29 Jun '17, 5pm

Making Spirographs with LEGO and Math

Master LEGO builder [Yoshihito Isogawa] has been on a roll lately, cranking out a number of robots that make drawings reminiscent of the classic Spirograph toy. For instance, he built an elegant drawbot out of LEGO elements, seen above. At first glance the monicker “spirograph” seems wrong, because where are the gears? However, [Yoshihito] has them stashed underneath the sheet of paper, with magnets controlling the pens. His drawbot consists of a platform (cleverly, an inverted LEGO plate) upon which a sheet of paper is laid. One or two pen holders, each with a pair of magnets underneath, rest on the sheet of paper. Beneath the plate, two pairs of spinning magnets rotate around a double layer of 11×11 curved racks , which then play the role of the classic spirograph rings. An EV3-controlled motor powers the whole thing. He also makes use of an obscure part–the 14-tooth bev...

Full article: http://hackaday.com/2017/06/29/making-spirographs-with-le...

Tweets

Email deliverability: making it to the inbox

searchengineland.com 29 Jun '17, 5pm

With an ROI of 122% email is one of the most effective marketing channels. But in order to reap the benefits, marketers mu...

#Email deliverability: making it to the inbox #...

searchengineland.com 29 Jun '17, 10pm

With an ROI of 122% email is one of the most effective marketing channels. But in order to reap the benefits, marketers mu...

INTERVIEW: @sobshaha on making pop interesting

INTERVIEW: @sobshaha on making pop interesting

juice.com.sg 03 Jul '17, 7am

By Indran P • July 3, 2017 in Music Sobs on making pop interesting In the water, we’re beautiful. But in dreams, we’re so ...

We Dig This LEGO Excavator Conversion

We Dig This LEGO Excavator Conversion

hackaday.com 04 Jul '17, 8am

[Frank] was lucky enough to score a bucket wheel excavator LEGO set as a birthday present, and we won’t lie – we’re jealou...

How to make limoncello like an expert

How to make limoncello like an expert

mnn.com 02 Jul '17, 8pm

Use a vegetable peeler to peel thin strips of the rind away from the lemons. If there is any white pith left on the unders...

EV3DEV Lego Linux Updated

hackaday.com 24 Jun '17, 2am

The ev3dev Linux distribution got an update this month. The distribution targets the Lego EV3 which is a CPU Lego provides...

EV3DEV Lego Linux Updated

hackaday.com 24 Jun '17, 2am

The ev3dev Linux distribution got an update this month. The distribution targets the Lego EV3 which is a CPU Lego provides...