Better to glue them. And subscribe to my YouTube channel. The photo here shows the fans being tested for fit; they are taped up together and they they should easily slide in from the egress side. With a knife or small jigsaw, the centre can be cut out. Fan suction will hold the tape in place tightly. Note: This is part 1 of a two-part project. I came up with this design as final. I cut the cabinet with a dremel and then spray painted it. Very nice! To put it simply, it is easy! It's an incredible software to do designing, 123D and SketchUp were good, but Fusion 360 changed the way of designing. A few lengths of square section wood (preferably hardwood) dowel is also needed; I used 12x12mm section. A really elegant solution was found by luck; there is a, Open Source Hardware requires membership for participation - click to join. Some other key points about this project is that it uses reasonably cheap particle filters (intended for vacuum cleaners) and a fume filter as used in commercial solder fume extractors. The 3D printed filter box and plenum were the priciest parts, followed by the Hakko C1571 duct kit, the San Ace 9LG fan, laser cut acrylic panels, all fasteners, corner brackets and other metalwork, and the electrical components. Just to explain the diagram, it is constructed like a tube, with an air ingress side and an egress side. You can grab the design files if you would like to have a go at building the Rev 2 board as seen here, or designing your own 16F1788 based PCB for any fan control needs. They specialize in PCB prototyping, low-volume production, and clean PCB assembly. The design intent is focused on keeping the box as compact as possible. Can we hope have it released someday soon ? I am super impressed. In the following line, we are going to turn on and off the MOSFETs that are connected to the Arduino Pins 9 and 10. This means that gaps around the edges of the panels are minimal, and I did not have to grind or drill any new holes to get the fastener holes lined up.
I also used some washer, but it is not a necessity. At this point the Fan Internal Surround can be glued on two edges and fitted into the assembly. Why cant we have a machine that actually filters smoke, but isnt a huge metal box that rolls around on the floor? To do this, we are going to output PWM signals with values that were generated from the lines that came before them. You should be able to upload your Gerber file and send it for review on the next screen. This is why fume extraction is necessary when you solder on a regular basis; inhaling any kind of smoke can only be a detriment to your health! The Earth connection is made with a 4mm banana socket. Therefore, breathing in solder fumes is very, very bad. My activated sponge was large enough so I needed to cut into the required part. In order to use the compare capture modules (CCP) for both generating PWM to control the fan and counting the period of the fan tachometer input, I needed to alter the pinout of the fan connector. When you have all the parts and the PCB, you can solder them together. The repetitions will depend on the thickness of the sponge. With such easy precision, it will all fit together well, not much harder than flat-pack furniture (I long for the day IKEA sell flat-pack soldering fume extractors). Links to everything you'll need is in the parts list above. I seriously think you are on to something. Change the information about your board on the PCB specification screen. (EDIT: Here is Part 2: Building a Low Cost Solder Fume Extractor - Part 2 ), I built quite a few Heathkit products back in the day. It can be used as-is, or shortened. A site dedicated to projects I do for fun. Filters A and B are quite dense whereas Filter C is like a very aerated sponge and you can see through it. The Fan Support A/B pieces can now be glued into place, using the Support Blocks as needed. I designed a DB9 connector into the front panel just in case I want (or need) to update firmware in the future. :). Glue the second Side A piece into position (dont glue to the Ingress Plug), Remove the Ingress Plug assembly which was just clamped into position, Glue the Jig Piece long edge to the Jig End. Not bad. It was an extremely tight squeeze, but everything did fit in. You can save $5 when you sign up through the link below, and you can save another $5 when you check out by entering the coupon code PCBWayLab. 
Oh those speed controllers are a good idea! Solder the red wire to the +V and black wire to the Ground. Since flux is essential in achieving strong solder joints, there is no way around producing smoke when soldering.
Pressure builds up (in this case a reduced pressure between the filters and the fan, since the fan is sucking through the filters and not blowing) to the point that the fan works so hard that air flow is greatly diminished. Check out the link below if you want to make your own PCBs for your project. Once the prints are ready, it's time to assemble everything. In this video, we'll make a soldering fume extractor out of an old PC fan and a 12V LED strip that can be used to change the light. The filter will be held in place firmly when the end plate, the Ingress Plate, is screwed on. PCBWay is a company that makes printed circuit boards (PCBs). Start by tracing the outline of the fan. When assembling it, one important step is to ensure that the Fan Ingress Surround is air-tight when glued to the sides. The diagram here shows the measurements I used. It's an incredible software to do designing, 123D and SketchUp were good, but Fusion 360 changed the way of designing. The small pieces marked Support Block could be omitted, but are used for strength. Beware this fan works in one direction only, so you need to solder it in the right way. This is how the PCB looks after the soldering is done. replacement capacity is significantly larger. The downside is this fan has a lower CFM, meaning you'll need to keep it closer to what you're soldering. The wood enclosure was easy to cut and assemble because it was made from very rigid but thin plywood. How to make a DIY Rocket Launcher using Arduino - Design the circuit, make a rocket ignitor and control the launcher from your phone. There are a lot of wood pieces, so it helps to label them as soon as they are cut to prevent confusion. Pretty good response time to iosc 's request. This project cost around 5$ but works like a charm. It came in convenient 300x210mm sized sheets as a pack of 10. and the sides were already very square, which makes accurate marking and cutting easier. The reason is, since the HEPA filter is very dense, if air-tightness is not achieved for the fans to the filter side, then the air flow will take the easier path, short-circuiting around the fans : ) Similarly, each fan frame needs to be air-tight against the next. To do this, find the centre of the the wood and then draw a circle of 115.5mm diameter using a compass. I did use carefully (syringe) applied JB weld to secure the mains power receptacle into place, as well as tacking the nuts for the top panel to the top four corner brackets (or else it would be impossible to put the last panel on and hold the nuts from inside the box!). The Aux connector is a mini DIN socket; it will be used for extending the functionality at a later date! Firstly prepare the filter. Then factor in all the sweat equity for designing, physically assembling the prototype, and developing firmware. Leg stuck in hole in pcb, cant melt out using everything Amazon Fire Stick 4K - redirect Micro USB help. how to get your 3D model printed without owning a printer, The removable filter cartridge front half. When combined with such dense filters fans have to work harder to force air through. Fortunately, the tolerances on the laser cut and 3D printed parts are very tight. Check out the link below if you want to make your own PCBs for your project. PCBWay is where I got PCB. Of course, the information and files provided are for recreational (non-commercial) use only; no guarantees are expressed or implied. Breathing in lead is bad. Connect with your peers and get expert answers to your questions. I have a cheap desktop fume filter extractor on my bench (it has a particle filter of sorts) as I couldn't justify the cost or the space taken up by, Wooow that was fast !! Most of my parts are salvaged, I highly encourage people to salvage and recycle but if someone wants I have all the item listed below. I don't have any good quality photos but here is a low-quality one. After the, It basically consists of a hose, some filters and, The hose is an anti-static one, to prevent static electricity build-up from particles in the air. Rosin is a serious occupational health hazard. The ingress side is on the left side of the diagram. Want to support Howchoo? We're hiring! If you like this project, share this with your friends and also like my Facebook page. The input voltage is connected to a 7805 voltage regulator, which will turn the VIN into a steady 5V DC supply. Next, using the Jig Piece/Jig End as a spacer, glue the two Filter Stop A pieces, and one of the Filter Stop B pieces. In the setup function, we are going to declare the pin mode, which is essentially going to tell the Arduino whether the pins are input pins or output pins. Combine that with the cost of good soldering irons, and you're looking at some expense. The relay gives the operator full control over any fan without having to turn the main DC supply on/off. The panels are laser cut 5mm thick acrylic. Take the grill and glue the DC jack and the switch on it. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. I love making projects from scratch whenever possible, so soldering comes in the process, which should be done in a well-ventilated environment - unless you can use a Fume Extractor. Furthermore, since it is a custom project, it can be extended for additional functionality. In this tutorial, I will share what I used for so many years. The pins are given in the diagram. Take out the power supply and turn on the fume extractor. Good soldering practices are an extensive subject, but a few key components are essential in almost every technique. Using MPLAB X IDE 5.40 and Microchips free XC8 compiler, I spent many hours with the Rev 1 board to get various bits working; multiplexing the common anode display, rotary encoder software debouncing, learning about PIC ISRs, using the compare-capture (CCP) modules to generate PWM and use hardware timers this project presented a healthy number of challenges for a first go at 8 bit PICs. Apply some gentle pressure so it fixes properly. However, I have only recently (almost two decades later), learned how to solder properly. By the way, speaking of this, I got this grill out of an old PC cabinet. Thank you so much, great work. We've put together a guide to help you find the best soldering iron for your next project. :). In a more professional setting (and where labor laws are actually observed), solder fume extractors are large boxes positioned on the floor, with ducts running up to the operators work area. You can save $5 when you sign up through the link below, and you can save another $5 when you check out by entering the coupon code PCBWayLab. In a desire to reduce solder fume gasses and particles inhalation, this project seeks to filter it all out using parts such as vacuum cleaner filters and PC fans. Repeated exposure can cause respiratory and skin sensitization, causing and aggravating asthma. 4mm thick plywood (all dimensions in mm): 12x12mm Dowel (all dimensions are in mm): The Internal Fan Surround needs a 115.5mm diameter hole. An Avnet Company 2022 Premier Farnell Limited. is a company that makes printed circuit boards (PCBs). With hindsight it could also be possible to use a bathroom fan or other fan intended for connecting to ducting within a building. I am super impressed. They included solder, and it had the best smelling flux. 3. Test that the HEPA filter (Filter B) comfortably but snugly fits into the assembly, and hits the Filter Stop A/B pieces. There are many styles of smoke extractor, each with its own tradeoff between physical size, filtering performance, and overall handiness when setting up and using. One of the Side A pieces can have all the holes for the connectors, LED and power switch. If you instead used a USB fan (as I did), you'll want to plug this hole so you don't get any air leakage. To order a PCB from PCBWay, go to the PCBWay website and fill out the instant order form with the board's basic information. I wanted to design a leg that could be easy to use and also the height could be easily changed. Next, draw lines on the Side A/B pieces, where approximately the Fan Support Blocks are desired. There are two potentiometers here that are connected to the 5V and will act as voltage dividers. I designed the whole model in Autodesk Fusion 360. There are a few attempts at such a product on the commercial market, but they still required too many compromises to use. Press J to jump to the feed. You can turn them on by turning on pin 9 and pin 10 of Arduino. element14 is the first online community specifically for engineers. Change the information about your board on the PCB specification screen. It is available as 3-ply. The Egress Plug assembly was glued onto a Side B piece, The Ingress Plug was temporarily clamped into position (dont glue it, we will use it just as a support for now). It didnt occur to me at the time. I used four fans. PVA (wood) glue was used. Filters A and B are vacuum cleaner spare parts therefore they will not be as good as the filters used in commercial solder fume extractors. The square is used to ensure the frame has perfect 90 degree angles. Building a Low Cost Solder Fume Extractor Part 1, Im sure Ive created some really stinky projects, but this isnt one of them. After the firmware on Rev 2 had reached a satisfactory state, I opted to finish the internal wiring and button up the entire assembly. The dimensions in the project leave very little space for the electronic connectors/components. Let's get started coding right away. I wrote a short guide on how to get your 3D model printed without owning a printer.
As an experiment I decided to see if it was possible to build one.
Put the leg in the desired height mount hole and fix it with the M4 nuts and bolts. This is also possible because the filters are housed in a separate compartment. This is pretty much the whole circuit. The Best Soldering Irons: Read This Before You Invest (2022). Using a pair of scissors or a box cutter, cut each one down the middle twice, resulting in four 65mm squares of equal size. This project will mark my first venture into PIC territory!
With hindsight, I might make it a bit bigger, or else rearrange the assembly method so that a side panel is glued or screwed on last. With a sharp pencil you can mark (for cutting and sanding operations) to sub-millimetre accuracy, and then during assembly, by looking at the gap between the square and the workpiece, it is possible to get an extremely precise 90 degree alignment.
Finally, use the four included fan screws to secure the fan and its grill to the housing. Though I could connect batteries if needed. All Rights Reserved. To my amaze, this fume extractor is monstrously sucking the fumes and, due to the activated carbon filter, everything is getting trapped in the filter. When we solder, we are around lead. If I had to guesstimate the bill to buy and replicate this fume extractor, the total would be between $500-700 USD in raw materials alone. Download the model from Thingiverse and print the five main parts of the model: No supports are necessary. With an Arduino, a PC fan, and an LED strip, you can make a simple fume extractor that will keep you safe from the fumes from soldering. Making a DIY Soldering Fume Extractor with Lighting, ControlEverything.com 4-CHANNEL RELAY CONTROLLER FOR I2C, Home Automation with Arduino Uno and SmartEdge Agile, Soldering Iron Controller for Hakko 907 v.2. Even if you only solder things once in a while, it's a good idea to have a solder fume extractor nearby to suck in those toxic fumes and run them through a carbon filter to neutralize them. If you'd like to solder your own fan circuit instead of using a USB fan, see the instructions on Instructables. Explore Howchoo's most popular interests. Here, I'd like to point out that pins 9 and 10 are PWM pins, which means we can send PWM signals to the MOSFETs. I made the holes centred 26mm off the egress side edge. How much of the smoke escapes through the back? Howchoo is reader-supported. APC 2200XL UPS electrical refurbish + old vs new componentcomparison, Military Jet Engine Generator Repair MEP362A, Bench-top (footprint < 1 square foot, shallow depth facing the operator), Multi-stage filtration using easy to find, off the shelf filters. Google Drive fan controller rev 2 gerbers, BOM, schematic, firmware.
In a really good way! I designed the whole model in Autodesk Fusion 360. 2. I see what the problem is. By using a fume extractor, you and those around you will be safe from fumes that could be dangerous. After putting the new box to the test with a few smoke-heavy soldering and desoldering operations (VFD, binding post, and capacitor replacement on an eBay score Agilent E3648A power supply), the room did not stink nearly as much as it would have without my new fume extractor. Once you have the outline, repeat the outline until it cuts the sponge completely. While I was designing Rev 2, I also opted to add a relay for turning the fan power on and off; some PWM fans will turn off at low duty cycle, but others do not. You can probably save a few bucks by soldering your own fan circuit, but the one I'm using is quite powerful and is only about $11. Filter C, the charcoal filter, is an item that can be purchased as a spare for a low-cost basic single-filter solder fume extractor, so it should at least be as good as that product. Hopefully you get a kick out of it! For the housing, we're going to use an excellent design created by rdmmkr on Thingiverse. Once the circuit was done and tested, I used Altium to design a small PCB where I could put all the parts in a neat way. There's an internal hole in the unit that's meant to run the fan cord through if you created your own fan circuit. While the laser cut panels and 3D printed bits were on order, I began with fabbing up the first revision of the controller. Flux generates the visible fumes seen during soldering. If you need a good soldering iron, then we've got you covered. One of the Side A pieces can have all the holes for the connectors, LED and power switch. One of those components is flux. After the last project that sucked, I hope this is the last one to do so for a while : ).
Today, I'll show you how to build your own for about $20. A place for solderers from around the world, to gather, help one another, and hang out. The enclosure is designed for an exact fit around the HEPA filter because that is the largest component. I opted to do this since this is the very first physical manifestation of this project, and did not want to scrap the entire thing if I needed to make a change. As mentioned after cutting it can be sanded for precise trimming if the wood is cut slightly too large; the wood is so soft that it takes just seconds to smooth out. As an Amazon Associate, we may earn a small affiliate commission at no cost to you when you buy through our links. Think of it like a 2D printer, but with an extra dimension. I came up with this design as final. Since the fans are smaller than the tube, they are centred inside the tube using the Fan Support A/B pieces. It has the properties that it is rigid but slightly springy, very flat and stable, and cuts easily, and can be very quickly sanded to size with a sanding block and 150-200 grit paper. I'm very interested by your project but it seems like you never released part 2 - am I right ? So, is it possible to combine the best of both worlds? I havent used it for a long time yet but the three times I used it for a quick connection it worked really well, I still noticed a bit of a smell but nowhere near without it. Here, you can see that routing is done on both sides of the board, which means it is a dual-layer PCB. The photo below shows how this will work; there are four retainer pieces called Filter Retainer A/B, and they will not be glued, they will just be inserted into position and then the dowel assembly and the end plate will push against the retainer pieces to keep them in position. Not only it can be used for soldering, it can also be used for 3D Printing ABS, as its fumes are also toxic in nature. They specialize in PCB prototyping, low-volume production, and clean PCB assembly. This is exactly the size you'll need. Ive wanted a solder fume extractor for home use for ages they are quite pricey though. After all the four nuts are fixed, take the sponge that we had cut in Step 1 and push it between the bolts and press so there are no gaps left. This will also hold the back part of the housing shut. All of the fasteners and corner brackets are off the shelf items from McMaster Carr. Improved version of the soldering iron controller for Hakko 907 iron. The ones I ordered came with five filters, meaning you get a total of 20 filters after cutting. It will involve painting the wood enclosure, and adding in the wiring, final assembly and then testing it out! The project is designed around the idea that a lot of electronics that is thrown out contains fans; examples include desktop PCs and servers. Flux is a chemical used to clean the metal surfaces that you are applying solder to. You can then turn the fan on and off using the controls on the fan's USB cable. Next, drill small (3mm approx.) Software engineer, designer, tinkerer, and beer enthusiast living in Tampa, Florida. shabaz clearly has blog writing super powers! For this project, we'll be using an amazing 3D-printable model designed by rdmmkr on Thingiverse (thanks, rdmmkr!) To do this, simply use a bit of electrical tape or hot glue. This only applies if the same HEPA filter and fans are being used otherwise the values will need to be adjusted. Filter C is closest to the ingress/air inlet of the fan. We use cookies on our websites for a number of purposes, including analytics and performance, functionality and advertising. Also, breathing in the fumes can cause long-term health problems, such as stomach problems, problems with memory and concentration, muscle and joint pain, and so on. Whats the best practice for soldering these types of Can anyone visually see anything wrong with this GPU PCB? I am sorry about that, I had intended to do a part 2, but got diverted : ), Building a Low Cost Solder Fume Extractor - Part 2, 1. Anyway, the PC fan approach does have a few advantages, such as they may already be lying around in an electronics lab, and they are low voltage (12V) so the project is easier from an electrical safety perspective. For maximum effectiveness, place the extractor close to where you're soldering. The entire project is more an exercise in woodwork than in much electronics to be honest. Put all the parts on the board by soldering them on, and make sure to check the polarity of the parts.
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