Fresh hacks every day
Camera lenses are expensive and if you're like us, you can easily find really cheap lenses that your camera can't use. [Sam] has a Canon EOS and a bunch of old-school FD lenses at his disposal. There's one problem though: using these old lenses with an adapter means focusing at infinity is out of the question. Thankfully, he put up a few videos (part 1, part 2, and part 3) walking through the … [Read more...]
Hackaday reader [David] was looking for a cheap and easy way to spot weld copper tabs together. As he notes in his writeup, the properties of copper which are most enticing, such as high thermal capacity, make welding it all that more difficult. His home-brew method of spot welding is admittedly quick and dirty, but it does get the job done quite well. He started off with an array of four 2.5V … [Read more...]
[Jon] has been developing a slick little RC robot in bits and pieces over the last year or so, which can constructed by anyone with access to a 3D printer. Servos and electronics aside, the entire thing can be put together in short order using the plans he posted on Thingiverse. The robot makes use of four “caterpillar” type bots, which are all connected via a central frame. Once [Jon] had … [Read more...]
Build details for Raspberry Pi prototype With the launch of Raspberry Pi approaching the development team released the details about the prototypes from about five years ago. The board was originally based on an ATmega644 and built on some perfboard. 'Zero Energy Device' challenge We call BS on the title of this one, but the goal of finding devices that don't use disposable energy … [Read more...]
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