multitool

7 Articles

Building A Custom Swiss Army Knife

December 21, 2024 by 8 Comments

The Swiss Army knife is the most well-known multitool, combining a bunch of functionality into a compact package. [Jeff Gough] decided to build a custom example featuring a selection of his favorite tools.

He documents the build in a video series on YouTube (see below). [Jeff] decided to take on the project as a gift for his mother after she’d mentioned she’d wanted a Swiss Army-style knife with a horse’s hoof tool and finished in the classic shade of British Racing Green.

[Jeff] starts by disassembling an existing knife, taking care not to damage it in the process. He then makes and installs multiple custom tools, including the aforementioned horse hoof tool and a RADAR/NKS key for opening disabled toilets in the UK. He even crafts a bespoke Philips head screwdriver, too. Finally, he assembles everything back together and gives the build a beautiful green finish.

A Swiss Army knife can be a neat gift, but it’s even nicer when it’s got a personal touch like this one. We’ve featured some other nifty multitools before, too. Not all Swiss Army knives actually contain a, you know, knife. No kidding.

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A pile of red Swiss Army knives, probably collected by TSA.

Introducing The Swiss Army… Tool?

May 9, 2024 by 152 Comments

You’ve probably used one for everything from opening packages to stripping wires in a pinch (because you know better than to use your teeth). We’re talking about the blade of the iconic Swiss Army knife. And while there are many different models out there, they all feature at least one knife among their utensils. Until now.

Citing pressure due to the increase in worldwide knife violence, the company announced that they’ll be releasing a new range of tools without blades. Carl Elsner, fourth-generation CEO of Swiss Army knife maker Victorinox, is also concerned about increasing regulations surrounding knives at sporting events and other activities. And he has a point: according to the UN’s Global Study on Homicide 2023 (PDF), 30% of European homicides were committed with some type of sharp object.

In an interview with The Guardian, Elsner spoke of creating more specialized tools, such as one for cyclists, who don’t necessarily need a blade. He also mentioned that Victorinox have a tool specifically for golfers, but we’d like to point out that it features, among other things, a knife.

It’s going to be a long time before people stop assuming that the skinny red thing in your pocket contains a knife, especially at the airport. What TSA agent is going to take the time to check out your tool? They’re going to chuck it in the bucket with the rest of them. Would you consider buying a blade-less multi-tool? Let us know in the comments.

Don’t have much need for a knife? Here’s a bench tool that has it all.

(Main and thumbnail photos via Unsplash)

How The Flipper Zero Hacker Multitool Gets Made And Tested

July 24, 2021 by 3 Comments

Flipper Zero is an open-source multitool for hackers, and [Pavel] recently shared details on what goes into the production and testing of these devices. Each unit contains four separate PCBs, and in high-volume production it is inevitable that some boards are faulty in some way. Not all faults are identical — some are not even obvious —  but they all must be dealt with before they end up in a finished product.

One of several custom test jigs for Flipper Zero. Faults in high volume production are inevitable, and detecting them early is best.

Designing a process to effectively detect and deal with faults is a serious undertaking, one the Flipper Zero team addressed by designing a separate test station for each of the separate PCBs, allowing detection of defects as early as possible. Each board gets fitted into a custom test jig, then is subjected to an automated barrage of tests to ensure everything is as expected before being given the green light. A final test station gives a check to completed assemblies, and every test is logged into a database.

It may seem tempting to skip testing the individual boards and instead just do a single comprehensive test on finished units, but when dealing with production errors, it’s important to detect issues as early in the workflow as possible. The later a problem is detected, the more difficult and expensive it is to address. The worst possible outcome is to put a defective unit into a customer’s hands, where a issue is found only after all of the time and cost of assembly and shipping has already been spent. Another reason to detect issues early is that some faults become more difficult to address the later they are discovered. For example, a dim LED or poor antenna performance is much harder to troubleshoot when detected in a completely assembled unit, because the fault could be anywhere.

[Pavel] provides plenty of pictures and details about the production of Flipper Zero, and it’s nice to see how the project is progressing since its hyper-successful crowdfunding campaign.

Flipper Zero Blasts Past Funding Goal And Into Our Hearts

September 2, 2020 by 22 Comments

There’s never been a better time to be a hardware hacker: the tools are cheap, the information is free, and the possibilities are nearly endless. But that doesn’t mean there isn’t room for improvement. The Flipper Zero was developed to make the world of hardware hacking even more accessible, and as of this writing, has officially ended its Kickstarter campaign after raising a staggering $4.8 million. To say the community is excited about this little gadget is perhaps an understatement.

So what does the Flipper Zero do that’s gotten everyone so worked up? Well, for one, it’s not so much what it can do as how it does them. Taking inspiration from the already popular pwnagotchi project, the Flipper Zero gamifies the normally rather mundane tasks of sniffing for 433 MHz signals and flashing EEPROMs with the addition of an animated dolphin that’s sustained by your hacking. If you want the little fellow to grow and be happy, you need to keep poking and prodding around at any piece of hardware you come across.

If you’re looking for a comprehensive list of features, that’s a little harder to nail down. Partially because the device has picked up a number of new tricks (such as support for Bluetooth and NFC) thanks to the fact it made better than 8,000% of its original funding goal, but also because it can be expanded with additional hardware and software which obviously won’t get developed until the community gets their hands on the core device.

But even the core functionality, demonstrated in the video after the break, is quite compelling. The Flipper Zero’s CC1101 transceiver chip (anyone else thinking of the IM-ME right now?) allows it to record, analyze, and play back RF signals from 300 to 928 MHz, meaning you can instantly take over remote control systems that aren’t using a rolling code for authentication. It can also read and emulate many different RFID cards, record and transmit IR signals, emulate a USB HID device and run programmable payloads, and act as a USB to UART/SPI/I2C adapter. All contained in a sleek and pocket-sized enclosure that looks like a proper cyberpunk hacking gadget.

We’re extremely interested in seeing what the community can do with the Flipper Zero, especially now that the extra windfall has allowed the team to create a formal Developer Program for people who want to help work on the core platform or produce add-on modules. After banking nearly $5 million, this will be the yardstick by which all other crowd sourced hacking gadgets are measured for years to come; let’s hope they make it count.

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Hackaday Prize Entry: ESP Swiss Knife

July 4, 2016 by 5 Comments

The best equipment won’t help you if you don’t have it with you in the moment you need it. Knowledge, experience, and a thick skin may help you out there in the mud of the hardware battlegrounds, but they can’t replace a multimeter, an oscilloscope, a logic analyzer, a serial console or a WiFi access point. [Arcadia Labs] has taken on the challenge of combining most of these functions into a single device, developing the Hacker’s equivalent of a Swiss Army Knife: The ESP Swiss Knife.

esp_swiss_knife_enclosureJust like a Swiss Army Knife is first and foremost a knife, the EPS Swiss Knife is first and foremost an ESP8266. That means it is already a great platform for any kind of project, and [Arcadia Labs] supercharged the plain ESP-12E module by adding a couple of useful features commonly used in many projects. There’s an OLED display, four pushbuttons, a temperature sensor, and a Li-Ion cell with a charging module to power the device on the go. A universal “utility socket” breaks out the ESP8266’s leftover GPIOs and the supply voltage for attaching further peripherals.

With the hardware up and running, [Arcadia Labs] went on with building a couple of applications to provide the functionality that would make the device earn its name. Among them is a basic oscilloscope, a digital NTP based clock, a thermometer, a WiFi tester, a weather station and a 3D printer status monitor. More applications are planned, such as a chronometer, a timer, a DSLR intervalometer and more. A protective 3D printable enclosure is also in the works. [Arcadia Labs] has been joining the Hackaday Prize 2014 and 2015 before and we’re glad to see another great build coming into existence!

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Little Helper: Open Source Hardware Hacker Multitool

December 25, 2015 by 27 Comments

We love a good multitool. There’s something seductive about knowing that if, for some reason, you need to saw down a tree on a moment’s notice, you have a tiny saw in your pocket. We also like electronic versions of the multitool: gadgets that serve a lot of purposes as you develop and debug hardware. One of the most polished-looking ones we’ve seen is [Phillip Schuster’s] Little Helper.

The open source gadget looks like an iPod (if an iPod had header pins sticking out of it). It has basic analog I/O capability, can generate PWM pulses, sniff I2C traffic, and do lots of other features. It is open source, so you can always add more capabilities if you need them.

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Multitool Alarm System

February 9, 2011 by 44 Comments

Here’s a way to make sure you don’t leave your Leatherman multitool somewhere. It’s an alarm system that will start a timer when the tool is removed from the holster. After five minutes the module beeps to remind you to put the tool back where it belongs. Annoying? Possibly, but if you’re not done with your work just press the reed leaf switch on the module to reset the timer. A PIC 12F683 handles the timing and generates the waveform for the piezo buzzer. Perhaps this could have been accomplished with a dual 555 chip like the LM556 (one timer for the countdown and another for the piezo waveform) but the PIC has power-down modes available that should make the button batteries last a long time.