And here are the finished products. All tested and verified to work properly. 3/5 were perfect on the first try and the other 2 were fine after a little rework.

Hey friend, would you please tell me the source for the little hot plate you're using for your surface mount soldering?🤔🧐😀🙏🏻💖❓

I got it from c0pperdragon on Tindie. They don't make/sell them anymore, but the designs are public in case you want to build your own. https://www.tindie.com/products/c0pperdragon/hot-plate/

GitHub

GitHub - c0pperdragon/HotPlate

Contribute to c0pperdragon/HotPlate development by creating an account on GitHub.

I want another one myself, but I've been hoping someone else might pick up this project so I can just buy one instead of ordering custom PCBs, sourcing all the components, finding out a bunch of them are not compatible, ordering more components... you get the idea (or if you've done this before, it's more like "you know the drill")

Thanks for the deets...🙏🏻👍😀 I've seen SMT done in toaster ovens, but this tool looks awesome.💖

And I did look into building a batch of these a while back and I don't know how c0pperdragon was hitting that price point! I estimated like $45/each in parts alone for a batch of 10. It'd be about $130 in parts for one unit (mainly because the PCBs, stand-offs and screws are only available in bulk, shipping from at least 4ndifferent suppliere, a UPDI programmer... it adds up fast) I don't want to spend $450 on parts to build my one hot plate and then have 9 extras left over that I have to try to sell.

Oh it's absolutely amazing. That's why I am still considering doing a production run, despite the costs that'd be involved

It's a very slick design. Would be sweet to add programmable temperature profiling... I wonder if there are any suitable off-the-shelf temperature elements available anywhere?🤔

As lomg as you are willing to count clock cycles, I imagine that could be programmed into the MCU without much trouble. I'm not gonna test that with my only hot plate though. Haha