Posts Tagged ‘RX-64’

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! =)

Giger is ready for iHobby!

Wednesday, October 21st, 2009

We’ve been busily preparing for the iHobby 2009 show this week, but I figured I would share a little demo video of Giger. He now sports a TinyCylon eye from DaleWheat.com, and has a few new fighting moves up his sleeve, ready for some fights at Chibotica during iHobby! Walking gait is still obviously a work in progress, but what is being demonstrated in the video is the ability to pan/tilt the torso while walking, which makes the walking gait even more unsteady. Enough jabbering, here’s a bit of video!

RX-64: Just one more weapon in Skynet’s arsenal

Thursday, April 30th, 2009

I remember being blown away at how strong my first hobby servos were when I built my Hexapod 2 from Lynxmotion about 12 years ago. In comparison, they were literally just a fraction of the strength of modern digital servos, and the gap widens even further when put up against a robotic actuator such as the RX-64 Smart Actuator.

I was working on my mech Hagetaka the other night and made the mistake of grabbing at the robot to stabilize it while it was moving, and managed to graze my finger in one of the joints. It drew blood and immediately reminded me that working with these types of servos was an entirely different ballgame than your standard hobby servo. With that in mind, we put together a little demonstration video of just how powerful these servos can be! Enjoy!

Hagetaka: A Bipedal Combat Robot

Thursday, April 16th, 2009

Remember when we teased you with a stack of RX-64 servos? Well its time to unveil a bit more of what we’re working on for the upcoming Mech Warfare competition at Robogames 2009. Meet Hagetaka; a 7DOF per leg biped built around the powerful RX-64 servo from Robotis. This robot boasts 14 RX-64s, 2 RX-28s, a custom aluminum chassis machined by sponsor Big Blue Saw, an onboard linux based Gumstix computer with a PS3 Sixaxis controller , a WiFi video server using a Headplay Personal Cinema System for remote piloting, and of course dual automatic airsoft guns. Video and more info will be available in the near future, and be sure to check out the June issue of SERVO magazine for the first in a series of articles detailing the build process of this Mech.

Click for larger image.

New parts are in the house!

Wednesday, April 8th, 2009
We have more goodies in and cannot wait to share! We’re serious, it’s like Christmas morning each day we get new stuff in, just ask our extremely annoyed shipping/receiving department about it. New product shows up and our techs swarm in like vultures!
First up we have the Propeller Education Kit which is an absolute steal at $99.99. Included is everything you need to get started using Parallax’s very capable Propeller microcontroller technology. Why use a normal microcontroller when you can get 8 of them in a single chip? Included in the kit is a Propstick USB, a Propeller Fundamentals Lab/Project book, various components needed for said projects, and some neat interconnecting breadboards for rapid prototyping.
Propeller
We’re also proud to introduce our new Mosquit-IO Pan/Tilt kit! The Mosquit-IO is a board we had custom designed specifically to answer the call of a low cost pan/tilt controller, bringing the price down $20 from our previous Pan/Tilt Kit. The Mosquit-IO can control two servos and a 6v DC motor, and is also available separately. A USB interface, simple command syntax, and provided .NET example code make this very easy to get up and running.
mosquit IO
Drooling over the insane torque and features of the DX-117, RX-28, RX-64 Robot servos from Robotis? We are too, and we’re making it even easier to implement them into your next project by offering a High Quality Aluminum bracket system for these. Hinge brackets, side brackets, bearing hubs, and thrust bearings! Everything you need to get started in building the ultimate high torque robot!
of-64h

RX-64s are crazy strong…

Monday, February 23rd, 2009

Our good friend Jon Hylands (who is an amazing Roboticist, definitely check out his work on the Bioloid system) is working on a few new projects and shot a quick video which is pretty impressive to anyone who has ever built a robotics arm. What you see in the video below is an RX-64 Robotis servo lifting a full coke can at a 30 cm arm length. While that seems trivial to we humans, packing that much torque into such a tiny servo is a great demonstration of how much servo technology has advanced in the last few years. The servo isn’t even being strained during these tests. You might note a bit of jerky movement, that is because the servo is being manually fed positional instructions via a slider bar. Most advanced robots use some form of interpolation which smooths movements considerably.

We’ll also be revealing our big internal project which uses 14 of the RX-64 servos in the near future… =)

Luckily, Sarah Conner hasn’t shown up yet

Monday, January 26th, 2009

But we’re preparing for when she shows up to blow us away, because this might very well be the start of Skynet.

Robot pr0n warning. (Click for a larger picture)

Well, at least nobody can accuse us of under-engineering. Yup, that’s a pyramid of RX-64s. This is a teaser photo of a new project brewing in the Trossen Robotics Lab for the upcoming Mech Warfare competition. A fully custom aluminum frame and bracket system is being machined courtesy of Big Blue Saw, our sponsor on the project. Did we mention we’re giving it weapons? /snicker