Collaborate Disseminate
Begun, the Spectrum Wars have. First, it was AM radio getting the shaft (last item) and being yanked out of cars for the supposed impossibility of peaceful coexistence with rolling …read more Continue reading Hackaday Links: July 7, 2024
We all know the Hollywood trope of picking a lock with a paperclip, and while it certainly is doable, most reputable locks require slightly more sophisticated tools to pick effectively. …read more Continue reading This Robot Picks Locks, If You’re Very Patient
The reciprocating engine has been all the rage for at least three centuries. The first widely adopted engine of this type was the steam engine with a piston translating linear …read more Continue reading Machining a Reciprocating Solenoid Engine
[Jan Derogee] pulled out his phonograph the other day to hear the 100+ year old wax cylinder warble of “It’s a Long Way to Tipperary”, but couldn’t locate the reproducer …read more Continue reading Reproducing a Reproducer: Servicing a Cylinder Phonograph in the Year 2021
Hydraulic components are the industrial power transmission version of LEGO. Pumps, cylinders, valves – pretty much everything is standardized, and fitting out a working system is a matter of picking the right parts and just plumbing everything together. That’s fine if you want to build an excavator or a dump …read more
Continue reading Finely Machined Valve Controls Miniature RC Hydraulics
Whether it’s wood, metal, plastic, or otherwise, when it comes to obtaining materials for your builds, you have two choices: buy new stock, or scrounge what you can. Fresh virgin materials are often easier to work with, but it’s satisfying to get useful stock from unexpected sources.
This CNC router …read more
Continue reading CNC Machine Rolls Up an Axis to Machine PVC Pipe
The movie version of lockpicking tends to emphasize the meticulous, delicate image of the craft. The hero or villain takes out a slim wallet of fine tools, applies them with skill and precision, and quickly defeats the lock. They make it look easy, and while the image isn’t far from reality, there are other ways to pick a lock.
This expedient electric toothbrush lockpick is a surprisingly effective example of the more brute force approach to lockpicking. As [Jolly Peanut] explains, pin tumbler locks work by lining up each pin with the shear line of the cylinder, which allows the …read more
Continue reading Hacked Electric Toothbrush Defeats Locks With Ease
You see a lot of pneumatic actuators in industrial automation, and for good reason. They’re simple, powerful, reliable, and above all, cheap. Online sources and fluid-power suppliers carry a bewildering range of actuators, so why would anyone bother to make their own pneumatic cylinders? Because while the commercial stuff is cheap, it’s not PVC and plywood cheap.
Granted, that’s not the only reason [Izzy Swan] gives for his DIY single-acting cylinder. For him it’s more about having the flexibility to make exactly what he needs in terms of size and shape. And given how ridiculously easy these cylinders are, you …read more
Continue reading Shop-Made Pneumatic Cylinders From PVC And Plywood
Every person who reads these pages is likely to have encountered a neodymium magnet. Most of us interact with them on a daily basis, so it is easy to assume that the process for their manufacture must be simple since they are everywhere. That is not the case, and there is value in knowing how the magnets are manufactured so that the next time you pick one up or put a reminder on the fridge you can appreciate the labor that goes into one.
[Michael Brand] writes the Super Magnet Man blog and he walks us through the high-level steps …read more
You can get pretty much any part you need online these days, but some specialty parts are a little hard to come by. So if your needs are esoteric, like tiny hydraulic cylinders for RC snow plows, you might just have to roll your own.
To be honest, we never really knew that realistic working hydraulics on such a small scale were a thing, but [tintek33]’s video below opened our eyes to a new world of miniature mechanicals. You’d think a linear actuator would be a fine stand-in for the hydraulic ram on a tiny snow plow for an RC …read more
Continue reading Mini Lathe Makes Tiny Hydraulic Cylinders for RC Snow Plow