3D Printing Pills All At Once
To the uninitiated, it might seem like a gimmick to 3D print pharmaceuticals. After all, you take some kind of medicine, pour it in a mold, and you have a …read more Continue reading 3D Printing Pills All At Once
Author Archives: Al Williams
Less Is More — Or How To Replace a $25,000 Bomb Sight for 20 Cents
Depending on who you ask, the Norden bombsight was either the highest of high tech during World War II, or an overhyped failure that provided jobs and money for government …read more Continue reading Less Is More — Or How To Replace a $25,000 Bomb Sight for 20 Cents
Versatile Reflow Oven Controller Uses ESP32-S2
[Maker.Moekoe] wanted a single controller board that was usable with different reflow ovens or hotplates. The result is a versatile board based on the ESP32-S2. You can see a video …read more Continue reading Versatile Reflow Oven Controller Uses ESP32-S2
Reducing Warping in Metal 3D Prints
We are used to dealing with warping when printing with thermoplastics like ABS, but metal printers suffer from this problem, too. The University of Michigan has a new technology, SmartScan, …read more Continue reading Reducing Warping in Metal 3D Prints
Does Your Programmer Know How Fast You Were Going?
News reports were everywhere that an autonomous taxi operated by a company called Cruise was driving through San Francisco with no headlights. The local constabulary tried to stop the vehicle …read more Continue reading Does Your Programmer Know How Fast You Were Going?
Nixie Spectrum Display Has Seven Bands
A spectrum visualizer is always a fun project, but we really liked [Yannick99]’s take on it since it uses seven IN-13 Nixie tubes for the display. The tubes, of course, …read more Continue reading Nixie Spectrum Display Has Seven Bands
Arming with an OS
We see tons of projects with the infamous “Blue Pill” STM32 boards. They are cheap and plentiful and have a lot of great features, or at least they were before …read more Continue reading Arming with an OS
Hall Effect Module Knows Where Your Motor Is
If you have a motor and you’d like to know where the shaft position is, you are likely to turn to an optical encoder scheme. However, as [lingib] points out, …read more Continue reading Hall Effect Module Knows Where Your Motor Is
Blood Pressure Cuff Hacked into Water Level Sensor
We often write a post and then learn something new and cool from the comments. The same thing happened when [Andreas] posted a video about monitoring fluid levels. Commenters told …read more Continue reading Blood Pressure Cuff Hacked into Water Level Sensor
Coin Acceptors are Higher-Tech Than You Think
Coin-operated machines have a longer history than you might think. Ancient temples used them to dispense, for example, holy water to the faithful in return for their coins. Old payphones …read more Continue reading Coin Acceptors are Higher-Tech Than You Think