Osso is an expansion cape board for beaglebone black i built and sell. This is how i mount components on the in-house built ready to mount PCB:

First, i spread some fluxant on the to-be-solder side of the PCB and i put soldermasking gum on holes i don’t want to close with tin


then start populating with components (manually)


don’t cut (yet) components pins


it’s time to solder (wave soldering)

 [wpvp_embed type=youtube video_code=yb6knEnSWdw width=560 height=315]

This is the result



Cut the components pins and remove the soldermask gum

IMG_20141208_115846  IMG_20141208_120155IMG_20141208_120209 IMG_20141208_120256

Manually fix shorts and/or bad solders


Clean up from solder flux residues with an ultrasonic bath



… rinse it and and then a second cleanup with a little bit of isopropilic alcool



When ready, let’s dry it with compressed air and an electric oven


mount the remaining components



final test


All is working great, so, add some optional components, put in a pluriball pocket, and we are ready to ship!



That’s all.






XTC-3D: first test
DIY SMD soldering