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Using an electric hotplate for reflow also works very well for prototypes. You just watch the board and judge the reflow point by eye.

https://www.sparkfun.com/tutorials/59

Cheap PET stencils are available from OSH Stencils and SMT Stencil. For small boards, it's not difficult to dispense solder paste by hand with a syringe. The application doesn't need to be precise if you're using a board with a solder mask - surface tension does the hard work for you.

https://www.oshstencils.com/pricing.php http://www.smtstencil.co.uk/




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