Robotic arm hanging on the side of the robot

Lynxmotion Robot Arms
1

Hi, I am thinking about kitting my robot with an arm that should be able to pick up small items on the floor or on a table. I want the arm to be on the side of the robot just like a shoulder joint.

I see that there is a nice SES robotic arm but it seems to be built so that the base has to be horizontal and not vertical as it has to be on my robot. Would my best bet be to construct one “manually” by choosing server erector parts? I probably have to find the correct length on the aluminium tubing also so that the robot can rest its arm on the “wheel-arc”.

Here is my robot project: robot dot lonningdal dot net (I am no spammer btw :slight_smile:

And as you can see I actually have space for one arm on each side there, although I’d like to start with just one.

I am using Robot Electronics SD21 controller for my servos, which I also plan to use for this arm.

I think I need a minimum of 3 axes, shoulder, elbow, wrist (no rotation) + gripper, although it would be nice to have 2 axis on the elbow so that it could grip inwards to the front of the robot also.

For the shoulder I guess I should also consider using some powerful servos as well, since thats where most of the weight will be when its lifting something?

2

Thats the beauty of the SES brackets, you can make anything with them. Order the brackets you need to make your robot the way YOU want it, buy the little grip kit and build.

3

Yes I see the SES items are a good collection of parts to make this arm happen. But to start it, what parts do you recommend for fastening the shoulder joint on the side? And do you recommend having two servos there for extra lifting strength? (one on the inside of the “wall” and another inside the arm shoulder joint).

Since I have to order this from Norway I really want to be sure I get the correct parts in one order so I dont end up having to do multiple orders (shipping costs can be expensive).