Hack A PCB

Is there a good way to solder or just connect wires directly to traces on a one sided PCB?

Posted by Doug Costlow 10 years ago

need pcb help

Im wondering if I can use a ink printer to make PCB layouts, Because its all that I have, and im on a low budget.

Posted by newwarhammer2 6 years ago

pcb schema of 8 layers

Hi please help me to find a schema of 8 layers.I have a training on a multilayer circuit board machine tnx

Posted by khedidja elmestari 9 months ago

PCB Manufacturing

I was wondering if anyone knows a cheap place to get some PCB boards printed? I used ExpressPCB to create the board (first thing I found on the computer at work) and it's giving me a .pcb file. I assume this file-type is pretty standard? I tried using their built in pricing software, but it seems a little pricey for small quantities. Any suggestions?

Posted by randofo 10 years ago

PCBs (2)

I want someone to make me two PCBs, I am willing to pay you and shipping. I can get many different file types, and Drilling is preferable but not required, will pay extra. If anyone wants to be a giant help, you could do it for free?

Posted by 16zzundel5 8 years ago

Low cost PCB service !

Just had a flyer through from these guys http://ragworm.eu/ VERY low cost PCB making - around 6 USD/sq inch for double sided plated holes -  and they have very liberal design rules, so they'll cut boards to weird shapes too Looks like free UK shipping, I don't see what they are saying about international orders.  Steve

Posted by steveastrouk 5 years ago

Help With Eagle PCB Layout

Hello All. I'm trying to etch a board created in Eagle.  2 Questions: When I export the image, the "plastic part" of the pin headers on my board are showing up in the exported image. Is this image really "doable" using a toner transfer method due to the thin clearances and trace widths? Exports of the schematic and board images are attached. Thanks! Cam

Posted by evilknot 8 years ago

I need some PCB help

I'm trying to help a friend make a PCB for a project of his, but I've never made one myself. Using westfw's design rules in Eagle Free Edition, the board is riddled with jumpers, but there are only three with the default-width traces. I ask you, O wise Instructables community, what should I do?We were going to use the iron-on laser printer resist method, but that won't work if it is too sloppy to make thin traces. How thin can the traces be made with this method for a beginner? We also are considering using this film, in hopes that it will be a little easier to use...does anyone have experience with it?The other option that comes to mind is transferring everything to ExpressPCB instead of Eagle, in an attempt to make a bigger board that could use bigger traces.

Posted by CameronSS 9 years ago

Making/Modifying a USB Hub

I'm currently designing an accessory for my computer which will house 4 USB ports as a USB Hub.  The issue i've got is I need to be able to contain the whole USB Hub in an area that is only 22mm deep and 170mm wide.   I've taken a cheap USB Hub apart to see what it was like and I have run into a few issues. The main one is that the total depth of the PCB to the end of the USB Ports is 35mm, 13mm over the size I need.  The next issue is that I need room to place a screw between the USB Ports, 2 either side.  These screws have a width of 3mm and a head size of 5mm.    Putting a hole like that in the PCB would break and short the connections. Does anyone have any suggestions?

Posted by K20Evo 5 years ago

Long Range Locators Metal Detector

I'm Looking to build of long range locators for search gold. Please help me with an idea to pick which is a good kind of instructables match for device-search coil/ antenna, transceiver, frequency meter/ counter, vibration, light led, radar, and gps. I'm looking to forward hearing from  someone as soon as possible...!!!

Posted by Jasun 3 years ago

Long Range Locator Metal Detector

 I'm looking to build of long range locators for search of gold. Please help me with an idea to pick which is a good kind of instructables match for device-search coil/ antenna, transceiver, frequency meter/ counter, vibration, light led, radar, and gps. I'm looking to forward hearing from someone as soon as possible...!!!  

Posted by Jasun 3 years ago

Printing a circuit on clear plastic?

Hi Guys Inside most modern keyboards, you find a rubber membrane that presses a sandwich of three layers of plastic, with the upper and lower parts having circuits on them that make the contact. Is it possible to 'print' this type of circuit at home on standard laser or inkjet printers?  I could use Amanda's method with bare conductive ink, but printing would be better. Any info appreciated ;)

Posted by wizer 4 years ago

PCB Repair Process of 3 different kind of circuits

1 Power Supply Circuit: During the circuit board repair process, power supply part should be inspected at the first hand and then come to the other part. +/-5V, Power supply failure can occur under below several situation: (1) NO power supply voltage or power supply voltage is deficiency, NC system is often used +/-5V, +/-12V, +/-15V and +/-24V, a few of them use +3.3V, and the varied or unstable voltage of power supply will cause the system working impropery; (2) Use voltmeter to test the voltage of power supply, and the result show is normal. Voltage waveform detected by oscillograph has shown the existence of big ripple. This situation maybe caused by open circuit of Filtering capacitance, bad rectifier diode or cold soldering, but sometimes it could be caused by an overloaded component which has been brokendown and damaged by power. (3) System can run properly when it is just being opened, after a while of operating, the voltage begin to drop off. This is usually caused by voltage stabilizing circuit and large power triode. (4) The voltage decrease accompany with temperature increase maybe cause by component cold soldering, it is electrical connection can be affected negatively when the temperature high up. (5) NO power supply voltage or supply voltage decreases significantly will cause the system to interrupt or stop working, this fault can be detected and spotted easier. (6) When the capacity of power supply load drop off or filter circuit become invalid, it will cause the system halt suddenly, this situation which is very difficult to justify can bring damage to the equipment and facility even get personnel wound. 2 Clock Circuit: Clock circuit mainly exist on the systematic motherboard, it is the foundation of large-scale integrated circuit system through which it can work, it can generate the constant square signal in the circuit base upon the crystal oscillator (commonly known as crystal), Once the crystal oscillator stop working, it is same as the heart of human being stop beating, the whole system will fall into the status of paralyzed, only after crystal can work under normal condition, the systematic circuit can operate under the command of CPU according to the frequency of crystal. The number and frequency of the crystal could be different due to the variety of numerical control system, but generally will at least one crystal, different clock frequencies required by the other circuit can be solved by frequency dividing circuit or other crystal. Crystal possess a higher rate of failure or damage, below are some malfuntions of crystal: (1) Leakage: Use multimeter and switch to P*10K level to test it, if the resistance is infinite, then it can be viewed as normal; (2) Internal OPEN CIRCUIT: Value of resistance is infinite tested by Use multimeter, can fail to generate oscillating pulse in the circuit; (3) Alternative crystal: Due to the transformation of crytal will cause its internal parameter change which can only be detected by osillagraph or cymometer. Although the crystal can still has oscillation, but the clock frequency is deviated from its nominal value, and the still existing oscillation pulse can’t make system circuit work properly due to the value of oscillation is wrong. Only cymometer can test its tolerance now. (4) In clock circuit, the both ends of crystal would be connected to ground by one ceramic capacitor value range from several picofarads to tens picofarads, failure of the clock circuit result from this capacitor leakage, deterioration is also more common. The best tool to test whether the crystal is good or bad could be oscillagraph or cymometer, multimeter is very difficult to detect the root cause. 3 Reset Circuit Reset circuit also exist in the circuit system of motherboard, it is unique set of large-scale digital integrated circuit. Microprocessor and interface circuit are all possess reset terminal. Reset pulse generate by reset circuit will clear the progam counter, force CPU recall the orginal files from the memory, execute initiation process on all the controller chips, system will occurs the phenomenon of disorder or crash as a result of faulty reset circuit, the method of using cymometer to illustrate the reset pulse is turn on/off power supply repeatly, observe and record the pulse value at the right moment of power supply on/off since it should be the normal square wave-form. If there is no existence of reset pulse, all the resistor, capacitor and transistor in the reset circuit should be detected. The reset terminal of integrated circuit should be regular low or high electrical level, or else, it is probably the malfunctional reset circuit or damaged integrated circuit.http://www.circuit-engineering.com

Posted by circuiteng 7 years ago

Aurora 9 bar Kit & Custom PCB Prices Reduced!

Aurora 9 bar kit & PCB prices are reduced! The kit is now $25, and the PCB is now $7.50. Take advantage of the new pricing. For the detailed information about the kit and the PCB please see this post. (https://www.instructables.com/community/Aurora-9-bar-Custom-PCB-for-Sell/) Thanks!

Posted by ledartist 6 years ago

Aurora mini 18 Kit and PCB Back in Stock!

Aurora mini 18 Kit and PCB are back in of stock now!!! Thank you for waiting! Click here for the details.

Posted by ledartist 6 years ago

Is There an Etchant-Resist That Can Be Left On PCB As Insulator?

Howdy is there a kind of resist that can be left on the pcb after etching (except the solder points), as an electrical insulator? can it be used with the photo-etching method, or only heat? thanks

Posted by johnyradio 6 years ago

PCB design and cicuit simulation software

Hi all first post here could someone recommend a good software package for PCB and circuit design and simulation on a budget preferably compatible with windows vista and 7 and with CNC capability (looking to build one in the future)

Posted by pmills4 5 years ago


I noticed that there was a software that was called Eagle PCB design software but it costs money while there is a version that is free. It appears to me they can do the same thing so, why is the PCB design software $49 but the regular software free?

Posted by blinkyblinky 6 years ago

Does anybody know a good way turn old scanner bed into PCB exposure source?

Does anybody know how I can turn my old scanner bed into pcb exposure source?

Posted by treichhart 7 years ago

Strip board or custom PCB

I'm writing an article that gives detailed instructions on how to build a simple electronic gadget. What I like to know is would you prefer to see the gadget built step by step on strip board or a custom PCB? I would normally just get a custom PCB made and they look neat in photos but if I use strip board people don't have to go to the effort and can get all the bits they need from an electronics store. Just seeing what people think.

Posted by rarebeasts 8 years ago

Arduino PCB Board Layouts

I thought I might share some the circuit board layouts (Top and bottom) of several Arduino boards that I've created. They could be used to etch your own board or just used to compare sizes. I created them from the eagle files provided from the Arduino website and exported each layer in monochrome with help from this Instructable. Automating Eagle export and preparing it for printing by truhlik_fredy To create your own PCB layout on eagle i found this Instructable was the most helpful Turn your EAGLE schematic into a PCB by westfw Download Eagle for free here The File is available as an Adobe Illustrator file and as a png

Posted by MrSirLRD 3 years ago

Any way to fix delamination?

As you can see from the image, I accidentally ripped off a copper pad on my PCB. This is my first time really soldering anything, so I somewhat expected it, but still... Is there any way to fix it? I can't really seem to find too many solutions. 

Posted by The Manic Puppeteer 3 years ago

A Beginner’s guide to making an Arduino Shield PCB

So you’re pretty fond of your Arduino. You make blinking lights, and beeping noises. You’ve made a robot that was pretty cool. Or maybe you didn’t. Who cares, You’re ready for the next step. You want to extend it. Although you can just plug in wires, there’s something very appealing about making a shield. Instead of a rats-nest of wires piled about and plugged into your prototyping breadboard, you can have a nice clean shield with labeled connections and a smaller footprint. So here I’m going to tell you everything you need to know to make a schematic and PCB layout, and get a beautiful shield that will plug into the top of your Arduino For More Check Out this blog.

Posted by frenzy 8 years ago

Talking Meat Thermometer - Circuit wizard help

Hi everyone  I am doing a project in university and i wanted to make a talking thermometer which told a blind person what temperature the meat was.  At the very best i wanted it to have different functions for chicken, beef and pork. (So they can cook a medium steak and then a safe temperature for chicken, although the temp for chicken and pork is above that of a beef so maybe i can fit it into one chip. i dunno) I have to make the PCB myself so i was just looking for any help on how i may do it (maybe a mix of a home made pcb and arduino) Any any tips or advice i may need  Thanks  Michael 

Posted by abro100 4 years ago

Aurora mini 18 Kit and PCB

*** Back in of stock now!!! Thank you for waiting! *** The kit is also available at $29. All parts except Molex connectors and power supply are included. Shipping is $5 for USA, $17 for the rest of the world. Kit Contents (as pictured) 1x PCB 1x 10k Ohm (0603) 3x 220 Ohm (0603) 3x 2.2k Ohm (0603) 18x 150 Ohm (0603) 2x 0.1uF (0603) 2x 10uF (1206) 3x MMBT2907A 1x PIC24FV16KA302 (SS) 19x Tricolor LED (common-cathode) 1x Tactile Switch Notes The PIC microcontroller is not pre-programmed. You need your own programmer such as PICKit 3, ICD 2, ICD3 to program the PIC microcontroller. (PICKit 2 does not work) The kit is also available with water clear LEDs instead of diffused type shown. Please specify if you want water clear LEDs (Special: $1 less for the water clear LEDs). The kit comes with one extra LED. Power connection cable (see the picture) - optional is available at $2 extra. PCB only Aurora mini 18 custom PCB price is $9.50. Shipping is $5 for USA, $17 for the rest of the world. To purchase please go to my site - http://www.theledart.com/blog/archives/category/kits Please view my Instructable for the detailed information on Aurora mini 18. Contact me if you have any questions. <br>

Posted by ledartist 6 years ago

CAD for Circuit Boards

What software do you use for designing circuit boards? Do you like it? I've been using Eagle, but have been entertaining the idea of switching it up.

Posted by randofo 9 years ago

ethernet cards

I have an abundance of old network cards for pc, alot of which have removeable chips.  Are those things good for anything?  Some of the cards are pci and some are old isa cards.

Posted by kithso 5 years ago

Need a good digital project

I just finished making a digital clock on a 5x8 board using just basic CMOS chips. Does anyone have a reommemdation for another digital project? I'd like to keep it comprised ofmcmos or basic chips for now.

Posted by Mattosx 5 years ago

How to salvage SMD component from old electronics board

I want to know how to perfectly desolder a smd Component. I  want to reuse them but cant get them i would love suggestion or advice

Posted by geekrex 3 years ago

Aurora 9 bar Kit & Custom PCB for Sell

Aurora 9 bar Kit and PCB are now available for sell. ******* Prices are reduced ******* Aurora 9 bar custom PCB price is $7.50 + $2 shipping for US address. The kit is also available at $25 + $5 shipping for US address. All parts except Molex connectors and power supply are included. Kit Contents (as pictured) 16x 120 Ohm (0603) 21x 1k Ohm (0603) 1x 10k Ohm (0603) 2x 1uF (0603) 1x 10uF (1206) 1x AP7333-33 or AP7313-33 (3.3V linear voltage regulator) 3x MMBT2907A or equivalent PNP transistor 12x MMBT2222A or equivalent NPN transistor 1x PIC24F08KA101 (SSOP) 10x 5mm Tricolor LED (common-cathode) 1x 5-way Tactile Switch Notes The PIC microcontroller is not pre-programmed. You need your own programmer to program the PIC microcontroller. The kit is also available with water clear LEDs instead of diffused type shown. Please specify if you want water clear LEDs (Special: $1 less for the water clear LEDs). The kit comes with one extra LED. Power connection cable (see the picture) - optional is available at $2 extra. (International shipping is $17) To place an order, please go to my blog page - http://www.theledart.com/blog/archives/233. You will find purchase buttons. Please view my Instructable for the detailed information on Aurora 9 bar. Contact me if you have any questions. <br>

Posted by ledartist 7 years ago

Thumbnails and Previews for Attached Gerber Files

It would be really nice to automatically create thumbnail images and renderings of gerber files attached to electronics projects (e.g. output from EAGLE, Pads, OrCAD, etc.). And, I can help make it happen.I would be happy to hook-up Instructables with my website's API for generating renderings of gerbers. Have a look at http://www.circuitpeople.com to judge its capabilities. Behind the web UI, I have a SOAP API available for "side-loading" files, and I host the images (but you're free to copy and save them), so it should be zero-overhead for Instructables.com's servers.He's a sample: http://www.circuitpeople.com/ViewPackage.aspx?id=7c92e072-fe08-4522-8b47-f7d2c898368cDrop me a line if this sounds good. I'm sure the readers (and authors) would enjoy it.Thanks,Lee

Posted by circuitpeople 10 years ago

How can I open .pcb files in eagle?

Someone sent me a .pcb file to look at but all I have is eagle, is there anyone here who knows how to open .pcb files in eagle? Thanks.

Posted by l0cke 10 years ago

Where custom PCB sample?

I designed a circuit, need to customize a printed circuit board (PCB) example of fine workmanship. I need only 4 to 6 layers PCB Prototype, cost-effective than http://pcb.hqew.net/? S = 544849 is higher places to recommend? http://pcb.hqew.net/?s=544849 Good friend recommended place, sharing resources. In my circle, PCB manufacturer resources is not much, hope that we share a lot of you like a good PCB manufacturer resources. Thank you very much!

Posted by yanhua 4 years ago

printer pcb

I have a couple of laser printers i no longer use is it possible to convert them to print directly onto a flat surface like a pcb and skip the whole iron transfer process that never works right?

Posted by pattyshaw 6 years ago

Where to get purple UV inks for PCBs?

Hi all! If someone knows, please share the info on where to get purple PCB ink. Or maybe dry film (solder resist)? I'm searching the Internet, but I'm not having any luck. It looks like I'll have to mix it by hand by combining blue and red..

Posted by tlakic97 3 years ago

Use a 3d printer for etching PCBs?

Here's an idea - would it be possible to use a 3D printer to lay out the etch resist on a PCB?  It would likely only need to print a single layer.  Of course you'd need to use a material that would resist the ferric chloride but could also be removed without leaving a residue. Thoughts???

Posted by jeff-o 6 years ago

solder mask

Is a solder mask just pcb laquer? like you could make your own solder masks?

Posted by guyfrom7up 10 years ago

Remove copper from a PCB without dissolving it?

I have a bunch of old PCBs laying around from various electronic projects, things I took apart and re-purposed, etc...Seeing as copper is roughly $0.25 per ounce, I would like to remove the copper from these PCBs, and sell it to a local coin shop that buys various scrap metals. I plan on sanding the solder mask off first, but after that, I don't know how to remove the copper from the fiberglass. Maybe just electroplate it onto another piece of copper? Please give me suggestions, thanks!

Posted by metrogdor22 7 years ago

electronic diagram to pcb

Hi i need anyone that can help me with this diagram,i think its okay,at least thats how i have it in a breadboard and it works,basically its a 555 timer delay on (5secs) and then the buzzers beeps reallly fast,seems simple but one bad conection and it wont work when the pcb arrives,(it happened already,)the not conected pins seems crazy maybe but it works i have everything in breadboard,i hope someone can help me please thankss have a great day :)))

Posted by NelsonN2 2 years ago

SMD Soldering without Soldermask?

I'm working on a project and I needed to get a PCB made. I was planning on getting it from BatchPCB, but I ran into a little problem... I'm using a NAND Flash chip, which is TSSOP48; the footprint has 6mil spacing! (BatchPCB has a 8mil minimum) The next cheapest solution would be Barebones PCB, which makes prototype PCBs without soldermask & silkscreen. I'm worried about soldering on the Flash chip, and another LQFP48. Will the lack of a soldermask make it impossible to do?

Posted by zachninme 9 years ago

Can someone give my PCB design a once over before i etch???

Hi everyone, hoping someone can help me here. I have designed a pcb in expressPCB and was wondering if someone with a bit more knowledge and experience could give it a once over for me.  I just want to be sure there are no errors before i go away and etch this. The design is based on a 30 channel ambilight tutorial that is here on instructables.  It uses two TLC5940 chips that are connected to an arduino.  I have left the arduino pins on the design unlabelled as they connect slightly different on each arduino (mine is a mega 1280). Here is the design.  Please be gentle, i am just starting out with pcb design and have no breadboard at the moment. :)

Posted by maddoc666 6 years ago

Popular 2 pin power connector for PCBs?

I have made a prototype PCB board which requires connection to a 9V battery or a wall-wart. The board is very small and doesn't have much extra space. I'm currently using a female header(as used in arduino) with 2 pins broken off into which I'm plugging in the wires from battery. In the final board, I want to be using some connector which is widely available, and PCB friendly. The one which I have most commonly seen being used is the wall-wart female power jack which is way too big for my requirement. Any popular option which is only slightly bigger than a snipped female header? -Antzy

Posted by Antzy Carmasaic 5 years ago

PCB Trace Width Questions

Hello instructioners, So i am working on a PCB to use my XBOX 360 power supply as a standard 12volt 16 amp without hacking it apart. I've taken the female plug from a dead Xbox and I've recreated the layout in ExpressPCB. my only issue is being that its 16 amps @ 12volts is the trace widths to hold that much power are ridiculously wide we are talking 7mm or there abouts. I used several different online calculators to determine trace width.  My question is..  how small can i get away with for traces and still get 16amps.. is there a way of bridging the front and back side of a 2side PCB to allow for more amperage on smaller traces? i am really at a loss here. since my PCB is set at 38mm by 38mm and the connector size is 27mm long by 23mm wide. with 7mm wide traces i can't connect all the power pins together and all the ground pins together and route them out. Now i realize the 16amps is max draw but i'd like to plan for a max draw situation that way i feel confident enough to not have to check it all the time to make sure its not melting. Below is an image of the current board in Express PCB the labeled Thru-hole are connections i will need to make for this all to work. the other remaining holes are for mounting the female jack securely. The three yellow boxed connections are 12v+ The three greyed boxed connections are gnd ENG is bridged to +5 to make the XBOX PSU provide 12v

Posted by jgosselin 6 years ago

Blue Series 12A ESC schematic drawing (or layout)

Hi, all. These days, I plan to DIY a drone. In the drone, I want to make a PCB which integrated control unit, ESC, Gyro, barometer, and etc. Specially, I want to use blue series 12A ESC as that on my drone. As all of us know taht the blue series 12A ESC can be flashed by BLHeli by myself. However, it is difficult to find the schematic drawing(Eagle file, althium file, or PCB layout) of the ESC. So, could anyone give some help about this? Thanks in advance.

Posted by 373996214 1 year ago

Instructable on electroplated circuit boards?

I managed to plate a copper trace onto piece of acryllic today, to test out a process for easily and cheaply making (and possibly editing/repairing) custom PCBs. The adhesion appears to be good for surface preparation used so far, and a nice thick track has formed. So, would it be worth uploading an instructable once the process has been refined a little (or enough to make simple boards properly)? Any questions, feedback or comments would be appreciated.

Posted by The Skinnerz 6 years ago

Printed circuit bards

I was wondering if I can print my circuit design onto acetate and use it to expose my circuit board. Would that work? If not what could I do instead of of ording them for rediculous prices online?

Posted by pattyshaw 6 years ago

Product Designers & Engineers UK

Hi everyone! I’ve got a project underway and I’m at the stage of looking for product designers and engineers based in the UK, preferably in the South East. I’ve posted in the “Wanted” section of the forums as this wouldn’t initially be paid, more of a collaboration to start, with the goal of turning it into a realistic product/business. Looking for people who have an understanding of (what I believe would be) advanced PCB design, setting up basic SoCs, with a view for mass production. If anyone has any advice on where to find people with these skills, or knows anyone who would be interested, any help would be greatly appreciated! Kind regards, Mike

Posted by Everlong 3 years ago

FREE Schematic publisher(also includeds breadboard and PCB view)IN ALPHA

I did a search and didn't see it on this site anywhere, but I see a huge need for a number of the members here to be able to draw schematics and even simulate a breadboard or PCB. This software is free(but it is still in ALPHA testing). I have no affiliation with this site so I can only answer questions about usability from my opinion. For what a lot of people need on this site to help make "instructables"  that have electronic curcuits in them I think this is perfect. Especially if you can't afford high dollar software, plus if you're not an electronic engineer this software will teach you proper terminalogy and proper drawing designations as well. From what I know, all parts on the program are editable. So if you need a green 3.6v LED you can edit the one that comes default on the program and save it in your tool kit and use it for another project later. Hopefully everybody sees this. If the Mods know of a place to put this where it may be more accesible and visible to everybody here, please move it. Here's the link to find the software. They have it for Windows, Mac OSX, Linux 64 and 32 bit http://fritzing.org/download/ Enjoy PS, don't forget this software is in Alpha, so contact the devs and tell them if you have problems or you'd like to see changes

Posted by navyredman 8 years ago

Whats your favorite way to make PCB`s?

Whats your favorite way to make PCB`s? i personally like direct etch with direct etch decals, gives good, reliable results.

Posted by newwarhammer2 6 years ago