http://mashable.com/2015/03/17/robot-arm-gets-smaller-smarter/

At just 23 lbs., UR3 is almost 20 lbs. lighter than Universal Robots mid-range robot arm (theres a larger UR10) and is approaching true portability. The company will officially unveil UR3 on March 23 at Automate 2015 in Chicago. UR3 features three joints, 360-degree rotation on wrist joints and, new to the UR3, infinite rotation in on the end joint.

Universal Robot’s UR5, the robot arm I programmed to give me a high five, now has a pint-sized brother, UR3, and it’s capable of pretty much everything UR5 can do, just in a much smaller space.

UR3 features three joints, 360-degree rotation on wrist joints and, new to the UR3, infinite rotation in on the end joint. Fully extended, it has a 19.7-inch reach. Like its robot arm siblings, UR3 can be programmed through the proprietary tablet interface (and is attached to the same large controller box) or by moving the robot arm into positions it will repeat when you execute its program. The robot arm is also designed to work alongside humans; if it detects as little as 11 lbs. (the default setting is roughly 37 lbs.) of force against one of its moving parts, it will stop moving. To put this in perspective, a worker pushing a finger against the robot arm is enough to stop it.

“With the UR3, table-top automation is easy, safe and flexible; a single worker can accomplish what traditionally would be a two-person task by having the UR3 robot as a third-hand helper,” said CTO and co-founder of Universal Robots CTO and co-founder Esben Oestergaard.

The robot is capable of handling up to a 6.6 lb. payload. It also has some new technology inside, including a new motherboard and programming for, Universal Robots claims, a faster boot-up time.

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