Ok, with a little research I have found that the r/c servos are not compatible with "Smart Robotic Arm brackets" by crust crawler. So, now my choice is to build a 6-axis arm using SES brackets and I want to use a combination of HSR-5980SG and HS-7980TH servos for a reasonable torque. I have not used SES brackets before so I require expert guidance from the forum.
Anyone please write me the complete list of the exact SES parts required to build a 6-axis arm using HSR-5980SG servos.
I am really in a hurry to place an order from my school and therefore require expert advice in this regard.
Actually, my requirement is to assemble a robotic arm equivalent to "crustcrawler AX-18A smart robotic arm - http://www.crustcrawler.com/products/AX
... tic%20Arm/" in terms of precision (repeatability 2.5mm) and weight lifting capability (2-3 pounds, 0.91kg). I seek a solution from lynxmotion because I want to use r/c servos and a SSC32.
I think you will fail in this assignment as it currently is. If you only have limited time you should just get one of the lynxmotion arm kits and go with that. Your arm performance requirements indicate a DIY arm that will be more expensive and complex than you realize.
I think Zoomkat may be right in his answer. Perhaps you could give us a few more specifics about the requirements of your project:
- You speak of needing a "6-axis arm." Lynxmotion calls their AL5D a 4DOF arm. With optional wrist rotate, that would become 5DOF. But that may be in your ballpark if you are considering the gripper open/close servo as one of you axes. I am no expert, I remember reading that with robotic arms, the "end-effector" (gripper) is NOT
considered a DOF. So, 5DOF plus gripper would give you six axes.
- Less happily, you speak of needing to lift 2-3 pounds using HiTec standard size servos. Lynxmotion says the AL5D is capable of lifting 13 ounces. That is with HiTec mega sized servos (and SES brackets) at the shoulder and elbow positions.
I just built the BotBoarduino version of the AL5D with heavy duty wrist rotate two months ago. It was a very satisfying project which will be even better when I screw on some homemade grip expanders. There is no way it will lift even two pounds.
Other builders more expert than I about a wider range of HiTec servos and SES parts may be able to give you better help.
My suggestion since your time is limited would be to download and study the free AL5D assembly guides to see what is possible. Then, if you still can, readjust your project parameters with your school. Afterall, it is probably more important to demonstrate the theory of robotic arms than to lift 2-3 pounds.
Good luck to you, Ted