Posts Tagged ‘Dynamixel’

Trossen Robotics Shop Talk # 2

Wednesday, October 31st, 2012

Trossen Robotics Shop Talk 2

We’re constantly talking about new technologies, products and media that relate to robotics. Now, we’ve decided to let you in on the conversation, and to take a peek at the things that are piquing our interest.

This episode focused on Robotis and their line of Robot Actuators, the DYNAMIXELS.

(0:47)First Andrew talked about the MX DYNAMIXEL robot actuators, including their history, features and why he loves them so much.

(7:44) Andrew went on to talk about the amazing new DYNAMIXEL PRO Robot Actuators. These new powerful and precise actuators are are designed for full-scale robots. With up to 4x the torque of the current most powerful DYNAMIXEL, these servos have everyone at Trossen Robotics very excited. These actuators will be available in 2013, and you can get more information here

(16:27) Matt and Andrew went on to talk about ROBOTIS and why they’re so successful. They also shared some stories of their trip to South Korea (19:35) and some rarely seen footage of the trip.

(23:10) In the Sneak Peak section, they showed off some of our products that are currently in the pipeline. Matt showed off a new mobile robotics platform based on the Budget Bot. However, this platform uses the Arbotix RoboController and will have a built in robotic arm, making it an amazing mobile research platform. Andrew showed off the two new MX based Robotic Arms that Trossen Robotics will be releasing. These arms use the MX-28 and MX-64 DYNAMIXEL servos, making them our most powerful and smooth arms to date. They also gave us a look at a new joystick control panel for controlling our robotic arms.

(28:54)Matt gave shout outs to both All Electronics and Alltronics, two great places for sourcing electronic parts and components. Andrew gave a shout out to American Science and Surplus, a Chicago based surplus store that has everything from military supplies to electronic components. He also mentioned Mech Warfare Warrior Ryan Lowerr and his projects, including his ATMEL based tracking system

(31:31)For this week’s Tips and Tricks, Matt shared tips about weights, both for testing load capacities on our robots, and for weighing down arms and cameras. Andrew showed us how to make a quick experimenter’s power supply with a computer power supply, and where to go once you need even more amperage.

DYNAMIXEL PRO Actuators are coming!

Thursday, October 11th, 2012

Check out even more information on the DYNAMIXEL PRO line!

Something new is brewing at ROBOTIS and we’re really excited! The new DYNAMIXEL PRO actuators will be the strongest, most precise DYNAMIXELs to date, and have been designed with full scaled robots in mind. Some of the things we’ve learned about them include –

-10x Higher Torque/Precision over the DXL series
-Uses a Novel Gear Reduction System
-Current Based Torque Control
-Supports multiple communication protocols including CAN-Bus and RS-485

We’ll keep you posted as we learn more details about these amazing actuators. And once these actuators are available, look out for some awesome new Interbotix Labs products based around them.

Check out the Teaser Video below!

PhantomX Hexapod at Robo-One in Japan!

Thursday, September 6th, 2012

Robot Dreams has been covering the Robo-One competition in Japan and just posted this video of one of our PhantomX Hexapods in a qualifying round for the 4.5 meter dash. It’s always awesome to see our crawlers traversing the globe, and soon enough there will be a PhantomX Hexapod in every city, in every country. Not that we’re planning a hexapod uprising or anything. Definitely not.

New Dynamixel MX Series Servos Pack a Powerful Punch

Friday, July 13th, 2012

Robotis wowed the robotics community with the MX-28T, and recently they’ve expanded the MX line to include the TTL MX-64T and the MX-106T, as well as the RS-485 variants, the MX-28R, the MX-64R and the MX-106R.

These new servos have a contactless magnetic encoder, which offers 4x the resolution of the RX series. This makes them more accurate and even smoother than the old servos. Also upgraded, is the processor in each of these servos – a 32bit 72mhz Cortex M3! This beefy processor handles the newly implemented PID control algorithm. It can be used to maintain shaft position and can be adjusted individually for each servo, allowing you to control the speed and strength of the motor’s response. The new setup also offerers a 3Mbps bus. The ‘T’ variants use TTL communication and are compatible with other TTL servos like the AX-12 and the AX-18. Meanwhile the ‘R’ variants use RS-485, just like the RX series.

You might remember Don and Jason’s new robotic arm, which uses the new MX servos. But the real question is, what will you do with them?

AX-12 Robot Arm & Arbotix Demo

Thursday, August 25th, 2011

Banter, robots, video. Go!

Dynamixel Positional Feedback Demo

Monday, August 22nd, 2011

This video does nothing to dispel my friends’ belief that all I do is sit around and play with robots all day at work.

— Andrew – “Robot Whisperer”

Cross Dressing Robots!

Thursday, August 18th, 2011

Our old friend Che is a bit special. He has pet ducks, snakes, really ugly dogs, and a really hot wife. He wears his mom’s leather pants. He’s also into robo-masochism: meaning he lets his paintball-equipped robots shoot the crap out of him, all the while filming it for the internet’s enjoyment. We have weird friends.

He also has a great custom humanoid project that he has shared with the TRC, Hi No Hikari. This rather large humanoid robot is a kung-fu competitor and Mech-Warfare veteran. “It” also wears dresses, kimonos, and sometimes has flowers tucked into it’s mechanics. I don’t know, don’t ask me. We’re fully supportive of alternative robot lifestyles, but sometimes it’s better that we just not ask. Giger did not appreciate the dress at last year’s Mech-Warfare. He muttered something about “damn hippies” and proceeded to shoot Hi No Hikari in his/her flowery face.

With all that said, it’s been a great learning experience for Che, and one that he has shared with us every step of the way. This was his first attempt at a PLM design and he started off using AX-12+’s, eventually upgrading to the more powerful RX-28s.

Seeing this project progress from Hi No Hikari’s first steps to what he’s achieved now has been great! Check out his latest progress in the video below, we can’t wait to see even more come from this project!

RX-Bridge Enables DX/RX/EX Series Dynamixels on ArbotiX

Tuesday, April 6th, 2010

ArbotiX RX Bridge

Now available!

The ArbotiX RX-Bridge expands the capabilities of the ArbotiX Robotcontroller by enabling the use of DX-117, RX-28, RX-64, and EX-106+ Dynamixel Servos. This add-on board converts your existing ArbotiX Robocontroller TTL serial ports into an RS-485 serial protocol compliant port.

The RX-Bridge answers the call for a high end, fully programmable controller for the higher end range of Dynamixels at a much lower pricepoint than other less-capable controllers on the market.


Giger v2.0 – Initial Walking Gait Progress

Tuesday, March 2nd, 2010

New upgrades! Giger now uses 10x EX-106+, 6x RX-64s, and 8x RX-28s for a total of 24 DOF.

Giger’s upgrades got finalized late Sunday night and I had a bit of time to sit down and start to work on the walking gaits (from scratch). The EX-106+ is roughly 4x more precise than all previous Dynamixels, so the positional values do not translate over well when upgrading from a previous model. What does that mean? It was far simpler to just start over rather than try to scale the values step by step. All new custom brackets used in the legs and feet, as well as new elbow/shoulder brackets and arm extensions. Brackets were designed in Autodesk Inventor 2008 and machined by Rapid Sheet Metal. It’s worth mentioning that all of the custom, as well as the stock, brackets and frames that are used in Giger’s arms and legs are available in our store on our Dynamixel Servo & Bracket page! Even his ankles/hip joints or his entire legs!

A lot of projects tend to only show updates after many dozens and/or hundreds of hours of progress, but I like to show the little steps as I feel it gives one a better view of the evolution of a project and what goes into making a robot work. Keep in mind; I have this gait tuned to a very slow rate so that I can work on the balance and COG shifting correctly, it can then be sped up to a more realistic, useful speed. Here’s a short video of my initial walking gait progress (about 2 hours of programming work so far) on Giger 2.0:

Giger: Humanoid Robot Overview

Wednesday, February 24th, 2010

I’ve been busy at work with Giger installing some upgrades before Robogames (in the tune of 10x EX-106+ actuators, as well as brand new machined brackets from Rapid Sheet Metal). That said, we decided to use some of the random footage we had taken of Giger to give an overview of the robot in it’s first revision, when it only had RX-64s powering its legs. We’ll have a lot more information, pictures, and video on Giger v2.0 in the near future!

BTW- If anyone is looking for a solid place to get some sheet metal cut/bent or some parts machined, check out Rapid Sheet Metal and their sister company Rapid Machining. I’ll give a bit more in-depth review of them in the followup post where we’ll talk more about Giger 2.0, but I was absolutely blown away by their quality and customer service, so I’ll say it here as well. Check em out! Tell em we sent ya! =)