I am new to robotics and am working on designing a Biped. I am interested in putting a 6DOF arms on the biped.
Shoulder Rotate (Front to Back)
Shoulder (Up Down)
Elbo
Wrist Rotate
Wrist Bend
Griper Hand
I have looked at some of the examples of what is here on Lynx for arms, but I am looking for a combination of the Biped Nick arm, and the Jonny 5 fore arm. Can Anyone help me with the design of this and a list of SES parts I will need to create an arm. I am having a tough time visualizing all the parts and how they will go together.
The other Idea I have been toying around with is putting a little gripper as the hand on one arm. Has anyone ever done this? Thank you in advance for your time and suggestions.
Here are Examples of what you can do with the servo Erector set Including The list of parts needed to build the Biped and the little gripper on some brackets. lynxmotion.com/ViewPage.aspx … goryID=102
One quick clarification. A hand or gripper open and close axis is not usually refered to as a DOF. So you are really wanting to build a 5DOF arm with hand. The refrence to a combination of the Biped Nick and Johnny 5 arm is confusing because they are essentially identical. I have wanted to make a biped with little grips on it too. It should work well.
Ok, I guess I need to be more specific. On the Jonny 5 Fore arm it has a wrist rotate and Wrist bend with a Gripper hand. The thing I was looking to add is an elbo. I like the sholder on the biped nick. So I am basically looking for the elbo between the two pieces (Nick Shoulder and Jonny 5 forearm). Is this making any scence? Thank You again for your help.
So they are exactly the same. Anyway it should be no real issue to ad an axis. It’s just an ASB-04 and an ASB-09 or ASB-11. Also there may be a use for the ASB-16 as it is sort of like an ASB-09 and an ASB-04 combined. I know it can be hard to visualize. Sometimes it helps to have the brackets in hand to see how they fit and work together.
One way you can visualize a design without actually having to build it is to use a 3D CAD program, such as Alibre Xpress and use the 3D Models available here. Almost everything, especially the SES stuff, is available in Alibre format now. Alibre Xpress is FREE for unlimited use, and allows using 10 to 15 unique parts per assembly.
I think Alibre Xpress is very easy to learn to use.
That is what I was looking for. Adding an Axis between where the arm rotates from the sholder, and the fore arm. Thank you for your patience and clearification.
I agree, it just takes some patience to learn how to do it, but once you get the hang of it, you can design anything up to 15 parts. This will allow you to see how the parts of your robot will come together.
I am not sure AutoCad experience will help you with Alibre Xpress, unless the versions of AutoCad you have used are fully 3D capable. Alibre Xpress, and all the Alibre Design versions are full 3D CAD programs, with the ability to create 2D drawings that are linked to your 3D models. You change either the 2D or the 3D and the other one reflects the necessary changes.
I’ve been using Alibre Design for almost a full year now (Alibre Design Expert, almost paid for), so feel free to PM me with any questions you have and I will help as much as possible.
With AutoCAD I was Drafting in 3D, and you could obtain your 2D planed views off the 3D model. It however doesnt have the Solids effect where it won’t prevent you from overlapping things that should not be overlapped. I am at work right now, doing a little trolling. When I get home I am going to Download the program and start messing around with it.
Thank You all for the help. I look forword to the project.
