Hand placement works surprisingly well. Surface tension works to your advantage, centering the parts on their pads.
He’s been looking at ways of speeding up hand placement, especially for very small pitch parts. And found a great way:
It’s two acrylic sheets, sandwiched together. The lower is a frame for the PCB. The upper is a guide for the component placement. With the board pressed into the lower frame, the upper layer exactly places the larger components. Actually placing the parts is now laughably easy. The slots are precisely cut for each one, so it’s not even necessary to use a microscope. It’s possible to place 5 parts in a few seconds – not bad for a human!
After placement the PCB pops out of the frame leaving the parts firmly stuck in place in the paste. While this setup has been working really well for large parts, small components haven’t worked out — they tend to get lost in the holes in the acrylic.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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