Thread: Robin's smt Pick and Place build
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27-11-2010 #12
First idea was to use adapted aquarium pump - didn't work, vaccum was ok but not enough flow. Also vacuum was kinda "pulsed". For small parts OK, but big parts - big problems
So I used old refrigerator compressor and fiddled up two relays to operate as two valves: first to "let vaccum enter nozzle" and other to "devacuum nozzle" (so component can be released fast). Big mess, all together.
If I can suggest you, buy cheapest electromagnetic valve and smallest ejector, and connect this to standard compressor or source of pressurized air. Check FESTO, SMC or other manufacturers of pneumatic components for prices and options.
Pickup nozzle presses on component by it's weight only (10g maybe?); in video you can see, it moves freely up when I change nozzle.
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