Here's a video update about the
progress of the LEGOtest machine #2 (#legotest)
Here is some extra info and progress
starting with something I forgot to mention in the video: the shorter
lever beam.
The lever was too long and, out of sheer
luck, one of the shorter beams was the exact length needed. After
that, I finally strengthened the base by removing the last LEGO legs
and installing the Makeblock leg I showed in the video.
Once that was done it just made sense
to attach the Arduino to the front leg as you can see in this picture
of the whole machine:
The Makeblock parts are provided by The Little British Robot Company
As for the double action on the new
motor; it both assembles the LEGO bricks and helps disassemble them.
The two movements are difficult to
perform with a single motor since assembling needs a lot of strength
while disassembling is all about subtlety. The part was first
designed using LEGO Technics and it took 2-3 iterations before I found
a way to achieve the two movements. To better understand the motion,
check out the video.
