Circuit Board Heat Gun

Hot air soldering is customarily used with surface mount devices being attached to printed circuit boards.

Circuit board heat gun.

Circuit board pre heat workstations are very expensive 350 00 2500 00. Using a heatgun to remove scavange parts from old or broken pcb. I using a old harddrive as a example. Low cost circuit board pre heat workstation for solder re work.

The goal of this instructable is to demonstrate how to make a circuit board pre heat workstation for around 50 00 with no special tools and the majority of materials from. And because hot air guns aren t as accurate as rework stations your resulting work area can wind up being pretty messy. A common heat gun is an inexpensive way to reflow or reattach electronic components that have been soldered together. The heat gun was under 10 and it is really usefull to have around.

The top photo shows a board that has been populated and reflow soldered in an oven and the bottom photo shows the bare board. My circuit board has about 250 components including 0402 passives and a couple of 0 5mm pitch tqfps and it s a bit of a pain to assemble it using a soldering iron. The heat gun was under 10 and it is really usefull to have around. Here s what i was thinking might work.

You can salvage most any surfacemount bga or even through hole parts using this method. Apply leaded solder paste via a stencil onto the pcb. Homidic 6 56ft long heat gun mini handheld hot air gun electric 300w portable heat gun for diy craft embossing shrink wrapping pvc drying paint clay rubber stamp by homidic 13 99 13. I m curious how well a hot air gun would work for reflowing an entire board.

The following descriptions use that method and focus on a small section of a printed circuit board as shown below.