Making High Concentrations Of Hydrogen Peroxide At Home
WEB1 gallon of 3% ~= 12 oz of 30% ~= $12 1 gallon of 30% (which is about the smallest you can get) ~= $45. So if you want a gallon of 30% your choice is clear.
Getting Started With Aluminum Extrusions | Hackaday
WEBMay 25, 2021 · T-slot extrusions used to be somewhat mysterious, but today they are quite common thanks to their use in many 3D printers. However, it is one thing to assemble a kit with some extrusions and anothe…
STM32 Clones: The Good, The Bad And The Ugly | Hackaday
WEBOct 22, 2020 · Anatomy of a forgery. Good STM32 IC on the left, clone on the right, with extra dimples. Earlier this year, Keir Fraser posted an informative summary of some fake STM32F103 ICs as found on so ...
A Noob’s Guide To McMaster-Carr | Hackaday
WEBSep 13, 2017 · Let’s do a case study with some stock aluminum. Here, a 6061-T6 grade aluminum rod that’s 36-in. (914.4 mm) long and 0.25-in. (6.35 mm) in diameter will cost us $2.24 at Online Metals. On ...
QuickBASIC Lives On With QB64 | Hackaday
WEBFeb 22, 2018 · The QB64 Project. After searching around a bit, I found the QB64 project. This is an open source QuickBASIC development environment that is not only completely compatible with existing programs ...
RFID Reader Snoops Cards From 3 Feet Away | Hackaday
WEBNovember 3, 2013. Security researcher [Fran Brown] sent us this tip about his Tastic RFID Thief, which can stealthily snag the information off an RFID card at long range. If you’ve worked with ...
Threading 3D Printed Parts: How To Use Heat-Set Inserts
WEBFeb 28, 2019 · Let the weight of the soldering iron tool itself apply the gentle force needed to push the insert into position. Gravity should be doing most of the work here. This process takes about 10-15 ...
Build Your Own GSM Base Station For Fun And Profit | Hackaday
WEBApr 8, 2016 · There are legitimate privacy and legal concerns, but there’s also some fun tech in mobile cell-phone stations. Off-the-shelf Stingray devices cost somewhere between $16,000 and $125,000, far too ...
DIY Vaporizer | Hackaday
WEBNovember 11, 2010. Here’s a DIY vaporizer build. It uses a 30 watt Radio Shack soldering iron as a heat source that is regulated with a common dimmer switch. This is done by removing the ...
Open-Source Parametric CAD In Your Browser | Hackaday
WEBDec 25, 2016 · Only a few have been truly open-source, and even fewer have been both open-source and parametric. Parametric CAD allows you to create 3D models based on a series of parameters, such as defining a ...
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