Diy

A time-delayed alarm is a useful device that can be used in various scenarios, such as security systems or to remind you to close the freezer properly. The alarm is triggered after a certain amount of time has elapsed, providing a delayed response. In this article, we will discuss the design of a time-delayed alarm using two NE555 timer ICs and some passive components. The NE555 timer IC is a popular integrated circuit that can be used in various applications, including timing and oscillation, both will be used in this design.

Jan 3, 2024

The main subject of this post is a cheap Chinese import router, commonly referred to as “6040 CNC”, owing it’s name to it’s x/y travel distance of 60/40 cm. This kind of router is sold in multiple, slightly different configurations using either 0.8 kW, 1.5 kW, or 2.2 kW high-frequency spindle, commonly called “China spindle” in various internet forums. There are also different sizes with similar construction available. My machine was bought in the summer of 2020, yours might differ from mine. The machine is designed to cut and engrave plastics like acrylic glass and softwood. This machine is not designed to cut metal and doing so I would consider abuse. This is not to say that it can’t cut it at all but you won’t have much fun doing so. On Youtube, you will regularly see videos of the sort “Cheap machine cuts metal!”, but this is much less cutting than it is grinding. Given a butter knife, even I myself could “cut” a soft metal eventually…

May 1, 2020