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.
Eurocircuits delivered some perfect panels for the snow flake board. Each panel has five snow flake boards on it. This was an impressive good job from from Eurocircuits. There are a quite number of challenges ... 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
Today prototype boards from Eurocircuits arrived. The quality of this boards is outstanding. I do not know any other board house which delivers this incredible quality of boards. They really thrive for perfection ... Read More
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
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