Sandia Labs “Hopper” Robot

July 22, 2011 by Jeremy Cook 29 Comments

Made by Boston Dynamics under contract from Sandia Labs, this “hopper” is quite incredible as you can see in the video after the break. Boston Dynamics is no stranger to great robotics designs, including the well known “Big Dog” four-legged robot. This robot, although possibly less advanced, has a very unique trick up it’s sleve.

This robot’s distinguishing feature is that it can navigate autonomously not only with wheels, but also with a powerful single leg that allows it to jump over obstacles of up to 25 feet. Although envisioned to “deliver a payload” in an urban environment, one could imagine a terrifying horde of these ‘bots jumping into action armed with bombs or other weapons.

According to Sandia’s website is that this form of locomotion has been “shown to be five times more efficient than hovering” when trying to get around obstacles under 10 meters. Technical challenges that have been overcome include managing the shock of landing and producing a leg powerful enough to jump to this height. Continue reading “Sandia Labs “Hopper” Robot” →

Roll Your Own Toner Transfer Dice

July 22, 2011 by Mike Nathan 11 Comments

diy_toner_transfer_dice

If you happen to be in the market for some designer dice or need a set of custom dice for a game you have created, you could pay a ton of money to have them made, or you can do it yourself.

[Dicecreator] runs a blog dedicated to the ins and outs of creating DIY game and collector’s dice. This subject is not something that we would normally be interested in, but one particular item caught our interest – DIY toner transfer dice. Very similar to the process of creating a toner transfer PCB, he walks through the steps required for making your own dice with very little overhead.

The steps are likely quite familiar to those who have fabricated your own PCBs at home. He starts out with blank dice, sanding the sides down with increasingly fine sandpaper until they are ready for the transfer process. An image is printed on glossy inkjet photo paper, which is then applied to each die with a standard clothes iron. After a bit of soaking in water to remove the excess paper, the die is ready to go.

Sure it’s not exactly rocket science, but it is a cool little trick that would work quite well if you are trying to replace a lost die or if you simply want to make a fun gift for a friend.