Modern surface mount components often need special tools for rework. However, those tools can be expensive. [Michael Skrepsky] wanted an infrared rework station, but didn’t like the price. So he built his own.
According to [Michael] he used a lot of scrap in the construction. . He used K-type thermocouples, optotriacs, triacs, a 20×4 display and, of course, an Arduino. An old bathroom heater, along with a 600W and 100W halogen bulb work as heaters.
The Arduino runs two PIDs. One is a slow regulator for preheating. The other is an interrupt-driven phase regulator for the top heater. [Michael] built the circuit on a protoboard but provides a layout along with the Arduino software and key schematics. You can see a video of he machine in action below.