This SMD Reflow Hot Air Gun Hangs Around Your Workbench

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Has reflowing surface mount components got you down? [Giorgos] is currently working on a project that will lift your spirits…. well at least your hot air gun. Tired of manually holding his heat gun in one hand and IR thermometer in the other, [Giorgos] set out to create a device to alleviate just that. Although not completed yet, it appears the machine’s intent is to hold the heat gun at an appropriate height above the work piece in order to achieve the correct reflow temperature. He doesn’t say how the height of the hot air gun will be controlled. We’d like to see a microcontroller adjust the height of the hot air gun depending on the temperature of the component to be reflowed. [Giorgos] gives an extremely detailed account of his build process. Make sure to check out all four pages of the project post!

We’ve seen a lot of interesting work from [Giorgos] over the years like this capacitive touch-pad entry system.

[via Dangerous Prototypes]

Hot air rework doubles as an herbal bag vaporizer

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This hot air rework station is being used for more than just soldering surface mount components. Since it has settings for temperature and airflow [BrokeHippieTech] figured it would work as a bag vaporizer. In the video after the break they show off the custom parts and then take it though and herbal blend bag fill.

The hot air station comes with several different tips. The smallest one was used to mount a vaporizer bowl using high-temperature JB Weld. On the output side of the bowl a metal stem was also affixed to interface with the mouthpiece of a vaporizer bag. The heat from the rework station brings the herbs just below the combustion point, releasing the active ingredients without including the harmful byproducts associated with smoking.

We’re putting this one under medical hacks because we hope it’s being used responsibly and legally. As with the last vaporizer build we looked at, we have concerns about what else the apparatus may be putting into the collected gases.

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Tools: Aoyue 968 3-in-1 soldering and rework station

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The $10 “fire-starter” is the most common beginner soldering iron. These are simple irons with a hot end, a handle, and little else. There’s no temperature control or indication. Despite their simplicity, they’ll do just about anything. You can solder any legged chip type with this type of iron. We used fire-starters in the lab for years.

Eventually, we wanted a hot air rework tool to salvage SMD parts and solder QFN chips. Aoyue is a relatively unknown Chinese brand that makes soldering stations very similar in appearance and function to Hakko. Aoyue stations are recommended and used by Sparkfun Electronics, something that factored heavily in our decision to buy an Aoyue. Read more about our experiences with this tool after the break.

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