DIY REFLOW OVEN : 10 Steps (with Pictures)

About: I am a 23 years old student from Germany who love to make things. Later I want to become an Electrical Engineer :-) https://www.instagram.com/vulcaman/

If you are looking for more details, kindly visit our website.

In this Instructable I want to show you how you can build your own SMD Reflow Oven for under 60&#;.

For a few month now, I decided to getting deeper in electronics und PCB-Design. However many SMD components you can buy are so tiny that they are really hard to solder. In the Industry, the standart is an Oven with a predefined Temperature Curve, a so called Reflow-Oven. However a Industrial grade Reflow Oven is really Expensive, so I have searched the Web and I saw a lot of People converting an old Pizza-Oven to a Reflow-Oven. Sadly I couldn't find one which will look that professional I would like. So I started to build my own reflow oven and decided to make it Open Source :-)

The reflow oven has the followings features:

• W of Power
• Touch Screen
• Modern GUI with Temperature Curve, Keypad and Parameters
• Permanent storage of the settings (Stored in Flash)
• STM32 Microcontroller (Blue Pill)
• PID Temperature Controller
• Overall Cost +-60&#;

Videos of the Reflow Oven

If you like my Instructable, please vote for me in the Automation Contest

With competitive price and timely delivery, JYN sincerely hope to be your supplier and partner.

Visit my Instagram

Visit my Website

UPDATE:

[27.03.] Fixed Integral Wind-Up in PID Controller, Actual Temp will draw longer now

--> Updated STM32 Source Files

I did a hot plate project for U.S. makers using the $10 Walmart hotplate and a circular saw blade.

But I have to point out that when you go from hand soldering of SMD parts to an oven or hot plate, you then have to deal with solder paste. It's difficult to avoid putting on too much paste, and the way to avoid that is to use a stencil. In many cases, by the time you order a stencil, work up a system to mount it, order solder paste (which has a limited lifespan even if refrigerated), and then place all the parts, it may end up being more trouble than just hand soldering. Of course for some parts you don't have a choice, but it may be that specifying packages that are easy to solder by hand works well enough.

Anyway, here's the hot plate and saw blade. It's based on the idea of turning the element on, then off, then on again for specific times, which turns out to be very forgiving. That's as opposed to trying to measure temperature with a thermocouple, which can be a bit tricky and lead to scorching.

If you are looking for more details, kindly visit Smt Reflow Ovens.