I built an SMT Hot Plate Machine | Assembly & Test | Elite Worm
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- čas přidán 8. 05. 2022
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Content:
0:11 Hot plate enclosure
0:45 Thermistors placement
1:38 Heating elements
2:10 Glueing the heating elements with silicone
2:57 Drilling the hot plate holes
3:26 Marking the wooden base
3:55 Milling and drilling
5:28 Rounding the corners and sanding
5:48 Assembling 3D printed foot
6:12 Power module
6:33 Wiring slots
7:08 Applying water-based dye
7:45 Components assembly
8:36 Soldering the microcontroller PCB
9:00 PCBWay sponsor video
9:57 Soldering the lighting PCB
10:41 Completing the hot plate assembly
11:47 Final test
After soldering my PCBs for a while with a clothes iron, I thought it was time for an upgrade. I searched for some commercial units but I did not find any that would fit my needs. They were all either too big or too small. I wanted a medium-size hot plate with enough power to solder the type of boards that I usually work with. Since I had to be able to record the soldering process, I discarded the idea of purchasing a reflow oven like the popular T962. Being an enclosed unit was not going to help with that, and they are not cheap either. Therefore, I decided to build my own. As always, I strive for a professional, clean and minimalistic look, but this time I wanted to use wood as the base material, and attach all the other parts to it. That was a challenge for me, because I have very little experience (and tools) to do it. It would have been great to have access to a CNC router, for instance, but I found my way to do it by designing some 3D printed adapters and fixtures, and used a regular mini drill.
The hot plate consists of an aluminum die-cast box that heats up thanks to 3 x 230 V / 150 W heating elements. These are glued to the top of it using a thermal resistant silicone, and they are the most powerful models I could find, being able to reach up to 270 °C. Nevertheless, the generous exposed area of the hot plate radiates a lot of heat, so the top surface of the plate will never reach such a high temperature. In fact, after some tests, I decided to order some more heating elements to add some more power, and be on the safe side.
These modules are connected in parallel, and a 40 A solid-state relay is responsible for switching them on and off. The temperature is monitored using a couple of NTC100k thermistors, also placed at the top of the plate, in an equidistant position. That temperature is displayed on the embedded 0,96’’ OLED display. A simple push button, with an incorporated red LED, lets you turn on and off the machine, both in manual and automatic mode. Finally, yet importantly, 12 RGB WS2812B SMD LEDs give the final touch to the build, and help me visualize the temperature state of the plate by changing its color.
I considered using an ESP32 microcontroller, as I have been doing on my latest projects, but I did not need WiFi nor Bluetooth connectivity, so I thought that using a simpler Arduino board instead was more than enough in this case. In addition, this way the PCB design was easier and faster to complete.
I used my trusty 3D printer to make four legs, and a bottom cover to hide all the wiring. I chose a silver silk filament for that, and I printed it on glass to give it a smooth and shiny look.
I hope you enjoy the video! Stay tuned for the next one.
Links:
Instagram: / elite_worm
GitHub: github.com/eliteworm - Věda a technologie
How would you improve my videos? What would you like to see on my channel?
I would love to see the videos with your voice. Your video quality is already amazing :)
By sharing all the project data, not just a description!
@@alejandroperez5368 I fully agree with you, a lot of video, but it does not share anything of the same. I don't validate at all to have subscribed to the elite worm channel
Elite Worm What is the use of sharing the video, if you don't share the files to be able to replicate it?
@@alejandrodanielvedia Entretenimiento, como la mayor parte del contenido en CZcams. No siempre voy a dedicar más horas a documentar todos mis proyectos, especialmente los más artesanales como éste, y menos de forma gratuita. Si eso es lo único que buscas, lo siento pero no es tu canal.
Your builds are always amazing. Really stoked on how finished everything always looks instead of a science project. Keep up the great work!
Hey Jeff! I really appreciate that since it’s the most time consuming aspect of my projects 👍
Your attention to detail borders on obsession. This is incredible work!
That was a joy to watch. I’ve seen hotplates made before but that was an original and fresh idea. Hats off to you.
I love the way you're working. Always neat, smart, precise, pro !!
Attention to detail is everything
Hi, great job of design and realization, the whole thing is super clean, visually beautiful and functional obviously, thanks for sharing 👍
Wonderful. Live terminals exposed to bare touch right under the hot plate machine.
What an amazing build! I wish I had all the tools and time to do something similar.
Thanks for the thorough explanations and identifying hardware. Damn clean look! And, subjectively, the upbeat jazzy groove really helped in stifling my inferior envy. New & immediate sub.
Amazing build, thanks for sharing
Perfection. The detals, editing, execution - amazing. Really well thought off. Only someone who ever attempted to do anything like that will really appreciate it as it really takes a lot of effort and work to plan and execute it. Subbed and waiting for more content - thanks!
Thank you SO much Adrian, I’m so glad to read that! I hope to live up to your expectations… Thanks for the sub 😉
Cool .. very impressed with the work that you done !
Very useful and a work of art 👍👍
Got a new follower 🥳🥳
Well done. Looks really good. Thanks
Cool perfect-made project
Factory made like wonderful DIY project !
This was NEATTTTTT!!!
Amazing work!
Do you have a part list and the schematics for the board? Would love to build this as well. Thanks for the video!
I love DIY electronics projects where the creator has such an attention to detail in making the project into a 'product' like finished item. Bravo, very neat, clean and something you'd be proud to show off on a desk!
That thin veneer level cut to make the display portion makes me wonder if it'd be a nice flexure to have buttons underneath, or maybe just to allow capacitive control through. 2022 The age where wood returns to electronics enclosures :)
Thank you so much for your kind words, and yeah, that’s actually a very good idea that I would have probably tried! 📝 Have a good one 👍
I like the safety idea of red light for heat alert and using wood as high temp material.
Excelente trabajo. Gracias
Das ist schon fast Kunst!
your tools are amazing...
nice project, would be nice to have a partlist including a link where you purchased them :)
Hi, A very nice project and would love to build the same. It would be fantastic if you could share the code and diagram. Thanks in advance.
Nice work
Thanks for the yummy episode!
The details and craftsmanship is soo interesting... do you just go into a certain mindset (self-hypnosis) when you get into a groove and time just flies away... does it get easier after each project, finding that Blissful moment...
If you wouldn't mind, posting how many hours and injuries you had from each projects... It'd be interesting... which projects were more from distraction or just tools not functioning correctly... lol
Cheers! To more Blissful moments, for every~!
Love that build, but could you make a list of the items that you used in ur build, and where did you buy them...
Nice info, thanks for sharing it :)
beautiful!
I love it. Beautiful job! Wonder how long did it take from first idea to finish?
You're a wizard :)
What a wonderfull world where there are so many things we can do without, if only we could make the effort.
that was really nice i liked that
extremely cool
Really cool! Nice project, i will make one similar for myself in the future. Here i can find the 3d printed parts for the milling machine? seems super useful! Thanks!
Amazing build quality!! What is the name/type of the tool used to mill the wood?
very professional
good works
I like how you show us all the steps to how you built it without showing us exactly how so we can't replicate it at home 🤣
do you have more about designing these 3d printed router guides?
I love your use of 3d printed positioning jigs, very clever! It would be a bit less sexy looking, but I wonder if the heat loss problem would be fixed with having only a metal top plate as opposed to an entire box with sides.
Perhaps surround the plate’s sides with a species of insulation?
I cannot find a plate in the size I’m after (roughly 3 x 4”, 75 x 100mm). The store bought ones are either a fair bit smaller (30mm x 30mm) or a fair bit larger (200 x 200mm).
Thought was to use a thickish aluminum plate with space on the backside for between two and five cylindrical cartridge heaters. He’s showing three, which tells me I’m probably not full of rubbish…
This is very nicely done! Do you have any plans on how to achieve something similar? Schematics/pcb/code of the arduino etc?
Great project though I would have placed at least a couple Ieds outside, near the on/off button and maybe some way to control the temperature of the plate. Still, this is better than most I have seen. Great job!
3:01 wow the chips from the drilling were making a cool wave on the plate. That must have been the resonance frequency of the plate vibrations. But I'm really just guessing here if anybody knows more about it. Awesome project
Yep, that's right. Look up "chladni plate" to read up about it.
You could improve it by creating a transparent diffuser for your LEDs, although I don't know if the back of the hotplate gets hot
This is a really incredible build! I love the attention to both form and function. What 3D printer did you use to print your parts?
Thank you! It’s an old Prusa MK2
Gran trabajo en todos los sentidos :) me encanta el ritmo de montaje del video !!
Muchas gracias Toni 🤗
@@EliteWorm What is the use of sharing the video, if you don't share the files to be able to replicate it?
I was just about to run screaming away at 0:24 as I thought you were to connect the total of 350W heating power with 3D-printed plastic. Luckily I stayed :)
Beautiful And Pro
3:02 wow!
Very nice build, everything was perfect, except maybe I would have used something else instead of the double sided tape, maybe some screws if possible, other than that it was amazing. Hats off to you!
Nice project! What kind of PTC did you use? The ones that I found after a search are only rated up to 200C, which would be a bit too low for lead-free solder.
I used the 270C ones 👌
Is there a kit for this or a parts list. I really need to make one of these
muy bello trabajo, de todo un profesional, una lastima que no pones el código del Arduino y esquemático para uno hacerlo no tan bien como ud. pero hacer el intento.gracias de todas forma.
Lets use thermoinsolation for the leads, while putting the element on wood.. well if your wood doesnt burn, so wont your leads, even while feeding current.
And, did it work though!?
Amazing job dude
Thank you, mate 😉
ahhaha, that's really something!! Well done 👍
Thank you guys 🙏
@Elite Worm Our pleasure! Already expect your next build
Good Job! :)
Very good
Nice build! Do you have any concerns about the wood getting burned? I've recently been considering buying a used solder plate or building one. Also, I've never seen hot glue used with a hot air station like that. What a great idea!
Thank you Aaron. I haven’t had any issues with that. There’s around 1 cm of gap between the hot plate and the wooden base. Anyway, if you have the chance to buy an used one, I don’t think going through all the hustle of DIY is worth it, tbh.
This would be nice to keep my coffee hot
Functional Art.
Briliant... the attention to details and the end product are amazing... but at first you make me very nervous when I saw the 3d printed part with the heaters, then I realize it was just a jig to align them, but then you use the jig again a fill it with silicone and I though again you're gonna leave there... but finally you remove it :) I liked the jig to make hole with the right size, but I can't image how to make them considering the final size/size of the mini router base ... BTW, at 11:30 I think you meant ground wire
Thank you so much David, I try my best to make it look professional, and that’s really time consuming!
Chladni pattern @3:00 cool!
I will buy this
does it follow a reflow curve ?
FRIEND WHERE CAN I FIND THE DIAGRAM AND CODE OF THIS BEAUTIFUL AND PERFECT PROJECT? THE COMPONENTS, DO YOU HAVE THE LINKS WHERE I CAN BUY IT?
How many hours total from design to completion?
great build! I'd suggest you add some covers for all the live terminals to solve the concerns of someone picking this thing up by putting their hands under it as well as for the plug, with the flimsy-looking mounting I immediately thought of putting my hand behind it to not break it when plugged in, which depending on your luck could send you to the ER ;)
I really like the idea, though, and I'm considering making my own instead of repurposing just some toaster oven
That was my first thought with that bracket too, it looked very flimsy.
hi, can i have the tutorial or something similar so i can build my own like yours
thanks alot
Got a link to that case you used? I'm looking for something appropiate for mine but can't find anything that isn't 12" long! I don' have tools for cutting metal like that at home.
I'd be careful with wood around such a hot component. it feels like a really bad combination to be honest!
I am struggling with the thermistor 100k to find a suitable bias resistor for it.. It is not accurate
perfect ı like it
Why you used a heatgun to heat up your PCB on 12:00 instead of your hot plate? And placed already soldered PCB on the device on 11:45 ?
We could just make a hot plate. Or we could make a beautiful hot plate. I liked the 3d printed jigs and parts.
Oye ye smaan kahan pe milega
3:00 beautiful pattern 😍
You accidentally made yourself a chladni plate 😂
Iska price kya
Cool but please, secure the ssr contacts more
More rc stuff plz
Il codice arduino e il progetto del pcb?
What is the maximum temperature you achieved with three 150W cells?
About 220 *C
😍😍😍
See, there ya go. All you need now is to make your own CNC machine.
A metal case with no earth connection close to mains voltage heating elements is a potential death trap. It's an appliance which you actually touch when adding or removing PCBs. The mains wiring on the base plate is also exposed and anyone who lifts the device up risks the danger of an electric shock. There's no thermal runaway protection (thermal switch) in case the SSR should fail - SSR most common failure mode is a fail to short. Mains voltage fuse? I haven't seen one.
Please be careful and mind your responsibility - there are people who might build this and could make you responsible for the consequences of a) electric shock (injuries, death) b) burn down of their or other's houses (injuries, deaths, financial).
If the thermistor fails and your heating elements detach after they surpass 350 °C and will happily continue to heat. The system will also ignite if any element within the thermal control/feedback loop should fail or degrade. This could be a bad thermal connection between thermistor and the case, a bad thermal connection/bad coupling of the heating elements. Either case would lead to full power on the heating elements without the control loop having a chance to detect it.
Looks absolutely gorgeous, but there's an awful lot of "glue" in there.
Excellent, but it would be even more great, if you speak or give a subtitled explantion & also if you describe each parts you are using in your video.
Some components were really new to me & it would be useful for me, If you provide the name.
Travel blog music ???
🎉🎉🎉🎉❤❤❤❤😊😊😊😊
Годный контент. Ютуб рекомендовал это даже в проклятую и отмененую Рф. Хотя и с лагом в три месяца. Значит не все потеряно...
So ice/water forming inside? Cant have hot without cold
Tell me which part of an electric heater gets cold. These aren’t peltier coolers
@@retards587 thought they were. Not sure what it is then. "Heating element"
@@mwint1982 most likely just a big ol’ resistor with a high power rating
@@retards587 yep those are heaters
same style used in 3d printers just a differnt form factor
Well I don't see any hot glue here, what's going on?
exposed mains voltage on underside? You serious?
Looks very nice and functional, but I unless I missed something I have a bit of a safety concern. It looks like you have exposed terminals connected to mains power, so anyone grabbing this thing carelessly may be in for quite a shock. Literally.
please provide the arduino code
If you're not smart enough to recreate the process, you're probably not smart enough to recreate the product
@hunted i am not smart enough. Hunted
@5:25 I disagree. That looks like precisely the correct tool for the job to me. You have it, it's fast enough, it's precise enough, and this seems to be a one-off job. Buying a specific tool, like a belt sander, would be a terrible waste.
Yep, you are right! Good point. Thank you for your comment 👍
Breh. I appreciate the little details... but you put a cover over all the low voltage circuitry, meanwhile there is live A/C out in the open all over the place. If anyone else is reading this, and wants to build one of these deathtraps, consider buying a low voltage high amperage AC/DC adapter, and leave the A/C where it belongs... in a sealed box with FCC/CE markings. Nice editing though!