be able to draw a standard, egg-shaped cam and compute the displacement it was generating. I thought this was a trivial problem, but I couldn't find anything, so I'll describe the path I used. As a side note, the end-goal was to generate some 3D animation with persistence …
Using Persistence of Vision on Ubuntu
I've been using Persistence of Vision for almost 20 years. By using, I mean thaat I had times when I was pretty intensive users and most of the time where I didn't touch it for spans of multiple years. I recently decided to install it on my ubuntu, and there are some caveats that I'll …