When you get tired of flying a regular hexcopter why not kick things up a notch and install a stun gun on the thing to protect your property! “In the video above, CUPID (short for Chaotic Unmanned Personal Intercept Drone) takes down an intern. He doesn’t get up with ease.”
When you need to ensure your power supply is up to snuff a dummy load is often used when it isn’t feasible to test with the real load. You will often see this on a big scale when load testing emergency generators. Normally you would use a large resistive load that is air cooled by fans. Mikeselectricstuff demonstrates his array of resistive loads but for a new project he
When Oliver Krohn isn’t using an Arduino to control the temperature climate chambers he is soldering SMD parts on hot sand! I guess the skillet and toaster oven is not cool anymore. 🙂 He is using a bunsen burner to heat the sand but anything would work as long as you can get the correct temperature. Might be a little hard trying to follow the reflow curve of some
  If you still have a few floppy drives left over after making your Floppy Drive CNC machine have a look at making some music by making a Floppy Disk Jukebox!  “The overall setup is completly modular. Each floppy is connected to its own floppy driver (rrfdc), which in turn speaks I²C with the main board (rrcmd). On power-on the main board auto-discovers the connected floppies and adjusts the
In the average year I need to change 5 or 6 sets of locks. My usual practice is to purchase an inexpensive lock from the local hardware store and simply toss out the original lock and install a new one. This is normally cheaper and faster than having the locks re-keyed. The old lock can also be used in less secure locations if desired. I was thinking it might
When you walk through a factory full of automated machines that are doing repetitive tasks you will usually see a large metal electrical cabinet beside each machine. Inside that box will most likely be a PLC that is controlling the machine by monitoring inputs and controlling motors and valves. This all sounds fine until you look at the price of this equipment, $10 or $20K will get you a
Hobby King had a great plan to get people building big lifting copters. They call it the Beer Lift but water is used as a substitute although I am sure an equal weight of beer is weighting behind the scenes for enjoying after the competition. The last video isn’t a heavy lift but make sure you watch what happens at 2:20, that is some good flying!
