Article

Mini Reflow Plate

For Assembling or Repairing Small SMD Circuits

The transition to SMD miniaturized components marked, for many, the beginning of a series of assembly difficulties to be overcome. In addition to the not-so-easy placement of components, specific temperatures and timing must be adhered to for the soldering cycle. Professional reflow soldering stations are expensive. In this article, we present an effective yet reasonably priced solution for assembling/repairing our boards.

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Materials

Gerber Mini Reflow Plate.zip

SW Mini Reflow Plate.zip

Component list

Component List

Resistors

R1…R3 = 470 Ω
R2 = 10 kΩ
R4…R5 = 47 kΩ

Modules

U1 = Arduino Nano

PS1 = 3WMA2205V (PSU Module)

BRD1 = MODMAX6675 (for K-type thermocouples)

LCD1 = OLEDGVSCSD (0.96″ OLED)

Miscellaneous
BZ1 = 5 V buzzer (without oscillator)
Header strip, female, 4 pins
Header strip, female, 15 pins
Header strip, female, 5 pins
Screw terminal block, 2 poles

Rotary encoder with pushbutton

Heating element: 400WPTCRISC on https://futuranet.it
also available from Aliexpress and Ebay by searching for "400W PTC heating plate" (choose 400 W version, and the correct voltage for your country)