Today I show you a little bit longer video about the assembly of the component side of the snowflake panel.
Compared with the very small 0402 LEDs (1mm x 0.5mm) on the front side, the component side contains just regular 0805 resistors and capacitors.
The first part of the video shows how I apply the solder paste using a metal stencil. I use a system called “eC-stencil-fix” from Eurocircuits. This is basically a set of plates with metal knobs to perfectly align the board with the stencil. With a tick in a checkbox, they produce panels which perfectly work using this stencil fix system, which is really convenient.
Next is the assembly itself: 105 resistors, 10 capacitors, 5 headers and 5 chips. The hot air soldering shown in the next part is sped up considerably, I used lower temperature but more airflow as for the LED side.
At the very end of the video, you can see how I test all LEDs of a single snowflake.
If you own an original snowflake kit or produced boards from the sources, you have to wire them by yourself. The pre-assembled kit from Pimoroni comes with some nice flex-cables, but you may want to ... Read More
In this article, I will discuss how to write custom patterns for your snowflake decoration. This is a rather advanced topic, and there are a number of prerequisites that are required and listed below. Nevertheless, ... Read More
Here a quick video of the snowflake assembly. It shows the assembly of the LED side of the panel using hot air. The assembly went without big problems, except there was a little bit excess ... Read More
From the beginning of the snowflake project, I tried to create photos or videos which capture the actual beauty of the decoration. Here are the two more recent videos I created: Differences to the Real ... Read More
We have some great news about my Snowflake Decoration: Starting today, you can buy an assembled version of the project from Pimoroni that can be shipped worldwide. Pimoroni did an excellent job on this project ... Read More
I designed a very simple power converter for the snow flake decoration. The snow flake boards require 3.3V, a voltage which is not commonly available in a household. Therefore the power converter takes 5V USB ... Read More