Being that this my first time using PIC, I knew the learning curve was going to steep! Cost could be saved by using a non-anti-static hose. 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. 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. The diagram here shows the internal layout. Thank you so much, great work. PCBWay is where I got PCB. 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. For the housing, we're going to use an excellent design created by rdmmkr on Thingiverse. 
There are two potentiometers here that are connected to the 5V and will act as voltage dividers. Place a filter into the cartridge and slide it into place. Flux is a chemical used to clean the metal surfaces that you are applying solder to. This was because I has not initially considered that the fan power would need to be ramped up. 4mm thick plywood (all dimensions in mm): 12x12mm Dowel (all dimensions are in mm): The Internal Fan Surround needs a 115.5mm diameter hole. 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). 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. This is the code that will be uploaded to our Arduino when we complete the process. :). element14 is the first online community specifically for engineers. One of the Side A pieces can have all the holes for the connectors, LED and power switch. replacement capacity is significantly larger. Cool!! Repeated exposure can cause respiratory and skin sensitization, causing and aggravating asthma. Change), You are commenting using your Facebook account. The square is used to ensure the frame has perfect 90 degree angles. This project is intended to greatly reduce the amount of fumes in the soldering iron vicinity, and the hope is that the particles are being captured in the filters and not being recirculated in the room, although I cannot currently confirm this. 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. Saves electricity and makes your home a smarter one with the security of Avnet. While the result does not compare with high-end commercial extractors, it is better than nothing, and I feel it is slightly better than the low-cost desktop fume extractors which only remove some gasses and do nothing about the smoke particles. When combined with such dense filters fans have to work harder to force air through. Hopefully you get a kick out of it! Of course, this style of extractor is usually equipped with several stages of filtration down to the submicron level, meaning it does a good job of actually capturing smoke and the pollutants you want to avoid breathing. To begin, we will be declaring some variables and then assigning them to the pins that will be often used throughout the course of this project. It's an incredible software to do designing, 123D and SketchUp were good, but Fusion 360 changed the way of designing. By the way, speaking of this, I got this grill out of an old PC cabinet.
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. Though I could connect batteries if needed. 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.
To put it simply, it is easy! Next, drill small (3mm approx.) Glue the Ingress Plug to the Ingress End Plate. The fume extractor works to a distance of 20 cm. Filters A and B are quite dense whereas Filter C is like a very aerated sponge and you can see through it. A really elegant solution was found by luck; there is a, Open Source Hardware requires membership for participation - click to join. Firstly prepare the filter. (LogOut/ 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. The four sides of the tube (only two sides are shown in the diagram) are glued together permanently.
soldering block I have the files uploaded, If you like this project, share this with your friends and also like. 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. Static pressure is also decent at 2.63 inches of water, meaning that it should be able to pull air through a respectable filter. The fan is a San Ace 9LG1412P5G001, which is a 140x51mm axial fan with a max airflow of 318 CFM. Most filters come in a large size, so you need to cut it into the desired size. 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. As the old adage goes, you get what you pay for. Part 2 will cover the rest of this project. I didnt see any smoke coming from the back, but it couldve been dispersed by the fan to make it harder to see. 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. But fume extractors are really expensive, like 70$, which beginners like to skip because of the price. All of the fasteners and corner brackets are off the shelf items from McMaster Carr. 3. I made the holes centred 26mm off the egress side edge. The red wire will then be soldered onto the switch and from the switch, one more wire will connect to the other terminal of the switch and the positive terminal of the fan. We are taking the analog readings from the two pots, and within the loop function, we are mapping those readings to a value that falls somewhere in the range of 0 to 255. 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. (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. 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. 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. The pins are given in the diagram. To do this, we are going to output PWM signals with values that were generated from the lines that came before them. It didnt occur to me at the time. Commercial solder fume extractors can cost upwards of $70. Sure, the fan might pull fumes away initially, but that scrawny piece of activated charcoal doesnt do much in terms of actually removing the smoke particles from the air. While the laser cut panels and 3D printed bits were on order, I began with fabbing up the first revision of the controller. After the last project that sucked, I hope this is the last one to do so for a while : ).
The HEPA filter (Filter B) was also checked for fit: The filter has a rubbery lip which mates with the side of the Filter Stop A/B pieces, creating a nice seal. If you'd like to solder your own fan circuit instead of using a USB fan, see the instructions on Instructables. That being said, the time and effort spent on this project should pay dividends for all the soldering I have planned across various future projects! Use two small screws to secure it in place. They included solder, and it had the best smelling flux. I printed the housing in white and filter housing in red to make it a bit more aesthetically pleasing. Also, soldering parts onto the circuit board is hard on your eyes, and doing it in low light can eventually damage your eyesight permanently. fume extractor solder instructables We've put together a guide to help you find the best soldering iron for your next project. This is how the PCB looks after the soldering is done. Then, close the two halves of the main housing around the fan, ensuring that the fan is oriented correctlyto suck in air from the front and push the air out the back. However, I have only recently (almost two decades later), learned how to solder properly. 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. 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 !! 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. Connect the fan to a USB power supply (this is the one I used). The ones I ordered came with five filters, meaning you get a total of 20 filters after cutting. 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. Connect the black wire from the jack to the negative terminal of the fan. The filters should take out the toxins, but is the smell reduced as well? This will also hold the back part of the housing shut. Test that the four fans (taped together) comfortably but snugly fit into the assembly up to the Fan Internal Surround (see photo below).
The Fan Support A/B pieces can now be glued into place, using the Support Blocks as needed. For the second part, see here: Building a Low Cost Solder Fume Extractor - Part 2, Im sure Ive created some really stinky projects, but this isnt one of them. I made a similar build, but used one of these, and a DC adapter instead of batteries. Anyway, for occasional home use, I think it could be worthwhile assembling such a device for maintaining your health while working. Once the review is done, all you have to do is add the PCBs to your cart, pay for them, and wait for them to arrive. 