Collaborate Disseminate
We aren’t sure what made him think of it, but [Proper Printing] decided to make an FDM printer lay down resin instead of filament. Why? We still aren’t sure, but …read more Continue reading Madness or Genius? FDM Printing with Resin
I don’t think there was ever a correspondence school called the “Close Cover Before Striking School” but since book matches — which used to be a thing when most people …read more Continue reading TV Repair by Mail
[Ringway Manchester] has an interest in numbers stations. These mysterious stations send presumably coded numbers or other coded information. However, it is rare that anyone claims credit for these stations. …read more Continue reading Number Stations Gone Wild
[Applied Science] wanted to make some metal parts with a lot of holes. A service provider charged high tooling costs, so he decided to create his own parts using photochemical …read more Continue reading Better Sheet Metal Parts with Chemistry
We imagine that if [Tech Minds] told us he was listening to the HF bands, we might ask him which one? His reply might just be “All of them.” That’s …read more Continue reading Listen to 64 MHz at Once
Many times when someone tells you that language X is “better” at something they really mean that it has better built-in libraries for that task. Java is a great example. …read more Continue reading Pretty Petite Picolibc Powers Processors
Early 3D printers usually had a microswitch that let you know when the Z axis was at the zero point. There was usually an adjustment screw so you could tune …read more Continue reading 3D Printer Z Sensor Claims 0.01 mm Resolution
One of the great things about plastic is that it can be relatively flexible. We see things all the time that snap together, but when 3D printing, you don’t often …read more Continue reading Oh Snap! 3D Printing Snapping Parts Without Breakage
We take shortcuts all the time with our physical models. We rarely consider that wire has any resistance, for example, or that batteries have a source impedance. That’s fine up …read more Continue reading The Importance of Physical Models: How Not to Shoot Yourself in the Foot or Anywhere Else
Among old CPUs, the 6809 never got as much attention as some of its cousins. The Radio Shack CoCo used it and so did a construction article in Wireless World …read more Continue reading Old 6809 Computer Lives Again on Breadboards