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ChrisMaca
Joined: 29 Oct 2011
Posts: 4
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More info on the robot design
Hi guys, thank you very much for the suggestions, let me provide a bit more information.
In terms of power I am prototyping with linear actuators but I plan to swap these out for hydraulic rams. Hydraulics are stronger, smoother, lighter at the arms abut more expensive. For the prototype the controller will drive the linear actuators, when I swap to hydraulics they will drive variable hydraulic vales.
Steve, Thanks for the suggestion , I will grab one of your controllers and try it out, If it works well I can get a few more. Which one would you suggest, (i'm guessing the ESCheap85?)
In terms of control, I'm going simple at the start, it is essentially a joy stick to control each motor inwards and outwards, but the joy sticks are mounted on the joints of a small control arm. As you move the control arm, the robot arm moves. I don't want absolute or mirror positioning at this stage, I want relative positioning. ie you move the control arm out and the large arm moves out until you pull the small arm back. This way small movements in the control arm can drive a full range of motion in the robot arm.
So what I’m looking for is a stand alone joystick or a linear sensor to sense movements in the control arm elbow or shoulder.
I'm assuming a stand alone joystick shouldn't be too hard to find, but I haven't seen one
If you have any suggestions in this area they would b greatly appreciated
Thanks Chris
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Tue Nov 01, 2011 5:29 am |
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