Halogen floodlight SMT reflow

Posted on Tuesday, July 11th, 2017 in DIY, hacks by DP


David Sanz Kirbis built his own reflow device with an halogen floodlight, that is available on Github:

First test was to check the speed of the temperature rise inside a standard halogen floodlight. Reflow soldering temperature curves are quite demanding, and some adapted ovens can’t reach the degrees-per-second speed of the ramp-up stages of these curves.
I bought the spotlight, put an aluminium sheet covering the inside surface of the protective glass (to reduce heat loss), and measured the temperature rise with a multimeter’s thermometer…. and wow! More than 5ºC/s… and I better turned the thing off after reaching 300ºC and still rising quickly.
So the floodlight was able to fulfill the needs.
Next step was a temperature controller, that is, the device that keeps the temperature as in a specified reflow curve profile in each moment.

See the full post and more details on his blog, TheRandomLab.

Check out the video after the break.

This entry was posted on Tuesday, July 11th, 2017 at 9:24 pm and is filed under DIY, hacks. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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Recent Comments

  • Drone: The LM7171 used in this very simple design can be simulated in LTspice with reasonable results at 10MHz using the non-encrypted PSPICE model from TI...
  • Jon Jackson: I would be interested in 1 or 2 of your circuit boards. Jon
  • Max: An actual Saturday "detector" built with the same hardware would use the precisely timed slightly varying length of the day (and some built-in astronomy data)...
  • KH: In the old days, these things remained on paper forever as whimsical scrawls. Today, they are brandished about on blogs for the entire world to...
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