DIY SMD Twofer: Manual Pick-and-Place and the Beak

Populating a board with tiny SMT parts can be really tricky, and we’ll take all the help we can get. If you’re in the same boat, [vpapanik] has two devices you should check out.

First up is the manual pick-and-place machine. Wait, what? A manual pick-and-place? It’s essentially an un-driven 2-axis machine with a suction tip and USB inspection microscope on the stage. The picker apparatus is the “standard” needle-plus-aquarium-pump design, and the rails are made from angle aluminum and skateboard bearings.

Yeah, yeah, yeah. It’s not a robot. But sometimes the right jig or tool makes all the difference between a manual procedure being fiddly and being graceful. And we couldn’t help but laugh at the part in the video where he demonstrates the “machine” moving in a circular pattern.

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DIY Video Microscope Used For Soldering SMD Parts

Fortunately (or unfortunately), [ucDude] has had the opportunity to try out a high quality video microscope while soldering some small surface mount components. He loved it, the problem was he had a hard time going back to using just his eyes. He wanted a video microscope but the cost for a professional one could not be justified. The solution? Build one!

[ucDude] called on one of his photographer friends to help. After discussing the project they decided to use a webcam and a lens from an SLR camera. Testing with the webcam resulted in an image that could not be zoomed-in enough, plus having to connect it to an external computer proved to be a bulky solution. They next tried a Raspberry Pi, camera module and zoom monocular. It worked great! The entire assembly was then mounted to a camera boom stand making it easy for the camera to be positioned over the work area and out of the way of hands and soldering irons. The Raspberry Pi’s HDMI output is plugged straight into an HD monitor. The result is exactly what [ucDude] was looking for. Now he can quickly and confidently solder his surface mount circuit boards.

 

SMD Soldering on… Hot Sand?

smd soldering

Need to do some SMD soldering? No tools? No problem! Here’s a creative method that could be a handy tool to add to your belt: SMD soldering using hot sand.

[Oliver Krohn] recently released this little video demonstrating how to perform re-flow soldering using hot sand. He’s using a bunsen burner to heat up a ceramic pot of sand to use as a kind of hot plate. It seems to work pretty well, and it’s a very unique way of doing it — if you wanted to get a bit more technical, you could also throw a temperature probe in the sand to get a much finer heat control!

Of course there are lots of other ways of doing re-flow soldering, like using a re-purposed toaster oven, frying up some circuits on a skillet after you’ve had your bacon, or if you want to be fancy, you could even build your own toolkit for it!

Anyway, stick around for the epic video of SMD soldering on hot sand.

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