Homemade Reflow Hot Plate for SMD Soldering - 3000W

🔥I want to solder a lot of PCBs very fast. I have the SMD stencil so I can apply solder paste. But I need the reflow hot plate and that's what we make in this tutorial using an old iron and Arduino power control.

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00:00 Intro
02:00 Iron Teardown
03:35 Thermocouple Test
05:01 Part List
07:09 Assemble
09:31 Reflow Test
11:38 Temperature Graph
13:39 Thank you

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#reflow
#PCB
#homemade

[ecospider]

A GFCI plug is needed first thing so you are protected during prototyping. Then like you said cover all the mains voltage connections before you consider the project finished. Also don’t let any mains voltage cables get within 1 cm of the low voltage cables. You don’t want failed wire insulation to energize your low voltage stuff at mains voltage.

[SACRED]

This hot plate idea is really interesting. I like how the main component is very common and cheap. Wish some other electronics youtubers would do more creative stuff like this.

[narayanbandodker]

3:20 My guess it is an over-temperature cut-off (if the bi-metal switch fails and the iron remains on too long). My electric kettle had one, which bends and turns off a physical switch when the water is boiling. In the iron, it may serve a similar purpose of a "fuse" for temperature

[PaganPegasus]

This is the most bootleg looking DIY hotplate I've seen, and honestly I love it. The raw look of it is such a fun aesthetic.

[Frustratedfool]

Never, in the history of my YouTube project viewings have I ordered all the parts so quickly! Thanks for sharing.

[JasonLearmouth]

I believe the mystery component is used to prevent the steam function from working when the iron is too cold to boil the water. It will block the water from flowing until it gets to a certain temperature and then it pops open. It's normally a much louder pop than the on/off switch.

[jakobfindlay]

Your the first person I've seen to use a clothing iron to make a reflow hotplate and it's genius

[tsxownz]

to improve heat distribution, attach aluminum plate to the iron plate! and then use that surface

[skelethornbro]

3:20 That is bimetal disc. It reacts to temperature and used as anti drip in steam iron.

[fakerio]

I've been planning for building this with an old chapathi maker.... Now you made it way too easy for meh... Thanks a lot bro❣️.. love from india

[Enjoymentboy]

This is a great design and something I've thought about for a long time. The uneven heating is something I thought about quite a bit too and I suspect that adding a larger 10mm thick aluminium plate on top of the iron would help with this. It would add a lot of extra mass meaning it would take longer to heat but it should help spread the heat more evenly and help retain the heat as well. I did something slightly similar to this years ago where I used an electric griddle and a cast iron pan on top of that. I didn't have any of the fine temperature controls or ability to set a profile but it did work quite well. Although it took a long time to get the pan up to temp the cast iron gave very even heating and kept the temps very stable.

[DevilbyMoonlight]

good job- I as thinking about doing something similar with a small induction hob and a bit of steel plate - but ended up using an old pan on the top of the stove instead as that worked out well for me - look forward to see how this progresses

[anzezaberl]

Please cover and protect high voltage lines to prevent anyone from touching them :) otherwise nice project.

[jackwilliams]

I've been waiting for this video. Thank you for making this and explaining smd reflow. It really ties the topic together from end to end when trying to dyi instead of saving for months or years to buy a decent size machine.

[jamjamamam]

I would make it from the one plate electric cooker. It is secure with the case, just add more sophisticated electronic temperature control

[Peter.Sky.Walker]

Looks like Daniele Tartaglia is trying to *one-up* your circuit board wall art. I love these videos.

[hkejhkm]

This is a good opportunity to apply predictive control, since you know the shape of the curve you want, the control system can "plan ahead" and give you much tighter results than with pid control.

[wizrom]

Modern irons like that have very limited amount of metal, and low thermal mass.
Its better to use an old iron with thick metal, you get more even heating.
You can also try a cover over the pcb, to keep heat in and make the temperature more even. A glass Pyrex bowl can work very well.

[EgonSorensen]

I have a hotplate for cooking I took apart completely, mounted the metal temperature sensor included with a PID controller - in the center against the ceramics, using metal brackets held firmly by the normal mounting mechanism.
Then I use the PID controller with the SSR with a socket fitting the hotplate, set temperature, turn on hotplate - and lit it settle/tune.
Nice and compact, no exposed wiring around hotplate - If you do this, Do *NOT* forget proper grounding/protection.

[rbmwiv]

Thanks for sharing this neat idea on how to make a affordable reflow bench