Category Archives: helix

Ohio man pleads guilty to role in $300-million cryptocurrency laundering service

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A 38-year-old Ohio man has pleaded guilty to his role in a cryptocurrency laundering service that moved some $300 million on behalf of dark web marketplaces and other clients, the Justice Department said Wednesday. Larry Dean Harmon admitted to running Helix, a popular service for concealing the source of bitcoin transactions, from 2014 to 2017. Helix allegedly worked with AlphaBay, a notorious $1 billion marketplace for hacking tools and drugs that security researchers recently warned could be coming back online. Harmon faces up to 20 years in prison and a $500,000 fine, according to the Justice Department. A lawyer for Harmon could not be reached for comment. As part of his plea deal, Harmon agreed to forfeit more than $200 million in bitcoin. After a multi-year investigation of Helix, U.S. law enforcement arrested Harmon in his hometown of Akron in February, 2020. The U.S. Treasury’s Financial Crimes Enforcement Network has […]

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Operator of bitcoin ‘mixers’ that served dark web markets faces $60 million FinCEN penalty

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The operator of two “mixer” or “tumbler” services that exchanged cryptocurrency for users on “the darkest spaces of the internet” is facing $60 million in civil penalties from the U.S. Treasury’s Financial Crimes Enforcement Network (FinCEN). The decision against Larry Dean Harmon, who operated the services known as Helix from 2014-17 and Coin Ninja from 2017-20, is the first of its kind from FinCEN against a bitcoin mixer. The agency said he failed to register both as money services businesses and violated federal obligations “to develop, implement, and maintain an anti-money laundering compliance program; and to meet all applicable reporting and recordkeeping requirements.” More specifically, Harmon failed to file suspicious activity reports for transactions within dark web markets, as required by the Bank Secrecy Act. “Mr. Harmon operated Helix as a bitcoin mixer, or tumbler, and advertised its services in the darkest spaces of the internet as a way for […]

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Open-Source Grinder Makes Compression Screws for Plastic Extruders Easy

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In a world that’s literally awash in plastic waste, it seems a pity to have to buy fresh rolls of plastic filament to feed our 3D-printers, only to have them generate yet more plastic waste. Breaking that vicious cycle requires melding plastic recycling with additive manufacturing, and that takes some …read more

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Bitcoin Tumbling Leads to Multicount Indictment

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Is the practice of tumbling or mixing bitcoin actually illegal? That’s a tricky question Larry Dean Harmon of Akron, Ohio, operated a company called Helix which, together with the DDW marketplace AlphaBay, operated as a market to permit people t… Continue reading Bitcoin Tumbling Leads to Multicount Indictment→

Police bust alleged operator of Bitcoin mixing service Helix

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The Ohio man is charged with running a Bitcoin mixer to launder over $300m—now worth $3.6b—on behalf of Dark Net crooks trying to hide out. Continue reading Police bust alleged operator of Bitcoin mixing service Helix→

A 3D-Printed Bowl Feeder for Tiny SMD Parts

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[Andrzej Laczewski] has something big in mind for small parts, specifically SMD resistors and capacitors. He’s not talking much about that project, but from the prototype 3D-printed bowl feeder he built as part of it, we can guess that it’s going to be a pretty cool automation project.

Bowl feeders are common devices in industrial automation, used to take a big pile of parts like nuts and bolts and present them to a process one at a time, often with some sort of orientation step so that all the parts are the right way around. They accomplish this with a …read more

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Desktop Radio Telescope Images The WiFi Universe

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It’s been a project filled with fits and starts, and it very nearly ended up as a “Fail of the Week” feature, but we’re happy to report that the [Thought Emporium]’s desktop WiFi radio telescope finally works. And it’s pretty darn cool.

If you’ve been following along with the build like we have, you’ll know that this stems from a previous, much larger radio telescope that [Justin] used to visualize the constellation of geosynchronous digital TV satellites. This time, he set his sights closer to home and built a system to visualize the 2.4-GHz WiFi band. A simple helical antenna …read more

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Helix Display Brings Snake Into Three Dimensions

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Any time anyone finds a cool way to display in 3D — is there an uncool way? — we’re on board. Instructables user [Gelstronic]’s method involves an array of spinning props to play the game Snake in 3D.

The helix display consists of twelve props, precisely spaced and angled using 3D-printed parts, each with twelve individually addressable LEDs. Four control groups of 36 LEDs are controlled by the P8XBlade2 propeller microcontroller, and the resultant 17280 voxels per rotation are plenty to produce an identifiable image.

In order to power the LEDs, [Gelstronic] used wireless charging coils normally used for cell …read more

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MIDI Guitar Pedals

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Ever since Jimi Hendrix brought guitar distortion to the forefront of rock and roll, pedals to control the distortion have been a standard piece of equipment for almost every guitarist. Now, there are individual analog pedals for each effect or even digital pedals that have banks of effects programmed in. Distortion is just one of many effects, and if you’ve built your own set of pedals for each of these, you might end up with something like [Brian]: a modular guitar pedal rack.

Taking inspiration from modular synthesizers, [Brian] built a rack out of wood to house the pedal modules. …read more

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