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9 Aug 2013

Ready1

DIY Goodies show us a way to make flat vias for your PCB projects. diygoodies.org.ua writes:

Catching up the development of printed circuit boards at home i often faced with the problem of “the bulbous” vias. Usually homemade double-layer boards soldering from both sides with the thin wire, the result usually satisfied but if you need to make VIA under the chip TQFP48, SOIC16 and that’s is a real problem, if contact is very bulbous it will be simply impossible cleanly solder chip as its legs will hang in the air.

DIY PCB with flat VIA’s - [Link]

6 Aug 2013

grbv-teaser-600x450

Jérôme Vuarand developed an application to visualize Gerber data, a simple 3D viewer for Gerber files. This tool helps to review Gerber files before sending them to a PCB fab house:

Over the course of the last 5 months I developped an application to visualize Gerber data. The goal was primarily to review Gerber files before sending them to a PCB fabrication house. It is very similar to the Mayhew Labs online Gerber viewer, except it’s offline (and has a few different features).My tool is program for Windows (32bits or 64bits) that use OpenGL for visualization (you will need a decent/recent video card). You can simply drag and drop Gerber files on it, or use the command line to configure it more deeply. I set up a page explaining most of that and giving download links

[via]

Simple 3D gerber viewer - [Link]

 

24 Jul 2013

FIQ16GWH4VQR39H.LARGE

cpeniche @ instructables.com writes:

This Instructable is about dry film solder mask, in other words, is the green stuff that is on top of the circuit board.
I like to use smd components in my circuits board because I don’t have a computerized drill machine and do in it by hand for a big
boards are really tedious.

Soldering smd components in a copper board without dry solder mask, especially for those little capacitors and resistor of 402 in size, becomes a tough challenge and of course those micro controllers with almost zero space between pins.

Dry Film Solder Mask - [Link]

21 Jul 2013

F2Y5YUNHAUNNH56.LARGE

cmiyc @ instructables.com writes:

Creating a solder paste stencil for a toaster reflow oven or hot plate is simple when you have access to a laser cutter. I used the Laser Cutter at my local TechShop to create this and other PCB stencils.

This Instructable assumes you have created a PCB and are able to generate the Gerber Files for it. Specific directions will be given for EAGLE, but other PCB software can be used. The board used in this example is an Arduino RTC Shield based on the DS3231. Follow the link for the EAGLE design files if you want to follow along.

Polyimide (Kapton) PCB Solder Paste Stencil - [Link]


18 Jul 2013

FY4YVWSH0A00I1C.LARGE

alexglow @ instructables.com writes:

Note: By “beginner’s guide”, I mean a guide written by a beginner. (I made it at TechShop SF, during my first weeks!) I have some technique tips to share, but for more in-depth questions, Google is your friend.

Solder paste allows you to populate a board with many tiny components, without straining your eyes and fingers. Using minuscule components saves space, and you can dramatically cut down the space between them when you don’t have to solder every connection by hand.

Beginner’s Guide to Solder Paste - [Link]

17 Jul 2013

F2VIVQ0HIWHR2WJ.LARGE

steveastrouk @ instructables.com writes:

This is useful tip for anyone making or using surface mount components on PCBs. It relies on access to a laser cutter, so if you don’t have one, look away now….. I cut a plastic stencil on the laser, align it with the PCB pads and then squeegee a thin layer of solder paste through the holes. Peeling away the stencil will leave a perfect pattern of pads with the correct amount of solder on each one. I have just successfully used this process on components with a 0.025″ pitch (0.65mm) – that’s VERY small,

Soldering stencils for DIY circuit boards - [Link]

2 Jun 2013

pcb

By: Alex Danovich,President San Francisco Circuits

We live in an exciting time where we see a resurgence in electronics as a hobby. Mass production has wiped out a generation or two of kids learning to build radios from scratch with their mom or dad. In the good old days, not sure when, you had companies like Heathkit walk you through building a full size color TV at home, for example. “Yes, I made that!” you’d proudly exclaim to yourself after hours of work.

What’s causing this hobbyist resurgence?

  • Television shows such as How it’s Made, Mythbusters and other programming on TLC.
  • Websites such as instructables.com, hackaday.com, and specialized hobbyist blogs.
  • Interest in RC cars, robotics, gaming, computers etc.
  • Advent of Arduino boards, modules and free software.
  • Open source software/hardware.
  • The whole maker movement in general.

 

So what does this have to do with making circuit boards? Read the rest of this entry »

30 May 2013

7ef70156d314e1865a5e046b8a589a17.media.600x398

via avrs-at-leipzig.de:

FluxProbe is a test prod for measuring currents without touching the conductor it is flowing through. More acurately it is measuring the magnetic flux. This way you can measure currents on PCB traces without having to put a resistor in between. This test gear enables you to trace faults in your PCB (for example search for a short circuit). This is usefull for commissioning of you circuit for example.

FluxProbe – measure currents without touching the conductor - [Link]

21 May 2013

docu-front

Philip designed a simple component size and silkscreen reference board:

since I kept checking old projects to figure out which silkscreens worked, and which didn’t, I made myself a simple reference board. I also included some common SMD component sizes, just to keep me from thinking 0402 was a viable default size.

[via]

Simple silkscreen reference board - [Link]

2 May 2013

figure-1-components-with-bottom-only-terminal-leads

Tom Hausherr’s blog is dealing with component package technology and libraries standards and providing lots of great and clear information. If you are designing your own libraries for your next project you definatelly have to check it out!

Tom Hausherr’s Blog - [Link]



 
 
 

 

 

 

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