Restoring A 100 Year Old Vice To Pristine Condition

We love our vices. They hold pipes for us to saw away at, wood while we carve, and circuit boards so that we can solder on components. So we keep them in shape by cleaning and greasing them every now and then, [MakeEverything] went even further. He found a 100-year-old vice that was in very rough shape and which was going to be thrown out and did a beautiful restoration job on it.

It was actually worse than in rough shape. At some point, one of the jaws had been replaced by welding on a piece of rebar where the jaw would normally go. So he made entirely new jaws from solid brass as well as the pins to hold them firmly in place. We applaud his attention to detail. After removing all the old paint and corrosion, he painted it with a “hammered” spray paint to give it a nice hammered look. Though when he made the raised letters stand out by applying gold paint to them using an oil-based paint marker, we felt that was just showing off. The result is almost too gorgeous to use, but he assures us he will use it. You can see his process, as well as have a good look at the newly revived vice in the video below.

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Hacklet 104 – Test Equipment Projects

Hardware hackers love their test equipment. There are entire forums dedicated to talking about multimeters, oscilloscopes, signal generators, and other common bench tools. At times it seems we spend more time talking about our tools than actually using them. For some, off the shelf equipment is never quite good enough. These hackers, makers and engineers design and build their own test equipment. This week’s Hacklet is dedicated to some of the best test equipment projects on!

test-tool-1We start with [Roman] and Handheld Electronic Test And Measurement Lab. [Roman] travels a lot, and often needs to bring a lab’s worth of tools with him. After suffering through several ‘random’ searches, he decided to design a simple tool that would cut down his packing, and not get him strip searched. The handheld lab packs a multimeter, low-frequency oscilloscope, data logger, waveform generator, and several other tools into a small package. The tool can be connected to a PC to display data and update settings. The on-board PIC24 handles all the hard work of taking measurements. Some careful analog design gives this tool 10 megohm of input impedance.

test-2Next up is [Jaromir Sukuba] with 10$ curve tracer. The only way to find out of that a transistor or diode really works as well as the data sheet suggests is to pull out your semiconductor curve tracer. Curve tracers are also perfect for matching transistors for projects like analog synthesizers. [Jaromir] built this quick and dirty tracer over the course of just two evenings. A dsPIC microcontroller runs the show, generating an IV curve by sending pulses through the device under test. Once the curve has been traced, the PIC displays the results on a TFT LCD module. The tracer is a bit limited with a max of 35V at 0.5 amps. Knowing [Jaromir] though, extending the range would only take another evening or two of work.

vlabtoolNext we have [Jithin] with A Versatile Labtool. This tool can do just about everything you could want – all in one box. From oscilloscope to frequency counter to multimeter to current source, and much more. Much like [Roman] up above, [Jithin] chose a Microchip PIC24 MCU as processing heart of his design. The Versatile Labtool connects to a PC via USB. If you’re not close to your PC, an ESP8266 module allows the unit to connect over WiFi. A PC isn’t required though. The on-board OLED is always available for quick measurements.

emtFinally we have [ZaidPirwani] with Engineer’s Multi Tool, his entry in the 2015 Hackaday Prize. [Zaid] started with the popular transistor tester codebase. He ported the code to his own hardware, an Arduino Nano and Nokia LCD. Making the port function required quite a bit more work than [Zaid] expected. He ended up going with a fresh repository and adding a bit of code at a time. Once everything was working, [Zaid] verified that his hardware design operated as expected with a good old-fashioned multimeter. Now that everything is working, [Zaid] is just about out of space on the little ATmega328. Next stop is a Teensy 3.2!


A special thank you goes out to [Jaromir Sukuba] for suggesting test equipment as the theme for this week’s Hacklet. You can find his projects and more on the new test equipment project list! If I missed your project, or if you have a suggestion for a future Hacklet theme, don’t be shy! Drop me a message on That’s it for this week’s Hacklet. As always, see you next week. Same hack time, same hack channel, bringing you the best of!

Bus Pirate firmware update (v.0c), JTAG and more



A few weeks ago we wrote about our Bus Pirate universal serial interface tool. We used the recent holiday to add some new features, like a JTAG programmer, macros, frequency measurement, and more. A major code reorganization makes everything easier to read and update.

Check out the a demonstration of the new features below. We’re compiling a roadmap and wish list, so share your ideas in the comments. You can also see how we used the Bus Pirate to read a smart card and test-drive an I2C crystal oscillator.

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