Home Brew

Discussions regarding building a walking robot at home. Most of the robots participating at Robo-One competitions are custom fabricated.
3 postsPage 1 of 1
3 postsPage 1 of 1

Home Brew

Post by Thex1138 » Wed Feb 03, 2010 4:47 am

Post by Thex1138
Wed Feb 03, 2010 4:47 am

Hi Folks,
I am thinking of a project to design and fabricate my own biped robot.
It's more of a challenge and excercise in design...
I see a lot of people have done it before, I have roboard for controller.
I am looking to design and have fabricated the servo connectors for joints and body. Design them in CAD and have them fabricated, buy screws, wires etc,.

Any advice on which servos would be the best to use? Not too expensive though :wink:
maybe US$50 per servo is enough? The Trossen parts look good but they have all their own connectors anyway...
kondo servos look good but can be pricey for the tougher ones...
Any thoughts?
Hi Folks,
I am thinking of a project to design and fabricate my own biped robot.
It's more of a challenge and excercise in design...
I see a lot of people have done it before, I have roboard for controller.
I am looking to design and have fabricated the servo connectors for joints and body. Design them in CAD and have them fabricated, buy screws, wires etc,.

Any advice on which servos would be the best to use? Not too expensive though :wink:
maybe US$50 per servo is enough? The Trossen parts look good but they have all their own connectors anyway...
kondo servos look good but can be pricey for the tougher ones...
Any thoughts?
Thex1138 offline
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 74
Joined: Sun Dec 06, 2009 1:34 pm
Location: Sydney, Australia

Post by Ausrobo » Wed Feb 03, 2010 2:04 pm

Post by Ausrobo
Wed Feb 03, 2010 2:04 pm

Thex,
I have same plan. I started with the 3HV to learn how. It looks to me like the Roboboard is a great choice for controller.
I think the servo choice will be determined by the size of the bot. I was planning for around 1m which means I will need something around the Kondo 6003HV. Very expensive, so I think this will be a slow project. Also I will have to teach myself CAD, so I can some parts fabricated. It really sounds hard now!
Thex,
I have same plan. I started with the 3HV to learn how. It looks to me like the Roboboard is a great choice for controller.
I think the servo choice will be determined by the size of the bot. I was planning for around 1m which means I will need something around the Kondo 6003HV. Very expensive, so I think this will be a slow project. Also I will have to teach myself CAD, so I can some parts fabricated. It really sounds hard now!
Ausrobo offline
Savvy Roboteer
Savvy Roboteer
Posts: 35
Joined: Sun Sep 27, 2009 10:05 pm

Post by tempusmaster » Thu Feb 04, 2010 3:00 pm

Post by tempusmaster
Thu Feb 04, 2010 3:00 pm

I have to agree with Ausrobo. The challenges of building a successful humanoid aren't trivial. The biggest issue is that you have to develop expertise in a number of different areas including mechanical design, statics, dynamics, electronics, programming, and a few others.

It's all possible. As you mentioned, others have done it. The top builders here all started with a basic kit then started to hack, modify, and replace major parts of it as they gained experience. Another good example is Matt Bauer. He went from a Robonova-1 kit to a full custom self-designed humanoid in about 18-24 months.

On the servo choice question, there are quite a few choices - Kondo, Futaba, and others from Korea, Taiwan, etc. Price is important, of course, but a biggest factor for me was selecting something that had a group of users I could ping for advice and guidance when I ran into problems. I went with Kondo because there is a wealth of information and big user community here in Japan - but it's almost all in the Japanese language...
I have to agree with Ausrobo. The challenges of building a successful humanoid aren't trivial. The biggest issue is that you have to develop expertise in a number of different areas including mechanical design, statics, dynamics, electronics, programming, and a few others.

It's all possible. As you mentioned, others have done it. The top builders here all started with a basic kit then started to hack, modify, and replace major parts of it as they gained experience. Another good example is Matt Bauer. He went from a Robonova-1 kit to a full custom self-designed humanoid in about 18-24 months.

On the servo choice question, there are quite a few choices - Kondo, Futaba, and others from Korea, Taiwan, etc. Price is important, of course, but a biggest factor for me was selecting something that had a group of users I could ping for advice and guidance when I ran into problems. I went with Kondo because there is a wealth of information and big user community here in Japan - but it's almost all in the Japanese language...
Latest robot news, information, reviews, hacks, photos, and videos - with special on-site coverage from Japan
http://www.robots-dreams.com
tempusmaster offline
Site Admin
Site Admin
User avatar
Posts: 532
Joined: Thu Oct 27, 2005 1:00 am


3 postsPage 1 of 1
3 postsPage 1 of 1