Printing point-to-point circuits on a 3D printer

May 4, 2012 By 8 Comments

[CarryTheWhat] put up an Instructable on his endeavours in printing circuit boards for solder free electronics. He managed to print a flashlight where the only non-printed parts are a pair of batteries and a couple of LEDs.

The circuit is a weird mix of point to point and Manhattan style circuit construction; after modeling a printed plastic plate, [CarryTheWhat] … Read the rest

Filed Under: 3d Printer hacks, cnc hacks Tagged With: , , , , , ,

Processor built with Transistor-Transistor Logic

October 30, 2009 By 26 Comments

cpu-built-from-ttl

[Donn] wanted know exactly what is going on inside of a processor so naturally he built a CPU out of TTL components. He had previously built a couple of versions of a computer based on the Z80 processor. Using the troubleshooting skills he learned and a second-hand textbook, he set to work using 74LS series chips connected using … Read the rest

Filed Under: classic hacks, computer hacks Tagged With: , , , , , ,