Em 19/04/2013 03:51, KPL escreveu: > On Thu, Apr 18, 2013 at 2:45 AM, Jesse Lackey = wrote: >> Hi Josh, my 2c... >> >> 1) use a syringe with a fine tip and dab a little solder on each pcb pad >> that way, instead of a stencil. > I'll try to ask my question here, while solder paste is on topic. > > I have no real experience with solder paste, but I'm planning to start > using more. > I've got hands on some old (around 1990) medical equipment that > contains x-y-z mechanics, pumps, mechanically steered syringes and > what not. One of possible uses came to mind - probably this can be > built to dispense solder paste, using existing syringes and needles, > just putting a tiny drops of paste on pads. > Pastes I have seen were quite thick, are there more liquid ones > existing, that could be applied without huge force? > Would this even work at all, putting just a small drop of paste, > instead of covering whole pad? Existing hardware should be capable of > putting really small quantities. > Needles are small, and plastic tubing has internal dia of about 1mm. > > I'm not talking about industrial use. If you succeed in retrofitting that machine to dispense solder paste you are halfway there to turn it into a pick and place machine. Isaac --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .