Collaborate Disseminate
A word of caution if you’re planning to try this cryocooler method for making liquid nitrogen: not only does it involve toxic and flammable gasses and pressures high enough to …read more Continue reading Low-Cost Cryocooler Pumps Out Cheap DIY Liquid Nitrogen
What if you have a need for liquid nitrogen, but you do not wish to simply order it from a local supplier? In that case you can build your very …read more Continue reading A DIY Pulse Tube Cryocooler in the Quest For Home-Made Liquid Nitrogen
Since their relatively recent appearance on the commercial scene, rare-earth magnets have made quite a splash in the public imagination. The amount of magnetic energy packed into these tiny, shiny …read more Continue reading Iron Nitrides: Powerful Magnets Without the Rare Earth Elements
If you’ve ever welded, you know that some welders blow a shield gas over the work for different reasons. For example, you often use a gas to displace oxygen from …read more Continue reading A Nitrogen Soldering Iron Review
We’ve all heard of the Fisher Space Pen. Heck, there’s even an episode of Seinfeld that focuses on this fountain of ink, which is supposed to be ready for action …read more Continue reading The Astronomical Promises of the Fisher Space Pen
[Lucas] over at Cranktown City on YouTube has been very busy lately, but despite current appearances, his latest project is not a welder. Rather, he built a very clever gas …read more Continue reading Clever Gas Mixer Gets Just the Right Blend for Homebrew Laser Tubes
When we see a CO2 laser cutter build around these parts, chances are pretty good that the focus will be on the mechatronics end, and that the actual laser will …read more Continue reading Scratch-Built CO2 Laser Tube Kicks Off a Laser Cutter Build
To say that a lot has happened in the year since the COVID-19 pandemic started is an understatement of epic proportions, so much so that it may be hard to …read more Continue reading A Simple but Effective High-Flow Oxygen Concentrator from Hardware Store Parts
Normally, we think of lasers as pretty complex and fairly intimidating devices: big glass tubes filled with gas, carefully aligned mirrors, cooling water to keep the whole thing from melting …read more Continue reading The Devil is in the Details For This Open Air Laser
Sometimes the decision to tackle a project or not can boil down to sourcing parts. Not everything is as close as a Digi-Key or Mouser order, and relying on the availability of surplus parts from eBay or other such markets can be difficult. Knowing if and when a substitute will …read more
Continue reading No Doorknobs Needed for This Nitrogen Laser Build